Hello, Tiago
Thanks for the quick reply.
Here is a small example to reproduce the problem
#!/usr/bin/env python2
# -*- coding: utf-8 -*-
import multiprocess as mp
import graph_tool.all as gt
from numpy import *
import multiprocess as mp
import graph_tool.all as gt
import numpy as np
g = gt.price_network(20, m = 2, directed = False)
valid_paths = g.new_vertex_property("object")
g.vertex_properties["valid_paths"] = valid_paths
Cloudlet = []
Gateway = []
for v in g.vertices():
if np.random.rand() > 0.5:
Cloudlet.append(v)
else:
Gateway.append(v)
pool = mp.Pool(processes=4)
for v in Gateway:
valid_paths[v] = pool.map(lambda x: gt.all_shortest_paths(g = g, source
= g.vertex_index[v], target = x),[g.vertex_index[c] for c in Cloudlet])
Now, the python compiler says,
MaybeEncodingError: Error sending result:
'[<graph_tool.libgraph_tool_core.CoroGenerator object at 0x7f344b5f4f80>]'.
Reason: 'RuntimeError('Pickling of
"graph_tool.libgraph_tool_core.CoroGenerator" instances is not enabled
(http://www.boost.org/libs/python/doc/v2/pickle.html)',)'
The version of graph-tool is 2.25
Best regards,
Boxi
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