On Mon, Sep 12, 2011 at 09:32:43AM +0200, Mathieu Gontier wrote: > In this context, it seems using PHDF5 requires each process writes > the same quantity of data, or more precisely, each process have to > call the write functions N times per process.
please note that "same quantity" and "same number of calls" are not at all equivalent statements. I think you need the call H5S_select_none so the "do nothing" workers can still participate in this collective routine, even if they have no i/o to contribute. http://www.hdfgroup.org/HDF5/doc/RM/RM_H5S.html#Dataspace-SelectNone ==rob -- Rob Latham Mathematics and Computer Science Division Argonne National Lab, IL USA _______________________________________________ Hdf-forum is for HDF software users discussion. [email protected] http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
