[mvapich-discuss] Problem with MPI_Init

[Matthew Koop]

Michael,

I'm a bit unclear on what issue you are facing here. I'm assuming this is
with MVAPICH2 (not openmpi as you note later)? If so, what version are you
using and with what compile and configure options? How many processes is
this seen with?

The MPID_CS_ENTER macro is only defined when --enable-threads is used in
the configure stage, otherwise it is not defined. Even with
multithreading, we have not seen any issues.

Please let me know a little more about what options you are using so we
can better assist.

Thanks,
Matt

On Tue, 5 Dec 2006, Schwind Michael wrote:

> Hello,
>
> first lets say thank you for your great work
> on mvapich.
>
> Now my problem:
>
> My program hangs  in MPI_Init, when I start it.
>
>
> The problem seems to be that the thread
> waits to lock a mutex.
>
> The mutex was set in MPI_Init through
> MPID_CS_ENTER() on line 89 in init.c.
>
> The thread calls the macro  MPID_CS_ENTER()
> a second time in the function MPI_Comm_rank
> some time later in the function MPI_Init:
>
> if (split_comm == 1){
>        int my_id, size;
>        MPI_Comm_rank(MPI_COMM_WORLD, &my_id);
>
> My distribution is debian testing on amd64.
> I use openmpi 1.0 compiled with gcc 4.1.2.
>
>
> Whats wrong with my setup.
>
> Thanks
>
> Michael
>
>
>
>
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