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Remove global variables #12

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Remove global variables #12

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15 changes: 6 additions & 9 deletions utils/graph_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -34,9 +34,9 @@ def __random_walk__(G, path_length, start, alpha=0, rand=random.Random()):

while len(path) < path_length:
cur = path[-1]
if len(G.neighbors(cur)) > 0:
if G.degree[cur] > 0:
if rand.random() >= alpha:
path.append(rand.choice(G.neighbors(cur)))
path.append(rand.choice(list(G.neighbors(cur))))
else:
path.append(path[0])
else:
Expand Down Expand Up @@ -108,9 +108,9 @@ def load_adjacencylist(file_, undirected=False, chunksize=10000):


def _write_walks_to_disk(args):
num_paths, path_length, alpha, rand, f = args
G = __current_graph
G, num_paths, path_length, alpha, rand, f = args
t_0 = time()
__vertex2str = {v:str(v) for v in G.nodes()}
with open(f, 'w') as fout:
for walk in build_deepwalk_corpus_iter(G=G, num_paths=num_paths, path_length=path_length, alpha=alpha, rand=rand):
fout.write(u"{}\n".format(u" ".join(__vertex2str[v] for v in walk)))
Expand All @@ -129,10 +129,7 @@ def write_walks_to_disk(G, filebase, num_paths, path_length, alpha=0, rand=rando
:param num_workers: number of thread used to execute the job
:return:
'''
global __current_graph
global __vertex2str
__current_graph = G
__vertex2str = {v:str(v) for v in G.nodes()}

files_list = ["{}.{}".format(filebase, str(x)) for x in range(num_paths)]
expected_size = len(G)
args_list = []
Expand All @@ -145,7 +142,7 @@ def write_walks_to_disk(G, filebase, num_paths, path_length, alpha=0, rand=rando

with ProcessPoolExecutor(max_workers=num_workers) as executor:
for size, file_, ppw in zip(executor.map(count_lines, files_list), files_list, paths_per_worker):
args_list.append((ppw, path_length, alpha, random.Random(rand.randint(0, 2**31)), file_))
args_list.append((G, ppw, path_length, alpha, random.Random(rand.randint(0, 2**31)), file_))

with ProcessPoolExecutor(max_workers=num_workers) as executor:
for file_ in executor.map(_write_walks_to_disk, args_list):
Expand Down