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[FEA]: Enable transaction accounting on all barriers #432

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gonzalobg opened this issue Sep 12, 2023 · 0 comments
Open
1 task done

[FEA]: Enable transaction accounting on all barriers #432

gonzalobg opened this issue Sep 12, 2023 · 0 comments
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feature request New feature or request.

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@gonzalobg
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Is this a duplicate?

Area

libcu++

Is your feature request related to a problem? Please describe.

Reported by @griwes and @miscco in this thread. Quoting @griwes:

I am not convinced about only supporting this on sm_90+ and on shmem barriers. For a future memcpy_async_tx, we'll just do a fallback and never issue tx-based instructions for those cases, so if arrive_tx is just an arrive there (essentially discarding the tx count), that should be fine, no?

I'd like our users to be able to just write the same code everywhere, have it use hardware features where available, and do a fallback everywhere else where possible (so only trap for cases where we can't tell what the correct thing to do is, like in the barrier in cluster shmem case).

cc @ahendriksen

Describe the solution you'd like

See above.

Describe alternatives you've considered

No response

Additional context

No response

@gonzalobg gonzalobg added the feature request New feature or request. label Sep 12, 2023
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Labels
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