[mpich-discuss] How can I debug MPI program

[Jain, Rohit]

You can use totalview to debug your MPI program. It provides better debugging experience than plain gdb.

Regards,
Rohit


-----Original Message-----
From: mpich-discuss-bounces at mcs.anl.gov [mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Pavan Balaji
Sent: Wednesday, July 27, 2011 10:06 PM
To: clara
Cc: mpich-discuss at mcs.anl.gov
Subject: Re: [mpich-discuss] How can I debug MPI program


I should have clarified -- mpd is not supported anymore. So "-gdb" is 
not a supported option as far as MPICH2 is concerned.

You are welcome to use mpd, but we can't help you with it.

  -- Pavan

On 07/27/2011 11:50 PM, clara wrote:
> Thanks. I changed --with-pm=hydra:gforker  into
> --with-pm=mpd:hydra:gforker, and rebuilt the mpich2 and MPI program. I
> got "unable to find mpd.conf file" when running "mpiexec -gdb ..." .
> How can I do?
>
> Clara
>
> On Thu, Jul 28, 2011 at 12:24 AM, Pavan Balaji <balaji at mcs.anl.gov
> <mailto:balaji at mcs.anl.gov>> wrote:
>
>
>     The -gdb option was an mpd specific option which is currently not
>     supported by Hydra. It's on our todo list to add.
>
>       -- Pavan
>
>
>     On 07/27/2011 09:19 PM, clara wrote:
>
>         I used the below configure command line to configure and build
>         32-bit
>         mpich2-1.4, and then built an MPI program.
>
>         ./configure --prefix=/mnt/lux/git/pios/xc/__mpich2-32
>         --with-pm=hydra:gforker --disable-faster --enable-debuginfo
>         CFLAGS=-m32
>         CXXFLAGS=-m32 FFLAGS=-m32 FCFLAGS=-m32 --enable-nmpi-as-mpi
>         --enable-lib-depend --enable-shared 2>&1 | tee mpich2-32cfg.txt
>
>         When I executed "mpiexec -gdb -n 2 cg.S.2", I got the below message:
>         [mpiexec at ubuntu] match_arg (./utils/args/args.c:122): unrecognized
>         argument gdb
>         [mpiexec at ubuntu] HYDU_parse_array (./utils/args/args.c:140):
>         argument
>         matching returned error
>         [mpiexec at ubuntu] parse_args (./ui/mpich/utils.c:1358): error parsing
>         input array
>         [mpiexec at ubuntu] HYD_uii_mpx_get_parameters
>         (./ui/mpich/utils.c:1409):
>         unable to parse user arguments
>
>         Usage: ./mpiexec [global opts] [exec1 local opts] : [exec2 local
>         opts] : ...
>
>         Global options (passed to all executables):
>         ......
>
>         It seems that hydra does not support -gdb option. How can build an
>         mpich2 which can support -gdb option?
>         Thanks.
>
>         -Clara
>
>
>
>         _________________________________________________
>         mpich-discuss mailing list
>         mpich-discuss at mcs.anl.gov <mailto:mpich-discuss at mcs.anl.gov>
>         https://lists.mcs.anl.gov/__mailman/listinfo/mpich-discuss
>         <https://lists.mcs.anl.gov/mailman/listinfo/mpich-discuss>
>
>
>     --
>     Pavan Balaji
>     http://www.mcs.anl.gov/~balaji
>
>

-- 
Pavan Balaji
http://www.mcs.anl.gov/~balaji
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