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Migrate RAPIDS to CCCL MR interface (new allocation APIs) #2126

@bdice

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@bdice

As part of #2011, the RMM allocation APIs are changing to align with the new CCCL memory resource interface. All projects using RMM will need to apply the following migrations. For an example of these migrations, see the RMM internal migration changes: #2112

CCCL Memory Resource Interface Migration Guide

Action Legacy Interface (deprecating soon) CCCL Interface (new)
Synchronous allocation allocate(size) allocate_sync(size)
Stream-ordered allocation allocate_async(size, stream) allocate(stream, size)
Synchronous deallocation deallocate(ptr, size) deallocate_sync(ptr, size)
Stream-ordered deallocation deallocate_async(ptr, size, stream) deallocate(stream, ptr, size)

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