[mpich-discuss] MPICH2 for ARM

[Harald Schuster]

Hi

When I use the version mpich2-1.3.2 with the process manager hydra and I 
run he "mpirun /bin/hostname" command i got the following error:

[mpiexec at da830] HYDU_create_process 
(/mnt/ti_am1707_root/home/default/mpich2-1.3.2/src/pm/hydra/utils/launch/launch.c:69): 
execvp error on file ssh (No such file or directory)

Do I need ssh when I use hydra and ch3:sock?!

Harald

On 11.11.2011 22:51, Pavan Balaji wrote:
>
> 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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