added low memory version. now testing

This commit is contained in:
Nick
2019-11-02 14:12:11 -06:00
parent e499b3ee36
commit 3a173bdf55
4 changed files with 82 additions and 107 deletions
+3 -63
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@@ -10,19 +10,9 @@ import textwrap
import sys
CRED_FILE = "./AI-Adventure-2bb65e3a4e2f.json"
# Set the key
def console_print(str, pycharm=False):
if pycharm:
LINE_WIDTH=80
print((textwrap.fill(str, LINE_WIDTH)))
else:
print(str)
def play_unconstrained():
generator = CTRLGenerator()
#generator = WebGenerator(CRED_FILE)
prompt = get_story_start("apocalypse")
context = get_context("apocalypse")
story_manager = UnconstrainedStoryManager(generator)
@@ -30,7 +20,7 @@ def play_unconstrained():
print("\n")
print(context)
console_print(str(story_manager.story))
print(str(story_manager.story))
while (True):
action = input("> ")
@@ -47,61 +37,11 @@ def play_unconstrained():
action = action[2:]
action = " You " + action + ". "
action = remove_profanity(text)
action = first_to_second_person(action)
result = story_manager.act(action)
console_print("\n\n" + action + result)
def play_constrained():
print("\n")
#generator = WebGenerator(CRED_FILE)
generator = CTRLGenerator()
prompt = get_story_start("apocalypse")
context = get_context("apocalypse")
story_manager = CTRLStoryManager(generator)
story_manager.start_new_story(prompt, context=context)
console_print(story_manager.story_context())
possible_actions = story_manager.get_possible_actions()
while (True):
console_print("\nOptions:")
for i, action in enumerate(possible_actions):
console_print(str(i) + ") " + action)
result = None
while(result == None):
action_choice = input("Which action do you choose? ")
if action_choice is "print story":
print(story_manager.story)
continue
print("\n")
result, possible_actions = story_manager.act(action_choice)
console_print(result)
def play_cached():
generator = WebGenerator(CRED_FILE)
story_manager = ConstrainedStoryManager(generator)
story_manager.enable_caching(CRED_FILE)
story_manager.start_new_story(get_story_start("classic"), 0)
console_print(str(story_manager.story))
possible_actions = story_manager.get_possible_actions()
while (True):
console_print("\n\nOptions:")
for i, action in enumerate(possible_actions):
console_print(str(i) + ") " + action)
result = None
while(result == None):
action_choice = input("Which action do you choose? ")
print("\n")
result, possible_actions = story_manager.act(action_choice)
console_print(result)
print("\n\n" + action + result)
if __name__ == '__main__':
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+78 -42
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@@ -3,6 +3,7 @@ import numpy as np
tf.enable_eager_execution()
import generator.ctrl.model.transformer as transformer
import generator.ctrl.model.low_mem_transformer as low_mem_transformer
import re
from collections import Counter
from tensorflow.python import debug as tf_debug
@@ -11,6 +12,8 @@ from tensorflow.python.ops import embedding_ops
import fastBPE
from story.utils import *
import warnings
from tensorflow.python import pywrap_tensorflow
warnings.filterwarnings("ignore")
# the loss function is a simple categorical crossentropy between the logits and the labels
@@ -20,13 +23,15 @@ def loss(labels, logits):
class CTRLGenerator():
def __init__(self, control_code="Apocalypse ", generate_num=28, temperature=0.5, topk=40, nucleus_prob=0):
def __init__(self, control_code="Apocalypse ", generate_num=28, temperature=0.5, topk=40, nucleus_prob=0, lower_memory=False):
self.generate_num=generate_num
model_dir = "generator/ctrl/model/aidungeon2model/"
checkpoint_path = "generator/ctrl/model/aidungeon2model/checkpoint"
self.control_code = control_code
vocab_file = 'generator/ctrl/model/vocab'
code_file = 'generator/ctrl/model/codes'
self.lower_memory = lower_memory
self.max_new_lines = 5
@@ -63,12 +68,23 @@ class CTRLGenerator():
def __init__(self, vocab_size=vocab_size, embedding_size=embedding_dim, **kwargs):
super(TiedEmbeddingSoftmax, self).__init__()
self.w = self.add_weight(name='w', shape=(vocab_size, embedding_size),
initializer='random_normal',
trainable=True)
self.b = self.add_weight(name='b', shape=(vocab_size,),
initializer='zeros',
trainable=True)
if lower_memory:
self.w = self.add_weight(name='w', shape=(vocab_size, embedding_size),
initializer='random_normal', dtype=tf.float32,
trainable=True)
self.b = self.add_weight(name='b', shape=(vocab_size,),
initializer='zeros',
trainable=True)
else:
self.w = self.add_weight(name='w', shape=(vocab_size, embedding_size),
initializer='random_normal', dtype=tf.float32,
trainable=True)
self.b = self.add_weight(name='b', shape=(vocab_size,),
initializer='zeros',
trainable=True)
def call(self, inputs, embed=True):
if embed:
@@ -88,7 +104,10 @@ class CTRLGenerator():
# the activations after passing it from the transformer
# for some odd reason, TPUs don't play well with specifying the arguments of the Encoder() function
# so you have to leave them at their defaults
transformed = transformer.Encoder()(embedded, training=False)
if self.lower_memory:
transformed = low_mem_transformer.Encoder()(embedded, training=False)
else:
transformed = transformer.Encoder()(embedded, training=False)
# pass the activations from our tiedsoftmax class
# this time with embed=False denoting that we are doing the softmax operation
@@ -109,25 +128,6 @@ class CTRLGenerator():
model.compile(optimizer=optimizer, loss=loss)
print(model.summary())
# IMPORTANT
# this is where the saved model is presented to the code
# the model directory should have the model checkpoint and
# a checkpoint file
run_config = tf.contrib.tpu.RunConfig(
model_dir=model_dir)
# this converts the Keras model to a TensorFlow estimator
# this step is critical
# remember to patch the TF 1.14 file before running the code, else you're going to see errors here
estimator_model = tf.keras.estimator.model_to_estimator(keras_model=model, config=run_config)
# we now create a serving function from this estimator
# this enables us to load the model once and easily query it multiple times
def serving_input_fn():
inputs = {'input_1': tf.placeholder(tf.int32, [1, self.seq_length])}
return tf.estimator.export.ServingInputReceiver(inputs, inputs)
self.predict_fn = tf.contrib.predictor.from_estimator(estimator_model, serving_input_fn)
# almost there, we now take the user prompt and tokenize with BPE
# load BPE codes
@@ -138,19 +138,45 @@ class CTRLGenerator():
self.penalty = 1.2
self.topk=topk
def configure_verb_probs(self, probabilities, options):
# Make sure only a possible verb is chosen.
for word in get_possible_verbs():
probabilities[self.word2idx[word]] += 100
if lower_memory:
# Load the model file
chkpt_for_reader = '.'.join(checkpoint_path.split('.')[:-1])
reader = pywrap_tensorflow.NewCheckpointReader(chkpt_for_reader)
# Disallow used verbs
if "used_verbs" in options:
for verb in options["used_verbs"]:
if verb in self.word2idx:
probabilities[self.word2idx[verb]] = -1e8
# assign weights from the checkpoint to the Keras model
# this is super hacky but I couldn't find a better way to do this
# PR is highly welcome if you know of a better way
return probabilities
# embedding and softmax
# these are fp32
model.layers[1].trainable_variables[0].assign(tf.cast(reader.get_tensor('w'), tf.float32))
model.layers[1].trainable_variables[1].assign(tf.cast(reader.get_tensor('b'), tf.float32))
# encoder weights
for _ in range(len(model.layers[2].trainable_weights)):
tensor = model.layers[2].trainable_weights[_]
if 'normalization' in tensor.name[:-2]: # layernorm is fp32
tensor.assign(tf.cast(reader.get_tensor(tensor.name[:-2]), tf.float32))
else: # everything else is fp16
tensor.assign(tf.cast(reader.get_tensor(tensor.name[:-2]), tf.float16))
else:
run_config = tf.contrib.tpu.RunConfig(
model_dir=model_dir)
# this converts the Keras model to a TensorFlow estimator
# this step is critical
# remember to patch the TF 1.14 file before running the code, else you're going to see errors here
estimator_model = tf.keras.estimator.model_to_estimator(keras_model=model, config=run_config)
# we now create a serving function from this estimator
# this enables us to load the model once and easily query it multiple times
def serving_input_fn():
inputs = {'input_1': tf.placeholder(tf.int32, [1, self.seq_length])}
return tf.estimator.export.ServingInputReceiver(inputs, inputs)
self.predict_fn = tf.contrib.predictor.from_estimator(estimator_model, serving_input_fn)
def prompt_replace(self, prompt):
# print("\n\nBEFORE PROMPT_REPLACE:")
@@ -193,16 +219,26 @@ class CTRLGenerator():
# this is done by sliding the window over (past 512 tokens) and continuing prediction
# I'm sure this can be simplified (TODO)
if token <= self.seq_length:
prompt_logits = self.predict_fn({'input_1': tokens_generated[:, :self.seq_length]})[
if self.lower_memory:
prompt_logits = self.model.predict_on_batch(tokens_generated[:, :self.seq_length]).squeeze() / (
self.temperature if self.temperature > 0 else 1.)
else:
prompt_logits = self.predict_fn({'input_1': tokens_generated[:, :self.seq_length]})[
'tied_embedding_softmax'].squeeze() / (self.temperature if self.temperature > 0 else 1.)
_token = token if token < self.seq_length else -1
else:
_token = -1
end = token + 1
start = token - self.seq_length + 2
prompt_logits = \
self.predict_fn({'input_1': np.hstack((tokens_generated[:, 0:1], tokens_generated[:, start:end]))})[
'tied_embedding_softmax'].squeeze() / (self.temperature if self.temperature > 0 else 1.)
if self.memory:
prompt_logits = self.model.predict_on_batch(
np.hstack((tokens_generated[:, 0:1], tokens_generated[:, start:end]))).squeeze() / (
self.temperature if self.temperature > 0 else 1.)
else:
prompt_logits = \
self.predict_fn({'input_1': np.hstack((tokens_generated[:, 0:1], tokens_generated[:, start:end]))})[
'tied_embedding_softmax'].squeeze() / (self.temperature if self.temperature > 0 else 1.)
# if penalty (for repetition) is non-zero,
# discount the logits from already generated tokens
@@ -219,7 +255,7 @@ class CTRLGenerator():
"Edit", "&@@", "2:","1:", ":", "Edit@@", "EDI@@", "EDIT@@", "edit", "TL@@", "tl@@", ";@@",
'**', "http://@@", "Redd@@", "UP@@", "mom", "Up@@", "Me:", "Update", "mom@@", "Part",
"http://www.@@", "edit@@", "*@@", "Writing", "Text@@", "\\@@", "<br>@@", "<div", "|@@", '...',
'..','', 'https://@@', '...@@', "http://gutenberg@@"]
'..','', 'https://@@', '...@@', "http://gutenberg@@", "imag@@"]
encourage_tokens = ["zombie", "radiation", "fallout", "undead", "corpse", "vampire", "virus", "plague"]
for encourage_token in encourage_tokens:
+1 -2
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@@ -201,9 +201,8 @@ def second_to_first_person(text):
return capitalize_first_letters(text[1:])
if __name__ == '__main__':
result = 'The only thing they can tell you is, "We have nowhere else to…"'
result = result.replace('."', '".')
result = result.replace("#", "")