Hi Matthieu,
On Aug 18, 2011, at 9:34 AM, Matthieu Dorier wrote:
> 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?
We are in the process of adding support for async I/O to HDF5, but it's
early yet and we haven't specifically worked on parallel features. Probably in
the next year or so…
Quincey
> 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
>
>
>
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>
>
> --
> Matthieu Dorier
> ENS Cachan, Brittany (Computer Science dpt.)
> IRISA Rennes, Office E324
> http://perso.eleves.bretagne.ens-cachan.fr/~mdori307/wiki/
> _______________________________________________
> Hdf-forum is for HDF software users discussion.
> [email protected]
> http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
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