[mpich-discuss] MPICH2 for ARM

[Pavan Balaji]

Does the following command work:

% mpirun /bin/hostname

If this gets a segmentation fault, the problem might be with mpirun. In 
this case, you can try to debug it using:

% gdb mpirun
(gdb) r /bin/hostname

  -- Pavan

On 11/11/2011 03:31 AM, Harald Schuster wrote:
> Hi
>
> I now tried the cpi example from the mpich2 sources and I also got a
> segmentation fault. I used the following configuration:
>
> CFLAGS="-static" CC=arm-linux-gcc ./../configure
> --prefix=/mnt/ti_am1707_root/usr/mpich2-install --with-pm=hydra
> --disable-f77 --disable-fc --disable-cxx --enable-g=dbg,mem,log
> --with-device=ch3:sock --host=arm-linux
>
> How is it possible to trace the execution of the program?!
>
>
>
> On 10.11.2011 16:33, Harald Schuster wrote:
>> I added the config.log to this mail but i changed the pm from hydra to
>> gforker only for testing and know the helloWorld example runs but when
>> I tried a example with a broadcast the programm stops without any
>> error but it not finishes. The gforker and hydra uses sockets or?
>>
>> On 10.11.2011 16:12, Jeff Hammond wrote:
>>> I think it will help if you post config.log.
>>>
>>> Can you run the test that fails within GDB or Valgrind? I do not
>>> think that mpirun itself is segfaulting, but rather that it activates
>>> the code path that does. Maybe this much was clear to you already.
>>>
>>> Jeff
>>>
>>> On Thu, Nov 10, 2011 at 3:33 AM, Harald Schuster
>>> <schuster at technikum-wien.at> wrote:
>>>> Hi
>>>>
>>>> I use MPICH2 on my normal Linux PC and it works fine. My next goal
>>>> is to run
>>>> MPICH2 on a arm926 (am1707) which is simulated in SimSoc and where a
>>>> normal
>>>> linux OS is running. The linux is compiled with the buildroot
>>>> 2010.05 and I
>>>> use the arm-linux-gcc 4.3.4. I tried to make the the mpich2 with the
>>>> arm-linux-gcc and it works. I used the following configuration:
>>>>
>>>> CFLAGS="-static" CC=arm-linux-gcc ./../configure
>>>> --prefix=/mnt/ti_am1707_root/usr/mpich2-install --with-pm=hydra
>>>> --disable-f77 --disable-fc --disable-cxx --disable-sharedlibs
>>>> --host=arm-linux --with-device=ch3:sock
>>>>
>>>> Also the make install process works fine. Then I compiled a small
>>>> helloWorld
>>>> example with the mpicc for arm and it also works. When I run the
>>>> helloWorld
>>>> example on the simulated processor I always got an segmentation
>>>> fault. For
>>>> starting the program I use the following command:
>>>>
>>>> mpirun -np 1 helloWorld
>>>>
>>>> When I start the helloWorld program without the mpirun command I got
>>>> the
>>>> right output. So I think the segmentation fault is caused by the mpirun
>>>> command but I don't know where and what I can do to solve the problem.
>>>>
>>>> Best regards
>>>> Harald
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>>>
>>>
>>
>>
>>
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>
>
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-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji