def make_model(
motif_size,
walk_length,
num_vertices,
embed_dim,
learn_rate,
num_epochs,
embeddings_dir,
):
# Layer graph
input_ = lbann.Slice(
lbann.Input(data_field='samples'),
slice_points=str_list([0, motif_size, motif_size+walk_length]),
)
motif_indices = lbann.Identity(input_)
walk_indices = lbann.Identity(input_)
gan = model.gan.CommunityGAN(
num_vertices,
motif_size,
embed_dim,
learn_rate,
)
loss, real_disc_prob, fake_disc_prob, gen_prob = gan(
motif_indices,
motif_size,
walk_indices,
walk_length,
)
# Metrics
metrics = [
lbann.Metric(real_disc_prob, name='D(real)'),
lbann.Metric(fake_disc_prob, name='D(fake)'),
lbann.Metric(gen_prob, name='G'),
]
# Callbacks
callbacks = [
lbann.CallbackPrint(),
lbann.CallbackTimer(),
lbann.CallbackDumpWeights(directory=embeddings_dir,
epoch_interval=num_epochs),
]
# Perform computation at double precision
for l in lbann.traverse_layer_graph(input_):
l.datatype = lbann.DataType.DOUBLE
for w in l.weights:
w.datatype = lbann.DataType.DOUBLE
# Contruct model
return lbann.Model(
num_epochs,
layers=lbann.traverse_layer_graph(input_),
objective_function=loss,
metrics=metrics,
callbacks=callbacks,
)
def set_up_experiment(args,
input_,
probs,
labels):
# Set up objective function
cross_entropy = lbann.CrossEntropy([probs, labels])
layers = list(lbann.traverse_layer_graph(input_))
weights = set()
for l in layers:
weights.update(l.weights)
# scale = weight decay
l2_reg = lbann.L2WeightRegularization(weights=weights, scale=1e-4)
objective_function = lbann.ObjectiveFunction([cross_entropy, l2_reg])
# Set up model
top1 = lbann.CategoricalAccuracy([probs, labels])
top5 = lbann.TopKCategoricalAccuracy([probs, labels], k=5)
metrics = [lbann.Metric(top1, name='top-1 accuracy', unit='%'),
lbann.Metric(top5, name='top-5 accuracy', unit='%')]
callbacks = [lbann.CallbackPrint(),
lbann.CallbackTimer(),
lbann.CallbackDropFixedLearningRate(
drop_epoch=[30, 60], amt=0.1)]
model = lbann.Model(args.mini_batch_size,
args.num_epochs,
layers=layers,
weights=weights,
objective_function=objective_function,
metrics=metrics,
callbacks=callbacks)
# Load data reader from prototext
data_reader_proto = lbann.lbann_pb2.LbannPB()
with open(args.data_reader, 'r') as f:
txtf.Merge(f.read(), data_reader_proto)
data_reader_proto = data_reader_proto.data_reader
# Set up optimizer
if args.optimizer == 'sgd':
print('Creating sgd optimizer')
optimizer = lbann.optimizer.SGD(
learn_rate=args.optimizer_learning_rate,
momentum=0.9,
nesterov=True
)
else:
optimizer = lbann.contrib.args.create_optimizer(args)
# Save prototext to args.prototext
if args.prototext:
lbann.proto.save_prototext(args.prototext,
model=model,
optimizer=optimizer,
data_reader=data_reader_proto)
return model, data_reader_proto, optimizer
def construct_model():
"""Model description
"""
import lbann
import lbann.modules
fc = lbann.modules.FullyConnectedModule
conv = lbann.modules.Convolution2dModule
conv1 = conv(20, 3, stride=1, padding=1, name='conv1')
conv2 = conv(20, 3, stride=1, padding=1, name='conv2')
fc1 = fc(100, name='fc1')
fc2 = fc(20, name='fc2')
fc3 = fc(num_classes, name='fc3')
# Layer graph
input = lbann.Input(name='inp_tensor', target_mode='classification')
inp_slice = lbann.Slice(input,
axis=0,
slice_points=str_list([0, dims - 1, dims]),
name='inp_slice')
xdata = lbann.Identity(inp_slice)
ylabel = lbann.Identity(inp_slice, name='gt_y')
#NHWC to NCHW
x = lbann.Reshape(xdata, dims='14 13 13')
x = conv2(conv1(x))
x = lbann.Reshape(x, dims='3380')
x = lbann.Dropout(lbann.Relu(fc1(x)), keep_prob=0.5)
x = lbann.Dropout(fc2(x), keep_prob=0.5)
pred = lbann.Softmax(fc3(x))
gt_label = lbann.OneHot(ylabel, size=num_classes)
loss = lbann.CrossEntropy([pred, gt_label], name='loss')
acc = lbann.CategoricalAccuracy([pred, gt_label])
layers = list(lbann.traverse_layer_graph(input))
# Setup objective function
weights = set()
for l in layers:
weights.update(l.weights)
obj = lbann.ObjectiveFunction(loss)
callbacks = [lbann.CallbackPrint(), lbann.CallbackTimer()]
# Construct model
num_epochs = 10
return lbann.Model(num_epochs,
weights=weights,
layers=layers,
metrics=[lbann.Metric(acc, name='accuracy', unit='%')],
objective_function=obj,
callbacks=callbacks)
def set_up_experiment(args, input_, probs, labels):
# Set up objective function
cross_entropy = lbann.CrossEntropy([probs, labels])
layers = list(lbann.traverse_layer_graph(input_))
l2_reg_weights = set()
for l in layers:
if type(l) == lbann.Convolution or type(l) == lbann.FullyConnected:
l2_reg_weights.update(l.weights)
# scale = weight decay
l2_reg = lbann.L2WeightRegularization(weights=l2_reg_weights, scale=1e-4)
objective_function = lbann.ObjectiveFunction([cross_entropy, l2_reg])
# Set up model
top1 = lbann.CategoricalAccuracy([probs, labels])
top5 = lbann.TopKCategoricalAccuracy([probs, labels], k=5)
metrics = [
lbann.Metric(top1, name='top-1 accuracy', unit='%'),
lbann.Metric(top5, name='top-5 accuracy', unit='%')
]
callbacks = [
lbann.CallbackPrint(),
lbann.CallbackTimer(),
lbann.CallbackDropFixedLearningRate(drop_epoch=[30, 60], amt=0.1)
]
model = lbann.Model(args.num_epochs,
layers=layers,
objective_function=objective_function,
metrics=metrics,
callbacks=callbacks)
# Set up data reader
data_reader = data.imagenet.make_data_reader(num_classes=args.num_classes)
# Set up optimizer
if args.optimizer == 'sgd':
print('Creating sgd optimizer')
optimizer = lbann.optimizer.SGD(
learn_rate=args.optimizer_learning_rate,
momentum=0.9,
nesterov=True)
else:
optimizer = lbann.contrib.args.create_optimizer(args)
# Setup trainer
trainer = lbann.Trainer(mini_batch_size=args.mini_batch_size)
return trainer, model, data_reader, optimizer
def construct_model():
"""Construct LBANN model.
Pilot1 Combo model
"""
import lbann
# Layer graph
data = lbann.Input(data_field='samples')
responses = lbann.Input(data_field='responses')
pred = combo.Combo()(data)
mse = lbann.MeanSquaredError([responses, pred])
SS_res = lbann.Reduction(lbann.Square(lbann.Subtract(responses, pred)),
mode='sum')
#SS_tot = var(x) = mean((x-mean(x))^2)
mini_batch_size = lbann.MiniBatchSize()
mean = lbann.Divide(lbann.BatchwiseReduceSum(responses), mini_batch_size)
SS_tot = lbann.Divide(
lbann.BatchwiseReduceSum(lbann.Square(lbann.Subtract(responses,
mean))),
mini_batch_size)
eps = lbann.Constant(value=1e-07, hint_layer=SS_tot)
r2 = lbann.Subtract(lbann.Constant(value=1, num_neurons='1'),
lbann.Divide(SS_res, lbann.Add(SS_tot, eps)))
metrics = [lbann.Metric(mse, name='mse')]
metrics.append(lbann.Metric(r2, name='r2'))
callbacks = [lbann.CallbackPrint(), lbann.CallbackTimer()]
# Construct model
num_epochs = 100
layers = list(lbann.traverse_layer_graph([data, responses]))
return lbann.Model(num_epochs,
layers=layers,
metrics=metrics,
objective_function=mse,
callbacks=callbacks)
def make_model(
data_dim,
latent_dim,
num_epochs,
):
# Layer graph
data = lbann.Input(data_field='samples')
autoencoder = model.autoencoder.FullyConnectedAutoencoder(
data_dim,
latent_dim,
)
reconstructed = autoencoder(data)
loss = lbann.MeanSquaredError(data, reconstructed)
# Metrics
metrics = [
lbann.Metric(loss, name='loss'),
]
# Callbacks
callbacks = [
lbann.CallbackPrint(),
lbann.CallbackTimer(),
lbann.CallbackDumpWeights(directory='weights',
epoch_interval=num_epochs),
]
# Contruct model
return lbann.Model(
num_epochs,
layers=lbann.traverse_layer_graph(loss),
objective_function=loss,
metrics=metrics,
callbacks=callbacks,
)
def construct_model(run_args):
"""Construct LBANN model.
Initial model for ATOM molecular VAE
"""
import lbann
print("Dump model dir ", run_args.dump_model_dir)
assert run_args.dump_model_dir, "evaluate script asssumes a pretrained WAE model"
pad_index = run_args.pad_index
assert pad_index is not None
sequence_length = run_args.sequence_length
assert sequence_length is not None
print("sequence length is {}".format(sequence_length))
data_layout = "data_parallel"
# Layer graph
input_ = lbann.Identity(lbann.Input(name='inp', target_mode="N/A"),
name='inp1')
wae_loss = []
input_feature_dims = sequence_length
embedding_size = run_args.embedding_dim
dictionary_size = run_args.num_embeddings
assert embedding_size is not None
assert dictionary_size is not None
save_output = False
print("save output? ", save_output, "out dir ", run_args.dump_outputs_dir)
z = lbann.Gaussian(mean=0.0, stdev=1.0, neuron_dims="128")
x = lbann.Slice(input_, slice_points=str_list([0, input_feature_dims]))
x = lbann.Identity(x)
waemodel = molwae.MolWAE(input_feature_dims, dictionary_size,
embedding_size, pad_index, save_output)
x_emb = lbann.Embedding(x,
num_embeddings=waemodel.dictionary_size,
embedding_dim=waemodel.embedding_size,
name='emb',
weights=waemodel.emb_weights)
latentz = waemodel.forward_encoder(x_emb)
fake_loss = lbann.MeanAbsoluteError(latentz, z)
layers = list(lbann.traverse_layer_graph(input_))
# Setup objective function
weights = set()
for l in layers:
weights.update(l.weights)
obj = lbann.ObjectiveFunction(fake_loss)
callbacks = [lbann.CallbackPrint(), lbann.CallbackTimer()]
#Dump output (activation) for post processing
conc_out = lbann.Concatenation([input_, latentz], name='conc_out')
callbacks.append(
lbann.CallbackDumpOutputs(
batch_interval=run_args.dump_outputs_interval,
execution_modes='test',
directory=run_args.dump_outputs_dir,
layers=f'{conc_out.name}'))
# Construct model
return lbann.Model(run_args.num_epochs,
weights=weights,
layers=layers,
objective_function=obj,
callbacks=callbacks)
metrics = [lbann.Metric(ce, name='CE', unit='')]
callbacks = [
lbann.CallbackPrint(),
lbann.CallbackTimer(),
lbann.CallbackGPUMemoryUsage(),
lbann.CallbackProfiler(skip_init=True),
]
# # TODO: Use polynomial learning rate decay (https://github.com/LLNL/lbann/issues/1581)
# callbacks.append(
# lbann.CallbackPolyLearningRate(
# power=1.0,
# num_epochs=100,
# end_lr=1e-5))
model = lbann.Model(
epochs=args.num_epochs,
layers=layers,
objective_function=obj,
callbacks=callbacks,
)
# Setup optimizer
optimizer = lbann.contrib.args.create_optimizer(args)
# Setup data reader
data_reader = create_unet3d_data_reader(train_dir=args.train_dir,
test_dir=args.test_dir)
# Setup trainer
trainer = lbann.Trainer(mini_batch_size=args.mini_batch_size)
# Runtime parameters/arguments
environment = lbann.contrib.args.get_distconv_environment(
# Run LBANN
# ----------------------------------
# Create optimizer
# Note: Learning rate in original word2vec is 0.025
learning_rate = args.learning_rate
if learning_rate < 0:
learning_rate = 0.025 * args.mini_batch_size
opt = lbann.SGD(learn_rate=learning_rate)
# Create LBANN objects
trainer = lbann.Trainer(mini_batch_size=args.mini_batch_size)
callbacks = [
lbann.CallbackPrint(),
lbann.CallbackTimer(),
lbann.CallbackDumpWeights(basename='embeddings',
epoch_interval=args.num_epochs),
]
model = lbann.Model(args.num_epochs,
layers=lbann.traverse_layer_graph(input_),
objective_function=obj,
callbacks=callbacks)
# Run LBANN
kwargs = lbann.contrib.args.get_scheduler_kwargs(args)
lbann.contrib.launcher.run(trainer, model, reader, opt,
job_name=args.job_name,
work_dir=args.work_dir,
overwrite_script=True,
**kwargs)
lbann.Metric(top5, name='top-5 accuracy', unit='%')
]
callbacks = [
lbann.CallbackPrint(),
lbann.CallbackTimer(),
lbann.CallbackDropFixedLearningRate(drop_epoch=[30, 60, 80], amt=0.1)
]
if args.warmup:
callbacks.append(
lbann.CallbackLinearGrowthLearningRate(target=0.1 *
args.mini_batch_size / 256,
num_epochs=5))
model = lbann.Model(args.mini_batch_size,
args.num_epochs,
layers=layers,
objective_function=obj,
metrics=metrics,
callbacks=callbacks,
random_seed=args.random_seed)
# Setup optimizer
opt = lbann.contrib.args.create_optimizer(args)
# Load data reader from prototext
data_reader_proto = lbann.lbann_pb2.LbannPB()
with open(args.data_reader, 'r') as f:
txtf.Merge(f.read(), data_reader_proto)
data_reader_proto = data_reader_proto.data_reader
# Save prototext
if args.prototext:
lbann.Reshape(lbann_scales, dims=str_list([-1, 1])))
# Construct LBANN model with metric checking and gradient checking
metric = lbann.Metric(lbann_z, name='metric')
callbacks = [
lbann.CallbackCheckMetric(
metric=metric.name,
lower_bound=np_z - tol,
upper_bound=np_z + tol,
error_on_failure=True,
execution_modes='test',
),
lbann.CallbackCheckGradients(error_on_failure=True),
]
model = lbann.Model(
epochs=0,
layers=lbann.traverse_layer_graph([input_, lbann_x]),
objective_function=lbann_z,
metrics=metric,
callbacks=callbacks,
)
# Run LBANN
lbann.run(
trainer=lbann.Trainer(mini_batch_size=1),
model=model,
data_reader=reader,
optimizer=lbann.SGD(),
job_name='lbann_fftshift_test',
)
def construct_model(run_args):
"""Construct LBANN model.
Initial model for ATOM molecular VAE
"""
import lbann
print("Dump model dir ", run_args.dump_model_dir)
assert run_args.dump_model_dir, "evaluate script asssumes a pretrained WAE model"
pad_index = run_args.pad_index
assert pad_index is not None
sequence_length = run_args.sequence_length
assert sequence_length is not None
print("sequence length is {}".format(sequence_length))
data_layout = "data_parallel"
# Layer graph
input_ = lbann.Identity(lbann.Input(name='inp', data_field='samples'),
name='inp1')
wae_loss = []
input_feature_dims = sequence_length
embedding_size = run_args.embedding_dim
dictionary_size = run_args.num_embeddings
assert embedding_size is not None
assert dictionary_size is not None
save_output = True if run_args.dump_outputs_dir else False
print("save output? ", save_output, "out dir ", run_args.dump_outputs_dir)
z = lbann.Gaussian(mean=0.0, stdev=1.0, neuron_dims=run_args.z_dim)
waemodel = molwae.MolWAE(input_feature_dims, dictionary_size,
embedding_size, pad_index, run_args.z_dim,
save_output)
recon, d1_real, d1_fake, d_adv, arg_max = waemodel(input_, z)
zero = lbann.Constant(value=0.0, num_neurons='1', name='zero')
one = lbann.Constant(value=1.0, num_neurons='1', name='one')
d1_real_bce = lbann.SigmoidBinaryCrossEntropy([d1_real, one],
name='d1_real_bce')
d1_fake_bce = lbann.SigmoidBinaryCrossEntropy([d1_fake, zero],
name='d1_fake_bce')
d_adv_bce = lbann.SigmoidBinaryCrossEntropy([d_adv, one], name='d_adv_bce')
wae_loss.append(recon)
layers = list(lbann.traverse_layer_graph(input_))
# Setup objective function
weights = set()
src_layers = []
dst_layers = []
for l in layers:
if (l.weights and "disc0" in l.name and "instance1" in l.name):
src_layers.append(l.name)
#freeze weights in disc2
if (l.weights and "disc1" in l.name):
dst_layers.append(l.name)
for idx in range(len(l.weights)):
l.weights[idx].optimizer = lbann.NoOptimizer()
weights.update(l.weights)
l2_weights = [
w for w in weights if not isinstance(w.optimizer, lbann.NoOptimizer)
]
l2_reg = lbann.L2WeightRegularization(weights=l2_weights, scale=1e-4)
wae_loss.append(d1_real_bce)
wae_loss.append(d_adv_bce)
wae_loss.append(d1_fake_bce)
wae_loss.append(l2_reg)
print("LEN wae loss ", len(wae_loss))
obj = lbann.ObjectiveFunction(wae_loss)
# Initialize check metric callback
metrics = [
lbann.Metric(d_adv_bce, name='adv_loss'),
lbann.Metric(recon, name='recon')
]
callbacks = [
lbann.CallbackPrint(),
#lbann.CallbackStepLearningRate(step=10, amt=0.5),
lbann.CallbackTimer()
]
callbacks.append(
lbann.CallbackReplaceWeights(source_layers=list2str(src_layers),
destination_layers=list2str(dst_layers),
batch_interval=2))
#Dump output (activation) for post processing
if (run_args.dump_outputs_dir):
pred_tensor = lbann.Concatenation(arg_max, name='pred_tensor')
callbacks.append(
lbann.CallbackDumpOutputs(
batch_interval=run_args.dump_outputs_interval,
execution_modes='test',
directory=run_args.dump_outputs_dir,
layers=f'inp pred_tensor {waemodel.q_mu.name}'))
# Construct model
return lbann.Model(run_args.num_epochs,
weights=weights,
layers=layers,
objective_function=obj,
metrics=metrics,
callbacks=callbacks)
def construct_model(num_epochs,mcr,spectral_loss,save_batch_interval):
"""Construct LBANN model.
"""
import lbann
# Layer graph
input = lbann.Input(target_mode='N/A',name='inp_img')
### Create expected labels for real and fake data (with label flipping = 0.01)
prob_flip=0.01
label_flip_rand = lbann.Uniform(min=0,max=1, neuron_dims='1')
label_flip_prob = lbann.Constant(value=prob_flip, num_neurons='1')
ones = lbann.GreaterEqual(label_flip_rand,label_flip_prob, name='is_real')
zeros = lbann.LogicalNot(ones,name='is_fake')
gen_ones=lbann.Constant(value=1.0,num_neurons='1')## All ones: no flip. Input for training Generator.
#==============================================
### Implement GAN
##Create the noise vector
z = lbann.Reshape(lbann.Gaussian(mean=0.0,stdev=1.0, neuron_dims="64", name='noise_vec'),dims='1 64')
## Creating the GAN object and implementing forward pass for both networks ###
d1_real, d1_fake, d_adv, gen_img, img = ExaGAN.CosmoGAN(mcr)(input,z,mcr)
#==============================================
### Compute quantities for adding to Loss and Metrics
d1_real_bce = lbann.SigmoidBinaryCrossEntropy([d1_real,ones],name='d1_real_bce')
d1_fake_bce = lbann.SigmoidBinaryCrossEntropy([d1_fake,zeros],name='d1_fake_bce')
d_adv_bce = lbann.SigmoidBinaryCrossEntropy([d_adv,gen_ones],name='d_adv_bce')
#img_loss = lbann.MeanSquaredError([gen_img,img])
#l1_loss = lbann.L1Norm(lbann.WeightedSum([gen_img,img], scaling_factors="1 -1"))
#==============================================
### Set up source and destination layers
layers = list(lbann.traverse_layer_graph(input))
weights = set()
src_layers,dst_layers = [],[]
for l in layers:
if(l.weights and "disc1" in l.name and "instance1" in l.name):
src_layers.append(l.name)
#freeze weights in disc2, analogous to discrim.trainable=False in Keras
if(l.weights and "disc2" in l.name):
dst_layers.append(l.name)
for idx in range(len(l.weights)):
l.weights[idx].optimizer = lbann.NoOptimizer()
weights.update(l.weights)
#l2_reg = lbann.L2WeightRegularization(weights=weights, scale=1e-4)
#==============================================
### Define Loss and Metrics
#Define loss (Objective function)
loss_list=[d1_real_bce,d1_fake_bce,d_adv_bce] ## Usual GAN loss function
# loss_list=[d1_real_bce,d1_fake_bce] ## skipping adversarial loss for G for testing spectral loss
if spectral_loss:
dft_gen_img = lbann.DFTAbs(gen_img)
dft_img = lbann.StopGradient(lbann.DFTAbs(img))
spec_loss = lbann.Log(lbann.MeanSquaredError(dft_gen_img, dft_img))
loss_list.append(lbann.LayerTerm(spec_loss, scale=8.0))
loss = lbann.ObjectiveFunction(loss_list)
#Define metrics
metrics = [lbann.Metric(d1_real_bce,name='d_real'),lbann.Metric(d1_fake_bce, name='d_fake'), lbann.Metric(d_adv_bce,name='gen_adv')]
if spectral_loss: metrics.append(lbann.Metric(spec_loss,name='spec_loss'))
#==============================================
### Define callbacks list
callbacks_list=[]
dump_outputs=True
save_model=False
print_model=False
callbacks_list.append(lbann.CallbackPrint())
callbacks_list.append(lbann.CallbackTimer())
callbacks_list.append(lbann.CallbackReplaceWeights(source_layers=list2str(src_layers), destination_layers=list2str(dst_layers),batch_interval=1))
if dump_outputs:
#callbacks_list.append(lbann.CallbackDumpOutputs(layers='inp_img gen_img_instance1_activation', execution_modes='train validation', directory='dump_outs',batch_interval=save_batch_interval,format='npy'))
callbacks_list.append(lbann.CallbackDumpOutputs(layers='gen_img_instance1_activation', execution_modes='train validation', directory='dump_outs',batch_interval=save_batch_interval,format='npy'))
if save_model : callbacks_list.append(lbann.CallbackSaveModel(dir='models'))
if print_model: callbacks_list.append(lbann.CallbackPrintModelDescription())
### Construct model
return lbann.Model(num_epochs,
weights=weights,
layers=layers,
metrics=metrics,
objective_function=loss,
callbacks=callbacks_list)
# Loss function and accuracy
loss = lbann.CrossEntropy(probs, labels)
acc = lbann.CategoricalAccuracy(probs, labels)
# ----------------------------------
# Setup experiment
# ----------------------------------
# Setup model
mini_batch_size = 64
num_epochs = 20
model = lbann.Model(num_epochs,
layers=lbann.traverse_layer_graph(input_),
objective_function=loss,
metrics=[lbann.Metric(acc, name='accuracy', unit='%')],
callbacks=[
lbann.CallbackPrintModelDescription(),
lbann.CallbackPrint(),
lbann.CallbackTimer()
])
# Setup optimizer
opt = lbann.SGD(learn_rate=0.01, momentum=0.9)
# Setup data reader
data_reader = data.mnist.make_data_reader()
# Setup trainer
trainer = lbann.Trainer(mini_batch_size=mini_batch_size)
# ----------------------------------
def make_model(num_vertices=None,
node_features=None,
num_classes=None,
dataset=None,
kernel_type='GCN',
callbacks=None,
num_epochs=1):
'''Construct a model DAG using one of the Graph Kernels
Args:
num_vertices (int): Number of vertices of each graph (default: None)
node_features (int): Number of features per noded (default: None)
num_classes (int): Number of classes as targets (default: None)
dataset (str): Preset data set to use. Either a datset parameter has to be
supplied or all of num_vertices, node_features, and
num_classes have to be supplied. (default: None)
kernel_type (str): Graph Kernel to use in model. Expected one of
GCN, GIN, Graph, or GatedGraph (deafult: GCN)
callbacks (list): Callbacks for the model. If set to None the model description,
GPU usage, training_output, and timer is reported.
(default: None)
num_epochs (int): Number of epochs to run (default: 1)
Returns:
(lbann Model Object: A model object with the supplied callbacks, dataset
presets, and graph kernels.
'''
assert num_vertices != dataset #Ensure atleast one of the values is set
if dataset is not None:
assert num_vertices is None
if dataset == 'MNIST':
num_vertices = 75
num_classes = 10
node_features = 1
elif dataset == 'PROTEINS':
num_vertices = 100
num_classes = 2
node_features = 3
else:
raise Exception("Unkown Dataset")
assert num_vertices is not None
assert num_classes is not None
assert node_features is not None
#----------------------------------
# Reshape and Slice Input Tensor
#----------------------------------
input_ = lbann.Input(target_mode='classification')
# Input dimensions should be (num_vertices * node_features + num_vertices^2 + num_classes )
# Input should have atleast two children since the target is classification
data = lbann_Graph_Data(input_, num_vertices, node_features, num_classes)
feature_matrix = data.x
adj_matrix = data.adj
target = data.y
#----------------------------------
# Perform Graph Convolution
#----------------------------------
if kernel_type == 'GIN':
x = GINConvLayer(feature_matrix, adj_matrix)
elif kernel_type == 'GCN':
x = GCNConvLayer(feature_matrix, adj_matrix)
elif kernel_type == 'Graph':
x = GraphConvLayer(feature_matrix, adj_matrix)
elif kernel_type == 'GatedGraph':
x = GATConvLayer(feature_matrix, adj_matrix)
else:
ValueError(
'Invalid Graph kernel specifier "{}" recieved. Expected one of:\
GIN,GCN,Graph or GatedGraph'.format(kernel_type))
out_channel = x.shape[1]
#----------------------------------
# Apply Reduction on Node Features
#----------------------------------
average_vector = lbann.Constant(value=1 / num_vertices,
num_neurons=str_list([1, num_vertices]),
name="Average_Vector")
x = x.get_mat(out_channel)
x = lbann.MatMul(average_vector, x, name="Node_Feature_Reduction")
# X is now a vector with output_channel dimensions
x = lbann.Reshape(x, dims=str_list([out_channel]), name="Squeeze")
x = lbann.FullyConnected(x, num_neurons=64, name="hidden_layer_1")
x = lbann.Relu(x, name="hidden_layer_1_activation")
x = lbann.FullyConnected(x,
num_neurons=num_classes,
name="Output_Fully_Connected")
#----------------------------------
# Loss Function and Accuracy s
#----------------------------------
probs = lbann.Softmax(x, name="Softmax")
loss = lbann.CrossEntropy(probs, target, name="Cross_Entropy_Loss")
accuracy = lbann.CategoricalAccuracy(probs, target, name="Accuracy")
layers = lbann.traverse_layer_graph(input_)
if callbacks is None:
print_model = lbann.CallbackPrintModelDescription(
) #Prints initial Model after Setup
training_output = lbann.CallbackPrint(
interval=1,
print_global_stat_only=False) #Prints training progress
gpu_usage = lbann.CallbackGPUMemoryUsage()
timer = lbann.CallbackTimer()
callbacks = [print_model, training_output, gpu_usage, timer]
else:
if isinstance(callbacks, list):
callbacks = callbacks
metrics = [lbann.Metric(accuracy, name='accuracy', unit="%")]
model = lbann.Model(num_epochs,
layers=layers,
objective_function=loss,
metrics=metrics,
callbacks=callbacks)
return model
def construct_model():
"""Construct LBANN model.
ExaGAN model
"""
import lbann
# Layer graph
input = lbann.Input(target_mode='N/A',name='inp_img')
#label flipping
label_flip_rand = lbann.Uniform(min=0,max=1, neuron_dims='1')
label_flip_prob = lbann.Constant(value=0.01, num_neurons='1')
one = lbann.GreaterEqual(label_flip_rand,label_flip_prob, name='is_real')
zero = lbann.LogicalNot(one,name='is_fake')
z = lbann.Reshape(lbann.Gaussian(mean=0.0,stdev=1.0, neuron_dims="64", name='noise_vec'),dims='1 64')
d1_real, d1_fake, d_adv, gen_img = ExaGAN.CosmoGAN()(input,z)
d1_real_bce = lbann.SigmoidBinaryCrossEntropy([d1_real,one],name='d1_real_bce')
d1_fake_bce = lbann.SigmoidBinaryCrossEntropy([d1_fake,zero],name='d1_fake_bce')
d_adv_bce = lbann.SigmoidBinaryCrossEntropy([d_adv,one],name='d_adv_bce')
layers = list(lbann.traverse_layer_graph(input))
# Setup objective function
weights = set()
src_layers = []
dst_layers = []
for l in layers:
if(l.weights and "disc1" in l.name and "instance1" in l.name):
src_layers.append(l.name)
#freeze weights in disc2, analogous to discrim.trainable=False in Keras
if(l.weights and "disc2" in l.name):
dst_layers.append(l.name)
for idx in range(len(l.weights)):
l.weights[idx].optimizer = lbann.NoOptimizer()
weights.update(l.weights)
#l2_reg = lbann.L2WeightRegularization(weights=weights, scale=1e-4)
obj = lbann.ObjectiveFunction([d1_real_bce,d1_fake_bce,d_adv_bce])
# Initialize check metric callback
metrics = [lbann.Metric(d1_real_bce,name='d_real'),
lbann.Metric(d1_fake_bce, name='d_fake'),
lbann.Metric(d_adv_bce,name='gen')]
callbacks = [lbann.CallbackPrint(),
lbann.CallbackTimer(),
#Uncomment to dump output for plotting and further statistical analysis
#lbann.CallbackDumpOutputs(layers='inp_img gen_img_instance1_activation',
# execution_modes='train validation',
# directory='dump_outs',
# batch_interval=100,
# format='npy'),
lbann.CallbackReplaceWeights(source_layers=list2str(src_layers),
destination_layers=list2str(dst_layers),
batch_interval=2)]
# Construct model
num_epochs = 20
return lbann.Model(num_epochs,
weights=weights,
layers=layers,
metrics=metrics,
objective_function=obj,
callbacks=callbacks)
def setup(num_patches=3,
mini_batch_size=512,
num_epochs=75,
learning_rate=0.005,
bn_statistics_group_size=2,
fc_data_layout='model_parallel',
warmup=True,
checkpoint_interval=None):
# Data dimensions
patch_dims = patch_generator.patch_dims
num_labels = patch_generator.num_labels(num_patches)
# Extract tensors from data sample
input = lbann.Input()
slice_points = [0]
for _ in range(num_patches):
patch_size = functools.reduce(operator.mul, patch_dims)
slice_points.append(slice_points[-1] + patch_size)
slice_points.append(slice_points[-1] + num_labels)
sample = lbann.Slice(input, slice_points=str_list(slice_points))
patches = [
lbann.Reshape(sample, dims=str_list(patch_dims))
for _ in range(num_patches)
]
labels = lbann.Identity(sample)
# Siamese network
head_cnn = modules.ResNet(
bn_statistics_group_size=bn_statistics_group_size)
heads = [head_cnn(patch) for patch in patches]
heads_concat = lbann.Concatenation(heads)
# Classification network
class_fc1 = modules.FcBnRelu(
4096,
statistics_group_size=bn_statistics_group_size,
name='siamese_class_fc1',
data_layout=fc_data_layout)
class_fc2 = modules.FcBnRelu(
4096,
statistics_group_size=bn_statistics_group_size,
name='siamese_class_fc2',
data_layout=fc_data_layout)
class_fc3 = lbann.modules.FullyConnectedModule(num_labels,
activation=lbann.Softmax,
name='siamese_class_fc3',
data_layout=fc_data_layout)
x = class_fc1(heads_concat)
x = class_fc2(x)
probs = class_fc3(x)
# Setup objective function
cross_entropy = lbann.CrossEntropy([probs, labels])
l2_reg_weights = set()
for l in lbann.traverse_layer_graph(input):
if type(l) == lbann.Convolution or type(l) == lbann.FullyConnected:
l2_reg_weights.update(l.weights)
l2_reg = lbann.L2WeightRegularization(weights=l2_reg_weights, scale=0.0002)
obj = lbann.ObjectiveFunction([cross_entropy, l2_reg])
# Setup model
metrics = [
lbann.Metric(lbann.CategoricalAccuracy([probs, labels]),
name='accuracy',
unit='%')
]
callbacks = [lbann.CallbackPrint(), lbann.CallbackTimer()]
if checkpoint_interval:
callbacks.append(
lbann.CallbackCheckpoint(checkpoint_dir='ckpt',
checkpoint_epochs=5))
# Learning rate schedules
if warmup:
callbacks.append(
lbann.CallbackLinearGrowthLearningRate(target=learning_rate *
mini_batch_size / 128,
num_epochs=5))
callbacks.append(
lbann.CallbackDropFixedLearningRate(drop_epoch=list(range(0, 100, 15)),
amt=0.25))
# Construct model
model = lbann.Model(num_epochs,
layers=lbann.traverse_layer_graph(input),
objective_function=obj,
metrics=metrics,
callbacks=callbacks)
# Setup optimizer
opt = lbann.SGD(learn_rate=learning_rate, momentum=0.9)
# opt = lbann.Adam(learn_rate=learning_rate, beta1=0.9, beta2=0.999, eps=1e-8)
# Setup data reader
data_reader = make_data_reader(num_patches)
# Return experiment objects
return model, data_reader, opt
def make_model(
num_epochs,
embed_dim,
num_heads,
label_smoothing,
):
# Embedding weights
var = 2 / (embed_dim + vocab_size) # Glorot initialization
embedding_weights = lbann.Weights(
name='embeddings',
initializer=lbann.NormalInitializer(standard_deviation=math.sqrt(var)),
)
# Input is two sequences of token IDs
input_ = lbann.Input(data_field='samples')
# Get sequences of embedding vectors
# Note: Scale embeddings by sqrt(embed_dim).
# Note: Decoder input is shifted right, so embedding for last
# token isn't needed.
embeddings_tokens = lbann.Identity(
lbann.Slice(
input_,
axis=0,
slice_points=str_list([0, 2 * sequence_length - 1]),
))
embeddings = lbann.Embedding(
embeddings_tokens,
weights=embedding_weights,
num_embeddings=vocab_size,
embedding_dim=embed_dim,
padding_idx=pad_index,
)
embeddings = lbann.WeightedSum(
embeddings,
scaling_factors=str(math.sqrt(embed_dim)),
)
embeddings_slice = lbann.Slice(
embeddings,
axis=0,
slice_points=str_list([0, sequence_length, 2 * sequence_length - 1]),
)
encoder_input = lbann.Identity(embeddings_slice)
decoder_input = lbann.Identity(embeddings_slice)
# Apply transformer model
transformer = lbann.models.Transformer(
hidden_size=embed_dim,
num_heads=num_heads,
name='transformer',
)
result = transformer(
encoder_input,
sequence_length,
decoder_input,
sequence_length - 1,
)
# Reconstruct decoder input
preds = lbann.ChannelwiseFullyConnected(
result,
weights=embedding_weights,
output_channel_dims=[vocab_size],
bias=False,
transpose=True,
)
preds = lbann.ChannelwiseSoftmax(preds)
preds = lbann.Slice(preds,
axis=0,
slice_points=str_list(range(sequence_length)))
preds = [lbann.Identity(preds) for _ in range(sequence_length - 1)]
# Count number of non-pad tokens
label_tokens = lbann.Identity(
lbann.Slice(
input_,
slice_points=str_list([sequence_length + 1, 2 * sequence_length]),
))
pads = lbann.Constant(value=pad_index,
num_neurons=str(sequence_length - 1))
is_not_pad = lbann.NotEqual(label_tokens, pads)
num_not_pad = lbann.Reduction(is_not_pad, mode='sum')
# Cross entropy loss with label smoothing
label_tokens = lbann.Slice(
label_tokens,
slice_points=str_list(range(sequence_length)),
)
label_tokens = [
lbann.Identity(label_tokens) for _ in range(sequence_length - 1)
]
if label_smoothing > 0:
uniform_label = lbann.Constant(value=1 / vocab_size,
num_neurons=str_list([1, vocab_size]))
loss = []
for i in range(sequence_length - 1):
label = lbann.OneHot(label_tokens[i], size=vocab_size)
label = lbann.Reshape(label, dims=str_list([1, vocab_size]))
if label_smoothing > 0:
label = lbann.WeightedSum(
label,
uniform_label,
scaling_factors=str_list(
[1 - label_smoothing, label_smoothing]),
)
loss.append(lbann.CrossEntropy(preds[i], label))
loss = lbann.Concatenation(loss)
# Average cross entropy over non-pad tokens
loss_scales = lbann.Divide(
is_not_pad,
lbann.Tessellate(num_not_pad, hint_layer=is_not_pad),
)
loss = lbann.Multiply(loss, loss_scales)
loss = lbann.Reduction(loss, mode='sum')
# Construct model
metrics = []
callbacks = [lbann.CallbackPrint(), lbann.CallbackTimer()]
return lbann.Model(
num_epochs,
layers=lbann.traverse_layer_graph(input_),
objective_function=loss,
metrics=metrics,
callbacks=callbacks,
)
obj = lbann.ObjectiveFunction([cross_entropy, l2_reg])
# Setup model
metrics = [
lbann.Metric(top1, name='top-1 accuracy', unit='%'),
lbann.Metric(top5, name='top-5 accuracy', unit='%')
]
callbacks = [
lbann.CallbackPrint(),
lbann.CallbackTimer(),
lbann.CallbackDropFixedLearningRate(drop_epoch=[20, 40, 60], amt=0.1)
]
model = lbann.Model(args.mini_batch_size,
args.num_epochs,
layers=layers,
weights=weights,
objective_function=obj,
metrics=metrics,
callbacks=callbacks)
# Setup optimizer
opt = lbann.contrib.args.create_optimizer(args)
# Load data reader from prototext
data_reader_proto = lbann.lbann_pb2.LbannPB()
with open(args.data_reader, 'r') as f:
txtf.Merge(f.read(), data_reader_proto)
data_reader_proto = data_reader_proto.data_reader
# Save prototext
if args.prototext:
x = lbann.WeightsLayer(
weights=lbann.Weights(
lbann.ValueInitializer(values=str_list(image.flatten())), ),
dims=str_list(image.shape),
)
max_r = image.shape[-1] // 2
rprof = RadialProfile()(x, image.shape, max_r)
rprof_slice = lbann.Slice(rprof, slice_points=str_list([0, 1, 2, 3]))
red = lbann.Identity(rprof_slice, name='red')
green = lbann.Identity(rprof_slice, name='green')
blue = lbann.Identity(rprof_slice, name='blue')
# Construct model
callbacks = [
lbann.CallbackDumpOutputs(layers=str_list(['red', 'green', 'blue'])),
]
model = lbann.Model(
epochs=0,
layers=lbann.traverse_layer_graph([input_, rprof]),
callbacks=callbacks,
)
# Run LBANN
lbann.run(
trainer=lbann.Trainer(mini_batch_size=1),
model=model,
data_reader=reader,
optimizer=lbann.NoOptimizer(),
job_name='lbann_radial_profile_test',
)
def construct_model(run_args):
"""Construct LBANN model.
Initial model for ATOM molecular VAE
"""
import lbann
pad_index = run_args.pad_index
assert pad_index is not None
sequence_length = run_args.sequence_length
assert sequence_length is not None
print("sequence length is {}".format(sequence_length))
data_layout = "data_parallel"
# Layer graph
input_ = lbann.Identity(lbann.Input(name='inp', target_mode="N/A"),
name='inp1')
vae_loss = []
input_feature_dims = sequence_length
embedding_size = run_args.embedding_dim
dictionary_size = run_args.num_embeddings
assert embedding_size is not None
assert dictionary_size is not None
kl, recon = molvae.MolVAE(input_feature_dims, dictionary_size,
embedding_size, pad_index)(input_)
vae_loss.append(kl)
vae_loss.append(recon)
print("LEN vae loss ", len(vae_loss))
layers = list(lbann.traverse_layer_graph(input_))
# Setup objective function
weights = set()
for l in layers:
weights.update(l.weights)
l2_reg = lbann.L2WeightRegularization(weights=weights, scale=5e-4)
obj = lbann.ObjectiveFunction(vae_loss)
# Initialize check metric callback
metrics = [
lbann.Metric(kl, name='kl_loss'),
lbann.Metric(recon, name='recon')
]
callbacks = [lbann.CallbackPrint(), lbann.CallbackTimer()]
if (run_args.dump_weights_interval > 0):
callbacks.append(
lbann.CallbackDumpWeights(
directory=run_args.dump_weights_dir,
epoch_interval=run_args.dump_weights_interval))
if (run_args.ltfb):
send_name = ('' if run_args.weights_to_send == 'All' else
run_args.weights_to_send) #hack for Merlin empty string
weights_to_ex = [w.name for w in weights if send_name in w.name]
print("LTFB Weights to exchange ", weights_to_ex)
callbacks.append(
lbann.CallbackLTFB(batch_interval=run_args.ltfb_batch_interval,
metric='recon',
weights=list2str(weights_to_ex),
low_score_wins=True,
exchange_hyperparameters=True))
if (run_args.warmup):
callbacks.append(
lbann.CallbackLinearGrowthLearningRate(target=run_args.lr / 512 *
run_args.batch_size,
num_epochs=5))
# Construct model
return lbann.Model(run_args.num_epochs,
weights=weights,
layers=layers,
objective_function=obj,
metrics=metrics,
callbacks=callbacks)
def construct_jag_wae_model(ydim, zdim, mcf, useCNN, dump_models,
ltfb_batch_interval, num_epochs):
"""Construct LBANN model.
JAG Wasserstein autoencoder model
"""
# Layer graph
input = lbann.Input(data_field='samples', name='inp_data')
# data is 64*64*4 images + 15 scalar + 5 param
#inp_slice = lbann.Slice(input, axis=0, slice_points="0 16399 16404",name='inp_slice')
inp_slice = lbann.Slice(input,
axis=0,
slice_points=str_list([0, ydim, ydim + 5]),
name='inp_slice')
gt_y = lbann.Identity(inp_slice, name='gt_y')
gt_x = lbann.Identity(inp_slice, name='gt_x') #param not used
zero = lbann.Constant(value=0.0, num_neurons='1', name='zero')
one = lbann.Constant(value=1.0, num_neurons='1', name='one')
z_dim = 20 #Latent space dim
z = lbann.Gaussian(mean=0.0, stdev=1.0, neuron_dims="20")
model = macc_network_architectures.MACCWAE(zdim,
ydim,
cf=mcf,
use_CNN=useCNN)
d1_real, d1_fake, d_adv, pred_y = model(z, gt_y)
d1_real_bce = lbann.SigmoidBinaryCrossEntropy([d1_real, one],
name='d1_real_bce')
d1_fake_bce = lbann.SigmoidBinaryCrossEntropy([d1_fake, zero],
name='d1_fake_bce')
d_adv_bce = lbann.SigmoidBinaryCrossEntropy([d_adv, one], name='d_adv_bce')
img_loss = lbann.MeanSquaredError([pred_y, gt_y])
rec_error = lbann.L2Norm2(
lbann.WeightedSum([pred_y, gt_y], scaling_factors="1 -1"))
layers = list(lbann.traverse_layer_graph(input))
# Setup objective function
weights = set()
src_layers = []
dst_layers = []
for l in layers:
if (l.weights and "disc0" in l.name and "instance1" in l.name):
src_layers.append(l.name)
#freeze weights in disc2
if (l.weights and "disc1" in l.name):
dst_layers.append(l.name)
for idx in range(len(l.weights)):
l.weights[idx].optimizer = lbann.NoOptimizer()
weights.update(l.weights)
l2_reg = lbann.L2WeightRegularization(weights=weights, scale=1e-4)
d_adv_bce = lbann.LayerTerm(d_adv_bce, scale=0.01)
obj = lbann.ObjectiveFunction(
[d1_real_bce, d1_fake_bce, d_adv_bce, img_loss, rec_error, l2_reg])
# Initialize check metric callback
metrics = [lbann.Metric(img_loss, name='recon_error')]
#pred_y = macc_models.MACCWAE.pred_y_name
callbacks = [
lbann.CallbackPrint(),
lbann.CallbackTimer(),
lbann.CallbackPrintModelDescription(),
lbann.CallbackSaveModel(dir=dump_models),
lbann.CallbackReplaceWeights(source_layers=list2str(src_layers),
destination_layers=list2str(dst_layers),
batch_interval=2)
]
if (ltfb_batch_interval > 0):
callbacks.append(
lbann.CallbackLTFB(batch_interval=ltfb_batch_interval,
metric='recon_error',
low_score_wins=True,
exchange_hyperparameters=True))
# Construct model
return lbann.Model(num_epochs,
weights=weights,
layers=layers,
metrics=metrics,
objective_function=obj,
callbacks=callbacks)
def setup(data_reader_file,
name='classifier',
num_labels=200,
mini_batch_size=128,
num_epochs=1000,
learning_rate=0.1,
bn_statistics_group_size=2,
fc_data_layout='model_parallel',
warmup_epochs=50,
learning_rate_drop_interval=50,
learning_rate_drop_factor=0.25,
checkpoint_interval=None):
# Setup input data
input = lbann.Input(target_mode = 'classification')
images = lbann.Identity(input)
labels = lbann.Identity(input)
# Classification network
head_cnn = modules.ResNet(bn_statistics_group_size=bn_statistics_group_size)
class_fc = lbann.modules.FullyConnectedModule(num_labels,
activation=lbann.Softmax,
name=f'{name}_fc',
data_layout=fc_data_layout)
x = head_cnn(images)
probs = class_fc(x)
# Setup objective function
cross_entropy = lbann.CrossEntropy([probs, labels])
l2_reg_weights = set()
for l in lbann.traverse_layer_graph(input):
if type(l) == lbann.Convolution or type(l) == lbann.FullyConnected:
l2_reg_weights.update(l.weights)
l2_reg = lbann.L2WeightRegularization(weights=l2_reg_weights, scale=0.0002)
obj = lbann.ObjectiveFunction([cross_entropy, l2_reg])
# Setup model
metrics = [lbann.Metric(lbann.CategoricalAccuracy([probs, labels]),
name='accuracy', unit='%')]
callbacks = [lbann.CallbackPrint(), lbann.CallbackTimer()]
if checkpoint_interval:
callbacks.append(
lbann.CallbackCheckpoint(
checkpoint_dir='ckpt',
checkpoint_epochs=5
)
)
# Learning rate schedules
if warmup_epochs:
callbacks.append(
lbann.CallbackLinearGrowthLearningRate(
target=learning_rate * mini_batch_size / 128,
num_epochs=warmup_epochs
)
)
if learning_rate_drop_factor:
callbacks.append(
lbann.CallbackDropFixedLearningRate(
drop_epoch=list(range(0, num_epochs, learning_rate_drop_interval)),
amt=learning_rate_drop_factor)
)
# Construct model
model = lbann.Model(num_epochs,
layers=lbann.traverse_layer_graph(input),
objective_function=obj,
metrics=metrics,
callbacks=callbacks)
# Setup optimizer
# opt = lbann.Adam(learn_rate=learning_rate, beta1=0.9, beta2=0.999, eps=1e-8)
opt = lbann.SGD(learn_rate=learning_rate, momentum=0.9)
# Load data reader from prototext
data_reader_proto = lbann.lbann_pb2.LbannPB()
with open(data_reader_file, 'r') as f:
google.protobuf.text_format.Merge(f.read(), data_reader_proto)
data_reader_proto = data_reader_proto.data_reader
for reader_proto in data_reader_proto.reader:
reader_proto.python.module_dir = os.path.dirname(os.path.realpath(__file__))
# Return experiment objects
return model, data_reader_proto, opt
def construct_macc_surrogate_model(xdim, ydim, zdim, wae_mcf, surrogate_mcf,
lambda_cyc, useCNN, dump_models,
pretrained_dir, ltfb_batch_interval,
num_epochs):
"""Construct MACC surrogate model.
See https://arxiv.org/pdf/1912.08113.pdf model architecture and other details
"""
# Layer graph
input = lbann.Input(data_field='samples', name='inp_data')
# data is 64*64*4 images + 15 scalar + 5 param
inp_slice = lbann.Slice(input,
axis=0,
slice_points=str_list([0, ydim, ydim + xdim]),
name='inp_slice')
gt_y = lbann.Identity(inp_slice, name='gt_y')
gt_x = lbann.Identity(inp_slice, name='gt_x') #param not used
zero = lbann.Constant(value=0.0, num_neurons='1', name='zero')
one = lbann.Constant(value=1.0, num_neurons='1', name='one')
z = lbann.Gaussian(mean=0.0, stdev=1.0, neuron_dims="20")
wae = macc_network_architectures.MACCWAE(
zdim, ydim, cf=wae_mcf, use_CNN=useCNN) #pretrained, freeze
inv = macc_network_architectures.MACCInverse(xdim, cf=surrogate_mcf)
fwd = macc_network_architectures.MACCForward(zdim, cf=surrogate_mcf)
y_pred_fwd = wae.encoder(gt_y)
param_pred_ = wae.encoder(gt_y)
input_fake = inv(param_pred_)
output_cyc = fwd(input_fake)
y_image_re2 = wae.decoder(output_cyc)
'''**** Train cycleGAN input params <--> latent space of (images, scalars) ****'''
output_fake = fwd(gt_x)
y_image_re = wae.decoder(output_fake)
param_pred2_ = wae.encoder(y_image_re)
input_cyc = inv(param_pred2_)
L_l2_x = lbann.MeanSquaredError(input_fake, gt_x)
L_cyc_x = lbann.MeanSquaredError(input_cyc, gt_x)
L_l2_y = lbann.MeanSquaredError(output_fake, y_pred_fwd)
L_cyc_y = lbann.MeanSquaredError(output_cyc, y_pred_fwd)
#@todo slice here to separate scalar from image
img_sca_loss = lbann.MeanSquaredError(y_image_re, gt_y)
#L_cyc = L_cyc_y + L_cyc_x
L_cyc = lbann.Add(L_cyc_y, L_cyc_x)
#loss_gen0 = L_l2_y + lamda_cyc*L_cyc
loss_gen0 = lbann.WeightedSum([L_l2_y, L_cyc],
scaling_factors=f'1 {lambda_cyc}')
loss_gen1 = lbann.WeightedSum([L_l2_x, L_cyc_y],
scaling_factors=f'1 {lambda_cyc}')
#loss_gen1 = L_l2_x + lamda_cyc*L_cyc_y
layers = list(lbann.traverse_layer_graph(input))
weights = set()
#Freeze appropriate (pretrained) weights
pretrained_models = ["wae"] #add macc?
for l in layers:
for idx in range(len(pretrained_models)):
if (l.weights and pretrained_models[idx] in l.name):
for w in range(len(l.weights)):
l.weights[w].optimizer = lbann.NoOptimizer()
weights.update(l.weights)
l2_reg = lbann.L2WeightRegularization(weights=weights, scale=1e-4)
#d_adv_bce = lbann.LayerTerm(d_adv_bce,scale=0.01)
# Setup objective function
obj = lbann.ObjectiveFunction([loss_gen0, loss_gen1, l2_reg])
# Initialize check metric callback
metrics = [
lbann.Metric(img_sca_loss, name='fw_loss'),
lbann.Metric(L_l2_x, name='inverse loss'),
lbann.Metric(L_cyc_y, name='output cycle loss'),
lbann.Metric(L_cyc_x, name='param cycle loss')
]
callbacks = [
lbann.CallbackPrint(),
lbann.CallbackSaveModel(dir=dump_models),
lbann.CallbackLoadModel(dirs=str(pretrained_dir)),
lbann.CallbackTimer()
]
if (ltfb_batch_interval > 0):
callbacks.append(
lbann.CallbackLTFB(batch_interval=ltfb_batch_interval,
metric='fw_loss',
low_score_wins=True,
exchange_hyperparameters=True))
# Construct model
return lbann.Model(num_epochs,
weights=weights,
layers=layers,
metrics=metrics,
objective_function=obj,
callbacks=callbacks)
def construct_model(run_args):
"""Construct LBANN model.
Initial model for ATOM molecular VAE
"""
import lbann
pad_index = run_args.pad_index
assert pad_index is not None
sequence_length = run_args.sequence_length
assert sequence_length is not None, 'should be training seq len + bos + eos'
print("sequence length is {}, which is training sequence len + bos + eos".format(sequence_length))
data_layout = "data_parallel"
# Layer graph
input_ = lbann.Input(data_field='samples',name='inp_data')
#Note input assumes to come from encoder script concatenation of input smiles + z
inp_slice = lbann.Slice(input_, axis=0,
slice_points=str_list([0, sequence_length, sequence_length+run_args.z_dim]),
name='inp_slice')
inp_smile = lbann.Identity(inp_slice,name='inp_smile')
z = lbann.Identity(inp_slice, name='z')
wae_loss= []
input_feature_dims = sequence_length
embedding_size = run_args.embedding_dim
dictionary_size = run_args.num_embeddings
assert embedding_size is not None
assert dictionary_size is not None
save_output = True if run_args.dump_outputs_dir else False
print("save output? ", save_output, "out dir ", run_args.dump_outputs_dir)
#uncomment below for random sampling
#z = lbann.Gaussian(mean=0.0,stdev=1.0, neuron_dims=str(run_args.z_dim))
x = lbann.Slice(inp_smile, slice_points=str_list([0, input_feature_dims]))
x = lbann.Identity(x)
waemodel = molwae.MolWAE(input_feature_dims,
dictionary_size,
embedding_size,
pad_index,run_args.z_dim,save_output=save_output)
x_emb = lbann.Embedding(
x,
num_embeddings=waemodel.dictionary_size,
embedding_dim=waemodel.embedding_size,
name='emb',
weights=waemodel.emb_weights
)
pred, arg_max = waemodel.forward_decoder(x_emb,z)
recon = waemodel.compute_loss(x, pred)
wae_loss.append(recon)
layers = list(lbann.traverse_layer_graph(input_))
# Setup objective function
weights = set()
for l in layers:
weights.update(l.weights)
#l2_reg = lbann.L2WeightRegularization(weights=weights, scale=1e-4)
#wae_loss.append(l2_reg)
print("LEN wae loss ", len(wae_loss))
obj = lbann.ObjectiveFunction(wae_loss)
# Initialize check metric callback
metrics = [lbann.Metric(recon, name='recon')]
callbacks = [lbann.CallbackPrint(),
lbann.CallbackTimer()]
#Dump output (activation) for post processing
pred_tensor = lbann.Concatenation(arg_max, name='pred_tensor')
conc_out = lbann.Concatenation([input_,pred_tensor], name='conc_out')
callbacks.append(lbann.CallbackDumpOutputs(batch_interval=run_args.dump_outputs_interval,
execution_modes='test',
directory=run_args.dump_outputs_dir,
layers=f'{conc_out.name}'))
# Construct model
return lbann.Model(run_args.num_epochs,
weights=weights,
layers=layers,
objective_function=obj,
metrics=metrics,
callbacks=callbacks)
_reader.role = 'train'
_reader.shuffle = True
_reader.percent_of_data_to_use = 1.0
_reader.python.module = 'dataset'
_reader.python.module_dir = current_dir
_reader.python.sample_function = 'get_sample'
_reader.python.num_samples_function = 'num_samples'
_reader.python.sample_dims_function = 'sample_dims'
# ----------------------------------
# Run LBANN
# ----------------------------------
# Create LBANN objects
trainer = lbann.Trainer(mini_batch_size=args.mini_batch_size)
model = lbann.Model(args.num_epochs,
layers=lbann.traverse_layer_graph(input_),
objective_function=loss,
callbacks=[lbann.CallbackPrint(),
lbann.CallbackTimer()])
opt = lbann.SGD(learn_rate=0.01, momentum=0.9)
# Run LBANN
kwargs = lbann.contrib.args.get_scheduler_kwargs(args)
lbann.contrib.launcher.run(trainer,
model,
reader,
opt,
job_name=args.job_name,
**kwargs)
pearson_r_sqrt = lbann.Sqrt(pearson_r_mult, name="pearson_r_sqrt")
eps = lbann.Constant(value=1e-07, hint_layer=pearson_r_sqrt)
pearson_r = lbann.Divide(
[pearson_r_cov, lbann.Add(pearson_r_sqrt, eps)], name="pearson_r")
metrics = [lbann.Metric(mse, name='mse')]
metrics.append(lbann.Metric(pearson_r, name='pearson_r'))
callbacks = [lbann.CallbackPrint(), lbann.CallbackTimer()]
layers = list(lbann.traverse_layer_graph([images, responses]))
model = lbann.Model(args.num_epochs,
layers=layers,
metrics=metrics,
objective_function=mse,
callbacks=callbacks)
# Load data reader from prototext
data_reader_proto = lbann.lbann_pb2.LbannPB()
with open(data_reader_prototext, 'r') as f:
txtf.Merge(f.read(), data_reader_proto)
data_reader_proto = data_reader_proto.data_reader
# Setup trainer
trainer = lbann.Trainer(mini_batch_size=args.mini_batch_size)
# Setup optimizer
opt = lbann.Adam(learn_rate=0.0002, beta1=0.9, beta2=0.99, eps=1e-8)
),
lbann.CallbackGPUMemoryUsage(),
lbann.CallbackDumpOutputs(directory="dump_acts/",
layers="cosmoflow_module1_fc3_instance1 layer3",
execution_modes="test"),
lbann.CallbackProfiler(skip_init=True)
]
# ----------------------------------
# Setup experiment
# ----------------------------------
# Setup model
model = lbann.Model(args.mini_batch_size,
args.epochs,
layers=lbann.traverse_layer_graph(input),
objective_function=loss,
metrics=metrics,
callbacks=callbacks)
# Setup optimizer
opt = lbann.Adam(learn_rate=args.learn_rate, beta1=0.9, beta2=0.99, eps=1e-8)
# Setup data reader
data_reader_proto = create_data_reader(args.train_path, args.val_path,
args.test_path)
# ----------------------------------
# Run experiment
# ----------------------------------
# Note: Use `lbann.run` instead for non-LC systems.
mini_batch_size=args.mini_batch_size,
num_parallel_readers=0,
)
callbacks = [
lbann.CallbackPrint(),
lbann.CallbackTimer(),
lbann.CallbackDumpWeights(
directory='embeddings',
epoch_interval=num_epochs,
format='distributed_binary',
),
]
model = lbann.Model(
num_epochs,
layers=lbann.traverse_layer_graph(input_),
objective_function=obj,
metrics=metrics,
callbacks=callbacks,
)
# Create batch script
kwargs = lbann.contrib.args.get_scheduler_kwargs(args)
script = lbann.contrib.launcher.make_batch_script(
job_name=args.job_name,
work_dir=args.work_dir,
environment={'LBANN_NODE2VEC_CONFIG_FILE': config_file},
**kwargs,
)
# Preprocess graph data with HavoqGT if needed
if not args.offline_walks:
obj = lbann.ObjectiveFunction([layer_term1, layer_term2, l2_reg])
# Metrics
metrics = [lbann.Metric(mean_squared_error, name="mean squared error")]
# Callbacks
callbacks = [
lbann.CallbackPrint(),
lbann.CallbackTimer(),
lbann.CallbackSaveImages(layers="image reconstruction", image_format="jpg")
]
# Setup Model
model = lbann.Model(args.num_epochs,
layers=layer_list,
objective_function=obj,
metrics=metrics,
callbacks=callbacks,
summary_dir=".")
# Setup optimizer
opt = lbann.contrib.args.create_optimizer(args)
# Setup data reader
data_reader_prefix = 'data_reader_mnist'
if args.data_reader == "default" or args.data_reader == "mnist":
data_reader_file = data_reader_prefix + '.prototext'
elif args.data_reader == "numpy_npz_int16":
data_reader_file = data_reader_prefix + '_numpy_npz_int16.prototext'
else:
raise InvalidOption(
'Data reader selection \"' + args.data_reader +