smsc/accelerator: add new smsc component #12949
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bosilca
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- add smsc component based on the accelerator API IPC functionality. - adjust smsc base selection logic to enable a pass-through mechanism with the new smsc/accelerator component Signed-off-by: Edgar Gabriel <[email protected]>
when using the blocking hipMemcpy version of the _memcpy operation we seem to need a synchronization of the default stream to ensure completeness in some cases. Signed-off-by: Edgar Gabriel <[email protected]>
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By default, the smsc/accelerator component is disabled to avoid a small hit on the latency for host memory.
The smsc/accelerator component forwards host memory to the 'next' smsc component. This mechanism has been tested with cma and xpmem, but not with knem (due to a lack of a system with knem installed).