Hi Phil, Thanks for the quick response. Just to confirm, If pvfs2-server writes to say ext4, can there be caching effects from ext4 in-spite of the flushing (considering the size of the file is smaller than the size of the RAM in the server nodes) . ?
Please let me know, Thanks Vish On Jan 9, 2012, at 5:08 PM, Phil Carns wrote: > Hi Vish, > > Yes, mpi_file_sync will cause the server to fsync its data files. Just to > clarify, the PVFS clients never cache any data, so mpi_file_sync doesn't have > any effect on the client side. It just tells the servers to flush their data. > > -Phil > > On 01/09/2012 04:49 PM, Vishwanath Venkatesan wrote: >> Hi, >> >> If we make a parallel application write to pvfs2 filesystem and perform a >> mpi_file_sync in the client side, does it make sure that it does a sync in >> the server side too? Or is there a special configuration to make it sync in >> the server side? >> >> Please let me know, >> >> Thanks >> Vish >> _______________________________________________ >> Pvfs2-users mailing list >> [email protected] >> http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users > > _______________________________________________ > Pvfs2-users mailing list > [email protected] > http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users _______________________________________________ Pvfs2-users mailing list [email protected] http://www.beowulf-underground.org/mailman/listinfo/pvfs2-users
