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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