[mpich-discuss] IMB fails with tcp/ip 512 processes.

[Devesh Sharma]

thanks sir,

I will try out this.
Dose new TCP/IP mpi stack still uses UD socket fot data transfer? If
yes them what is the difficulty to use TCP socket?

On Wed, Jun 3, 2009 at 5:18 PM, Dhabaleswar Panda
<panda at cse.ohio-state.edu> wrote:
> If you are interested in the TCP/IP interface, you should use the latest
> MPICH2 stack (not MVAPICH2 stack). FYI, the TCP/IP interface support in
> MVAPICH2-1.2 is similar to that in MPICH2 1.0.7. We released MVAPICH2 1.4
> yesterday and it has the TCP/IP support of MPICH2 1.0.8p1.  The latest
> version of MPICH2 stack is the 1.1 series. You should use this version to
> get the best performance and stability.
>
> Hope this helps.
>
> Thanks,
>
> DK
>
> On Wed, 3 Jun 2009, Devesh Sharma wrote:
>
>> Hello list
>>
>> I am trying to run IMB using ssm ADI of MVAPICH2-1.2 on 32 quad socket
>> quad core machines. But it is failing because segfault when I run with
>> 512 processes.
>> Somebody kindly help me to figure out where the problem is.
>>
>> -Devesh
>>
>
>