[MPICH] ROMIO practice doubts

[Luiz Mendes]

Hi all,

I have read MPI 2 book, ROMIO guide and some articles about optimizations
for MPI IO. But i didnt see yet or i didnt understand where hints would be
placed on MPI_File_open code.

Should i use ROMIO hints replaceing MPI_INFO_NULL constant in MPI_File_open
function?

Thanks in advance
Luiz Mendes
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