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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: Ralph Castain (rhc_at_[hidden])
Date: 2013-06-18 20:59:40


I'd suggest just pursuing this with her thread then - like I said, with the config I passed her, it works fine for me, and that is on OSX 10.8.4. However, I use the gcc compiler and not clang.

On Jun 18, 2013, at 2:23 PM, Hans Ekkehard Plesser <hans.ekkehard.plesser_at_[hidden]> wrote:

>
> 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
>
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users