FW: [mvapich-discuss] MVAPICH default installation

[Stecher, Fred]

Matt,
The system administrator for our new SGI cluster computer informed me
that InfiniBand was not configured correctly and that my run could not
be using InfiniBand. The Config file had the wrong name for the network
interface card, i.e. NIC was set to ibO (ib letter "o) when NIC should
have been set to ib0 ( ib number "0"). My executable still ran even
though NIC was set wrong. Is this possible?

Thanks,

Fred
 

-----Original Message-----
From: Matthew Koop [mailto:koop at cse.ohio-state.edu]
Sent: Wednesday, April 09, 2008 1:18 PM
To: Stecher, Fred
Cc: mvapich-discuss at cse.ohio-state.edu
Subject: Re: [mvapich-discuss] MVAPICH default installation

Hi Fred,

If InfiniBand is not working then the job will not run. There is
currently no method by which it will fall back to TCP/IP.

Does this answer your question?

Matt

On Wed, 9 Apr 2008, Stecher, Fred wrote:

> Hi,
> When I installed MVAPICH, I used the default. If Infiniband is not 
> working will my executable still run?
>
> Thanks,
>
> Fred
>
>