Implement PjRtClient::MakeCrossHostReceiveBuffers and PjRtBuffer:CopyToRemoteDevice in the PjRt C API. #97444
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…ToRemoteDevice in the PjRt C API. This currently only works for the Cuda plugin. It enables cross-host `jax.device_put` to work via NCCL instead of the transfer server library. PiperOrigin-RevId: 789140582
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Implement PjRtClient::MakeCrossHostReceiveBuffers and PjRtBuffer:CopyToRemoteDevice in the PjRt C API.
This currently only works for the Cuda plugin. It enables cross-host
jax.device_putto work via NCCL instead of the transfer server library.