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Subject: Re: [OMPI users] MPI_Init_thread(..., MPI_THREAD_SERIALIZED) hangs under OSX 10.8.4 if compiled with OpenMPI 1.7.1
From: Hans Ekkehard Plesser (hans.ekkehard.plesser_at_[hidden])
Date: 2013-06-18 17:23:53


Hi!

I have tried building with --enable-opal-multi-threads (it was missing in MacPorts), but that did not help.

My problem seems very similar to that reported by Elias Rudberg in a separate thread, using Ubuntu.

I am using the clang compiler.

Best regards,
Hans

On 18. juni 2013, at 00.08, Ralph Castain wrote:

> For 1.7, you also have to configure with --enable-opal-multi-thread. I suspect MacPorts doesn't do that, so you might want to configure and build your own version.
>
>
> On Jun 16, 2013, at 5:27 AM, Hans Ekkehard Plesser <hans.ekkehard.plesser_at_[hidden]> wrote:
>
>>
>> On 15. juni 2013, at 01.31, Ralph Castain wrote:
>>
>>> I have no idea how MacPorts configures OMPI - did you check the output of ompi_info to see if threading was even enabled?
>>
>> ompi_info shows
>>
>> Thread support: posix (MPI_THREAD_MULTIPLE: yes, progress: no)
>>
>> for 1.6.4 and 1.7.1. I could post the full ompi_info if that would help.
>>
>> Best regards,
>> Hans
>>
>>>
>>>
>>> On Jun 14, 2013, at 3:12 PM, Hans Ekkehard Plesser <hans.ekkehard.plesser_at_[hidden]> wrote:
>>>
>>>>
>>>> Hi!
>>>>
>>>> I use OpenMPI 1.7.1 from MacPorts (+threads +gcc47). When compiling a simple hello world program calling
>>>>
>>>> MPI_Init_thread(&argc, &argv, MPI_THREAD_SERIALIZED, &provided);
>>>>
>>>> the program hangs if run on more than one process. All works fine if I
>>>>
>>>> - either use MPI_THREAD_SINGLE
>>>> - or use OpenMPI 1.6.4.
>>>>
>>>> The actual compiler invocation and compiler version are
>>>>
>>>> [Macintosh:~/tmp/hw] hep% openmpicc -o hw_mpi hw_mpi.c --showme
>>>> /usr/bin/clang -o hw_mpi hw_mpi.c -I/opt/local/include/openmpi -L/opt/local/lib -lmpi
>>>>
>>>> [Macintosh:~/tmp/hw] hep% /usr/bin/clang --version
>>>> Apple clang version 4.1 (tags/Apple/clang-421.11.66) (based on LLVM 3.1svn)
>>>> Target: x86_64-apple-darwin12.4.0
>>>> Thread model: posix
>>>>
>>>> The full program code is shown below. I have also reported this to the MacPorts bug tracker.
>>>>
>>>> Best regards,
>>>> Hans E Plesser
>>>>
>>>> ------
>>>> #include <stdio.h>
>>>>
>>>> #include <mpi.h>
>>>>
>>>> int main(int argc, char **argv)
>>>> {
>>>> int provided;
>>>> MPI_Init_thread(&argc, &argv, MPI_THREAD_SERIALIZED, &provided);
>>>>
>>>> printf("Provided threading level: %d.\n", provided);
>>>>
>>>> int rank;
>>>> MPI_Comm_rank(MPI_COMM_WORLD, &rank);
>>>>
>>>> printf("Hello, world! This is rank %d.\n", rank);
>>>>
>>>> MPI_Finalize();
>>>> return 0;
>>>> }
>>>> ------
>>>>
>>>>
>>>> --
>>>>
>>>> Dr. Hans Ekkehard Plesser, Associate Professor
>>>> Head, Basic Science Section
>>>>
>>>> Dept. of Mathematical Sciences and Technology
>>>> Norwegian University of Life Sciences
>>>> PO Box 5003, 1432 Aas, Norway
>>>>
>>>> Phone +47 6496 5467
>>>> Fax +47 6496 5401
>>>> Email hans.ekkehard.plesser_at_[hidden]
>>>> Home http://arken.umb.no/~plesser
>>>>
>>>>
>>>> _______________________________________________
>>>> users mailing list
>>>> users_at_[hidden]
>>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>>
>>>
>>> _______________________________________________
>>> users mailing list
>>> users_at_[hidden]
>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>
>> --
>>
>> Dr. Hans Ekkehard Plesser, Associate Professor
>> Head, Basic Science Section
>>
>> Dept. of Mathematical Sciences and Technology
>> Norwegian University of Life Sciences
>> PO Box 5003, 1432 Aas, Norway
>>
>> Phone +47 6496 5467
>> Fax +47 6496 5401
>> Email hans.ekkehard.plesser_at_[hidden]
>> Home http://arken.umb.no/~plesser
>>
>>
>> _______________________________________________
>> users mailing list
>> users_at_[hidden]
>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users

--
Dr. Hans Ekkehard Plesser, Associate Professor
Head, Basic Science Section
Dept. of Mathematical Sciences and Technology
Norwegian University of Life Sciences
PO Box 5003, 1432 Aas, Norway
Phone +47 6496 5467
Fax   +47 6496 5401
Email hans.ekkehard.plesser_at_[hidden]
Home  http://arken.umb.no/~plesser