[mpich-discuss] bug in MPI_File_write_all?

Rob Latham robl at mcs.anl.gov
Wed May 21 08:06:09 CDT 2014

On 05/21/2014 05:50 AM, CANELA-XANDRI Oriol wrote:
> Ok, so it seems a problem with parallel access to this file system. Other network file systems like NFS, for instance, should not be a problem, right?
> Do you know if there is some method just for checking that this kind of problems will not arise in a particular system (with an 'unknown' file system)?

you can use NFS if you must but NFS is also not a true parallel file system.

One could simply write to a local file system for a start.

The PVFS parallel file system is another option.  It's free and easy to 
deploy.  Many sites have Lustre, though it is a bit more complicated.


Rob Latham
Mathematics and Computer Science Division
Argonne National Lab, IL USA

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