Problem
For 64-bit clean functionality, convenience, and symmetry, the Big MPI principles being applied in Ticket #80 to collective operations should be applied to MPI I/O functionality.
Proposal
The I/O chapter will get new APIs for 64-bit clean support.
Changes to the Text
Appropriate new API and descriptions will be added with the _X suffix.
Impact on Implementations
Implementations will have to comply with 64-bit clean inside, add these new APIs, and make sure their drivers for parallel file systems support larger transfers and buffers.
Impact on Users
Users who opt in to the new API will be able to do bigger I/O transfers.
References
Tickets #80 and #97.
PR https://github.com/mpi-forum/mpi-standard/pull/58
Problem
For 64-bit clean functionality, convenience, and symmetry, the Big MPI principles being applied in Ticket #80 to collective operations should be applied to MPI I/O functionality.
Proposal
The I/O chapter will get new APIs for 64-bit clean support.
Changes to the Text
Appropriate new API and descriptions will be added with the _X suffix.
Impact on Implementations
Implementations will have to comply with 64-bit clean inside, add these new APIs, and make sure their drivers for parallel file systems support larger transfers and buffers.
Impact on Users
Users who opt in to the new API will be able to do bigger I/O transfers.
References
Tickets #80 and #97.
PR https://github.com/mpi-forum/mpi-standard/pull/58