[Openmp-commits] [PATCH] D96379: [OpenMP] Unify omptarget API and usage wrt. `__tgt_async_info`
Johannes Doerfert via Phabricator via Openmp-commits
openmp-commits at lists.llvm.org
Wed Feb 10 15:05:06 PST 2021
jdoerfert added inline comments.
================
Comment at: openmp/libomptarget/src/omptarget.cpp:644
- // We need to synchronize before deallocating data.
- // If AsyncInfo is nullptr, the previous data transfer (if has) will be
+ // TODO: We should not synchronized here but pass the AsyncInfo object to the
+ // allocate/deallocate device APIs. We need to synchronize before deallocating
----------------
tianshilei1992 wrote:
> I'm lost in the comment...We don't need the synchronization here if we have async data free.
Clang format mixed the TODO with the comment that was there.
```
// TODO: We should not synchronized here but pass the AsyncInfo object to the allocate/deallocate device APIs.
// We need to synchronize before deallocating
// data. If AsyncInfo is nullptr, the previous data transfer (if has) will be
// synchronous, so we don't need to synchronize again. If AsyncInfo->Queue is
// nullptr, there is no data transfer happened because once there is,
// AsyncInfo->Queue will not be nullptr, so again, we don't need to
// synchronize.
```
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D96379/new/
https://reviews.llvm.org/D96379
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