Thanks for that info!
I was literally just digging into this myself; I am able to replicate the
problem on a 1.5.1 tarball, but not on a nightly 1.5.2 snapshot tarball. Would
you mind trying to replicate the issue on a recent 1.5.2 snapshot?
http://www.open-mpi.org/nightly/v1.5/
On Jan 22, 2011, at 10:58 AM, Avinash wrote:
> Hello,
> I figured out the problem, which is described herein, it might be
> useful for someone else. The problem stems from ompi_local_slave option being
> set on its own in the MPI_Info structure. It seems that MPI_Info_create is
> using a shift or more likely a masking operation (depending upon the size of
> some type, which in turn depends upon the underlying architecture), which
> sets the ompi_local_slave bit to high. As a result, "jdata->controls" has
> it's ORTE_JOB_CONTROL_LOCAL_SLAVE bit set high, see plm_rsh_module.c (line
> 1065) for the problem. I took the easy solution and set the ompi_local_slave
> to "no" in the Info structure and that solves the problem. Maybe this needs
> further investigation.
>
> Regards,
>
> On 1/21/11 7:22 PM, Avinash Malik wrote:
>>
>> Hello,
>>
>> I have compiled openmpi-1.5.1 as a 32-bit binary on a 64-bit
>> architecture. I have a problem using MPI_Comm_spawn and
>> MPI_Comm_spawn_multiple, when MPI_Info is used as a non NULL
>> (MPI_INFO_NULL) parameter. I get a segmentation fault. I have
>> the exact same code running fine on a 32-bit machine. I cannot
>> use the 64-bit openmpi due to problems with other software,
>> which uses openmpi, but can only be compiled in the 32-bit mode.
>>
>> I am attaching all the information, in a .tgz file. The .tgz
>> file consists of:
>>
>> (1) The c-code for a small example two files parent.c and
>> child.c
>> (2) The compile_command that I ran on a 64-bit machine.
>> (3) The run command to run the system
>> compiling openmpi-1.5.1.
>> (4) ompi_info_all
>> (5) The error that I get, it's a segmentation fault.
>>
>> Regards,
>>
>>
>>
>>
>>
>>
>>
>>
>> _______________________________________________
>> users mailing list
>> us...@open-mpi.org
>> http://www.open-mpi.org/mailman/listinfo.cgi/users
> _______________________________________________
> users mailing list
> us...@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/users
--
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to:
http://www.cisco.com/web/about/doing_business/legal/cri/
