Many thanks rob
On 09/12/2011 05:47 PM, Rob Latham wrote:
On Mon, Sep 12, 2011 at 05:05:51PM +0200, Mathieu Gontier wrote:
Hi Rob,
Many thanks for your help.
So, in my problem, it is more about "number of calls" for the
moment. Each process (running a structured solver) is in charge of a
number of sub domains (different on each process) which have
different sizes.
So, if I will understand what you are suggesting is:
- each process loops over all the sub domains;
- if the domain is hosted by the process, it has to read
- else, call H5S_select_none
Right?
exactly.
if it helps, you can have different sized domains, too.
e.g. one process can have a count array of of 1024,1024,1024 and
another could have 3,3,3. That wouldn
The important fact to remember is that these I/O calls are collective
(once passed in the appropriate property list), so like MPI_BARRIER or
other MPI collectives, all processors in the communicator need to make
the call.
Sometimes if the i/o is always on a certain set of processors,
applications make a sub-communicator and pass that into HDF5.
Probably do not need to worry about that, though.
==rob
--
/
Mathieu Gontier
skype: mathieu_gontier /
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