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…e_thread_request_affinity` (iree-org#15499)
TSan report:
```
WARNING: ThreadSanitizer: data race (pid=45817)
Read of size 4 at 0x0001084004e0 by thread T2:
#0 iree_thread_request_affinity threading_darwin.c:230 (local-task_vmvx_semaphore_submission_test:arm64+0x100078f40)
#1 iree_task_worker_main worker.c:385 (local-task_vmvx_semaphore_submission_test:arm64+0x100071594)
#2 iree_thread_start_routine threading_darwin.c:72 (local-task_vmvx_semaphore_submission_test:arm64+0x100078e3c)
Previous write of size 4 at 0x0001084004e0 by main thread:
#0 iree_thread_create threading_darwin.c:140 (local-task_vmvx_semaphore_submission_test:arm64+0x100078ca4)
#1 iree_task_worker_initialize worker.c:66 (local-task_vmvx_semaphore_submission_test:arm64+0x1000714f8)
#2 iree_task_executor_create executor.c:161 (local-task_vmvx_semaphore_submission_test:arm64+0x10006b2b0)
```
The read of `thread->mach_port` at
https://github.com/openxla/iree/blob/ccc4c3719cea467477a783f1c9e9f1fc06b4c508/runtime/src/iree/base/internal/threading_darwin.c#L230
is not ordered relatively to the write of that variable in the parent
thread after `pthread_mach_thread_np` returns:
https://github.com/openxla/iree/blob/ccc4c3719cea467477a783f1c9e9f1fc06b4c508/runtime/src/iree/base/internal/threading_darwin.c#L140
The proposed fix is that the worker thread shouldn't need to access its
own `thread->mach_port`, it can equivalently call `mach_task_self()`.
ikalinic
changed the title
ROCM queue ordered allocations
[experimental][ROCM] ROCM queue ordered allocations
Nov 16, 2023
ROCM HAL queue ordered allocations implementation
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