ch4: use am_tag_{send,recv} in RMA get/put

hzhou commented 2 weeks ago

Pull Request Description

Use amtag{send,recv} in RMA get/put.

This potentially works around the issue #7118

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hzhou commented 2 weeks ago

test:mpich/ch4/ucx test:,mpich/ch4/ofi/more

hzhou commented 1 week ago

test:mpich/ch4/most test:mpich/ch4/ofi/more