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Merge branch 'dev' into docs

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This commit is contained in:
Lindsey Heagy
2016-04-05 17:47:17 -07:00
parent 021e7c794c 31d418bed8
commit 756b738ef2
21 changed files with 814 additions and 461 deletions
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SimPEG/DCIP/BaseDC.py
+11 -13
View File
@@ -200,11 +200,11 @@ class ProblemDC_CC(Problem.BaseProblem):
return F
def Jvec(self, m, v, u=None):
def Jvec(self, m, v, f=None):
"""
:param numpy.array m: model
:param numpy.array v: vector to multiply
:param numpy.array u: fields
:param Fields f: fields
:rtype: numpy.array
:return: Jv
@@ -225,11 +225,10 @@ class ProblemDC_CC(Problem.BaseProblem):
# Set current model; clear dependent property $\mathbf{A(m)}$
self.curModel = m
sigma = self.curModel.transform # $\sigma = \mathcal{M}(\m)$
if u is None:
if f is None:
# Run forward simulation if $u$ not provided
u = self.fields(self.curModel)[self.survey.srcList, 'phi_sol']
else:
u = u[self.survey.srcList, 'phi_sol']
f = self.fields(self.curModel)
u = f[self.survey.srcList, 'phi_sol']
D = self.mesh.faceDiv
G = self.mesh.cellGrad
@@ -251,19 +250,18 @@ class ProblemDC_CC(Problem.BaseProblem):
if self.Ainv is None:
self.Ainv = self.Solver(dA_du, **self.solverOpts)
P = self.survey.getP(self.mesh)
P = self.survey.getP(self.mesh)
Jv = - P * mkvc( self.Ainv * dCdm_x_v )
return Jv
def Jtvec(self, m, v, u=None):
def Jtvec(self, m, v, f=None):
self.curModel = m
sigma = self.curModel.transform # $\sigma = \mathcal{M}(\m)$
if u is None:
# Run forward simulation if $u$ not provided
u = self.fields(self.curModel)[self.survey.srcList, 'phi_sol']
else:
u = u[self.survey.srcList, 'phi_sol']
if f is None:
# Run forward simulation if $f$ not provided
f = self.fields(self.curModel)
u = f[self.survey.srcList, 'phi_sol']
shp = u.shape
P = self.survey.getP(self.mesh)
SimPEG/DCIP/BaseIP.py
+4 -4
View File
@@ -14,12 +14,12 @@ class SurveyIP(SurveyDC):
Survey.BaseSurvey.__init__(self, **kwargs)
self._Ps = {}
def dpred(self, m, u=None):
def dpred(self, m, f=None):
"""
Predicted data.
.. math::
d_\\text{pred} = Pu(m)
d_\\text{pred} = Pf(m)
"""
return self.prob.forward(m)
@@ -143,10 +143,10 @@ class ProblemIP(Problem.BaseProblem):
J_x_v = - P * mkvc( self.Ainv * dCdm_x_v )
return -J_x_v
def Jvec(self, m, v, u=None):
def Jvec(self, m, v, f=None):
return self.forward(v)
def Jtvec(self, m, v, u=None):
def Jtvec(self, m, v, f=None):
self.curModel = m
# sigma = self.curModel.transform # $\sigma = \mathcal{M}(\m)$
SimPEG/DataMisfit.py
+22 -26
View File
@@ -22,11 +22,11 @@ class BaseDataMisfit(object):
Utils.setKwargs(self,**kwargs)
@Utils.timeIt
def eval(self, m, u=None):
"""eval(m, u=None)
def eval(self, m, f=None):
"""eval(m, f=None)
:param numpy.array m: geophysical model
:param numpy.array u: fields
:param Fields f: fields
:rtype: float
:return: data misfit
@@ -34,11 +34,11 @@ class BaseDataMisfit(object):
raise NotImplementedError('This method should be overwritten.')
@Utils.timeIt
def evalDeriv(self, m, u=None):
"""evalDeriv(m, u=None)
def evalDeriv(self, m, f=None):
"""evalDeriv(m, f=None)
:param numpy.array m: geophysical model
:param numpy.array u: fields
:param Fields f: fields
:rtype: numpy.array
:return: data misfit derivative
@@ -47,12 +47,12 @@ class BaseDataMisfit(object):
@Utils.timeIt
def eval2Deriv(self, m, v, u=None):
"""eval2Deriv(m, v, u=None)
def eval2Deriv(self, m, v, f=None):
"""eval2Deriv(m, v, f=None)
:param numpy.array m: geophysical model
:param numpy.array v: vector to multiply
:param numpy.array u: fields
:param Fields f: fields
:rtype: numpy.array
:return: data misfit derivative
@@ -89,7 +89,7 @@ class l2_DataMisfit(BaseDataMisfit):
"""
if getattr(self, '_Wd', None) is None:
survey = self.survey
if getattr(survey,'std', None) is None:
@@ -108,24 +108,20 @@ class l2_DataMisfit(BaseDataMisfit):
self._Wd = value
@Utils.timeIt
def eval(self, m, u=None):
"eval(m, u=None)"
prob = self.prob
survey = self.survey
R = self.Wd * survey.residual(m, u=u)
def eval(self, m, f=None):
"eval(m, f=None)"
if f is None: f = self.prob.fields(m)
R = self.Wd * self.survey.residual(m, f)
return 0.5*np.vdot(R, R)
@Utils.timeIt
def evalDeriv(self, m, u=None):
"evalDeriv(m, u=None)"
prob = self.prob
survey = self.survey
if u is None: u = prob.fields(m)
return prob.Jtvec(m, self.Wd * (self.Wd * survey.residual(m, u=u)), u=u)
def evalDeriv(self, m, f=None):
"evalDeriv(m, f=None)"
if f is None: f = self.prob.fields(m)
return self.prob.Jtvec(m, self.Wd * (self.Wd * self.survey.residual(m, f=f)), f=f)
@Utils.timeIt
def eval2Deriv(self, m, v, u=None):
"eval2Deriv(m, v, u=None)"
prob = self.prob
if u is None: u = prob.fields(m)
return prob.Jtvec_approx(m, self.Wd * (self.Wd * prob.Jvec_approx(m, v, u=u)), u=u)
def eval2Deriv(self, m, v, f=None):
"eval2Deriv(m, v, f=None)"
if f is None: f = self.prob.fields(m)
return self.prob.Jtvec_approx(m, self.Wd * (self.Wd * self.prob.Jvec_approx(m, v, f=f)), f=f)
SimPEG/Directives.py
+2 -2
View File
@@ -123,10 +123,10 @@ class BetaEstimate_ByEig(InversionDirective):
if self.debug: print 'Calculating the beta0 parameter.'
m = self.invProb.curModel
u = self.invProb.getFields(m, store=True, deleteWarmstart=False)
f = self.invProb.getFields(m, store=True, deleteWarmstart=False)
x0 = np.random.rand(*m.shape)
t = x0.dot(self.dmisfit.eval2Deriv(m,x0,u=u))
t = x0.dot(self.dmisfit.eval2Deriv(m,x0,f=f))
b = x0.dot(self.reg.eval2Deriv(m, v=x0))
self.beta0 = self.beta0_ratio*(t/b)
SimPEG/EM/Base.py
+37 -14
View File
@@ -2,14 +2,14 @@ from SimPEG import Survey, Problem, Utils, Models, Maps, PropMaps, np, sp, Solve
from scipy.constants import mu_0
class EMPropMap(Maps.PropMap):
"""
"""
Property Map for EM Problems. The electrical conductivity (\\(\\sigma\\)) is the default inversion property, and the default value of the magnetic permeability is that of free space (\\(\\mu = 4\\pi\\times 10^{-7} \\) H/m)
"""
sigma = Maps.Property("Electrical Conductivity", defaultInvProp = True, propertyLink=('rho',Maps.ReciprocalMap))
mu = Maps.Property("Inverse Magnetic Permeability", defaultVal = mu_0, propertyLink=('mui',Maps.ReciprocalMap))
rho = Maps.Property("Electrical Resistivity", propertyLink=('sigma', Maps.ReciprocalMap))
rho = Maps.Property("Electrical Resistivity", propertyLink=('sigma', Maps.ReciprocalMap))
mui = Maps.Property("Inverse Magnetic Permeability", defaultVal = 1./mu_0, propertyLink=('mu', Maps.ReciprocalMap))
@@ -21,7 +21,7 @@ class BaseEMProblem(Problem.BaseProblem):
surveyPair = Survey.BaseSurvey
dataPair = Survey.Data
PropMap = EMPropMap
Solver = SimpegSolver
@@ -51,7 +51,7 @@ class BaseEMProblem(Problem.BaseProblem):
if self.mapping.muMap is not None or self.mapping.muiMap is not None:
toDelete += ['_MeMu', '_MeMuI','_MfMui','_MfMuiI']
return toDelete
@property
def Me(self):
"""
@@ -71,7 +71,7 @@ class BaseEMProblem(Problem.BaseProblem):
return self._Mf
# ----- Magnetic Permeability ----- #
# ----- Magnetic Permeability ----- #
@property
def MfMui(self):
"""
@@ -109,7 +109,7 @@ class BaseEMProblem(Problem.BaseProblem):
return self._MeMuI
# ----- Electrical Conductivity ----- #
# ----- Electrical Conductivity ----- #
#TODO: hardcoded to sigma as the model
@property
def MeSigma(self):
@@ -120,18 +120,18 @@ class BaseEMProblem(Problem.BaseProblem):
self._MeSigma = self.mesh.getEdgeInnerProduct(self.curModel.sigma)
return self._MeSigma
# TODO: This should take a vector
# TODO: This should take a vector
def MeSigmaDeriv(self, u):
"""
Derivative of MeSigma with respect to the model
"""
"""
return self.mesh.getEdgeInnerProductDeriv(self.curModel.sigma)(u) * self.curModel.sigmaDeriv
@property
def MeSigmaI(self):
"""
Inverse of the edge inner product matrix for \\(\\sigma\\).
Inverse of the edge inner product matrix for \\(\\sigma\\).
"""
if getattr(self, '_MeSigmaI', None) is None:
self._MeSigmaI = self.mesh.getEdgeInnerProduct(self.curModel.sigma, invMat=True)
@@ -140,8 +140,8 @@ class BaseEMProblem(Problem.BaseProblem):
# TODO: This should take a vector
def MeSigmaIDeriv(self, u):
"""
Derivative of :code:`MeSigma` with respect to the model
"""
Derivative of :code:`MeSigma` with respect to the model
"""
# TODO: only works for diagonal tensors. getEdgeInnerProductDeriv, invMat=True should be implemented in SimPEG
dMeSigmaI_dI = -self.MeSigmaI**2
@@ -163,7 +163,7 @@ class BaseEMProblem(Problem.BaseProblem):
# TODO: This should take a vector
def MfRhoDeriv(self,u):
"""
Derivative of :code:`MfRho` with respect to the model.
Derivative of :code:`MfRho` with respect to the model.
"""
return self.mesh.getFaceInnerProductDeriv(self.curModel.rho)(u) * (-Utils.sdiag(self.curModel.rho**2) * self.curModel.sigmaDeriv)
# self.curModel.rhoDeriv
@@ -181,6 +181,29 @@ class BaseEMProblem(Problem.BaseProblem):
# TODO: This should take a vector
def MfRhoIDeriv(self,u):
"""
Derivative of :code:`MfRhoI` with respect to the model.
Derivative of :code:`MfRhoI` with respect to the model.
"""
return self.mesh.getFaceInnerProductDeriv(self.curModel.rho, invMat=True)(u) * self.curModel.rhoDeriv
class BaseEMSurvey(Survey.BaseSurvey):
def __init__(self, srcList, **kwargs):
# Sort these by frequency
self.srcList = srcList
Survey.BaseSurvey.__init__(self, **kwargs)
def eval(self, u):
"""
Project fields to receiver locations
:param Fields u: fields object
:rtype: numpy.ndarray
:return: data
"""
data = Survey.Data(self)
for src in self.srcList:
for rx in src.rxList:
data[src, rx] = rx.eval(src, self.mesh, u)
return data
def evalDeriv(self, u):
raise Exception('Use Receivers to project fields deriv.')
SimPEG/EM/FDEM/FDEM.py
+86 -86
View File
@@ -18,9 +18,9 @@ class BaseFDEMProblem(BaseEMProblem):
{\mathbf{C}^{\\top} \mathbf{M_{\mu^{-1}}^f} \mathbf{b} - \mathbf{M_{\sigma}^e} \mathbf{e} = \mathbf{s_e}}
if using the E-B formulation (:code:`Problem_e`
or :code:`Problem_b`). Note that in this case, :math:`\mathbf{s_e}` is an integrated quantity.
or :code:`Problem_b`). Note that in this case, :math:`\mathbf{s_e}` is an integrated quantity.
If we write Maxwell's equations in terms of
If we write Maxwell's equations in terms of
\\\(\\\mathbf{h}\\\) and current density \\\(\\\mathbf{j}\\\)
.. math ::
@@ -28,7 +28,7 @@ class BaseFDEMProblem(BaseEMProblem):
\mathbf{C}^{\\top} \mathbf{M_{\\rho}^f} \mathbf{j} + i \omega \mathbf{M_{\mu}^e} \mathbf{h} = \mathbf{s_m} \\\\
\mathbf{C} \mathbf{h} - \mathbf{j} = \mathbf{s_e}
if using the H-J formulation (:code:`Problem_j` or :code:`Problem_h`). Note that here, :math:`\mathbf{s_m}` is an integrated quantity.
if using the H-J formulation (:code:`Problem_j` or :code:`Problem_h`). Note that here, :math:`\mathbf{s_m}` is an integrated quantity.
The problem performs the elimination so that we are solving the system for \\\(\\\mathbf{e},\\\mathbf{b},\\\mathbf{j} \\\) or \\\(\\\mathbf{h}\\\)
@@ -37,76 +37,76 @@ class BaseFDEMProblem(BaseEMProblem):
surveyPair = SurveyFDEM
fieldsPair = Fields
def fields(self, m=None):
def fields(self, m):
"""
Solve the forward problem for the fields.
:param numpy.array m: inversion model (nP,)
:rtype numpy.array:
:return F: forward solution
:return f: forward solution
"""
self.curModel = m
F = self.fieldsPair(self.mesh, self.survey)
f = self.fieldsPair(self.mesh, self.survey)
for freq in self.survey.freqs:
A = self.getA(freq)
rhs = self.getRHS(freq)
Ainv = self.Solver(A, **self.solverOpts)
sol = Ainv * rhs
u = Ainv * rhs
Srcs = self.survey.getSrcByFreq(freq)
F[Srcs, self._solutionType] = sol
f[Srcs, self._solutionType] = u
Ainv.clean()
return F
return f
def Jvec(self, m, v, u=None):
def Jvec(self, m, v, f=None):
"""
Sensitivity times a vector.
:param numpy.array m: inversion model (nP,)
:param numpy.array v: vector which we take sensitivity product with (nP,)
:param SimPEG.EM.FDEM.Fields u: fields object
:param SimPEG.EM.FDEM.Fields u: fields object
:rtype numpy.array:
:return: Jv (ndata,)
:return: Jv (ndata,)
"""
if u is None:
u = self.fields(m)
if f is None:
f = self.fields(m)
self.curModel = m
Jv = self.dataPair(self.survey)
for freq in self.survey.freqs:
A = self.getA(freq)
Ainv = self.Solver(A, **self.solverOpts)
A = self.getA(freq)
Ainv = self.Solver(A, **self.solverOpts) # create the concept of Ainv (actually a solve)
for src in self.survey.getSrcByFreq(freq):
u_src = u[src, self._solutionType]
u_src = f[src, self._solutionType]
dA_dm_v = self.getADeriv(freq, u_src, v)
dRHS_dm_v = self.getRHSDeriv(freq, src, v)
dRHS_dm_v = self.getRHSDeriv(freq, src, v)
du_dm_v = Ainv * ( - dA_dm_v + dRHS_dm_v )
for rx in src.rxList:
df_dmFun = getattr(u, '_%sDeriv'%rx.projField, None)
df_dmFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_dm_v = df_dmFun(src, du_dm_v, v, adjoint=False)
Jv[src, rx] = rx.evalDeriv(src, self.mesh, u, df_dm_v)
Jv[src, rx] = rx.evalDeriv(src, self.mesh, f, df_dm_v)
Ainv.clean()
return Utils.mkvc(Jv)
def Jtvec(self, m, v, u=None):
def Jtvec(self, m, v, f=None):
"""
Sensitivity transpose times a vector
:param numpy.array m: inversion model (nP,)
:param numpy.array v: vector which we take adjoint product with (nP,)
:param SimPEG.EM.FDEM.Fields u: fields object
:param SimPEG.EM.FDEM.Fields u: fields object
:rtype numpy.array:
:return: Jv (ndata,)
:return: Jv (ndata,)
"""
if u is None:
u = self.fields(m)
if f is None:
f = self.fields(m)
self.curModel = m
@@ -121,12 +121,12 @@ class BaseFDEMProblem(BaseEMProblem):
ATinv = self.Solver(AT, **self.solverOpts)
for src in self.survey.getSrcByFreq(freq):
u_src = u[src, self._solutionType]
u_src = f[src, self._solutionType]
for rx in src.rxList:
PTv = rx.evalDeriv(src, self.mesh, u, v[src, rx], adjoint=True) # wrt u, need possibility wrt m
PTv = rx.evalDeriv(src, self.mesh, f, v[src, rx], adjoint=True) # wrt f, need possibility wrt m
df_duTFun = getattr(u, '_%sDeriv'%rx.projField, None)
df_duTFun = getattr(f, '_%sDeriv'%rx.projField, None)
df_duT, df_dmT = df_duTFun(src, None, PTv, adjoint=True)
ATinvdf_duT = ATinv * df_duT
@@ -145,7 +145,7 @@ class BaseFDEMProblem(BaseEMProblem):
Jtv += - np.array(df_dmT, dtype=complex).real
else:
raise Exception('Must be real or imag')
ATinv.clean()
return Utils.mkvc(Jtv)
@@ -155,23 +155,23 @@ class BaseFDEMProblem(BaseEMProblem):
Evaluates the sources for a given frequency and puts them in matrix form
:param float freq: Frequency
:rtype: (numpy.ndarray, numpy.ndarray)
:return: S_m, S_e (nE or nF, nSrc)
:rtype: (numpy.ndarray, numpy.ndarray)
:return: s_m, s_e (nE or nF, nSrc)
"""
Srcs = self.survey.getSrcByFreq(freq)
if self._formulation is 'EB':
S_m = np.zeros((self.mesh.nF,len(Srcs)), dtype=complex)
S_e = np.zeros((self.mesh.nE,len(Srcs)), dtype=complex)
s_m = np.zeros((self.mesh.nF,len(Srcs)), dtype=complex)
s_e = np.zeros((self.mesh.nE,len(Srcs)), dtype=complex)
elif self._formulation is 'HJ':
S_m = np.zeros((self.mesh.nE,len(Srcs)), dtype=complex)
S_e = np.zeros((self.mesh.nF,len(Srcs)), dtype=complex)
s_m = np.zeros((self.mesh.nE,len(Srcs)), dtype=complex)
s_e = np.zeros((self.mesh.nF,len(Srcs)), dtype=complex)
for i, src in enumerate(Srcs):
smi, sei = src.eval(self)
S_m[:,i] = S_m[:,i] + smi
S_e[:,i] = S_e[:,i] + sei
s_m[:,i] = s_m[:,i] + smi
s_e[:,i] = s_e[:,i] + sei
return S_m, S_e
return s_m, s_e
##########################################################################################
@@ -208,7 +208,7 @@ class Problem_e(BaseFDEMProblem):
def getA(self, freq):
"""
System matrix
.. math ::
\mathbf{A} = \mathbf{C}^{\\top} \mathbf{M_{\mu^{-1}}^f} \mathbf{C} + i \omega \mathbf{M^e_{\sigma}}
@@ -231,12 +231,12 @@ class Problem_e(BaseFDEMProblem):
.. math ::
\\frac{\mathbf{A}(\mathbf{m}) \mathbf{v}}{d \mathbf{m}} = i \omega \\frac{d \mathbf{M^e_{\sigma}}\mathbf{v} }{d\mathbf{m}}
:param float freq: frequency
:param numpy.ndarray u: solution vector (nE,)
:param float freq: frequency
:param numpy.ndarray u: solution vector (nE,)
:param numpy.ndarray v: vector to take prodct with (nP,) or (nD,) for adjoint
:param bool adjoint: adjoint?
:rtype: numpy.ndarray
:return: derivative of the system matrix times a vector (nP,) or adjoint (nD,)
:return: derivative of the system matrix times a vector (nP,) or adjoint (nD,)
"""
dsig_dm = self.curModel.sigmaDeriv
@@ -249,25 +249,25 @@ class Problem_e(BaseFDEMProblem):
def getRHS(self, freq):
"""
Right hand side for the system
Right hand side for the system
.. math ::
\mathbf{RHS} = \mathbf{C}^{\\top} \mathbf{M_{\mu^{-1}}^f}\mathbf{s_m} -i\omega\mathbf{M_e}\mathbf{s_e}
:param float freq: Frequency
:rtype: numpy.ndarray
:rtype: numpy.ndarray
:return: RHS (nE, nSrc)
"""
S_m, S_e = self.getSourceTerm(freq)
s_m, s_e = self.getSourceTerm(freq)
C = self.mesh.edgeCurl
MfMui = self.MfMui
return C.T * (MfMui * S_m) -1j * omega(freq) * S_e
return C.T * (MfMui * s_m) -1j * omega(freq) * s_e
def getRHSDeriv(self, freq, src, v, adjoint=False):
"""
Derivative of the right hand side with respect to the model
Derivative of the right hand side with respect to the model
:param float freq: frequency
:param SimPEG.EM.FDEM.Src src: FDEM source
@@ -279,14 +279,14 @@ class Problem_e(BaseFDEMProblem):
C = self.mesh.edgeCurl
MfMui = self.MfMui
S_mDeriv, S_eDeriv = src.evalDeriv(self, adjoint=adjoint)
s_mDeriv, s_eDeriv = src.evalDeriv(self, adjoint=adjoint)
if adjoint:
dRHS = MfMui * (C * v)
return S_mDeriv(dRHS) - 1j * omega(freq) * S_eDeriv(v)
return s_mDeriv(dRHS) - 1j * omega(freq) * s_eDeriv(v)
else:
return C.T * (MfMui * S_mDeriv(v)) -1j * omega(freq) * S_eDeriv(v)
return C.T * (MfMui * s_mDeriv(v)) -1j * omega(freq) * s_eDeriv(v)
class Problem_b(BaseFDEMProblem):
@@ -347,12 +347,12 @@ class Problem_b(BaseFDEMProblem):
.. math ::
\\frac{\mathbf{A}(\mathbf{m}) \mathbf{v}}{d \mathbf{m}} = \mathbf{C} \\frac{\mathbf{M^e_{\sigma}} \mathbf{v}}{d\mathbf{m}}
:param float freq: frequency
:param numpy.ndarray u: solution vector (nF,)
:param float freq: frequency
:param numpy.ndarray u: solution vector (nF,)
:param numpy.ndarray v: vector to take prodct with (nP,) or (nD,) for adjoint
:param bool adjoint: adjoint?
:rtype: numpy.ndarray
:return: derivative of the system matrix times a vector (nP,) or adjoint (nD,)
:return: derivative of the system matrix times a vector (nP,) or adjoint (nD,)
"""
MfMui = self.MfMui
@@ -374,21 +374,21 @@ class Problem_b(BaseFDEMProblem):
def getRHS(self, freq):
"""
Right hand side for the system
Right hand side for the system
.. math ::
\mathbf{RHS} = \mathbf{s_m} + \mathbf{M^e_{\sigma}}^{-1}\mathbf{s_e}
:param float freq: Frequency
:rtype: numpy.ndarray
:rtype: numpy.ndarray
:return: RHS (nE, nSrc)
"""
S_m, S_e = self.getSourceTerm(freq)
s_m, s_e = self.getSourceTerm(freq)
C = self.mesh.edgeCurl
MeSigmaI = self.MeSigmaI
RHS = S_m + C * ( MeSigmaI * S_e )
RHS = s_m + C * ( MeSigmaI * s_e )
if self._makeASymmetric is True:
MfMui = self.MfMui
@@ -409,21 +409,21 @@ class Problem_b(BaseFDEMProblem):
"""
C = self.mesh.edgeCurl
S_m, S_e = src.eval(self)
s_m, s_e = src.eval(self)
MfMui = self.MfMui
if self._makeASymmetric and adjoint:
v = self.MfMui * v
MeSigmaIDeriv = self.MeSigmaIDeriv(S_e)
S_mDeriv, S_eDeriv = src.evalDeriv(self, adjoint=adjoint)
MeSigmaIDeriv = self.MeSigmaIDeriv(s_e)
s_mDeriv, s_eDeriv = src.evalDeriv(self, adjoint=adjoint)
if not adjoint:
RHSderiv = C * (MeSigmaIDeriv * v)
SrcDeriv = S_mDeriv(v) + C * (self.MeSigmaI * S_eDeriv(v))
SrcDeriv = s_mDeriv(v) + C * (self.MeSigmaI * s_eDeriv(v))
elif adjoint:
RHSderiv = MeSigmaIDeriv.T * (C.T * v)
SrcDeriv = S_mDeriv(v) + self.MeSigmaI.T * (C.T * S_eDeriv(v))
SrcDeriv = s_mDeriv(v) + self.MeSigmaI.T * (C.T * s_eDeriv(v))
if self._makeASymmetric is True and not adjoint:
return MfMui.T * (SrcDeriv + RHSderiv)
@@ -499,12 +499,12 @@ class Problem_j(BaseFDEMProblem):
\\frac{\mathbf{A(\sigma)} \mathbf{v}}{d \mathbf{m}} = \mathbf{C} \mathbf{M^e_{mu^{-1}}} \mathbf{C^{\\top}} \\frac{d \mathbf{M^f_{\sigma^{-1}}}\mathbf{v} }{d \mathbf{m}}
:param float freq: frequency
:param numpy.ndarray u: solution vector (nF,)
:param float freq: frequency
:param numpy.ndarray u: solution vector (nF,)
:param numpy.ndarray v: vector to take prodct with (nP,) or (nD,) for adjoint
:param bool adjoint: adjoint?
:rtype: numpy.ndarray
:return: derivative of the system matrix times a vector (nP,) or adjoint (nD,)
:return: derivative of the system matrix times a vector (nP,) or adjoint (nD,)
"""
MeMuI = self.MeMuI
@@ -524,7 +524,7 @@ class Problem_j(BaseFDEMProblem):
def getRHS(self, freq):
"""
Right hand side for the system
Right hand side for the system
.. math ::
@@ -535,11 +535,11 @@ class Problem_j(BaseFDEMProblem):
:return: RHS
"""
S_m, S_e = self.getSourceTerm(freq)
s_m, s_e = self.getSourceTerm(freq)
C = self.mesh.edgeCurl
MeMuI = self.MeMuI
RHS = C * (MeMuI * S_m) - 1j * omega(freq) * S_e
RHS = C * (MeMuI * s_m) - 1j * omega(freq) * s_e
if self._makeASymmetric is True:
MfRho = self.MfRho
return MfRho.T*RHS
@@ -548,7 +548,7 @@ class Problem_j(BaseFDEMProblem):
def getRHSDeriv(self, freq, src, v, adjoint=False):
"""
Derivative of the right hand side with respect to the model
Derivative of the right hand side with respect to the model
:param float freq: frequency
:param SimPEG.EM.FDEM.Src src: FDEM source
@@ -560,16 +560,16 @@ class Problem_j(BaseFDEMProblem):
C = self.mesh.edgeCurl
MeMuI = self.MeMuI
S_mDeriv, S_eDeriv = src.evalDeriv(self, adjoint=adjoint)
s_mDeriv, s_eDeriv = src.evalDeriv(self, adjoint=adjoint)
if adjoint:
if self._makeASymmetric:
MfRho = self.MfRho
v = MfRho*v
return S_mDeriv(MeMuI.T * (C.T * v)) - 1j * omega(freq) * S_eDeriv(v)
return s_mDeriv(MeMuI.T * (C.T * v)) - 1j * omega(freq) * s_eDeriv(v)
else:
RHSDeriv = C * (MeMuI * S_mDeriv(v)) - 1j * omega(freq) * S_eDeriv(v)
RHSDeriv = C * (MeMuI * s_mDeriv(v)) - 1j * omega(freq) * s_eDeriv(v)
if self._makeASymmetric:
MfRho = self.MfRho
@@ -630,12 +630,12 @@ class Problem_h(BaseFDEMProblem):
.. math::
\\frac{\mathbf{A}(\mathbf{m}) \mathbf{v}}{d \mathbf{m}} = \mathbf{C}^{\\top}\\frac{d \mathbf{M^f_{\\rho}}\mathbf{v} }{d\mathbf{m}}
:param float freq: frequency
:param numpy.ndarray u: solution vector (nE,)
:param float freq: frequency
:param numpy.ndarray u: solution vector (nE,)
:param numpy.ndarray v: vector to take prodct with (nP,) or (nD,) for adjoint
:param bool adjoint: adjoint?
:rtype: numpy.ndarray
:return: derivative of the system matrix times a vector (nP,) or adjoint (nD,)
:return: derivative of the system matrix times a vector (nP,) or adjoint (nD,)
"""
MeMu = self.MeMu
@@ -648,27 +648,27 @@ class Problem_h(BaseFDEMProblem):
def getRHS(self, freq):
"""
Right hand side for the system
Right hand side for the system
.. math ::
\mathbf{RHS} = \mathbf{M^e} \mathbf{s_m} + \mathbf{C}^{\\top} \mathbf{M_{\\rho}^f} \mathbf{s_e}
:param float freq: Frequency
:rtype: numpy.ndarray
:rtype: numpy.ndarray
:return: RHS (nE, nSrc)
"""
S_m, S_e = self.getSourceTerm(freq)
s_m, s_e = self.getSourceTerm(freq)
C = self.mesh.edgeCurl
MfRho = self.MfRho
return S_m + C.T * ( MfRho * S_e )
return s_m + C.T * ( MfRho * s_e )
def getRHSDeriv(self, freq, src, v, adjoint=False):
"""
Derivative of the right hand side with respect to the model
Derivative of the right hand side with respect to the model
:param float freq: frequency
:param SimPEG.EM.FDEM.Src src: FDEM source
@@ -678,17 +678,17 @@ class Problem_h(BaseFDEMProblem):
:return: product of rhs deriv with a vector
"""
_, S_e = src.eval(self)
_, s_e = src.eval(self)
C = self.mesh.edgeCurl
MfRho = self.MfRho
MfRhoDeriv = self.MfRhoDeriv(S_e)
MfRhoDeriv = self.MfRhoDeriv(s_e)
if not adjoint:
RHSDeriv = C.T * (MfRhoDeriv * v)
elif adjoint:
RHSDeriv = MfRhoDeriv.T * (C * v)
S_mDeriv, S_eDeriv = src.evalDeriv(self, adjoint=adjoint)
s_mDeriv, s_eDeriv = src.evalDeriv(self, adjoint=adjoint)
return RHSDeriv + S_mDeriv(v) + C.T * (MfRho * S_eDeriv(v))
return RHSDeriv + s_mDeriv(v) + C.T * (MfRho * s_eDeriv(v))
SimPEG/EM/FDEM/FieldsFDEM.py
+127 -127
View File
@@ -8,7 +8,7 @@ from SimPEG.Utils import Zero, Identity, sdiag
class Fields(SimPEG.Problem.Fields):
"""
Fancy Field Storage for a FDEM survey. Only one field type is stored for
each problem, the rest are computed. The fields obejct acts like an array and is indexed by
@@ -34,56 +34,56 @@ class Fields(SimPEG.Problem.Fields):
def _e(self, solution, srcList):
"""
Total electric field is sum of primary and secondary
Total electric field is sum of primary and secondary
:param numpy.ndarray solution: field we solved for
:param list srcList: list of sources
:rtype: numpy.ndarray
:return: total electric field
"""
if getattr(self, '_ePrimary', None) is None or getattr(self, '_eSecondary', None) is None:
if getattr(self, '_ePrimary', None) is None or getattr(self, '_eSecondary', None) is None:
raise NotImplementedError ('Getting e from %s is not implemented' %self.knownFields.keys()[0])
return self._ePrimary(solution,srcList) + self._eSecondary(solution,srcList)
def _b(self, solution, srcList):
"""
Total magnetic flux density is sum of primary and secondary
Total magnetic flux density is sum of primary and secondary
:param numpy.ndarray solution: field we solved for
:param list srcList: list of sources
:rtype: numpy.ndarray
:return: total magnetic flux density
:return: total magnetic flux density
"""
if getattr(self, '_bPrimary', None) is None or getattr(self, '_bSecondary', None) is None:
if getattr(self, '_bPrimary', None) is None or getattr(self, '_bSecondary', None) is None:
raise NotImplementedError ('Getting b from %s is not implemented' %self.knownFields.keys()[0])
return self._bPrimary(solution, srcList) + self._bSecondary(solution, srcList)
def _h(self, solution, srcList):
"""
Total magnetic field is sum of primary and secondary
Total magnetic field is sum of primary and secondary
:param numpy.ndarray solution: field we solved for
:param list srcList: list of sources
:rtype: numpy.ndarray
:return: total magnetic field
"""
if getattr(self, '_hPrimary', None) is None or getattr(self, '_hSecondary', None) is None:
if getattr(self, '_hPrimary', None) is None or getattr(self, '_hSecondary', None) is None:
raise NotImplementedError ('Getting h from %s is not implemented' %self.knownFields.keys()[0])
return self._hPrimary(solution, srcList) + self._hSecondary(solution, srcList)
def _j(self, solution, srcList):
"""
Total current density is sum of primary and secondary
Total current density is sum of primary and secondary
:param numpy.ndarray solution: field we solved for
:param list srcList: list of sources
:rtype: numpy.ndarray
:return: total current density
:return: total current density
"""
if getattr(self, '_jPrimary', None) is None or getattr(self, '_jSecondary', None) is None:
if getattr(self, '_jPrimary', None) is None or getattr(self, '_jSecondary', None) is None:
raise NotImplementedError ('Getting j from %s is not implemented' %self.knownFields.keys()[0])
return self._jPrimary(solution, srcList) + self._jSecondary(solution, srcList)
@@ -99,7 +99,7 @@ class Fields(SimPEG.Problem.Fields):
:rtype: numpy.ndarray
:return: derivative times a vector (or tuple for adjoint)
"""
if getattr(self, '_eDeriv_u', None) is None or getattr(self, '_eDeriv_m', None) is None:
if getattr(self, '_eDeriv_u', None) is None or getattr(self, '_eDeriv_m', None) is None:
raise NotImplementedError ('Getting eDerivs from %s is not implemented' %self.knownFields.keys()[0])
if adjoint:
@@ -117,12 +117,12 @@ class Fields(SimPEG.Problem.Fields):
:rtype: numpy.ndarray
:return: derivative times a vector (or tuple for adjoint)
"""
if getattr(self, '_bDeriv_u', None) is None or getattr(self, '_bDeriv_m', None) is None:
if getattr(self, '_bDeriv_u', None) is None or getattr(self, '_bDeriv_m', None) is None:
raise NotImplementedError ('Getting bDerivs from %s is not implemented' %self.knownFields.keys()[0])
if adjoint:
return self._bDeriv_u(src, v, adjoint), self._bDeriv_m(src, v, adjoint)
return np.array(self._bDeriv_u(src, du_dm_v, adjoint) + self._bDeriv_m(src, v, adjoint), dtype = complex)
return np.array(self._bDeriv_u(src, du_dm_v, adjoint) + self._bDeriv_m(src, v, adjoint), dtype = complex)
def _hDeriv(self, src, du_dm_v, v, adjoint = False):
"""
@@ -135,10 +135,10 @@ class Fields(SimPEG.Problem.Fields):
:rtype: numpy.ndarray
:return: derivative times a vector (or tuple for adjoint)
"""
if getattr(self, '_hDeriv_u', None) is None or getattr(self, '_hDeriv_m', None) is None:
if getattr(self, '_hDeriv_u', None) is None or getattr(self, '_hDeriv_m', None) is None:
raise NotImplementedError ('Getting hDerivs from %s is not implemented' %self.knownFields.keys()[0])
if adjoint:
if adjoint:
return self._hDeriv_u(src, v, adjoint), self._hDeriv_m(src, v, adjoint)
return np.array(self._hDeriv_u(src, du_dm_v, adjoint) + self._hDeriv_m(src, v, adjoint), dtype = complex)
@@ -153,7 +153,7 @@ class Fields(SimPEG.Problem.Fields):
:rtype: numpy.ndarray
:return: derivative times a vector (or tuple for adjoint)
"""
if getattr(self, '_jDeriv_u', None) is None or getattr(self, '_jDeriv_m', None) is None:
if getattr(self, '_jDeriv_u', None) is None or getattr(self, '_jDeriv_m', None) is None:
raise NotImplementedError ('Getting jDerivs from %s is not implemented' %self.knownFields.keys()[0])
if adjoint:
@@ -162,10 +162,10 @@ class Fields(SimPEG.Problem.Fields):
class Fields_e(Fields):
"""
Fields object for Problem_e.
Fields object for Problem_e.
:param Mesh mesh: mesh
:param Survey survey: survey
:param Survey survey: survey
"""
knownFields = {'eSolution':'E'}
@@ -233,9 +233,9 @@ class Fields_e(Fields):
def _eDeriv_u(self, src, v, adjoint = False):
"""
Partial derivative of the total electric field with respect to the thing we
Partial derivative of the total electric field with respect to the thing we
solved for.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -247,8 +247,8 @@ class Fields_e(Fields):
def _eDeriv_m(self, src, v, adjoint = False):
"""
Partial derivative of the total electric field with respect to the inversion model. Here, we assume that the primary does not depend on the model. Note that this also includes derivative contributions from the sources.
Partial derivative of the total electric field with respect to the inversion model. Here, we assume that the primary does not depend on the model. Note that this also includes derivative contributions from the sources.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -289,14 +289,14 @@ class Fields_e(Fields):
b = (C * eSolution)
for i, src in enumerate(srcList):
b[:,i] *= - 1./(1j*omega(src.freq))
S_m, _ = src.eval(self.prob)
b[:,i] = b[:,i]+ 1./(1j*omega(src.freq)) * S_m
s_m, _ = src.eval(self.prob)
b[:,i] = b[:,i]+ 1./(1j*omega(src.freq)) * s_m
return b
def _bDeriv_u(self, src, du_dm_v, adjoint = False):
"""
Derivative of the magnetic flux density with respect to the thing we solved for
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -312,8 +312,8 @@ class Fields_e(Fields):
def _bDeriv_m(self, src, v, adjoint = False):
"""
Derivative of the magnetic flux density with respect to the inversion model.
Derivative of the magnetic flux density with respect to the inversion model.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -321,8 +321,8 @@ class Fields_e(Fields):
:return: product of the magnetic flux density derivative with respect to the inversion model with a vector
"""
S_mDeriv, _ = src.evalDeriv(self.prob, v, adjoint)
return 1./(1j * omega(src.freq)) * S_mDeriv
s_mDeriv, _ = src.evalDeriv(self.prob, v, adjoint)
return 1./(1j * omega(src.freq)) * s_mDeriv
def _j(self, eSolution, srcList):
"""
@@ -341,7 +341,7 @@ class Fields_e(Fields):
def _jDeriv_u(self, src, du_dm_v, adjoint = False):
"""
Derivative of the current density with respect to the thing we solved for
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -351,15 +351,15 @@ class Fields_e(Fields):
n = int(self._aveE2CCV.shape[0] / self._nC) # number of components (instead of checking if cyl or not)
VI = sdiag(np.kron(np.ones(n), 1./self.prob.mesh.vol))
if adjoint:
if adjoint:
return self._eDeriv_u(src, self._MeSigma.T * (self._aveE2CCV.T * (VI.T * du_dm_v) ), adjoint = adjoint)
return VI * (self._aveE2CCV * (self._MeSigma * (self._eDeriv_u(src, du_dm_v, adjoint=adjoint) ) ) )
def _jDeriv_m(self, src, v, adjoint = False):
"""
Derivative of the current density with respect to the inversion model.
Derivative of the current density with respect to the inversion model.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -373,7 +373,7 @@ class Fields_e(Fields):
if adjoint:
return self._MeSigmaDeriv(e).T * (self._aveE2CCV.T * (VI.T * v)) + self._eDeriv_m(src, self._aveE2CCV.T * (VI.T * v), adjoint=adjoint)
return VI * (self._aveE2CCV * ( self._eDeriv_m(src, v, adjoint=adjoint) + self._MeSigmaDeriv(e) * v))
def _h(self, eSolution, srcList):
@@ -393,7 +393,7 @@ class Fields_e(Fields):
def _hDeriv_u(self, src, du_dm_v, adjoint = False):
"""
Derivative of the magnetic field with respect to the thing we solved for
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -409,8 +409,8 @@ class Fields_e(Fields):
def _hDeriv_m(self, src, v, adjoint = False):
"""
Derivative of the magnetic field with respect to the inversion model.
Derivative of the magnetic field with respect to the inversion model.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -428,10 +428,10 @@ class Fields_e(Fields):
class Fields_b(Fields):
"""
Fields object for Problem_b.
Fields object for Problem_b.
:param Mesh mesh: mesh
:param Survey survey: survey
:param Survey survey: survey
"""
knownFields = {'bSolution':'F'}
@@ -506,9 +506,9 @@ class Fields_b(Fields):
def _bDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Partial derivative of the total magnetic flux density with respect to the thing we
Partial derivative of the total magnetic flux density with respect to the thing we
solved for.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -520,8 +520,8 @@ class Fields_b(Fields):
def _bDeriv_m(self, src, v, adjoint=False):
"""
Partial derivative of the total magnetic flux density with respect to the inversion model. Here, we assume that the primary does not depend on the model. Note that this also includes derivative contributions from the sources.
Partial derivative of the total magnetic flux density with respect to the inversion model. Here, we assume that the primary does not depend on the model. Note that this also includes derivative contributions from the sources.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -560,15 +560,15 @@ class Fields_b(Fields):
e = ( self._edgeCurl.T * ( self._MfMui * bSolution))
for i,src in enumerate(srcList):
_,S_e = src.eval(self.prob)
e[:,i] = e[:,i] + - S_e
_,s_e = src.eval(self.prob)
e[:,i] = e[:,i] + - s_e
return self._MeSigmaI * e
def _eDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Derivative of the electric field with respect to the thing we solved for
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -583,8 +583,8 @@ class Fields_b(Fields):
def _eDeriv_m(self, src, v, adjoint=False):
"""
Derivative of the electric field with respect to the inversion model
Derivative of the electric field with respect to the inversion model
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -593,15 +593,15 @@ class Fields_b(Fields):
"""
bSolution = Utils.mkvc(self[src, 'bSolution'])
_,S_e = src.eval(self.prob)
_,s_e = src.eval(self.prob)
w = -S_e + self._edgeCurl.T * (self._MfMui * bSolution)
_, S_eDeriv = src.evalDeriv(self.prob, v, adjoint)
w = -s_e + self._edgeCurl.T * (self._MfMui * bSolution)
_, s_eDeriv = src.evalDeriv(self.prob, v, adjoint)
if adjoint:
return self._MeSigmaIDeriv(w).T * v - self._MeSigmaI.T * S_eDeriv
return self._MeSigmaIDeriv(w) * v - self._MeSigmaI * S_eDeriv
return self._MeSigmaIDeriv(w).T * v - self._MeSigmaI.T * s_eDeriv
return self._MeSigmaIDeriv(w) * v - self._MeSigmaI * s_eDeriv
def _j(self, bSolution, srcList):
"""
@@ -617,13 +617,13 @@ class Fields_b(Fields):
VI = sdiag(np.kron(np.ones(n), 1./self.prob.mesh.vol))
return VI * (self._aveE2CCV * ( self._MeSigma * self._e(bSolution,srcList ) ) )
def _jDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Partial derivative of the current density with respect to the thing we
Partial derivative of the current density with respect to the thing we
solved for.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -639,8 +639,8 @@ class Fields_b(Fields):
def _jDeriv_m(self, src, v, adjoint=False):
"""
Derivative of the current density with respect to the inversion model
Derivative of the current density with respect to the inversion model
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -664,9 +664,9 @@ class Fields_b(Fields):
def _hDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Partial derivative of the magnetic field with respect to the thing we
Partial derivative of the magnetic field with respect to the thing we
solved for.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -682,8 +682,8 @@ class Fields_b(Fields):
def _hDeriv_m(self, src, v, adjoint=False):
"""
Derivative of the magnetic field with respect to the inversion model
Derivative of the magnetic field with respect to the inversion model
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -695,10 +695,10 @@ class Fields_b(Fields):
class Fields_j(Fields):
"""
Fields object for Problem_j.
Fields object for Problem_j.
:param Mesh mesh: mesh
:param Survey survey: survey
:param Survey survey: survey
"""
knownFields = {'jSolution':'F'}
@@ -769,12 +769,12 @@ class Fields_j(Fields):
def _j(self, jSolution, srcList):
"""
Total current density is sum of primary and secondary
Total current density is sum of primary and secondary
:param numpy.ndarray jSolution: field we solved for
:param list srcList: list of sources
:rtype: numpy.ndarray
:return: total current density
:return: total current density
"""
return self._jPrimary(jSolution, srcList) + self._jSecondary(jSolution, srcList)
@@ -782,9 +782,9 @@ class Fields_j(Fields):
def _jDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Partial derivative of the total current density with respect to the thing we
Partial derivative of the total current density with respect to the thing we
solved for.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -797,8 +797,8 @@ class Fields_j(Fields):
def _jDeriv_m(self, src, v, adjoint=False):
"""
Partial derivative of the total current density with respect to the inversion model. Here, we assume that the primary does not depend on the model. Note that this also includes derivative contributions from the sources.
Partial derivative of the total current density with respect to the inversion model. Here, we assume that the primary does not depend on the model. Note that this also includes derivative contributions from the sources.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -837,15 +837,15 @@ class Fields_j(Fields):
h = (self._edgeCurl.T * (self._MfRho * jSolution) )
for i, src in enumerate(srcList):
h[:,i] *= -1./(1j*omega(src.freq))
S_m,_ = src.eval(self.prob)
h[:,i] = h[:,i] + 1./(1j*omega(src.freq)) * (S_m)
s_m,_ = src.eval(self.prob)
h[:,i] = h[:,i] + 1./(1j*omega(src.freq)) * (s_m)
return self._MeMuI * h
def _hDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Derivative of the magnetic field with respect to the thing we solved for
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -856,13 +856,13 @@ class Fields_j(Fields):
if adjoint:
return -1./(1j*omega(src.freq)) * self._MfRho.T * (self._edgeCurl * ( self._MeMuI.T * du_dm_v))
return -1./(1j*omega(src.freq)) * self._MeMuI * (self._edgeCurl.T * (self._MfRho * du_dm_v) )
def _hDeriv_m(self, src, v, adjoint=False):
"""
Derivative of the magnetic field with respect to the inversion model
Derivative of the magnetic field with respect to the inversion model
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -875,19 +875,19 @@ class Fields_j(Fields):
C = self._edgeCurl
MfRho = self._MfRho
MfRhoDeriv = self._MfRhoDeriv
S_mDeriv,_ = src.evalDeriv(self.prob, adjoint = adjoint)
s_mDeriv,_ = src.evalDeriv(self.prob, adjoint = adjoint)
if not adjoint:
hDeriv_m = -1./(1j*omega(src.freq)) * MeMuI * (C.T * (MfRhoDeriv(jSolution)*v ) )
S_mDeriv = S_mDeriv(v)
hDeriv_m = hDeriv_m + 1./(1j*omega(src.freq)) * MeMuI * ( S_mDeriv)
s_mDeriv = s_mDeriv(v)
hDeriv_m = hDeriv_m + 1./(1j*omega(src.freq)) * MeMuI * ( s_mDeriv)
elif adjoint:
hDeriv_m = -1./(1j*omega(src.freq)) * MfRhoDeriv(jSolution).T * ( C * (MeMuI.T * v ) )
S_mDeriv = S_mDeriv(MeMuI.T * v)
hDeriv_m = hDeriv_m + 1./(1j*omega(src.freq)) * S_mDeriv
s_mDeriv = s_mDeriv(MeMuI.T * v)
hDeriv_m = hDeriv_m + 1./(1j*omega(src.freq)) * s_mDeriv
return hDeriv_m
def _e(self, jSolution, srcList):
@@ -901,12 +901,12 @@ class Fields_j(Fields):
"""
n = int(self._aveF2CCV.shape[0] / self._nC) # number of components
VI = sdiag(np.kron(np.ones(n), 1./self.prob.mesh.vol))
return VI * (self._aveF2CCV * (self._MfRho * self._j(jSolution, srcList)))
return VI * (self._aveF2CCV * (self._MfRho * self._j(jSolution, srcList)))
def _eDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Derivative of the electric field with respect to the thing we solved for
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -921,8 +921,8 @@ class Fields_j(Fields):
def _eDeriv_m(self, src, v, adjoint=False):
"""
Derivative of the electric field with respect to the inversion model
Derivative of the electric field with respect to the inversion model
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -943,17 +943,17 @@ class Fields_j(Fields):
:param numpy.ndarray hSolution: field we solved for
:param list srcList: list of sources
:rtype: numpy.ndarray
:return: secondary magnetic flux density
:return: secondary magnetic flux density
"""
n = int(self._aveE2CCV.shape[0] / self._nC) # number of components
VI = sdiag(np.kron(np.ones(n), 1./self.prob.mesh.vol))
return VI * (self._aveE2CCV * ( self._MeMu * self._h(jSolution,srcList)) )
return VI * (self._aveE2CCV * ( self._MeMu * self._h(jSolution,srcList)) )
def _bDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Derivative of the magnetic flux density with respect to the thing we solved for
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -969,8 +969,8 @@ class Fields_j(Fields):
def _bDeriv_m(self, src, v, adjoint=False):
"""
Derivative of the magnetic flux density with respect to the inversion model
Derivative of the magnetic flux density with respect to the inversion model
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -980,20 +980,20 @@ class Fields_j(Fields):
jSolution = self[src,'jSolution']
n = int(self._aveE2CCV.shape[0] / self._nC) # number of components
VI = sdiag(np.kron(np.ones(n), 1./self.prob.mesh.vol))
S_mDeriv,_ = src.evalDeriv(self.prob, adjoint = adjoint)
s_mDeriv,_ = src.evalDeriv(self.prob, adjoint = adjoint)
if adjoint:
v = self._aveE2CCV.T * ( VI.T * v)
return 1./(1j * omega(src.freq)) * ( S_mDeriv(v) - self._MfRhoDeriv(jSolution).T * (self._edgeCurl * v ))
return 1./(1j * omega(src.freq)) * VI * (self._aveE2CCV * ( S_mDeriv(v) - self._edgeCurl.T * ( self._MfRhoDeriv(jSolution) * v ) ) )
return 1./(1j * omega(src.freq)) * ( s_mDeriv(v) - self._MfRhoDeriv(jSolution).T * (self._edgeCurl * v ))
return 1./(1j * omega(src.freq)) * VI * (self._aveE2CCV * ( s_mDeriv(v) - self._edgeCurl.T * ( self._MfRhoDeriv(jSolution) * v ) ) )
class Fields_h(Fields):
"""
Fields object for Problem_h.
Fields object for Problem_h.
:param Mesh mesh: mesh
:param Survey survey: survey
:param Survey survey: survey
"""
knownFields = {'hSolution':'E'}
@@ -1065,9 +1065,9 @@ class Fields_h(Fields):
def _hDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Partial derivative of the total magnetic field with respect to the thing we
Partial derivative of the total magnetic field with respect to the thing we
solved for.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -1079,8 +1079,8 @@ class Fields_h(Fields):
def _hDeriv_m(self, src, v, adjoint=False):
"""
Partial derivative of the total magnetic field with respect to the inversion model. Here, we assume that the primary does not depend on the model. Note that this also includes derivative contributions from the sources.
Partial derivative of the total magnetic field with respect to the inversion model. Here, we assume that the primary does not depend on the model. Note that this also includes derivative contributions from the sources.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -1119,14 +1119,14 @@ class Fields_h(Fields):
j = self._edgeCurl*hSolution
for i, src in enumerate(srcList):
_,S_e = src.eval(self.prob)
j[:,i] = j[:,i]+ -S_e
_,s_e = src.eval(self.prob)
j[:,i] = j[:,i]+ -s_e
return j
def _jDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Derivative of the current density with respect to the thing we solved for
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -1142,8 +1142,8 @@ class Fields_h(Fields):
def _jDeriv_m(self, src, v, adjoint=False):
"""
Derivative of the current density with respect to the inversion model.
Derivative of the current density with respect to the inversion model.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -1151,9 +1151,9 @@ class Fields_h(Fields):
:return: product of the current density derivative with respect to the inversion model with a vector
"""
_,S_eDeriv = src.evalDeriv(self.prob, v, adjoint)
return -S_eDeriv
_,s_eDeriv = src.evalDeriv(self.prob, v, adjoint)
return -s_eDeriv
def _e(self, hSolution, srcList):
"""
Electric field from hSolution
@@ -1165,12 +1165,12 @@ class Fields_h(Fields):
"""
n = int(self._aveF2CCV.shape[0] / self._nC) #number of components
VI = sdiag(np.kron(np.ones(n), 1./self.prob.mesh.vol))
return VI * (self._aveF2CCV * (self._MfRho * self._j(hSolution, srcList)))
return VI * (self._aveF2CCV * (self._MfRho * self._j(hSolution, srcList)))
def _eDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Derivative of the electric field with respect to the thing we solved for
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
@@ -1181,12 +1181,12 @@ class Fields_h(Fields):
VI = sdiag(np.kron(np.ones(n), 1./self.prob.mesh.vol))
if adjoint:
return self._edgeCurl.T * ( self._MfRho.T * ( self._aveF2CCV.T * ( VI.T * du_dm_v ) ) )
return VI * (self._aveF2CCV * (self._MfRho * self._edgeCurl * du_dm_v ))
return VI * (self._aveF2CCV * (self._MfRho * self._edgeCurl * du_dm_v ))
def _eDeriv_m(self, src, v, adjoint=False):
"""
Derivative of the electric field with respect to the inversion model.
Derivative of the electric field with respect to the inversion model.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
@@ -1196,7 +1196,7 @@ class Fields_h(Fields):
hSolution = Utils.mkvc(self[src,'hSolution'])
n = int(self._aveF2CCV.shape[0] / self._nC) #number of components
VI = sdiag(np.kron(np.ones(n), 1./self.prob.mesh.vol))
if adjoint:
if adjoint:
return ( self._MfRhoDeriv(self._edgeCurl * hSolution).T * ( self._aveF2CCV.T * (VI.T * v) ) )
return VI * (self._aveF2CCV * (self._MfRhoDeriv(self._edgeCurl * hSolution) * v ))
@@ -1207,10 +1207,10 @@ class Fields_h(Fields):
:param numpy.ndarray hSolution: field we solved for
:param list srcList: list of sources
:rtype: numpy.ndarray
:return: magnetic flux density
:return: magnetic flux density
"""
h = self._h(hSolution, srcList)
n = int(self._aveE2CCV.shape[0] / self._nC) #number of components
n = int(self._aveE2CCV.shape[0] / self._nC) #number of components
VI = sdiag(np.kron(np.ones(n), 1./self.prob.mesh.vol))
return VI * (self._aveE2CCV * (self._MeMu * h))
@@ -1218,14 +1218,14 @@ class Fields_h(Fields):
def _bDeriv_u(self, src, du_dm_v, adjoint=False):
"""
Derivative of the magnetic flux density with respect to the thing we solved for
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray du_dm_v: vector to take product with
:param bool adjoint: adjoint?
:rtype: numpy.ndarray
:return: product of the derivative of the magnetic flux density with respect to the field we solved for with a vector
"""
n = int(self._aveE2CCV.shape[0] / self._nC) #number of components
n = int(self._aveE2CCV.shape[0] / self._nC) #number of components
VI = sdiag(np.kron(np.ones(n), 1./self.prob.mesh.vol))
if adjoint:
return self._MeMu.T * (self._aveE2CCV.T * ( VI.T * du_dm_v ))
@@ -1233,8 +1233,8 @@ class Fields_h(Fields):
def _bDeriv_m(self, src, v, adjoint=False):
"""
Derivative of the magnetic flux density with respect to the inversion model.
Derivative of the magnetic flux density with respect to the inversion model.
:param SimPEG.EM.FDEM.Src src: source
:param numpy.ndarray v: vector to take product with
:param bool adjoint: adjoint?
SimPEG/EM/FDEM/SrcFDEM.py
+48 -48
View File
@@ -15,22 +15,22 @@ class BaseSrc(Survey.BaseSrc):
def eval(self, prob):
"""
Evaluate the source terms.
- :math:`S_m` : magnetic source term
- :math:`S_e` : electric source term
- :math:`s_m` : magnetic source term
- :math:`s_e` : electric source term
:param Problem prob: FDEM Problem
:rtype: (numpy.ndarray, numpy.ndarray)
:return: tuple with magnetic source term and electric source term
"""
S_m = self.S_m(prob)
S_e = self.S_e(prob)
return S_m, S_e
s_m = self.s_m(prob)
s_e = self.s_e(prob)
return s_m, s_e
def evalDeriv(self, prob, v=None, adjoint=False):
"""
Derivatives of the source terms with respect to the inversion model
- :code:`S_mDeriv` : derivative of the magnetic source term
- :code:`S_eDeriv` : derivative of the electric source term
- :code:`s_mDeriv` : derivative of the magnetic source term
- :code:`s_eDeriv` : derivative of the electric source term
:param Problem prob: FDEM Problem
:param numpy.ndarray v: vector to take product with
@@ -39,9 +39,9 @@ class BaseSrc(Survey.BaseSrc):
:return: tuple with magnetic source term and electric source term derivatives times a vector
"""
if v is not None:
return self.S_mDeriv(prob, v, adjoint), self.S_eDeriv(prob, v, adjoint)
return self.s_mDeriv(prob, v, adjoint), self.s_eDeriv(prob, v, adjoint)
else:
return lambda v: self.S_mDeriv(prob, v, adjoint), lambda v: self.S_eDeriv(prob, v, adjoint)
return lambda v: self.s_mDeriv(prob, v, adjoint), lambda v: self.s_eDeriv(prob, v, adjoint)
def bPrimary(self, prob):
"""
@@ -83,7 +83,7 @@ class BaseSrc(Survey.BaseSrc):
"""
return Zero()
def S_m(self, prob):
def s_m(self, prob):
"""
Magnetic source term
@@ -93,7 +93,7 @@ class BaseSrc(Survey.BaseSrc):
"""
return Zero()
def S_e(self, prob):
def s_e(self, prob):
"""
Electric source term
@@ -103,7 +103,7 @@ class BaseSrc(Survey.BaseSrc):
"""
return Zero()
def S_mDeriv(self, prob, v, adjoint = False):
def s_mDeriv(self, prob, v, adjoint = False):
"""
Derivative of magnetic source term with respect to the inversion model
@@ -116,7 +116,7 @@ class BaseSrc(Survey.BaseSrc):
return Zero()
def S_eDeriv(self, prob, v, adjoint = False):
def s_eDeriv(self, prob, v, adjoint = False):
"""
Derivative of electric source term with respect to the inversion model
@@ -131,22 +131,22 @@ class BaseSrc(Survey.BaseSrc):
class RawVec_e(BaseSrc):
"""
RawVec electric source. It is defined by the user provided vector S_e
RawVec electric source. It is defined by the user provided vector s_e
:param list rxList: receiver list
:param float freq: frequency
:param numpy.array S_e: electric source term
:param numpy.array s_e: electric source term
:param bool integrate: Integrate the source term (multiply by Me) [True]
"""
def __init__(self, rxList, freq, S_e, integrate=True): #, ePrimary=None, bPrimary=None, hPrimary=None, jPrimary=None):
self._S_e = np.array(S_e, dtype=complex)
def __init__(self, rxList, freq, s_e, integrate=True): #, ePrimary=None, bPrimary=None, hPrimary=None, jPrimary=None):
self._s_e = np.array(s_e, dtype=complex)
self.freq = float(freq)
self.integrate = integrate
BaseSrc.__init__(self, rxList)
def S_e(self, prob):
def s_e(self, prob):
"""
Electric source term
@@ -155,28 +155,28 @@ class RawVec_e(BaseSrc):
:return: electric source term on mesh
"""
if prob._formulation is 'EB' and self.integrate is True:
return prob.Me * self._S_e
return self._S_e
return prob.Me * self._s_e
return self._s_e
class RawVec_m(BaseSrc):
"""
RawVec magnetic source. It is defined by the user provided vector S_m
RawVec magnetic source. It is defined by the user provided vector s_m
:param float freq: frequency
:param rxList: receiver list
:param numpy.array S_m: magnetic source term
:param numpy.array s_m: magnetic source term
:param bool integrate: Integrate the source term (multiply by Me) [True]
"""
def __init__(self, rxList, freq, S_m, integrate=True): #ePrimary=Zero(), bPrimary=Zero(), hPrimary=Zero(), jPrimary=Zero()):
self._S_m = np.array(S_m, dtype=complex)
def __init__(self, rxList, freq, s_m, integrate=True): #ePrimary=Zero(), bPrimary=Zero(), hPrimary=Zero(), jPrimary=Zero()):
self._s_m = np.array(s_m, dtype=complex)
self.freq = float(freq)
self.integrate = integrate
BaseSrc.__init__(self, rxList)
def S_m(self, prob):
def s_m(self, prob):
"""
Magnetic source term
@@ -185,28 +185,28 @@ class RawVec_m(BaseSrc):
:return: magnetic source term on mesh
"""
if prob._formulation is 'HJ' and self.integrate is True:
return prob.Me * self._S_m
return self._S_m
return prob.Me * self._s_m
return self._s_m
class RawVec(BaseSrc):
"""
RawVec source. It is defined by the user provided vectors S_m, S_e
RawVec source. It is defined by the user provided vectors s_m, s_e
:param rxList: receiver list
:param float freq: frequency
:param numpy.array S_m: magnetic source term
:param numpy.array S_e: electric source term
:param numpy.array s_m: magnetic source term
:param numpy.array s_e: electric source term
:param bool integrate: Integrate the source term (multiply by Me) [True]
"""
def __init__(self, rxList, freq, S_m, S_e, integrate=True):
self._S_m = np.array(S_m, dtype=complex)
self._S_e = np.array(S_e, dtype=complex)
def __init__(self, rxList, freq, s_m, s_e, integrate=True):
self._s_m = np.array(s_m, dtype=complex)
self._s_e = np.array(s_e, dtype=complex)
self.freq = float(freq)
self.integrate = integrate
BaseSrc.__init__(self, rxList)
def S_m(self, prob):
def s_m(self, prob):
"""
Magnetic source term
@@ -215,10 +215,10 @@ class RawVec(BaseSrc):
:return: magnetic source term on mesh
"""
if prob._formulation is 'HJ' and self.integrate is True:
return prob.Me * self._S_m
return self._S_m
return prob.Me * self._s_m
return self._s_m
def S_e(self, prob):
def s_e(self, prob):
"""
Electric source term
@@ -227,8 +227,8 @@ class RawVec(BaseSrc):
:return: electric source term on mesh
"""
if prob._formulation is 'EB' and self.integrate is True:
return prob.Me * self._S_e
return self._S_e
return prob.Me * self._s_e
return self._s_e
class MagDipole(BaseSrc):
@@ -335,9 +335,9 @@ class MagDipole(BaseSrc):
:return: primary magnetic field
"""
b = self.bPrimary(prob)
return 1./self.mu * b
return 1./self.mu * b
def S_m(self, prob):
def s_m(self, prob):
"""
The magnetic source term
@@ -348,10 +348,10 @@ class MagDipole(BaseSrc):
b_p = self.bPrimary(prob)
if prob._formulation is 'HJ':
b_p = prob.Me * b_p
b_p = prob.Me * b_p
return -1j*omega(self.freq)*b_p
def S_e(self, prob):
def s_e(self, prob):
"""
The electric source term
@@ -453,7 +453,7 @@ class MagDipole_Bfield(BaseSrc):
b = self.bPrimary(prob)
return 1/self.mu * b
def S_m(self, prob):
def s_m(self, prob):
"""
The magnetic source term
@@ -466,7 +466,7 @@ class MagDipole_Bfield(BaseSrc):
b = prob.Me * b
return -1j*omega(self.freq)*b
def S_e(self, prob):
def s_e(self, prob):
"""
The electric source term
@@ -565,7 +565,7 @@ class CircularLoop(BaseSrc):
b = self.bPrimary(prob)
return 1./self.mu*b
def S_m(self, prob):
def s_m(self, prob):
"""
The magnetic source term
@@ -578,7 +578,7 @@ class CircularLoop(BaseSrc):
b = prob.Me * b
return -1j*omega(self.freq)*b
def S_e(self, prob):
def s_e(self, prob):
"""
The electric source term
@@ -604,6 +604,6 @@ class CircularLoop(BaseSrc):
return -C.T * (MMui_s * self.bPrimary(prob))
SimPEG/EM/FDEM/SurveyFDEM.py
+14 -29
View File
@@ -1,5 +1,6 @@
import SimPEG
from SimPEG.EM.Utils import *
from SimPEG.EM.Base import BaseEMSurvey
from scipy.constants import mu_0
from SimPEG.Utils import Zero, Identity
import SrcFDEM as Src
@@ -66,7 +67,7 @@ class Rx(SimPEG.Survey.BaseRx):
"""Grid Location projection (e.g. Ex Fy ...)"""
return u._GLoc(self.rxType[0]) + self.knownRxTypes[self.rxType][1]
def eval(self, src, mesh, u):
def eval(self, src, mesh, f):
"""
Project fields to recievers to get data.
@@ -79,27 +80,27 @@ class Rx(SimPEG.Survey.BaseRx):
# projGLoc = u._GLoc(self.knownRxTypes[self.rxType][0])
# projGLoc += self.knownRxTypes[self.rxType][1]
P = self.getP(mesh, self.projGLoc(u))
u_part_complex = u[src, self.projField]
P = self.getP(mesh, self.projGLoc(f))
f_part_complex = f[src, self.projField]
# get the real or imag component
real_or_imag = self.projComp
u_part = getattr(u_part_complex, real_or_imag)
return P*u_part
f_part = getattr(f_part_complex, real_or_imag)
def evalDeriv(self, src, mesh, u, v, adjoint=False):
return P*f_part
def evalDeriv(self, src, mesh, f, v, adjoint=False):
"""
Derivative of projected fields with respect to the inversion model times a vector.
:param Source src: FDEM source
:param Mesh mesh: mesh used
:param Fields u: fields object
:param Fields f: fields object
:param numpy.ndarray v: vector to multiply
:rtype: numpy.ndarray
:return: fields projected to recievers
"""
P = self.getP(mesh, self.projGLoc(u))
P = self.getP(mesh, self.projGLoc(f))
if not adjoint:
Pv_complex = P * v
@@ -123,7 +124,7 @@ class Rx(SimPEG.Survey.BaseRx):
# Survey
####################################################
class Survey(SimPEG.Survey.BaseSurvey):
class Survey(BaseEMSurvey):
"""
Frequency domain electromagnetic survey
@@ -131,12 +132,12 @@ class Survey(SimPEG.Survey.BaseSurvey):
"""
srcPair = Src.BaseSrc
rxPaair = Rx
rxPair = Rx
def __init__(self, srcList, **kwargs):
# Sort these by frequency
self.srcList = srcList
SimPEG.Survey.BaseSurvey.__init__(self, **kwargs)
BaseEMSurvey.__init__(self, srcList, **kwargs)
_freqDict = {}
for src in srcList:
@@ -171,24 +172,8 @@ class Survey(SimPEG.Survey.BaseSurvey):
Returns the sources associated with a specific frequency.
:param float freq: frequency for which we look up sources
:rtype: dictionary
:return: sources at the sepcified frequency
:return: sources at the sepcified frequency
"""
assert freq in self._freqDict, "The requested frequency is not in this survey."
return self._freqDict[freq]
def eval(self, u):
"""
Project fields to receiver locations
:param Fields u: fields object
:rtype: numpy.ndarray
:return: data
"""
data = SimPEG.Survey.Data(self)
for src in self.srcList:
for rx in src.rxList:
data[src, rx] = rx.eval(src, self.mesh, u)
return data
def evalDeriv(self, u):
raise Exception('Use Receivers to project fields deriv.')
SimPEG/EM/TDEM/BaseTDEM.py
+11 -11
View File
@@ -108,11 +108,11 @@ class BaseTDEMProblem(BaseTimeProblem, BaseEMProblem):
Ainv.clean()
return F
def Jvec(self, m, v, u=None):
def Jvec(self, m, v, f=None):
"""
:param numpy.array m: Conductivity model
:param numpy.ndarray v: vector (model object)
:param simpegEM.TDEM.FieldsTDEM u: Fields resulting from m
:param simpegEM.TDEM.FieldsTDEM f: Fields resulting from m
:rtype: numpy.ndarray
:return: w (data object)
@@ -125,15 +125,15 @@ class BaseTDEMProblem(BaseTimeProblem, BaseEMProblem):
"""
if self.verbose: print '%s\nCalculating J(v)\n%s'%('*'*50,'*'*50)
self.curModel = m
if u is None:
u = self.fields(m)
p = self.Gvec(m, v, u)
if f is None:
f = self.fields(m)
p = self.Gvec(m, v, f)
y = self.solveAh(m, p)
Jv = self.survey.evalDeriv(u, v=y)
Jv = self.survey.evalDeriv(f, v=y)
if self.verbose: print '%s\nDone calculating J(v)\n%s'%('*'*50,'*'*50)
return - mkvc(Jv)
def Jtvec(self, m, v, u=None):
def Jtvec(self, m, v, f=None):
"""
:param numpy.array m: Conductivity model
:param numpy.ndarray,SimPEG.Survey.Data v: vector (data object)
@@ -150,15 +150,15 @@ class BaseTDEMProblem(BaseTimeProblem, BaseEMProblem):
"""
if self.verbose: print '%s\nCalculating J^T(v)\n%s'%('*'*50,'*'*50)
self.curModel = m
if u is None:
u = self.fields(m)
if f is None:
f = self.fields(m)
if not isinstance(v, self.dataPair):
v = self.dataPair(self.survey, v)
p = self.survey.evalDeriv(u, v=v, adjoint=True)
p = self.survey.evalDeriv(f, v=v, adjoint=True)
y = self.solveAht(m, p)
w = self.Gtvec(m, y, u)
w = self.Gtvec(m, y, f)
if self.verbose: print '%s\nDone calculating J^T(v)\n%s'%('*'*50,'*'*50)
return - mkvc(w)
SimPEG/Examples/EM_Schenkel_Morrison_Casing.py
+275
View File
@@ -0,0 +1,275 @@
from SimPEG import *
from SimPEG.EM import FDEM, Analytics, mu_0
import time
try:
from pymatsolver import MumpsSolver
solver = MumpsSolver
except Exception:
solver = SolverLU
pass
def run(plotIt=True):
"""
EM: Schenkel and Morrison Casing Model
======================================
Here we create and run a FDEM forward simulation to calculate the vertical
current inside a steel-cased. The model is based on the Schenkel and
Morrison Casing Model, and the results are used in a 2016 SEG abstract by
Yang et al.
- Schenkel, C.J., and H.F. Morrison, 1990, Effects of well casing on potential field measurements using downhole current sources: Geophysical prospecting, 38, 663-686.
The model consists of:
- Air: Conductivity 1e-8 S/m, above z = 0
- Background: conductivity 1e-2 S/m, below z = 0
- Casing: conductivity 1e6 S/m
- 300m long
- radius of 0.1m
- thickness of 6e-3m
Inside the casing, we take the same conductivity as the background.
We are using an EM code to simulate DC, so we use frequency low enough
that the skin depth inside the casing is longer than the casing length (f
= 1e-6 Hz). The plot produced is of the current inside the casing.
These results are shown in the SEG abstract by Yang et al., 2016: 3D DC
resistivity modeling of steel casing for reservoir monitoring using
equivalent resistor network. The solver used to produce these results and
achieve the CPU time of ~30s is Mumps, which was installed using pymatsolver_
.. _pymatsolver: https://github.com/rowanc1/pymatsolver
This example is on figshare: https://dx.doi.org/10.6084/m9.figshare.3126961.v1
If you would use this example for a code comparison, or build upon it, a
citation would be much appreciated!
"""
if plotIt:
import matplotlib.pylab as plt
# ------------------ MODEL ------------------
sigmaair = 1e-8 # air
sigmaback = 1e-2 # background
sigmacasing = 1e6 # casing
sigmainside = sigmaback # inside the casing
casing_t = 0.006 # 1cm thickness
casing_l = 300 # length of the casing
casing_r = 0.1
casing_a = casing_r - casing_t/2. # inner radius
casing_b = casing_r + casing_t/2. # outer radius
casing_z = np.r_[-casing_l,0.]
# ------------------ SURVEY PARAMETERS ------------------
freqs = np.r_[1e-6] #[1e-1, 1, 5] # frequencies
dsz = -300 # down-hole z source location
src_loc = np.r_[0.,0.,dsz]
inf_loc = np.r_[0.,0.,1e4]
print 'Skin Depth: ', [(500./np.sqrt(sigmaback*_)) for _ in freqs]
# ------------------ MESH ------------------
# fine cells near well bore
csx1, csx2 = 2e-3, 60.
pfx1, pfx2 = 1.3, 1.3
ncx1 = np.ceil(casing_b/csx1+2)
# pad nicely to second cell size
npadx1 = np.floor(np.log(csx2/csx1) / np.log(pfx1))
hx1a,hx1b = Utils.meshTensor([(csx1,ncx1)]),Utils.meshTensor([(csx1,npadx1,pfx1)])
dx1 = sum(hx1a)+sum(hx1b)
dx1 = np.floor(dx1/csx2)
hx1b *= (dx1*csx2 - sum(hx1a))/sum(hx1b)
# second chunk of mesh
dx2 = 300. # uniform mesh out to here
ncx2 = np.ceil((dx2 - dx1)/csx2)
npadx2 = 45
hx2a, hx2b = Utils.meshTensor([(csx2,ncx2)]), Utils.meshTensor([(csx2,npadx2,pfx2)])
hx = np.hstack([hx1a,hx1b,hx2a,hx2b])
# z-direction
csz = 0.05
nza = 10
ncz, npadzu, npadzd = np.int(np.ceil(np.diff(casing_z)[0]/csz))+10, 68, 68 # cell size, number of core cells, number of padding cells in the x- direction
hz = Utils.meshTensor([(csz,npadzd,-1.3), (csz,ncz), (csz,npadzu,1.3)]) # vector of cell widths in the z-direction
# Mesh
mesh = Mesh.CylMesh([hx,1.,hz], [0.,0.,-np.sum(hz[:npadzu+ncz-nza])])
print 'Mesh Extent xmax: %f,: zmin: %f, zmax: %f'%(mesh.vectorCCx.max(), mesh.vectorCCz.min(), mesh.vectorCCz.max())
print 'Number of cells', mesh.nC
if plotIt is True:
fig, ax = plt.subplots(1, 1, figsize=(6, 4))
ax.set_title('Simulation Mesh')
mesh.plotGrid(ax=ax)
plt.show()
# Put the model on the mesh
sigWholespace = sigmaback*np.ones((mesh.nC))
sigBack = sigWholespace.copy()
sigBack[mesh.gridCC[:,2] > 0.] = sigmaair
sigCasing = sigBack.copy()
iCasingZ = (mesh.gridCC[:,2] <= casing_z[1]) & (mesh.gridCC[:,2] >= casing_z[0])
iCasingX = (mesh.gridCC[:,0] >= casing_a) & (mesh.gridCC[:,0] <= casing_b)
iCasing = iCasingX & iCasingZ
sigCasing[iCasing] = sigmacasing
if plotIt is True:
# plotting parameters
xlim = np.r_[0., 0.2]
zlim = np.r_[-350., 10.]
clim_sig = np.r_[-8,6]
# plot models
fig, ax = plt.subplots(1,1,figsize=(4,4))
f = plt.colorbar(mesh.plotImage(np.log10(sigCasing),ax=ax)[0], ax=ax)
ax.grid(which='both')
ax.set_title('Log_10 (Sigma)')
ax.set_xlim(xlim)
ax.set_ylim(zlim)
f.set_clim(clim_sig)
plt.show()
# -------------- Sources --------------------
# Define Custom Current Sources
# surface source
sg_x = np.zeros(mesh.vnF[0],dtype=complex)
sg_y = np.zeros(mesh.vnF[1],dtype=complex)
sg_z = np.zeros(mesh.vnF[2],dtype=complex)
nza = 2 # put the wire two cells above the surface
ncin = 2
# vertically directed wire
sgv_indx = (mesh.gridFz[:,0] > casing_a) & (mesh.gridFz[:,0] < casing_a + csx1) # hook it up to casing at the surface
sgv_indz = (mesh.gridFz[:,2] <= +csz*nza) & (mesh.gridFz[:,2] >= -csz*2)
sgv_ind = sgv_indx & sgv_indz
sg_z[sgv_ind] = -1.
# horizontally directed wire
sgh_indx = (mesh.gridFx[:,0] > casing_a) & (mesh.gridFx[:,0] <= inf_loc[2])
sgh_indz = (mesh.gridFx[:,2] > csz*(nza-0.5)) & (mesh.gridFx[:,2] < csz*(nza+0.5))
sgh_ind = sgh_indx & sgh_indz
sg_x[sgh_ind] = -1.
sgv2_indx = (mesh.gridFz[:,0] >= mesh.gridFx[sgh_ind,0].max()) & (mesh.gridFz[:,0] <= inf_loc[2]*1.2) # hook it up to casing at the surface
sgv2_indz = (mesh.gridFz[:,2] <= +csz*nza) & (mesh.gridFz[:,2] >= -csz*2)
sgv2_ind = sgv2_indx & sgv2_indz
sg_z[sgv2_ind] = 1.
# assemble the source
sg = np.hstack([sg_x,sg_y,sg_z])
sg_p = [FDEM.Src.RawVec_e([],_,sg/mesh.area) for _ in freqs]
# downhole source
dg_x = np.zeros(mesh.vnF[0],dtype=complex)
dg_y = np.zeros(mesh.vnF[1],dtype=complex)
dg_z = np.zeros(mesh.vnF[2],dtype=complex)
# vertically directed wire
dgv_indx = (mesh.gridFz[:,0] < csx1) # go through the center of the well
dgv_indz = (mesh.gridFz[:,2] <= +csz*nza) & (mesh.gridFz[:,2] > dsz + csz/2.)
dgv_ind = dgv_indx & dgv_indz
dg_z[dgv_ind] = -1.
# couple to the casing downhole
dgh_indx = mesh.gridFx[:,0] < casing_a + csx1
dgh_indz = (mesh.gridFx[:,2] < dsz + csz) & (mesh.gridFx[:,2] >= dsz)
dgh_ind = dgh_indx & dgh_indz
dg_x[dgh_ind] = 1.
# horizontal part at surface
dgh2_indx = mesh.gridFx[:,0] <= inf_loc[2]*1.2
dgh2_indz = sgh_indz.copy()
dgh2_ind = dgh2_indx & dgh2_indz
dg_x[dgh2_ind] = -1.
# vertical part at surface
dgv2_ind = sgv2_ind.copy()
dg_z[dgv2_ind] = 1.
# assemble the source
dg = np.hstack([dg_x,dg_y,dg_z])
dg_p = [FDEM.Src.RawVec_e([],_,dg/mesh.area) for _ in freqs]
# ------------ Problem and Survey ---------------
survey = FDEM.Survey(sg_p + dg_p)
mapping = [('sigma', Maps.IdentityMap(mesh))]
problem = FDEM.Problem_h(mesh, mapping=mapping)
problem.pair(survey)
# ------------- Solve ---------------------------
t0 = time.time()
fieldsCasing = problem.fields(sigCasing)
print 'Time to solve 2 sources', time.time() - t0
# Plot current
# current density
jn0 = fieldsCasing[dg_p,'j']
jn1 = fieldsCasing[sg_p,'j']
# current
in0 = [mesh.area*fieldsCasing[dg_p,'j'][:,i] for i in range(len(freqs))]
in1 = [mesh.area*fieldsCasing[sg_p,'j'][:,i] for i in range(len(freqs))]
in0 = np.vstack(in0).T
in1 = np.vstack(in1).T
# integrate to get z-current inside casing
inds_inx = (mesh.gridFz[:,0] >= casing_a) & (mesh.gridFz[:,0] <= casing_b)
inds_inz = (mesh.gridFz[:,2] >= dsz ) & (mesh.gridFz[:,2] <= 0)
inds_fz = inds_inx & inds_inz
indsx = [False]*mesh.nFx
inds = list(indsx) + list(inds_fz)
in0_in = in0[np.r_[inds]]
in1_in = in1[np.r_[inds]]
z_in = mesh.gridFz[inds_fz,2]
in0_in = in0_in.reshape([in0_in.shape[0]/3,3])
in1_in = in1_in.reshape([in1_in.shape[0]/3,3])
z_in = z_in.reshape([z_in.shape[0]/3,3])
I0 = in0_in.sum(1).real
I1 = in1_in.sum(1).real
z_in = z_in[:,0]
if plotIt is True:
fig, ax = plt.subplots(1,2,figsize=(12,4))
ax[0].plot(z_in,np.absolute(I0), z_in,np.absolute(I1))
ax[0].legend(['top casing', 'bottom casing'],loc='best')
ax[0].set_title('Magnitude of Vertical Current in Casing')
ax[1].semilogy(z_in,np.absolute(I0), z_in,np.absolute(I1))
ax[1].legend(['top casing', 'bottom casing'],loc='best')
ax[1].set_title('Magnitude of Vertical Current in Casing')
ax[1].set_ylim([1e-2, 1.])
plt.show()
if __name__ == '__main__':
run()
SimPEG/Examples/__init__.py
+2 -1
View File
@@ -5,6 +5,7 @@ import DC_Analytic_Dipole
import DC_Forward_PseudoSection
import EM_FDEM_1D_Inversion
import EM_FDEM_Analytic_MagDipoleWholespace
import EM_Schenkel_Morrison_Casing
import EM_TDEM_1D_Inversion
import FLOW_Richards_1D_Celia1990
import Forward_BasicDirectCurrent
@@ -19,7 +20,7 @@ import Mesh_Tensor_Creation
import MT_1D_ForwardAndInversion
import MT_3D_Foward
__examples__ = ["DC_Analytic_Dipole", "DC_Forward_PseudoSection", "EM_FDEM_1D_Inversion", "EM_FDEM_Analytic_MagDipoleWholespace", "EM_TDEM_1D_Inversion", "FLOW_Richards_1D_Celia1990", "Forward_BasicDirectCurrent", "Inversion_Linear", "Mesh_Basic_PlotImage", "Mesh_Basic_Types", "Mesh_Operators_CahnHilliard", "Mesh_QuadTree_Creation", "Mesh_QuadTree_FaceDiv", "Mesh_QuadTree_HangingNodes", "Mesh_Tensor_Creation", "MT_1D_ForwardAndInversion", "MT_3D_Foward"]
__examples__ = ["DC_Analytic_Dipole", "DC_Forward_PseudoSection", "EM_FDEM_1D_Inversion", "EM_FDEM_Analytic_MagDipoleWholespace", "EM_Schenkel_Morrison_Casing", "EM_TDEM_1D_Inversion", "FLOW_Richards_1D_Celia1990", "Forward_BasicDirectCurrent", "Inversion_Linear", "Mesh_Basic_PlotImage", "Mesh_Basic_Types", "Mesh_Operators_CahnHilliard", "Mesh_QuadTree_Creation", "Mesh_QuadTree_FaceDiv", "Mesh_QuadTree_HangingNodes", "Mesh_Tensor_Creation", "MT_1D_ForwardAndInversion", "MT_3D_Foward"]
##### AUTOIMPORTS #####
SimPEG/FLOW/Richards/RichardsProblem.py
+29 -29
View File
@@ -45,19 +45,19 @@ class RichardsSurvey(Survey.BaseSurvey):
@Utils.count
@Utils.requires('prob')
def dpred(self, m, u=None):
def dpred(self, m, f=None):
"""
Create the projected data from a model.
The field, u, (if provided) will be used for the predicted data
The field, f, (if provided) will be used for the predicted data
instead of recalculating the fields (which may be expensive!).
.. math::
d_\\text{pred} = P(u(m), m)
d_\\text{pred} = P(f(m), m)
Where P is a projection of the fields onto the data space.
"""
if u is None: u = self.prob.fields(m)
return Utils.mkvc(self.eval(u, m))
if f is None: f = self.prob.fields(m)
return Utils.mkvc(self.eval(f, m))
@Utils.requires('prob')
def eval(self, U, m):
@@ -233,16 +233,16 @@ class RichardsProblem(Problem.BaseTimeProblem):
return r, J
@Utils.timeIt
def Jfull(self, m, u=None):
if u is None:
u = self.fields(m)
def Jfull(self, m, f=None):
if f is None:
f = self.fields(m)
nn = len(u)-1
nn = len(f)-1
Asubs, Adiags, Bs = range(nn), range(nn), range(nn)
for ii in range(nn):
dt = self.timeSteps[ii]
bc = self.getBoundaryConditions(ii, u[ii])
Asubs[ii], Adiags[ii], Bs[ii] = self.diagsJacobian(m, u[ii], u[ii+1], dt, bc)
bc = self.getBoundaryConditions(ii, f[ii])
Asubs[ii], Adiags[ii], Bs[ii] = self.diagsJacobian(m, f[ii], f[ii+1], dt, bc)
Ad = sp.block_diag(Adiags)
zRight = Utils.spzeros((len(Asubs)-1)*Asubs[0].shape[0],Adiags[0].shape[1])
zTop = Utils.spzeros(Adiags[0].shape[0], len(Adiags)*Adiags[0].shape[1])
@@ -251,7 +251,7 @@ class RichardsProblem(Problem.BaseTimeProblem):
B = np.array(sp.vstack(Bs).todense())
Ainv = self.Solver(A, **self.solverOpts)
P = self.survey.evalDeriv(u, m)
P = self.survey.evalDeriv(f, m)
AinvB = Ainv * B
z = np.zeros((self.mesh.nC, B.shape[1]))
zAinvB = np.vstack((z, AinvB))
@@ -259,41 +259,41 @@ class RichardsProblem(Problem.BaseTimeProblem):
return J
@Utils.timeIt
def Jvec(self, m, v, u=None):
if u is None:
u = self.fields(m)
def Jvec(self, m, v, f=None):
if f is None:
f = self.fields(m)
JvC = range(len(u)-1) # Cell to hold each row of the long vector.
JvC = range(len(f)-1) # Cell to hold each row of the long vector.
# This is done via forward substitution.
bc = self.getBoundaryConditions(0, u[0])
temp, Adiag, B = self.diagsJacobian(m, u[0], u[1], self.timeSteps[0], bc)
bc = self.getBoundaryConditions(0, f[0])
temp, Adiag, B = self.diagsJacobian(m, f[0], f[1], self.timeSteps[0], bc)
Adiaginv = self.Solver(Adiag, **self.solverOpts)
JvC[0] = Adiaginv * (B*v)
for ii in range(1,len(u)-1):
bc = self.getBoundaryConditions(ii, u[ii])
Asub, Adiag, B = self.diagsJacobian(m, u[ii], u[ii+1], self.timeSteps[ii], bc)
for ii in range(1,len(f)-1):
bc = self.getBoundaryConditions(ii, f[ii])
Asub, Adiag, B = self.diagsJacobian(m, f[ii], f[ii+1], self.timeSteps[ii], bc)
Adiaginv = self.Solver(Adiag, **self.solverOpts)
JvC[ii] = Adiaginv * (B*v - Asub*JvC[ii-1])
P = self.survey.evalDeriv(u, m)
P = self.survey.evalDeriv(f, m)
return P * np.concatenate([np.zeros(self.mesh.nC)] + JvC)
@Utils.timeIt
def Jtvec(self, m, v, u=None):
if u is None:
u = self.field(m)
def Jtvec(self, m, v, f=None):
if f is None:
f = self.field(m)
P = self.survey.evalDeriv(u, m)
P = self.survey.evalDeriv(f, m)
PTv = P.T*v
# This is done via backward substitution.
minus = 0
BJtv = 0
for ii in range(len(u)-1,0,-1):
bc = self.getBoundaryConditions(ii-1, u[ii-1])
Asub, Adiag, B = self.diagsJacobian(m, u[ii-1], u[ii], self.timeSteps[ii-1], bc)
for ii in range(len(f)-1,0,-1):
bc = self.getBoundaryConditions(ii-1, f[ii-1])
Asub, Adiag, B = self.diagsJacobian(m, f[ii-1], f[ii], self.timeSteps[ii-1], bc)
#select the correct part of v
vpart = range((ii)*Adiag.shape[0], (ii+1)*Adiag.shape[0])
AdiaginvT = self.Solver(Adiag.T, **self.solverOpts)
SimPEG/InvProblem.py
+13 -13
View File
@@ -82,23 +82,23 @@ class BaseInvProblem(object):
self._warmstart = value
def getFields(self, m, store=False, deleteWarmstart=True):
u = None
f = None
for mtest, u_ofmtest in self.warmstart:
if m is mtest:
u = u_ofmtest
f = u_ofmtest
if self.debug: print 'InvProb is Warm Starting!'
break
if u is None:
u = self.prob.fields(m)
if f is None:
f = self.prob.fields(m)
if deleteWarmstart:
self.warmstart = []
if store:
self.warmstart += [(m,u)]
self.warmstart += [(m,f)]
return u
return f
@Utils.timeIt
def evalFunction(self, m, return_g=True, return_H=True):
@@ -109,21 +109,21 @@ class BaseInvProblem(object):
gc.collect()
# Store fields if doing a line-search
u = self.getFields(m, store=(return_g==False and return_H==False))
f = self.getFields(m, store=(return_g==False and return_H==False))
phi_d = self.dmisfit.eval(m, u=u)
phi_d = self.dmisfit.eval(m, f=f)
phi_m = self.reg.eval(m)
self.dpred = self.survey.dpred(m, u=u) # This is a cheap matrix vector calculation.
self.dpred = self.survey.dpred(m, f=f) # This is a cheap matrix vector calculation.
self.phi_d, self.phi_d_last = phi_d, self.phi_d
self.phi_m, self.phi_m_last = phi_m, self.phi_m
f = phi_d + self.beta * phi_m
phi = phi_d + self.beta * phi_m
out = (f,)
out = (phi,)
if return_g:
phi_dDeriv = self.dmisfit.evalDeriv(m, u=u)
phi_dDeriv = self.dmisfit.evalDeriv(m, f=f)
phi_mDeriv = self.reg.evalDeriv(m)
g = phi_dDeriv + self.beta * phi_mDeriv
@@ -131,7 +131,7 @@ class BaseInvProblem(object):
if return_H:
def H_fun(v):
phi_d2Deriv = self.dmisfit.eval2Deriv(m, v, u=u)
phi_d2Deriv = self.dmisfit.eval2Deriv(m, v, f=f)
phi_m2Deriv = self.reg.eval2Deriv(m, v=v)
return phi_d2Deriv + self.beta * phi_m2Deriv
SimPEG/MT/BaseMT.py
+13 -13
View File
@@ -27,7 +27,7 @@ class BaseMTProblem(BaseFDEMProblem):
# Might need to add more stuff here.
## NEED to clean up the Jvec and Jtvec to use Zero and Identities for None components.
def Jvec(self, m, v, u=None):
def Jvec(self, m, v, f=None):
"""
Function to calculate the data sensitivities dD/dm times a vector.
@@ -39,8 +39,8 @@ class BaseMTProblem(BaseFDEMProblem):
"""
# Calculate the fields
if u is None:
u = self.fields(m)
if f is None:
f= self.fields(m)
# Set current model
self.curModel = m
# Initiate the Jv object
@@ -56,9 +56,9 @@ class BaseMTProblem(BaseFDEMProblem):
# We need fDeriv_m = df/du*du/dm + df/dm
# Construct du/dm, it requires a solve
# NOTE: need to account for the 2 polarizations in the derivatives.
u_src = u[src,:]
f_src = f[src,:]
# dA_dm and dRHS_dm should be of size nE,2, so that we can multiply by dA_duI. The 2 columns are each of the polarizations.
dA_dm = self.getADeriv_m(freq, u_src, v) # Size: nE,2 (u_px,u_py) in the columns.
dA_dm = self.getADeriv_m(freq, f_src, v) # Size: nE,2 (u_px,u_py) in the columns.
dRHS_dm = self.getRHSDeriv_m(freq, v) # Size: nE,2 (u_px,u_py) in the columns.
if dRHS_dm is None:
du_dm = dA_duI * ( -dA_dm )
@@ -68,13 +68,13 @@ class BaseMTProblem(BaseFDEMProblem):
for rx in src.rxList:
# Get the projection derivative
# v should be of size 2*nE (for 2 polarizations)
PDeriv_u = lambda t: rx.evalDeriv(src, self.mesh, u, t) # wrt u, we don't have have PDeriv wrt m
PDeriv_u = lambda t: rx.evalDeriv(src, self.mesh, f, t) # wrt u, we don't have have PDeriv wrt m
Jv[src, rx] = PDeriv_u(mkvc(du_dm))
dA_duI.clean()
# Return the vectorized sensitivities
return mkvc(Jv)
def Jtvec(self, m, v, u=None):
def Jtvec(self, m, v, f=None):
"""
Function to calculate the transpose of the data sensitivities (dD/dm)^T times a vector.
@@ -85,8 +85,8 @@ class BaseMTProblem(BaseFDEMProblem):
:return: Data sensitivities wrt m
"""
if u is None:
u = self.fields(m)
if f is None:
f = self.fields(m)
self.curModel = m
@@ -103,15 +103,15 @@ class BaseMTProblem(BaseFDEMProblem):
for src in self.survey.getSrcByFreq(freq):
ftype = self._fieldType + 'Solution'
u_src = u[src, :]
f_src = f[src, :]
for rx in src.rxList:
# Get the adjoint evalDeriv
# PTv needs to be nE,
PTv = rx.evalDeriv(src, self.mesh, u, mkvc(v[src, rx],2), adjoint=True) # wrt u, need possibility wrt m
PTv = rx.evalDeriv(src, self.mesh, f, mkvc(v[src, rx],2), adjoint=True) # wrt u, need possibility wrt m
# Get the
dA_duIT = ATinv * PTv
dA_dmT = self.getADeriv_m(freq, u_src, mkvc(dA_duIT), adjoint=True)
dA_dmT = self.getADeriv_m(freq, f_src, mkvc(dA_duIT), adjoint=True)
dRHS_dmT = self.getRHSDeriv_m(freq, mkvc(dA_duIT), adjoint=True)
# Make du_dmT
if dRHS_dmT is None:
@@ -129,4 +129,4 @@ class BaseMTProblem(BaseFDEMProblem):
raise Exception('Must be real or imag')
# Clean the factorization, clear memory.
ATinv.clean()
return Jtv
return Jtv
SimPEG/MT/SurveyMT.py
+3 -3
View File
@@ -427,15 +427,15 @@ class Survey(SimPEGsurvey.BaseSurvey):
assert freq in self._freqDict, "The requested frequency is not in this survey."
return self._freqDict[freq]
def eval(self, u):
def eval(self, f):
data = Data(self)
for src in self.srcList:
sys.stdout.flush()
for rx in src.rxList:
data[src, rx] = rx.eval(src, self.mesh, u)
data[src, rx] = rx.eval(src, self.mesh, f)
return data
def evalDeriv(self, u):
def evalDeriv(self, f):
raise Exception('Use Transmitters to project fields deriv.')
#################
SimPEG/Optimization.py
+17
View File
@@ -888,6 +888,8 @@ class ProjectedGNCG(BFGS, Minimize, Remember):
maxIterCG = 5
tolCG = 1e-1
stepOffBoundsFact = 0.1 # perturbation of the inactive set off the bounds
lower = -np.inf
upper = np.inf
@@ -990,4 +992,19 @@ class ProjectedGNCG(BFGS, Minimize, Remember):
cgFlag = 1
# End CG Iterations
# Take a gradient step on the active cells if exist
if temp != self.xc.size:
rhs_a = (Active) * -self.g
dm_i = max( abs( delx ) )
dm_a = max( abs(rhs_a) )
# perturb inactive set off of bounds so that they are included in the step
delx = delx + self.stepOffBoundsFact * (rhs_a * dm_i / dm_a)
# Only keep gradients going in the right direction on the active set
indx = ((self.xc<=self.lower) & (delx < 0)) | ((self.xc>=self.upper) & (delx > 0))
delx[indx] = 0.
return delx
SimPEG/Problem.py
+16 -16
View File
@@ -88,28 +88,28 @@ class BaseProblem(object):
return self.survey is not None
@Utils.timeIt
def Jvec(self, m, v, u=None):
"""Jvec(m, v, u=None)
def Jvec(self, m, v, f=None):
"""Jvec(m, v, f=None)
Effect of J(m) on a vector v.
:param numpy.array m: model
:param numpy.array v: vector to multiply
:param numpy.array u: fields
:param Fields f: fields
:rtype: numpy.array
:return: Jv
"""
raise NotImplementedError('J is not yet implemented.')
@Utils.timeIt
def Jtvec(self, m, v, u=None):
"""Jtvec(m, v, u=None)
def Jtvec(self, m, v, f=None):
"""Jtvec(m, v, f=None)
Effect of transpose of J(m) on a vector v.
:param numpy.array m: model
:param numpy.array v: vector to multiply
:param numpy.array u: fields
:param Fields f: fields
:rtype: numpy.array
:return: JTv
"""
@@ -117,32 +117,32 @@ class BaseProblem(object):
@Utils.timeIt
def Jvec_approx(self, m, v, u=None):
"""Jvec_approx(m, v, u=None)
def Jvec_approx(self, m, v, f=None):
"""Jvec_approx(m, v, f=None)
Approximate effect of J(m) on a vector v
:param numpy.array m: model
:param numpy.array v: vector to multiply
:param numpy.array u: fields
:param Fields f: fields
:rtype: numpy.array
:return: approxJv
"""
return self.Jvec(m, v, u)
return self.Jvec(m, v, f)
@Utils.timeIt
def Jtvec_approx(self, m, v, u=None):
"""Jtvec_approx(m, v, u=None)
def Jtvec_approx(self, m, v, f=None):
"""Jtvec_approx(m, v, f=None)
Approximate effect of transpose of J(m) on a vector v.
:param numpy.array m: model
:param numpy.array v: vector to multiply
:param numpy.array u: fields
:param Fields f: fields
:rtype: numpy.array
:return: JTv
"""
return self.Jtvec(m, v, u)
return self.Jtvec(m, v, f)
def fields(self, m):
"""
@@ -224,9 +224,9 @@ class LinearProblem(BaseProblem):
def fields(self, m):
return self.G.dot(m)
def Jvec(self, m, v, u=None):
def Jvec(self, m, v, f=None):
return self.G.dot(v)
def Jtvec(self, m, v, u=None):
def Jtvec(self, m, v, f=None):
return self.G.T.dot(v)
SimPEG/Survey.py
+20 -20
View File
@@ -295,38 +295,38 @@ class BaseSurvey(object):
@Utils.count
@Utils.requires('prob')
def dpred(self, m, u=None):
"""dpred(m, u=None)
def dpred(self, m, f=None):
"""dpred(m, f=None)
Create the projected data from a model.
The field, u, (if provided) will be used for the predicted data
The fields, f, (if provided) will be used for the predicted data
instead of recalculating the fields (which may be expensive!).
.. math::
d_\\text{pred} = P(u(m))
d_\\text{pred} = P(f(m))
Where P is a projection of the fields onto the data space.
"""
if u is None: u = self.prob.fields(m)
return Utils.mkvc(self.eval(u))
if f is None: f = self.prob.fields(m)
return Utils.mkvc(self.eval(f))
@Utils.count
def eval(self, u):
"""eval(u)
def eval(self, f):
"""eval(f)
This function projects the fields onto the data space.
.. math::
d_\\text{pred} = \mathbf{P} u(m)
d_\\text{pred} = \mathbf{P} f(m)
"""
raise NotImplemented('eval is not yet implemented.')
@Utils.count
def evalDeriv(self, u):
"""evalDeriv(u)
def evalDeriv(self, f):
"""evalDeriv(f)
This function s the derivative of projects the fields onto the data space.
@@ -337,11 +337,11 @@ class BaseSurvey(object):
raise NotImplemented('eval is not yet implemented.')
@Utils.count
def residual(self, m, u=None):
"""residual(m, u=None)
def residual(self, m, f=None):
"""residual(m, f=None)
:param numpy.array m: geophysical model
:param numpy.array u: fields
:param numpy.array f: fields
:rtype: numpy.array
:return: data residual
@@ -352,14 +352,14 @@ class BaseSurvey(object):
\mu_\\text{data} = \mathbf{d}_\\text{pred} - \mathbf{d}_\\text{obs}
"""
return Utils.mkvc(self.dpred(m, u=u) - self.dobs)
return Utils.mkvc(self.dpred(m, f=f) - self.dobs)
@property
def isSynthetic(self):
"Check if the data is synthetic."
return self.mtrue is not None
def makeSyntheticData(self, m, std=0.05, u=None, force=False):
def makeSyntheticData(self, m, std=0.05, f=None, force=False):
"""
Make synthetic data given a model, and a standard deviation.
@@ -372,16 +372,16 @@ class BaseSurvey(object):
if getattr(self, 'dobs', None) is not None and not force:
raise Exception('Survey already has dobs. You can use force=True to override this exception.')
self.mtrue = m
self.dtrue = self.dpred(m, u=u)
self.dtrue = self.dpred(m, f=f)
noise = std*abs(self.dtrue)*np.random.randn(*self.dtrue.shape)
self.dobs = self.dtrue+noise
self.std = self.dobs*0 + std
return self.dobs
class LinearSurvey(BaseSurvey):
def eval(self, u):
return u
def eval(self, f):
return f
@property
def nD(self):
return self.prob.G.shape[0]
docs/examples/EM_Schenkel_Morrison_Casing.rst
+58
View File
@@ -0,0 +1,58 @@
.. _examples_EM_Schenkel_Morrison_Casing:
.. --------------------------------- ..
.. ..
.. THIS FILE IS AUTO GENEREATED ..
.. ..
.. SimPEG/Examples/__init__.py ..
.. ..
.. --------------------------------- ..
EM: Schenkel and Morrison Casing Model
======================================
Here we create and run a FDEM forward simulation to calculate the vertical
current inside a steel-cased. The model is based on the Schenkel and
Morrison Casing Model, and the results are used in a 2016 SEG abstract by
Yang et al.
- Schenkel, C.J., and H.F. Morrison, 1990, Effects of well casing on potential field measurements using downhole current sources: Geophysical prospecting, 38, 663-686.
The model consists of:
- Air: Conductivity 1e-8 S/m, above z = 0
- Background: conductivity 1e-2 S/m, below z = 0
- Casing: conductivity 1e6 S/m
- 300m long
- radius of 0.1m
- thickness of 6e-3m
Inside the casing, we take the same conductivity as the background.
We are using an EM code to simulate DC, so we use frequency low enough
that the skin depth inside the casing is longer than the casing length (f
= 1e-6 Hz). The plot produced is of the current inside the casing.
These results are shown in the SEG abstract by Yang et al., 2016: 3D DC
resistivity modeling of steel casing for reservoir monitoring using
equivalent resistor network. The solver used to produce these results and
achieve the CPU time of ~30s is Mumps, which was installed using pymatsolver_
.. _pymatsolver: https://github.com/rowanc1/pymatsolver
This example is on figshare: https://dx.doi.org/10.6084/m9.figshare.3126961.v1
If you would use this example for a code comparison, or build upon it, a
citation would be much appreciated!
.. plot::
from SimPEG import Examples
Examples.EM_Schenkel_Morrison_Casing.run()
.. literalinclude:: ../../SimPEG/Examples/EM_Schenkel_Morrison_Casing.py
:language: python
:linenos:
tests/flow/test_Richards.py
+6 -6
View File
@@ -116,8 +116,8 @@ class RichardsTests1D(unittest.TestCase):
v = np.random.rand(self.survey.nD)
z = np.random.rand(self.M.nC)
Hs = self.prob.fields(self.Ks)
vJz = v.dot(self.prob.Jvec(self.Ks,z,u=Hs))
zJv = z.dot(self.prob.Jtvec(self.Ks,v,u=Hs))
vJz = v.dot(self.prob.Jvec(self.Ks,z,f=Hs))
zJv = z.dot(self.prob.Jtvec(self.Ks,v,f=Hs))
tol = TOL*(10**int(np.log10(np.abs(zJv))))
passed = np.abs(vJz - zJv) < tol
print 'Richards Adjoint Test - PressureHead'
@@ -188,8 +188,8 @@ class RichardsTests2D(unittest.TestCase):
v = np.random.rand(self.survey.nD)
z = np.random.rand(self.M.nC)
Hs = self.prob.fields(self.Ks)
vJz = v.dot(self.prob.Jvec(self.Ks,z,u=Hs))
zJv = z.dot(self.prob.Jtvec(self.Ks,v,u=Hs))
vJz = v.dot(self.prob.Jvec(self.Ks,z,f=Hs))
zJv = z.dot(self.prob.Jtvec(self.Ks,v,f=Hs))
tol = TOL*(10**int(np.log10(np.abs(zJv))))
passed = np.abs(vJz - zJv) < tol
print '2D: Richards Adjoint Test - PressureHead'
@@ -260,8 +260,8 @@ class RichardsTests3D(unittest.TestCase):
v = np.random.rand(self.survey.nD)
z = np.random.rand(self.M.nC)
Hs = self.prob.fields(self.Ks)
vJz = v.dot(self.prob.Jvec(self.Ks,z,u=Hs))
zJv = z.dot(self.prob.Jtvec(self.Ks,v,u=Hs))
vJz = v.dot(self.prob.Jvec(self.Ks,z,f=Hs))
zJv = z.dot(self.prob.Jtvec(self.Ks,v,f=Hs))
tol = TOL*(10**int(np.log10(np.abs(zJv))))
passed = np.abs(vJz - zJv) < tol
print '3D: Richards Adjoint Test - PressureHead'