the share memory optimization of RDMA in single machine

[wuyujiji]

Hello, as shown in Figure, the paper said that the byteps did the share memory optimization of RDMA in single machine. Where is the relevant code?

[ymjiang]

The IPCTransport class: https://github.com/bytedance/ps-lite/blob/byteps/src/rdma_transport.h#L469

[wuyujiji]

Okay, thank you for reply quickly! During reading the paper，I have a doubt that what is the difference between the summation service and communication service in BytePS and server and worker in traditional PS. In other words, the communication process of summation service and communication service can be equivalent to the communication of server and worker?

[ymjiang]

In other words, the communication process of summation service and communication service can be equivalent to the communication of server and worker?

Your understanding is right.