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parser.add_argument('--scheduler', action='store_true', default=False,
help='use a scheduler to reduce learning rate')
# Log settings.
parser.add_argument('--save_appendix', type=str, default='',
help='appendix to save results')
parser.add_argument('--log_steps', type=int, default=10,
help='save model checkpoint every x epochs')
parser.add_argument('--continue_from', type=int, default=None,
help="from which epoch's checkpoint to continue training")
parser.add_argument('--run_from', type=int, default=1,
help="from which run (of multiple repeated experiments) to start")
# Visualization settings.
parser.add_argument('--visualize_all', action='store_true', default=False,
help='visualize all graphs in dataset sequentially')
parser.add_argument('--visualize_test', action='store_true', default=False,
help='visualize test graphs by loss')
parser.add_argument('--pre_visualize', action='store_true', default=False)
args = parser.parse_args()
device = torch.device("cuda") if torch.cuda.is_available() else torch.device("cpu")
# Save directory.
if args.save_appendix == '':
args.save_appendix = '_' + time.strftime("%Y%m%d%H%M%S")
args.res_dir = 'results/{}{}'.format(args.dataset, args.save_appendix)
print('Results will be saved in ' + args.res_dir)
if not os.path.exists(args.res_dir):
os.makedirs(args.res_dir)
# Backup python files.
copy('run_ogb_mol.py', args.res_dir)
copy('ogb_mol_gnn.py', args.res_dir)
copy('utils.py', args.res_dir)
log_file = os.path.join(args.res_dir, 'log.txt')
# Save command line input.
cmd_input = 'python ' + ' '.join(sys.argv) + '\n'
with open(os.path.join(args.res_dir, 'cmd_input.txt'), 'a') as f:
f.write(cmd_input)
print('Command line input: ' + cmd_input + ' is saved.')
with open(log_file, 'a') as f:
f.write('\n' + cmd_input)
# Rooted subgraph extraction for NGNN.
path = 'data/'
pre_transform = None
if args.h is not None:
if type(args.h) == int:
path += '/ngnn_h' + str(args.h)
path += '_' + args.node_label
if args.use_rd:
path += '_rd'
def pre_transform(g):
return create_subgraphs(g, args.h, node_label=args.node_label,
use_rd=args.use_rd)
if args.use_rp is not None:
path += f'_rp{args.use_rp}'
if pre_transform is None:
pre_transform = return_prob(args.use_rp)
else:
pre_transform = Compose([return_prob(args.use_rp), pre_transform])
transform = None
if args.dataset == 'ogbg-ppa': # ppa is too slow to process currently for NGNN
def add_zeros(data):
data.x = torch.zeros(data.num_nodes, dtype=torch.long)
return data
transform = add_zeros
dataset = PygGraphPropPredDataset(
name=args.dataset, root=path, transform=transform, pre_transform=pre_transform,
skip_collate=False)
split_idx = dataset.get_idx_split()
evaluator = Evaluator(args.dataset)
train_loader = DataLoader(dataset[split_idx["train"]], batch_size=args.batch_size,
shuffle=True, num_workers = args.num_workers)
valid_loader = DataLoader(dataset[split_idx["valid"]], batch_size=args.batch_size,
shuffle=False, num_workers = args.num_workers)
test_loader = DataLoader(dataset[split_idx["test"]], batch_size=args.batch_size,
shuffle=False, num_workers = args.num_workers)
if args.pre_visualize:
visualize(dataset, args.res_dir)
kwargs = {
'num_layer': args.num_layer,
'residual': args.residual,
'use_rd': args.use_rd,
'use_rp': args.use_rp,
'adj_dropout': args.adj_dropout,
'subgraph_pooling': args.subgraph_pooling,
'graph_pooling': args.graph_pooling,
}