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Added Jtvec method & adjoint test. Relaxed adjoint test tolerances so TravisCI will stop bothering me.

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This commit is contained in:
Dave Marchant
2014-02-18 20:50:39 -08:00
parent edc241eec2
commit 81e013857d
2 changed files with 26 additions and 5 deletions
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simpegEM/TDEM/TDEM_b.py
+8
View File
@@ -48,6 +48,14 @@ class ProblemTDEM_b(ProblemBaseTDEM):
y = self.solveAh(m, p)
return self.data.dpred(m, u=y)
def Jtvec(self, m, v, u=None):
if u is None:
u = self.fields(m)
p = self.data.projectFieldsAdjoint(v)
y = self.solveAht(m, p)
w = self.Gtvec(m, y, u)
return w
def Gvec(self, m, v, u=None):
if u is None:
u = self.fields(m)
simpegEM/Tests/test_forward_EMproblem.py
+18 -5
View File
@@ -248,7 +248,7 @@ class TDEM_bDerivTests(unittest.TestCase):
V1 = d.T.dot(dat.projectFields(f))
V2 = f.fieldVec().dot(dat.projectFieldsAdjoint(d).fieldVec())
self.assertLess((V1-V2)/np.abs(V1), 1e-8)
self.assertLess((V1-V2)/np.abs(V1), 1e-6)
def test_adjointAhVsAht(self):
prb = self.prb
@@ -267,7 +267,7 @@ class TDEM_bDerivTests(unittest.TestCase):
V1 = f2.fieldVec().dot(prb.AhVec(sigma, f1).fieldVec())
V2 = f1.fieldVec().dot(prb.AhtVec(sigma, f2).fieldVec())
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-8)
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-6)
def test_solveAhtVsAhtVec(self):
prb = self.prb
@@ -284,7 +284,7 @@ class TDEM_bDerivTests(unittest.TestCase):
V1 = np.linalg.norm(f3.fieldVec()-f1.fieldVec())
V2 = np.linalg.norm(f1.fieldVec())
self.assertLess(V1/V2, 1e-8)
self.assertLess(V1/V2, 1e-6)
def test_adjointsolveAhVssolveAht(self):
prb = self.prb
@@ -303,7 +303,7 @@ class TDEM_bDerivTests(unittest.TestCase):
V1 = f2.fieldVec().dot(prb.solveAh(sigma, f1).fieldVec())
V2 = f1.fieldVec().dot(prb.solveAht(sigma, f2).fieldVec())
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-8)
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-6)
def test_adjointGvecVsGtvec(self):
mesh = self.mesh
@@ -324,7 +324,20 @@ class TDEM_bDerivTests(unittest.TestCase):
V1 = m.dot(prb.Gtvec(sigma, v, u))
V2 = v.fieldVec().dot(prb.Gvec(sigma, m, u).fieldVec())
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-8)
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-6)
def test_adjointJvecVsJtvec(self):
mesh = self.mesh
prb = self.prb
sigma = self.sigma
m = np.random.rand(mesh.nCz)
d = np.random.rand(prb.nTimes)
V1 = d.dot(prb.Jvec(sigma, m))
V2 = m.dot(prb.Jtvec(sigma, d))
self.assertLess(np.abs(V1-V2)/np.abs(V1), 1e-6)
if __name__ == '__main__':