Thanks for the answer, I didn't know non-blocking collective I/O didn't exist yet. What about non-blocking independent I/O in HDF5 ?
Matthieu 2011/8/16 Quincey Koziol <[email protected]> > Hi Matthieu, > > On Aug 15, 2011, at 11:25 AM, Matthieu Dorier wrote: > > > Hello, > > > > I have an application that uses HDF5 and collective I/O to write data, I > wonder if it is possible to write asynchronously (still collectively) and > without to much change in my code? I searched in the H5P part of the > documentation, looking for any flag which would have turned I/O into > asynchronous, but found nothing... > > Unfortunately, MPI doesn't (yet) support nonblocking collective I/O > operations. We (The HDF Group) are participating in the MPI Forum standard > committee, and are proposing this feature be a part of the upcoming MPI 3.0 > standard, but that's still going to be about a year away. > > Quincey > > > > _______________________________________________ > Hdf-forum is for HDF software users discussion. > [email protected] > http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org > -- Matthieu Dorier ENS Cachan, Brittany (Computer Science dpt.) IRISA Rennes, Office E324 http://perso.eleves.bretagne.ens-cachan.fr/~mdori307/wiki/
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