[PVFS2-users] RE: Question: relation between PVFS2 and MPI-IO

[Rajeev Thakur]

Ryuta,
      If you open a file that resides on a PVFS2 file system, MPI-IO will
call PVFS2 functions to access that file. That is, MPI-IO makes PVFS calls
underneath.

Rajeev

> Date: Thu, 12 May 2005 23:48:54 -0500
> From: Ryuta Suzuki <suzu0037 at aem.umn.edu>
> Subject: [PVFS2-users] Question: relation between PVFS2 and MPI-IO
> To: pvfs2-users at beowulf-underground.org
> Message-ID: <428431B6.8070207 at aem.umn.edu>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
> 
> Hi all,
> 
> Could anyone explain to me how pvfs2 and mpi-io interact each other? 
> It's not clear to me when and how pvfs2 gets activated for mpi-io 
> functions. Say, if my program issues MPI_File_write_all, will 
> pvfs2-server play some role underneath? Thank you for your time.
> 
> --Ryuta