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mpi/test/python/skeleton_content_test.py
Alain O Miniussi d7652823d0 Although single argument print () works in python2, it is still prudent to do have
from __future__ import print_function
as the first line of code in every file.
Thanks to @xnox for the suggestion
2020-06-19 10:17:12 +02:00

77 lines
2.6 KiB
Python

# Copyright (C) 2006 Douglas Gregor <doug.gregor -at- gmail.com>.
# Use, modification and distribution is subject to the Boost Software
# License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
# http://www.boost.org/LICENSE_1_0.txt)
# Test skeleton/content
from __future__ import print_function
import mpi
import skeleton_content
def test_skeleton_and_content(comm, root, manual_broadcast = True):
assert manual_broadcast
# Setup data
list_size = comm.size + 7
original_list = skeleton_content.list_int()
for i in range(0,list_size):
original_list.push_back(i)
if comm.rank == root:
# Broadcast skeleton
print ("Broadcasting integer list skeleton from root %d..." % (root)),
if manual_broadcast:
for p in range(0,comm.size):
if p != comm.rank:
comm.send(p, 0, value = mpi.skeleton(original_list))
print ("OK.")
# Broadcast content
print ("Broadcasting integer list content from root %d..." % (root)),
if manual_broadcast:
for p in range(0,comm.size):
if p != comm.rank:
comm.send(p, 0, value = mpi.get_content(original_list))
print ("OK.")
# Broadcast reversed content
original_list.reverse()
print ("Broadcasting reversed integer list content from root %d..." % (root)),
if manual_broadcast:
for p in range(0,comm.size):
if p != comm.rank:
comm.send(p, 0, value = mpi.get_content(original_list))
print ("OK.")
else:
# Allocate some useless data, to try to get the addresses of
# the underlying lists used later to be different across
# processors.
junk_list = skeleton_content.list_int()
for i in range(0,comm.rank * 3 + 1):
junk_list.push_back(i)
# Receive the skeleton of the list
if manual_broadcast:
transferred_list_skeleton = comm.recv(root, 0)
assert transferred_list_skeleton.object.size == list_size
# Receive the content and check it
transferred_list = transferred_list_skeleton.object
if manual_broadcast:
comm.recv(root, 0, mpi.get_content(transferred_list))
assert transferred_list == original_list
# Receive the content (again) and check it
original_list.reverse()
if manual_broadcast:
comm.recv(root, 0, mpi.get_content(transferred_list))
assert transferred_list == original_list
test_skeleton_and_content(mpi.world, 0)
test_skeleton_and_content(mpi.world, 1)