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Subject: [OMPI devel] Ticket #1982 - Fortran MPI_IN_PLACE issue
From: David Gunter (dog_at_[hidden])
Date: 2009-09-22 10:05:16

I've been playing around with Jeff's "bogus" tarball and I, too, see
it fail on OS X. If I make the following changes it works perfectly:


1) replace -fno-common with -fcommon
2) add -flat_namespace as part of the arguments for creating shared

After that, things work fine:

(dog_at_domdechant 63%) main
  Fortran MPI_BOTTOM is 93
Assigning C variables
MPI_SEND_F: This is BOTTOM: 0x2040 == (0x6020/17, 0x6024/18,
0x2040/19, 0x602c/20)
  Fortran MPI_BOTTOM is 19
  Fortran MPI_BOTTOM is 32
MPI_SEND_F: This is BOTTOM: 0x2040 == (0x6020/17, 0x6024/18,
0x2040/32, 0x602c/20)
  Fortran MPI_BOTTOM is 32

I still don't see what the problem is for the two different versions
of OMPI are.

OSX 10.5.8, GCC 4.4.1, most recent libtool, autoconf, automake and m4.


David Gunter
HPC-3: Parallel Tools Team
Los Alamos National Laboratory