Re: [OMPI users] using openib and psm together

[Dave Love]

Jeff Squyres  writes:

> I believe it was mainly a startup issue -- there's a complicated
> sequence of events that happens during MPI_INIT.  IIRC, the issue was
> that if OMPI had software support for PSM, it assumed that the lack of
> PSM hardware was effectively an error.

Thanks.  For what it's worth, I'm not seeing the problem with 1.4.3 for
some reason.

Re: [OMPI users] MPI_Alltoallv function crashes when np > 100

[孟宪军]

It seems that the const variable SOMAXCONN who used by listen() system call
causes this problem. Can anybody help me resolve this question?

2011/4/25 孟宪军 

> Dear all,
>
> As I mentioned, when I mpiruned an application with the parameter "np =
> 150(or bigger)", the application who used the MPI_Alltoallv function would
> carsh. The problem would recur no matter how many nodes we used.
>
> The edition of OpenMPI: 1.4.1 or 1.4.3
> The OS: linux redhat 2.6.32
>
> BTW, my nodes had enough memory to run the application, and the
> MPI_Alltoall function worked well at my environment.
> Did anybody meet the same problem? Thanks.
>
>
> Best Regards
>
>
>
>