Why not support RDMA?
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hellofinch
Oct 17, 2022, 9:17:13 PM10/17/22
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I use Ray, a unified framework for scaling AI and Python applications, in an HPC cluster. Ray is based on gRPC. The cluster I used has InfiniBand which has low latency and high bandwidth. I try to use IPoIB(Internet Protocol over InfiniBand). But in this way, I can not make full use of IB's bandwidth.
I want to optimize Ray on an HPC cluster with InfiniBand. RDMA, which can reduce CPU interruptions for network processing and increase CPU utilization, allows for a better performance of the software. I think it is a good choice for me. But so far, gRPC does not support RDMA. May I ask why not? What should I do if I want to take advantage of the RMDA and IB networks?
I want to optimize Ray on an HPC cluster with InfiniBand. RDMA, which can reduce CPU interruptions for network processing and increase CPU utilization, allows for a better performance of the software. I think it is a good choice for me. But so far, gRPC does not support RDMA. May I ask why not? What should I do if I want to take advantage of the RMDA and IB networks?
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