[MPI3-IO] [EXTERNAL] New MPI-IO routines

Mohamad Chaarawi chaarawi at hdfgroup.org
Thu May 24 15:53:04 CDT 2012

Hi Dries,

On 5/24/2012 3:28 PM, Dries Kimpe wrote:
> Also, what (if anything) would prevent implementing this on top of MPI,
> using existing the MPI_File_iread/iwrite routines?

How would you do this efficiently and asynchronously?
you need to set atomic mode to get sequential consistency (which is not 
pretty and I don't think it is well supported). Even with atomic mode 
set, how would you guarantee serial execution order?


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