[mvapich-discuss] Hard coded /tmp patch for shared memory files

[Matthew Koop]

John,

Thanks for the patch, we'll try to include this functionality in future
releases. We're also looking into not having to create the temp file at
all, which will be another way to resolve this issue on diskless clusters.

Thanks again for the feedback and patch,

Matt

On Mon, 28 Jul 2008, John Partridge wrote:

> We recently had a customer issue with shared memory files being
> hard coded to /tmp. The circumstances were that the system was
> a diskless cluster with /tmp being an in memory files system.
>
> The /tmp file system was not large enough to support the shared
> memory files. So, the customer asked if we could make mvapich use
> an alternative path for the shared memory files.
>
> The version the customer is using is mvapich-0.9.9-1326 (from ofed-1.3)
> and  we produced a patch to get an alternative path via an environment
> variable. The patch is attached in case you might want to include it
> in a future release of mvapich/mvapich2
>
> Regards
> John
>
> --
> John Partridge
> MPI Engineering Group
>
> Silicon Graphics Inc
> Tel:  651-683-3428
> Vnet: 233-3428
> E-Mail: johnip at sgi.com
>