Memory Ordering#
ISHMEM_FENCE#
Ensures ordering of delivery of operations on symmetric data objects.
-
void ishmem_fence()#
Callable from the host and device.
Description: This routine ensures ordering of delivery of operations on symmetric data objects.
All operations on symmetric data objects issued to a particular PE prior to the
call to ishmem_fence are guaranteed to be delivered before any subsequent
operations on symmetric data objects to the same PE.
ishmem_fence guarantees order of delivery, not completion.
It does not guarantee order of delivery of nonblocking Get or values fetched
by nonblocking AMO routines.
ISHMEMX_FENCE_WORK_GROUP#
Ensures ordering of delivery of operations on symmetric data objects.
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void ishmemx_fence_work_group(const Group &group)#
- Parameters:
group – The SYCL
grouporsub_groupon which to collectively perform the fence operation.
Callable from the device.
Description: This routine ensures ordering of delivery of operations on symmetric data objects.
All operations on symmetric data objects issued to a particular PE prior to the
call to ishmemx_fence_work_group are guaranteed to be delivered before any subsequent
operations on symmetric data objects to the same PE.
ishmemx_fence_work_group guarantees order of delivery, not completion.
It does not guarantee order of delivery of nonblocking Get or values fetched
by nonblocking AMO routines.
ISHMEM_QUIET#
Waits for completion of outstanding operations on symmetric data objects issued by a PE.
-
void ishmem_quiet()#
Callable from the host and device.
Description:
The ishmem_quiet routine ensures completion of all operations on
symmetric data objects issued by the calling PE.
All operations on symmetric data objects are guaranteed to be complete and
visible to all PEs when ishmem_quiet returns.
ISHMEMX_QUIET_WORK_GROUP#
Waits for completion of outstanding operations on symmetric data objects issued by a PE.
-
void ishmemx_quiet_work_group(const Group &group)#
- Parameters:
group – The SYCL
grouporsub_groupon which to collectively perform the quiet operation.
Callable from the device.
Description:
The ishmemx_quiet_work_group routine ensures completion of all operations on
symmetric data objects issued by the calling PE.
All operations on symmetric data objects are guaranteed to be complete and
visible to all PEs when ishmemx_quiet_work_group returns.