ompi_info should tell you the current version of Open MPI your path is
pointing to.
Are you sure your path is pointing to the area that the OpenFOAM package
delivered Open MPI into?
--td
On 1/27/2012 5:02 AM, Brett Tully wrote:
Interesting. In the same set of updates, I installed OpenFOAM from
their Ubuntu deb package and it claims to ship with openmpi. I just
downloaded their Third-party source tar and unzipped it to see what
version of openmpi they are using, and it is 1.5.3. However, when I do
man openmpi, or ompi_info, I get the same version as before (1.4.3).
How do I determine for sure what is being included when I compile
something using mpicc?
Thanks,
Brett.
On Thu, Jan 26, 2012 at 10:05 PM, Jeff Squyres <jsquy...@cisco.com
<mailto:jsquy...@cisco.com>> wrote:
What version did you upgrade to? (we don't control the Ubuntu
packaging)
I see a bullet in the soon-to-be-released 1.4.5 release notes:
- Fix obscure cases where MPI_ALLGATHER could crash. Thanks to Andrew
Senin for reporting the problem.
But that would be surprising if this is what fixed your issue,
especially since it's not released yet. :-)
On Jan 26, 2012, at 5:24 AM, Brett Tully wrote:
> As of two days ago, this problem has disappeared and the tests
that I had written and run each night are now passing. Having
looked through the update log of my machine (Ubuntu 11.10) it
appears as though I got a new version of mpi-default-dev
(0.6ubuntu1). I would like to understand this problem in more
detail -- is it possible to see what changed in this update?
> Thanks,
> Brett.
>
>
>
> On Fri, Dec 9, 2011 at 6:43 PM, teng ma <t...@eecs.utk.edu
<mailto:t...@eecs.utk.edu>> wrote:
> I guess your output is from different ranks. YOu can add rank
infor inside print to tell like follows:
>
> (void) printf("rank %d: gathered[%d].node = %d\n", rank, i,
gathered[i].node);
>
> From my side, I did not see anything wrong from your code in
Open MPI 1.4.3. after I add rank, the output is
> rank 5: gathered[0].node = 0
> rank 5: gathered[1].node = 1
> rank 5: gathered[2].node = 2
> rank 5: gathered[3].node = 3
> rank 5: gathered[4].node = 4
> rank 5: gathered[5].node = 5
> rank 3: gathered[0].node = 0
> rank 3: gathered[1].node = 1
> rank 3: gathered[2].node = 2
> rank 3: gathered[3].node = 3
> rank 3: gathered[4].node = 4
> rank 3: gathered[5].node = 5
> rank 1: gathered[0].node = 0
> rank 1: gathered[1].node = 1
> rank 1: gathered[2].node = 2
> rank 1: gathered[3].node = 3
> rank 1: gathered[4].node = 4
> rank 1: gathered[5].node = 5
> rank 0: gathered[0].node = 0
> rank 0: gathered[1].node = 1
> rank 0: gathered[2].node = 2
> rank 0: gathered[3].node = 3
> rank 0: gathered[4].node = 4
> rank 0: gathered[5].node = 5
> rank 4: gathered[0].node = 0
> rank 4: gathered[1].node = 1
> rank 4: gathered[2].node = 2
> rank 4: gathered[3].node = 3
> rank 4: gathered[4].node = 4
> rank 4: gathered[5].node = 5
> rank 2: gathered[0].node = 0
> rank 2: gathered[1].node = 1
> rank 2: gathered[2].node = 2
> rank 2: gathered[3].node = 3
> rank 2: gathered[4].node = 4
> rank 2: gathered[5].node = 5
>
> Is that what you expected?
>
> On Fri, Dec 9, 2011 at 12:03 PM, Brett Tully
<brett.tu...@oxyntix.com <mailto:brett.tu...@oxyntix.com>> wrote:
> Dear all,
>
> I have not used OpenMPI much before, but am maintaining a large
legacy application. We noticed a bug to do with a call to
MPI_Allgather as summarised in this post to Stackoverflow:
http://stackoverflow.com/questions/8445398/mpi-allgather-produces-inconsistent-results
>
> In the process of looking further into the problem, I noticed
that the following function results in strange behaviour.
>
> void test_all_gather() {
>
> struct _TEST_ALL_GATHER {
> int node;
> };
>
> int ierr, size, rank;
> ierr = MPI_Comm_size(MPI_COMM_WORLD, &size);
> ierr = MPI_Comm_rank(MPI_COMM_WORLD, &rank);
>
> struct _TEST_ALL_GATHER local;
> struct _TEST_ALL_GATHER *gathered;
>
> gathered = (struct _TEST_ALL_GATHER*) malloc(size *
sizeof(*gathered));
>
> local.node = rank;
>
> MPI_Allgather(&local, sizeof(struct _TEST_ALL_GATHER), MPI_BYTE,
> gathered, sizeof(struct _TEST_ALL_GATHER), MPI_BYTE,
MPI_COMM_WORLD);
>
> int i;
> for (i = 0; i < numnodes; ++i) {
> (void) printf("gathered[%d].node = %d\n", i,
gathered[i].node);
> }
>
> FREE(gathered);
> }
>
> At one point, this function printed the following:
> gathered[0].node = 2
> gathered[1].node = 3
> gathered[2].node = 2
> gathered[3].node = 3
> gathered[4].node = 4
> gathered[5].node = 5
>
> Can anyone suggest a place to start looking into why this might
be happening? There is a section of the code that calls
MPI_Comm_split, but I am not sure if that is related...
>
> Running on Ubuntu 11.10 and a summary of ompi_info:
> Package: Open MPI buildd@allspice Distribution
> Open MPI: 1.4.3
> Open MPI SVN revision: r23834
> Open MPI release date: Oct 05, 2010
> Open RTE: 1.4.3
> Open RTE SVN revision: r23834
> Open RTE release date: Oct 05, 2010
> OPAL: 1.4.3
> OPAL SVN revision: r23834
> OPAL release date: Oct 05, 2010
> Ident string: 1.4.3
> Prefix: /usr
> Configured architecture: x86_64-pc-linux-gnu
> Configure host: allspice
> Configured by: buildd
>
> Thanks!
> Brett
>
> _______________________________________________
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> us...@open-mpi.org <mailto:us...@open-mpi.org>
> http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>
>
> --
> | Teng Ma Univ. of Tennessee |
> | t...@cs.utk.edu <mailto:t...@cs.utk.edu> Knoxville, TN |
> | http://web.eecs.utk.edu/~tma/
<http://web.eecs.utk.edu/%7Etma/> |
>
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>
>
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