Hi,
I have a question regarding the performance of parallel I/O vs MPI
communication based calls. I have data which needs to be accessed by
different processors. If the data is in memory then MPI calls (Send/Recv)
does the job. In an another scenario the data is written to a H5 file and
different processors access the respective data using parallel I/O. Would
MPI calls be faster than HDF5 parallel I/O? (data access could be
unstructured)
Regards
Suman Vajjala
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