• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1# Copyright (C) 2006 Douglas Gregor <doug.gregor -at- gmail.com>.
2
3# Use, modification and distribution is subject to the Boost Software
4# License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
5# http://www.boost.org/LICENSE_1_0.txt)
6
7# Test gather() collective.
8
9from __future__ import print_function
10import mpi
11from generators import *
12
13def gather_test(comm, generator, kind, root):
14    if comm.rank == root:
15        print ("Gathering %s to root %d..." % (kind, root)),
16    my_value = generator(comm.rank)
17    result = mpi.gather(comm, my_value, root)
18    if comm.rank == root:
19        for p in range(0, comm.size):
20            assert result[p] == generator(p)
21        print ("OK.")
22    else:
23        assert result == None
24    return
25
26gather_test(mpi.world, int_generator, "integers", 0)
27gather_test(mpi.world, int_generator, "integers", 1)
28gather_test(mpi.world, gps_generator, "GPS positions", 0)
29gather_test(mpi.world, gps_generator, "GPS positions", 1)
30gather_test(mpi.world, string_generator, "strings", 0)
31gather_test(mpi.world, string_generator, "strings", 1)
32gather_test(mpi.world, string_list_generator, "list of strings", 0)
33gather_test(mpi.world, string_list_generator, "list of strings", 1)
34