[mvapich-discuss] MVAPICH2 VAPI and Scaling

[wei huang]

Hi Vishwas,

> To lauch the mpd
>
> mpdboot -n 65 -f mpd.hosts -m /usr/local/mvapich2/bin/mpd --verbose
> -ifhn=ifrontend

If I understood correctly, you have a 32 nodes cluster. So I am not sure
why here you use 65 as input parameter? Also, what have you put in your
mpd.hosts?

We found that you are using an old release of MVAPICH2 (0.9.3), the latest
release version is 0.9.6. Is it possible for you to update your stack? You
just need to download the tarball from our website and compile, there
should be no additional complexity than re-compiling 0.9.3.

Thanks.

-- Wei

>
>
>
> To run my job
>
> mpirun -np <num> ./a.out
>
>
>
> If this <num> is greater than 32, job get stuck at the about command and
> remains there for very long time.
>
>
>
> Can anyone please help me to resolve this.
>
>
>
> Regards
>
> Vishwas
>
>