[mpich-discuss] gdb + hydra

[Pavan Balaji]

Hi Christopher,

I did notice this problem earlier with csh.  We have no idea why 
csh/tcsh have this problem, but other shells seem to work fine.

Are you sure you tried bash?  We never saw this problem with bash 
before.  Can you ensure that your "$SHELL" actually says bash, and that 
it's not a symbolic link back to tcsh (that did happen to someone 
earlier, so it's worth checking).

  -- Pavan

On 09/18/2012 01:04 AM, Christoph Sprenger wrote:
> still trying to get this to work.
> i've also tried a vanilla tcsh and bash with no env set at all and both
> seem to fail still.
>
> same things persists when running mpiexec -n 1 gdb without xterm
>
> Ubuntu 10.04.4 LTS
> GNU bash, version 4.1.5(1)-release
> tcsh 6.17.00 (Astron)
>
>
> mpich2
> ./configure --enable-shared --enable-sharedlibs=gcc
>
>
>
>
> #include "mpi.h"
> #include <iostream>
>
> int main(int argc, char *argv[])
> {
>       MPI_Init(&argc, &argv);
>       int rank,size;
>       MPI_Comm_size( MPI_COMM_WORLD, &size );
>       MPI_Comm_rank( MPI_COMM_WORLD, &rank );
>       std::cerr << "Hello World from rank " << rank << " / " << size <<
> std::endl;
>       MPI_Finalize();
> }
>
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib/libthread_db.so.1".
> [cli_0]: write_line error; fd=6 buf=:cmd=init pmi_version=1 pmi_subversion=1
> :
> system msg for write_line failure : Bad file descriptor
> [cli_0]: Unable to write to PMI_fd
> [cli_0]: write_line error; fd=6 buf=:cmd=get_appnum
> :
> system msg for write_line failure : Bad file descriptor
> Fatal error in MPI_Init: Other MPI error, error stack:
> MPIR_Init_thread(392):
> MPID_Init(107).......: channel initialization failed
> MPID_Init(389).......: PMI_Get_appnum returned -1
> [Inferior 1 (process 3132) exited with code 01]
>
>
> is there anything else i can try to make this work ( eg different
> configure options for hydra or mpich2 ) ?
>
> Cheers,
> Christoph
>
>
>
>
> On 17/09/12 20:00, Christoph Sprenger wrote:
>> I'm having some issues doing the following:
>>
>> mpiexec -n 1 xterm -e gdb -ex r --args ./app ...
>>
>>
>> this used to work fine for me with 1.2.1 and mpd but seems to give me :
>>
>> [cli_0]: write_line error; fd=6 buf=:cmd=init pmi_version=1
>> pmi_subversion=1
>> :
>> system msg for write_line failure : Bad file descriptor
>> [cli_0]: Unable to write to PMI_fd
>> [cli_0]: write_line error; fd=6 buf=:cmd=get_appnum
>>
>> also tried :
>> setenv HYDRA_LAUNCHER_AUTOFORK 0
>>
>> however it falls over in MPI_Init.
>> seems like other people experienced this too, but i couldn't find a
>> hint that seems to address this issue
>>
>> i've tried tried 1.4.1p1 and 1.5rc1.
>>
>> any help would be appreciated.
>>
>> Kind Regards,
>> Christoph
>>
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-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji