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Big MPI--MPI I/O functionality #98

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tonyskjellum opened this issue Jun 14, 2018 · 3 comments
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Big MPI--MPI I/O functionality #98

tonyskjellum opened this issue Jun 14, 2018 · 3 comments
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scheduled reading Reading is scheduled for the next meeting wg-io I/O Working Group wg-large-counts Large Counts Working Group

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@tonyskjellum
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tonyskjellum commented Jun 14, 2018

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

@tonyskjellum
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Initial text of the PR:

mpi32-report-ticket98-io-20sep18-1515.pdf

@wesbland
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wesbland commented Oct 7, 2020

@tonyskjellum / @puribangalore - Is this issue replaced by #137? Can we close this?

@puribangalore
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puribangalore commented Oct 7, 2020 via email

@wesbland wesbland closed this as completed Oct 7, 2020
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scheduled reading Reading is scheduled for the next meeting wg-io I/O Working Group wg-large-counts Large Counts Working Group
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