[bugfix] Fix a bunch of examples to be compatible with dgl 0.5 (#1957)

* upd

* upd

* upd

* upd

* upd

* upd

* fix pinsage also

* upd

* upd

* upd
Co-authored-by: Ubuntu <ubuntu@ip-172-31-29-3.us-east-2.compute.internal>
Co-authored-by: Quan Gan <coin2028@hotmail.com>
Co-authored-by: Jinjing Zhou <VoVAllen@users.noreply.github.com>

examples/mxnet/gcmc/model.py

@@ -220,7 +220,7 @@ class BiDecoder(Block):
         for i in range(self._num_basis_functions):
             graph.nodes['user'].data['h'] = F.dot(ufeat, self.Ps[i].data())
             graph.apply_edges(fn.u_dot_v('h', 'h', 'sr'))
-            basis_out.append(graph.edata['sr'].expand_dims(1))
+            basis_out.append(graph.edata['sr'])
         out = F.concat(*basis_out, dim=1)
         out = self.rate_out(out)
         return out

examples/mxnet/gcn/train.py

@@ -36,7 +36,7 @@ def main(args):
     else:
         cuda = True
         ctx = mx.gpu(args.gpu)
-        g = g.to(ctx)
+        g = g.int().to(ctx)
 
     features = g.ndata['feat']
     labels = mx.nd.array(g.ndata['label'], dtype="float32", ctx=ctx)

examples/mxnet/graphsage/main.py

@@ -69,7 +69,7 @@ def main(args):
     else:
         cuda = True
         ctx = mx.gpu(args.gpu)
-        g = g.to(ctx)
+        g = g.int().to(ctx)
 
     features = g.ndata['feat']
     labels = mx.nd.array(g.ndata['label'], dtype="float32", ctx=ctx)
@@ -164,4 +164,4 @@ if __name__ == '__main__':
     args = parser.parse_args()
     print(args)
 
-    main(args)
+    main(args)
\ No newline at end of file

examples/mxnet/sgc/sgc.py

@@ -39,7 +39,7 @@ def main(args):
     else:
         cuda = True
         ctx = mx.gpu(args.gpu)
-        g = g.to(ctx)
+        g = g.int().to(ctx)
 
     features = g.ndata['feat']
     labels = mx.nd.array(g.ndata['label'], dtype="float32", ctx=ctx)
@@ -123,4 +123,4 @@ if __name__ == '__main__':
     args = parser.parse_args()
     print(args)
 
-    main(args)
+    main(args)
\ No newline at end of file

examples/pytorch/cluster_gcn/cluster_gcn.py

@@ -11,7 +11,6 @@ import torch.nn as nn
 import torch.nn.functional as F
 import dgl
 from dgl.data import register_data_args
-from torch.utils.tensorboard import SummaryWriter
 
 from modules import GraphSAGE
 from sampler import ClusterIter
@@ -84,7 +83,7 @@ def main(args):
         torch.cuda.set_device(args.gpu)
         val_mask = val_mask.cuda()
         test_mask = test_mask.cuda()
-        g = g.to(args.gpu)
+        g = g.int().to(args.gpu)
 
     print('labels shape:', g.ndata['label'].shape)
     print("features shape, ", g.ndata['feat'].shape)
@@ -102,7 +101,6 @@ def main(args):
 
     # logger and so on
     log_dir = save_log_dir(args)
-    writer = SummaryWriter(log_dir)
     logger = Logger(os.path.join(log_dir, 'loggings'))
     logger.write(args)
 
@@ -148,8 +146,6 @@ def main(args):
             if j % args.log_every == 0:
                 print(f"epoch:{epoch}/{args.n_epochs}, Iteration {j}/"
                       f"{len(cluster_iterator)}:training loss", loss.item())
-                writer.add_scalar('train/loss', loss.item(),
-                                  global_step=j + epoch * len(cluster_iterator))
         print("current memory:",
               torch.cuda.memory_allocated(device=pred.device) / 1024 / 1024)
 
@@ -164,8 +160,6 @@ def main(args):
                 print('new best val f1:', best_f1)
                 torch.save(model.state_dict(), os.path.join(
                     log_dir, 'best_model.pkl'))
-            writer.add_scalar('val/f1-mic', val_f1_mic, global_step=epoch)
-            writer.add_scalar('val/f1-mac', val_f1_mac, global_step=epoch)
 
     end_time = time.time()
     print(f'training using time {start_time-end_time}')
@@ -177,8 +171,6 @@ def main(args):
     test_f1_mic, test_f1_mac = evaluate(
         model, g, labels, test_mask, multitask)
     print("Test F1-mic{:.4f}, Test F1-mac{:.4f}". format(test_f1_mic, test_f1_mac))
-    writer.add_scalar('test/f1-mic', test_f1_mic)
-    writer.add_scalar('test/f1-mac', test_f1_mac)
 
 if __name__ == '__main__':
     parser = argparse.ArgumentParser(description='GCN')

examples/pytorch/gat/train.py

@@ -53,7 +53,7 @@ def main(args):
         cuda = False
     else:
         cuda = True
-        g = g.to(args.gpu)
+        g = g.int().to(args.gpu)
 
     features = g.ndata['feat']
     labels = g.ndata['label']

examples/pytorch/gat/train_ppi.py

@@ -60,7 +60,7 @@ def main(args):
     g = train_dataset[0]
     n_classes = train_dataset.num_labels
     num_feats = g.ndata['feat'].shape[1]
-    g = g.to(device)
+    g = g.int().to(device)
     heads = ([args.num_heads] * args.num_layers) + [args.num_out_heads]
     # define the model
     model = GAT(g,
@@ -117,12 +117,9 @@ def main(args):
                 if cur_step == patience:
                     break
     test_score_list = []
-    for batch, test_data in enumerate(test_dataloader):
-        subgraph, feats, labels = test_data
+    for batch, subgraph in enumerate(test_dataloader):
         subgraph = subgraph.to(device)
-        feats = feats.to(device)
-        labels = labels.to(device)
-        test_score_list.append(evaluate(feats, model, subgraph, labels.float(), loss_fcn)[0])
+        test_score_list.append(evaluate(subgraph.ndata['feat'], model, subgraph, subgraph.ndata['label'], loss_fcn))
     print("Test F1-Score: {:.4f}".format(np.array(test_score_list).mean()))
 
 if __name__ == '__main__':

examples/pytorch/gcmc/README.md

@@ -24,7 +24,6 @@ ml-100k, no feature
 python3 train.py --data_name=ml-100k --use_one_hot_fea --gcn_agg_accum=stack
 ```
 Results: RMSE=0.9088 (0.910 reported)
-Speed: 0.0410s/epoch (vanilla implementation: 0.1008s/epoch)
 
 ml-100k, with feature
 ```bash
@@ -37,7 +36,6 @@ ml-1m, no feature
 python3 train.py --data_name=ml-1m --gcn_agg_accum=sum --use_one_hot_fea
 ```
 Results: RMSE=0.8377 (0.832 reported)
-Speed: 0.0844s/epoch (vanilla implementation: 1.538s/epoch)
 
 ml-10m, no feature
 ```bash
@@ -46,7 +44,6 @@ python3 train.py --data_name=ml-10m --gcn_agg_accum=stack --gcn_dropout=0.3 \
                                  --use_one_hot_fea --gen_r_num_basis_func=4
 ```
 Results: RMSE=0.7800 (0.777 reported)
-Speed: 1.1982/epoch (vanilla implementation: OOM)
 Testbed: EC2 p3.2xlarge instance(Amazon Linux 2)
 
 ### Train with minibatch on a single GPU
@@ -67,8 +64,6 @@ python3 train_sampling.py --data_name=ml-100k \
                           --gpu 0 
 ```
 Results: RMSE=0.9380
-Speed: 1.059s/epoch (Run with 70 epoches)
-Speed: 1.046s/epoch (mix_cpu_gpu)
 
 ml-100k, with feature
 ```bash
@@ -97,8 +92,6 @@ python3 train_sampling.py --data_name=ml-1m \
                           --gpu 0
 ```
 Results: RMSE=0.8632
-Speed: 7.852s/epoch (Run with 60 epoches)
-Speed: 7.788s/epoch (mix_cpu_gpu)
 
 ml-10m, no feature
 ```bash
@@ -126,8 +119,6 @@ python3 train_sampling.py --data_name=ml-10m \
                           --gpu 0
 ```
 Results: RMSE=0.8050
-Speed: 394.304s/epoch (Run with 60 epoches)
-Speed: 408.749s/epoch (mix_cpu_gpu)
 Testbed: EC2 p3.2xlarge instance
 
 ### Train with minibatch on multi-GPU
@@ -151,8 +142,6 @@ python train_sampling.py --data_name=ml-100k \
                          --gpu 0,1,2,3,4,5,6,7
 ```
 Result: RMSE=0.9397
-Speed: 1.202s/epoch (Run with only 30 epoches) 
-Speed: 1.245/epoch (mix_cpu_gpu)
 
 ml-100k, with feature
 ```bash
@@ -162,7 +151,6 @@ python train_sampling.py --data_name=ml-100k \
                          --gpu 0,1,2,3,4,5,6,7
 ```
 Result: RMSE=0.9655
-Speed:  1.265/epoch (Run with 30 epoches)
 
 ml-1m, no feature
 ```bash
@@ -182,8 +170,6 @@ python train_sampling.py --data_name=ml-1m \
                          --gpu 0,1,2,3,4,5,6,7
 ```
 Results: RMSE=0.8621
-Speed: 11.612s/epoch (Run with 40 epoches)
-Speed: 12.483s/epoch (mix_cpu_gpu)
 
 ml-10m, no feature
 ```bash
@@ -211,8 +197,6 @@ python train_sampling.py --data_name=ml-10m \
                          --gpu 0,1,2,3,4,5,6,7
 ```
 Results: RMSE=0.8084
-Speed: 632.868s/epoch (Run with 30 epoches)
-Speed: 633.397s/epoch (mix_cpu_gpu)
 Testbed: EC2 p3.16xlarge instance
 
 ### Train with minibatch on CPU
@@ -223,5 +207,4 @@ python3 train_sampling.py --data_name=ml-100k \
                           --gcn_agg_accum=stack \
                           --gpu -1
 ```
-Speed 1.591s/epoch
 Testbed: EC2 r5.xlarge instance

examples/pytorch/gcmc/model.py

@@ -340,7 +340,7 @@ class BiDecoder(nn.Module):
             for i in range(self._num_basis):
                 graph.nodes['user'].data['h'] = ufeat @ self.Ps[i]
                 graph.apply_edges(fn.u_dot_v('h', 'h', 'sr'))
-                basis_out.append(graph.edata['sr'].unsqueeze(1))
+                basis_out.append(graph.edata['sr'])
             out = th.cat(basis_out, dim=1)
             out = self.combine_basis(out)
         return out

examples/pytorch/gcmc/train.py

@@ -105,12 +105,12 @@ def train(args):
     count_num = 0
     count_loss = 0
 
-    dataset.train_enc_graph = dataset.train_enc_graph.to(args.device)
-    dataset.train_dec_graph = dataset.train_dec_graph.to(args.device)
+    dataset.train_enc_graph = dataset.train_enc_graph.int().to(args.device)
+    dataset.train_dec_graph = dataset.train_dec_graph.int().to(args.device)
     dataset.valid_enc_graph = dataset.train_enc_graph
-    dataset.valid_dec_graph = dataset.valid_dec_graph.to(args.device)
-    dataset.test_enc_graph = dataset.test_enc_graph.to(args.device)
-    dataset.test_dec_graph = dataset.test_dec_graph.to(args.device)
+    dataset.valid_dec_graph = dataset.valid_dec_graph.int().to(args.device)
+    dataset.test_enc_graph = dataset.test_enc_graph.int().to(args.device)
+    dataset.test_dec_graph = dataset.test_dec_graph.int().to(args.device)
 
     print("Start training ...")
     dur = []

examples/pytorch/gcn/train.py

@@ -38,7 +38,7 @@ def main(args):
         cuda = False
     else:
         cuda = True
-        g = g.to(args.gpu)
+        g = g.int().to(args.gpu)
 
     features = g.ndata['feat']
     labels = g.ndata['label']

examples/pytorch/graphsage/train_cv.py

@@ -109,7 +109,7 @@ class SAGE(nn.Module):
                 end = start + batch_size
                 batch_nodes = nodes[start:end]
                 block = dgl.to_block(dgl.in_subgraph(g, batch_nodes), batch_nodes)
-                block = block.to(device)
+                block = block.int().to(device)
                 induced_nodes = block.srcdata[dgl.NID]
 
                 h = x[induced_nodes].to(device)
@@ -188,7 +188,7 @@ def load_subtensor(g, labels, blocks, hist_blocks, dev_id, aggregation_on_device
             hist_block = hist_block.to(dev_id)
         hist_block.update_all(fn.copy_u('hist', 'm'), fn.mean('m', 'agg_hist'))
 
-        block = block.to(dev_id)
+        block = block.int().to(dev_id)
         if not aggregation_on_device:
             hist_block = hist_block.to(dev_id)
         block.dstdata['agg_hist'] = hist_block.dstdata['agg_hist']
@@ -220,8 +220,8 @@ def run(args, dev_id, data):
 
     # Unpack data
     train_mask, val_mask, in_feats, labels, n_classes, g = data
-    train_nid = train_mask.nonzero()[:, 0]
-    val_nid = val_mask.nonzero()[:, 0]
+    train_nid = train_mask.nonzero().squeeze()
+    val_nid = val_mask.nonzero().squeeze()
 
     # Create sampler
     sampler = NeighborSampler(g, [int(_) for _ in args.fan_out.split(',')])

examples/pytorch/graphsage/train_cv_multi_gpu.py

@@ -262,8 +262,8 @@ def run(proc_id, n_gpus, args, devices, data):
 
     # Unpack data
     train_mask, val_mask, in_feats, labels, n_classes, g = data
-    train_nid = train_mask.nonzero()[:, 0]
-    val_nid = val_mask.nonzero()[:, 0]
+    train_nid = train_mask.nonzero().squeeze()
+    val_nid = val_mask.nonzero().squeeze()
 
     # Split train_nid
     train_nid = th.split(train_nid, math.ceil(len(train_nid) // n_gpus))[proc_id]

examples/pytorch/graphsage/train_full.py

@@ -11,6 +11,7 @@ import networkx as nx
 import torch
 import torch.nn as nn
 import torch.nn.functional as F
+import dgl
 from dgl import DGLGraph
 from dgl.data import register_data_args, load_data
 from dgl.nn.pytorch.conv import SAGEConv
@@ -48,12 +49,12 @@ class GraphSAGE(nn.Module):
         return h
 
 
-def evaluate(model, graph, features, labels, mask):
+def evaluate(model, graph, features, labels, nid):
     model.eval()
     with torch.no_grad():
         logits = model(graph, features)
-        logits = logits[mask]
-        labels = labels[mask]
+        logits = logits[nid]
+        labels = labels[nid]
         _, indices = torch.max(logits, dim=1)
         correct = torch.sum(indices == labels)
         return correct.item() * 1.0 / len(labels)
@@ -61,18 +62,14 @@ def evaluate(model, graph, features, labels, mask):
 def main(args):
     # load and preprocess dataset
     data = load_data(args)
-    features = torch.FloatTensor(data.features)
-    labels = torch.LongTensor(data.labels)
-    if hasattr(torch, 'BoolTensor'):
-        train_mask = torch.BoolTensor(data.train_mask)
-        val_mask = torch.BoolTensor(data.val_mask)
-        test_mask = torch.BoolTensor(data.test_mask)
-    else:
-        train_mask = torch.ByteTensor(data.train_mask)
-        val_mask = torch.ByteTensor(data.val_mask)
-        test_mask = torch.ByteTensor(data.test_mask)
+    g = data[0]
+    features = g.ndata['feat']
+    labels = g.ndata['label']
+    train_mask = g.ndata['train_mask']
+    val_mask = g.ndata['val_mask']
+    test_mask = g.ndata['test_mask']
     in_feats = features.shape[1]
-    n_classes = data.num_labels
+    n_classes = data.num_classes
     n_edges = data.graph.number_of_edges()
     print("""----Data statistics------'
       #Edges %d
@@ -97,11 +94,15 @@ def main(args):
         test_mask = test_mask.cuda()
         print("use cuda:", args.gpu)
 
+    train_nid = train_mask.nonzero().squeeze()
+    val_nid = val_mask.nonzero().squeeze()
+    test_nid = test_mask.nonzero().squeeze()
+
     # graph preprocess and calculate normalization factor
-    g = data.graph
-    g.remove_edges_from(nx.selfloop_edges(g))
-    g = DGLGraph(g)
+    g = dgl.remove_self_loop(g)
     n_edges = g.number_of_edges()
+    if cuda:
+        g = g.int().to(args.gpu)
 
     # create GraphSAGE model
     model = GraphSAGE(in_feats,
@@ -126,7 +127,7 @@ def main(args):
             t0 = time.time()
         # forward
         logits = model(g, features)
-        loss = F.cross_entropy(logits[train_mask], labels[train_mask])
+        loss = F.cross_entropy(logits[train_nid], labels[train_nid])
 
         optimizer.zero_grad()
         loss.backward()
@@ -135,13 +136,13 @@ def main(args):
         if epoch >= 3:
             dur.append(time.time() - t0)
 
-        acc = evaluate(model, g, features, labels, val_mask)
+        acc = evaluate(model, g, features, labels, val_nid)
         print("Epoch {:05d} | Time(s) {:.4f} | Loss {:.4f} | Accuracy {:.4f} | "
               "ETputs(KTEPS) {:.2f}".format(epoch, np.mean(dur), loss.item(),
                                             acc, n_edges / np.mean(dur) / 1000))
 
     print()
-    acc = evaluate(model, g, features, labels, test_mask)
+    acc = evaluate(model, g, features, labels, test_nid)
     print("Test Accuracy {:.4f}".format(acc))
 
 

examples/pytorch/graphsage/train_sampling.py

@@ -77,7 +77,7 @@ class SAGE(nn.Module):
             for input_nodes, output_nodes, blocks in tqdm.tqdm(dataloader):
                 block = blocks[0]
 
-                block = block.to(device)
+                block = block.int().to(device)
                 h = x[input_nodes].to(device)
                 h = layer(block, h)
                 if l != len(self.layers) - 1:
@@ -159,7 +159,7 @@ def run(args, device, data):
         for step, (input_nodes, seeds, blocks) in enumerate(dataloader):
             # Load the input features as well as output labels
             batch_inputs, batch_labels = load_subtensor(train_g, seeds, input_nodes, device)
-            blocks = [block.to(device) for block in blocks]
+            blocks = [block.int().to(device) for block in blocks]
 
             # Compute loss and prediction
             batch_pred = model(blocks, batch_inputs)
@@ -202,7 +202,7 @@ if __name__ == '__main__':
     argparser.add_argument('--eval-every', type=int, default=5)
     argparser.add_argument('--lr', type=float, default=0.003)
     argparser.add_argument('--dropout', type=float, default=0.5)
-    argparser.add_argument('--num-workers', type=int, default=0,
+    argparser.add_argument('--num-workers', type=int, default=4,
         help="Number of sampling processes. Use 0 for no extra process.")
     argparser.add_argument('--inductive', action='store_true',
         help="Inductive learning setting")
@@ -222,8 +222,6 @@ if __name__ == '__main__':
 
     in_feats = g.ndata['features'].shape[1]
 
-    g = dgl.as_heterograph(g)
-
     if args.inductive:
         train_g, val_g, test_g = inductive_split(g)
     else:

examples/pytorch/graphsage/train_sampling_multi_gpu.py

@@ -79,7 +79,7 @@ class SAGE(nn.Module):
             for input_nodes, output_nodes, blocks in tqdm.tqdm(dataloader):
                 block = blocks[0]
 
-                block = block.to(device)
+                block = block.int().to(device)
                 h = x[input_nodes].to(device)
                 h = layer(block, h)
                 if l != len(self.layers) - 1:
@@ -141,9 +141,9 @@ def run(proc_id, n_gpus, args, devices, data):
     train_mask = train_g.ndata['train_mask']
     val_mask = val_g.ndata['val_mask']
     test_mask = ~(test_g.ndata['train_mask'] | test_g.ndata['val_mask'])
-    train_nid = train_mask.nonzero()[:, 0]
-    val_nid = val_mask.nonzero()[:, 0]
-    test_nid = test_mask.nonzero()[:, 0]
+    train_nid = train_mask.nonzero().squeeze()
+    val_nid = val_mask.nonzero().squeeze()
+    test_nid = test_mask.nonzero().squeeze()
 
     # Split train_nid
     train_nid = th.split(train_nid, math.ceil(len(train_nid) // n_gpus))[proc_id]
@@ -183,7 +183,7 @@ def run(proc_id, n_gpus, args, devices, data):
 
             # Load the input features as well as output labels
             batch_inputs, batch_labels = load_subtensor(train_g, train_g.ndata['labels'], seeds, input_nodes, dev_id)
-            blocks = [block.to(dev_id) for block in blocks]
+            blocks = [block.int().to(dev_id) for block in blocks]
             # Compute loss and prediction
             batch_pred = model(blocks, batch_inputs)
             loss = loss_fcn(batch_pred, batch_labels)

examples/pytorch/graphsage/train_sampling_unsupervised.py

@@ -82,7 +82,7 @@ class NeighborSampler(object):
             block = dgl.to_block(frontier, seeds)
 
             # Pre-generate CSR format that it can be used in training directly
-            block.in_degree(0)
+            block.create_format_()
             # Obtain the seed nodes for next layer.
             seeds = block.srcdata[dgl.NID]
 
@@ -149,7 +149,7 @@ class SAGE(nn.Module):
                 end = start + batch_size
                 batch_nodes = nodes[start:end]
                 block = dgl.to_block(dgl.in_subgraph(g, batch_nodes), batch_nodes)
-                block = block.to(device)
+                block = block.int().to(device)
                 input_nodes = block.srcdata[dgl.NID]
 
                 h = x[input_nodes].to(device)
@@ -184,23 +184,22 @@ def compute_acc(emb, labels, train_nids, val_nids, test_nids):
     Compute the accuracy of prediction given the labels.
     """
     emb = emb.cpu().numpy()
+    labels = labels.cpu().numpy()
     train_nids = train_nids.cpu().numpy()
-    train_labels = labels[train_nids].cpu().numpy()
+    train_labels = labels[train_nids]
     val_nids = val_nids.cpu().numpy()
-    val_labels = labels[val_nids].cpu().numpy()
+    val_labels = labels[val_nids]
     test_nids = test_nids.cpu().numpy()
-    test_labels = labels[test_nids].cpu().numpy()
+    test_labels = labels[test_nids]
 
     emb = (emb - emb.mean(0, keepdims=True)) / emb.std(0, keepdims=True)
 
     lr = lm.LogisticRegression(multi_class='multinomial', max_iter=10000)
-    lr.fit(emb[train_nids], labels[train_nids])
+    lr.fit(emb[train_nids], train_labels)
 
     pred = lr.predict(emb)
-    f1_micro_eval = skm.f1_score(labels[val_nids], pred[val_nids], average='micro')
-    f1_micro_test = skm.f1_score(labels[test_nids], pred[test_nids], average='micro')
-    f1_macro_eval = skm.f1_score(labels[val_nids], pred[val_nids], average='macro')
-    f1_macro_test = skm.f1_score(labels[test_nids], pred[test_nids], average='macro')
+    f1_micro_eval = skm.f1_score(val_labels, pred[val_nids], average='micro')
+    f1_micro_test = skm.f1_score(test_labels, pred[test_nids], average='micro')
     return f1_micro_eval, f1_micro_test
 
 def evaluate(model, g, inputs, labels, train_nids, val_nids, test_nids, batch_size, device):
@@ -238,9 +237,13 @@ def run(proc_id, n_gpus, args, devices, data):
                                           rank=proc_id)
     train_mask, val_mask, test_mask, in_feats, labels, n_classes, g = data
 
-    train_nid = th.LongTensor(np.nonzero(train_mask)[0])
-    val_nid = th.LongTensor(np.nonzero(val_mask)[0])
-    test_nid = th.LongTensor(np.nonzero(test_mask)[0])
+    train_nid = th.LongTensor(np.nonzero(train_mask)).squeeze()
+    val_nid = th.LongTensor(np.nonzero(val_mask)).squeeze()
+    test_nid = th.LongTensor(np.nonzero(test_mask)).squeeze()
+
+    #train_nid = th.LongTensor(np.nonzero(train_mask)[0])
+    #val_nid = th.LongTensor(np.nonzero(val_mask)[0])
+    #test_nid = th.LongTensor(np.nonzero(test_mask)[0])
 
     # Create sampler
     sampler = NeighborSampler(g, [int(fanout) for fanout in args.fan_out.split(',')], args.num_negs, args.neg_share)
@@ -296,7 +299,7 @@ def run(proc_id, n_gpus, args, devices, data):
 
             pos_graph = pos_graph.to(device)
             neg_graph = neg_graph.to(device)
-            blocks = [block.to(device) for block in blocks]
+            blocks = [block.int().to(device) for block in blocks]
             # Compute loss and prediction
             batch_pred = model(blocks, batch_inputs)
             loss = loss_fcn(batch_pred, pos_graph, neg_graph)
@@ -338,7 +341,9 @@ def main(args, devices):
     labels = g.ndata['label']
     train_mask = g.ndata['train_mask']
     val_mask = g.ndata['val_mask']
+    test_mask = g.ndata['test_mask']
     g.ndata['features'] = features
+    g.create_format_()
     # Pack data
     data = train_mask, val_mask, test_mask, in_feats, labels, n_classes, g
 
@@ -357,8 +362,6 @@ def main(args, devices):
         for p in procs:
             p.join()
 
-    run(args, device, data)
-
 
 if __name__ == '__main__':
     argparser = argparse.ArgumentParser("multi-gpu training")

examples/pytorch/graphwriter/README.md

@@ -21,7 +21,7 @@ In this example we implement the GraphWriter, [Text Generation from Knowledge Gr
 | |BLEU|METEOR| training time per epoch|
 |-|-|-|-|
 |Author's implementation|14.3+-1.01| 18.8+-0.28| 1970s|
-|DGL implementation|14.31+-0.34|19.74+-0.69| 1192s|
+|DGL implementation|14.31+-0.34|19.74+-0.69| 1080s|
 
 We use the author's code for the speed test, and our testbed is V100 GPU.
 

examples/pytorch/graphwriter/modules.py

@@ -121,8 +121,8 @@ class GAT(nn.Module):
         # compute edge attention
         graph.apply_edges(fn.u_dot_v('el', 'er', 'e'))
         e =  graph.edata.pop('e') / math.sqrt(self._out_feats * self._num_heads)
-        graph.edata['a'] = edge_softmax(graph, e).unsqueeze(-1)
-       # message passing
+        graph.edata['a'] = edge_softmax(graph, e)
+        # message passing
         graph.update_all(fn.u_mul_e('ft', 'a', 'm'),
                          fn.sum('m', 'ft2'))
         rst = graph.ndata['ft2']

examples/pytorch/ogb/cluster-sage/sampler.py

@@ -67,4 +67,5 @@ def subgraph_collate_fn(g, batch):
     g1.ndata['feat'] = g.ndata['feat'][nid]
     g1.ndata['labels'] = g.ndata['labels'][nid]
     g1.ndata['train_mask'] = g.ndata['train_mask'][nid]
+    g1.create_format_()
     return g1