from colorama import Fore, Back, Style
+# Pytorch
+
import torch
from torch import optim
from torch.nn import functional as fn
from torchvision import datasets, transforms, utils
+# SVRT
+
from vignette_set import VignetteSet, CompressedVignetteSet
######################################################################
self.conv3 = nn.Conv2d(16, 120, kernel_size=18)
self.fc1 = nn.Linear(120, 84)
self.fc2 = nn.Linear(84, 2)
+ self.name = 'shallownet'
def forward(self, x):
x = fn.relu(fn.max_pool2d(self.conv1(x), kernel_size=2))
x = self.fc2(x)
return x
+######################################################################
+
def train_model(model, train_set):
batch_size = args.batch_size
criterion = nn.CrossEntropyLoss()
for arg in vars(args):
log_string('argument ' + str(arg) + ' ' + str(getattr(args, arg)))
+######################################################################
+
for problem_number in range(1, 24):
- if args.compress_vignettes:
- train_set = CompressedVignetteSet(problem_number, args.nb_train_batches, args.batch_size)
- test_set = CompressedVignetteSet(problem_number, args.nb_test_batches, args.batch_size)
- else:
- train_set = VignetteSet(problem_number, args.nb_train_batches, args.batch_size)
- test_set = VignetteSet(problem_number, args.nb_test_batches, args.batch_size)
model = AfrozeShallowNet()
if torch.cuda.is_available():
model.cuda()
+ model_filename = model.name + '_' + \
+ str(problem_number) + '_' + \
+ str(args.nb_train_batches) + '.param'
+
nb_parameters = 0
- for p in model.parameters():
- nb_parameters += p.numel()
+ for p in model.parameters(): nb_parameters += p.numel()
log_string('nb_parameters {:d}'.format(nb_parameters))
- model_filename = 'model_' + str(problem_number) + '.param'
-
+ need_to_train = False
try:
model.load_state_dict(torch.load(model_filename))
log_string('loaded_model ' + model_filename)
except:
- log_string('training_model')
+ need_to_train = True
+
+ if need_to_train:
+
+ log_string('training_model ' + model_filename)
+
+ t = time.time()
+
+ if args.compress_vignettes:
+ train_set = CompressedVignetteSet(problem_number,
+ args.nb_train_batches, args.batch_size,
+ cuda=torch.cuda.is_available())
+ test_set = CompressedVignetteSet(problem_number,
+ args.nb_test_batches, args.batch_size,
+ cuda=torch.cuda.is_available())
+ else:
+ train_set = VignetteSet(problem_number,
+ args.nb_train_batches, args.batch_size,
+ cuda=torch.cuda.is_available())
+ test_set = VignetteSet(problem_number,
+ args.nb_test_batches, args.batch_size,
+ cuda=torch.cuda.is_available())
+
+ log_string('data_generation {:0.2f} samples / s'.format(
+ (train_set.nb_samples + test_set.nb_samples) / (time.time() - t))
+ )
+
train_model(model, train_set)
torch.save(model.state_dict(), model_filename)
log_string('saved_model ' + model_filename)
- nb_train_errors = nb_errors(model, train_set)
+ nb_train_errors = nb_errors(model, train_set)
- log_string('train_error {:d} {:.02f}% {:d} {:d}'.format(
- problem_number,
- 100 * nb_train_errors / train_set.nb_samples,
- nb_train_errors,
- train_set.nb_samples)
- )
+ log_string('train_error {:d} {:.02f}% {:d} {:d}'.format(
+ problem_number,
+ 100 * nb_train_errors / train_set.nb_samples,
+ nb_train_errors,
+ train_set.nb_samples)
+ )
- nb_test_errors = nb_errors(model, test_set)
+ nb_test_errors = nb_errors(model, test_set)
- log_string('test_error {:d} {:.02f}% {:d} {:d}'.format(
- problem_number,
- 100 * nb_test_errors / test_set.nb_samples,
- nb_test_errors,
- test_set.nb_samples)
- )
+ log_string('test_error {:d} {:.02f}% {:d} {:d}'.format(
+ problem_number,
+ 100 * nb_test_errors / test_set.nb_samples,
+ nb_test_errors,
+ test_set.nb_samples)
+ )
######################################################################