[mpich-discuss] How can I debug MPI program

[clara]

Thank you so much.

I use  the below commandline and can debug now.
    mpiexec -n 2 xterm -e gdb cg.S.2


On Thu, Jul 28, 2011 at 9:44 AM, Pavan Balaji <balaji at mcs.anl.gov> wrote:
>
> On 07/28/2011 12:15 AM, clara wrote:
>>
>> I see. I find mpich2-1.2 supports -gdb, doesn't it?
>
> mpich2-1.2 had MPD as the default process manager. That was changed to Hydra
> in 1.3 and mpd deprecated.
>
>> Btw, for the current hydra process manager, we can use totalview to
>> debug program, don't you?
>
> Yes, totalview, ddt, ddd are all fine. The native gdb itself is supported as
> well. You can even use it as:
>
> % mpiexec -n 1 xterm -e gdb cg.S.2 : -n 1 xterm -e gdb cg.S.2
>
> The "-gdb" option within mpd, on the other hand, isn't the native gdb. MPD
> had its own gdb terminal implemented internally which used to manage many
> independent native gdb's. That option is currently not available (till we
> add it).
>
>  -- Pavan
>
> --
> Pavan Balaji
> http://www.mcs.anl.gov/~balaji
>