This document updates RFC 5043 and RFC 5044 by extending Marker Protocol Data Unit (PDU) Aligned Framing (MPA) negotiation for Remote Direct Memory Access (RDMA) connection establishment. The first enhancement extends RFC 5044, enabling peer-to-peer connection establishment over MPA / Transmission Co...
RC Ping Pong uses TCP communication to exchange addresses of QPs between the server and the client. We willfocus on the QP creation and connection establishmentrather than the TCP communication. Once the server and the client have the addresses of each other's QPs, they connect the QP and st...
In tests like ib_send_bw, use -R option to select rdma_cm for connection establishment. You can also use gid-index with -x option instead of -R: Example: On Intel Ethernet 800 Series or X722: ib_send_bw -F -n 5 -x 0 ...
Let’s start by looking at the server. The connection-establishment details are now hidden behindrc_init(), which sets various callback functions, andrc_server_loop(), which runs an event loop: intmain(intargc,char**argv) { rc_init( ...
(QPs). The two QPs comprise a QP on the RDMA adapter such as the RDMA adapter116and a QP on the RDMA adapter such as the RDMA adapter122. The QPs in an example are associated with each other by a standard connection establishment protocol. The two QPs in an example allow the Consumer...
// Finalize connection establishment after remote peer has called connectHandle ncclResult_t (*accept)(void* listenComm, void** recvComm); // Asynchronous send to a peer. Type is either NCCL_PTR_HOST or NCCL_PTR_CUDA. // May return request == NULL if the call cannot be performed (or...
Typically, under network and RDMA programming, there are operations which involve interaction with remote peers (such as address resolution and connection establishment) and remote entities (such as route resolution and joining a multicast group under IB), where a resource managed through IB verbs suc...
1) Use the CM libraries (libibcm/librdmacm) for connection establishment and teardown 2) Handle this within your application: maintain a "keep alive" messages and/or "leaving" message The question, is do you really need several QPs?
In tests like ib_send_bw, use -R option to select rdma_cm for connection establishment. You can also use gid-index with -x option instead of -R: Example: On Intel Ethernet 800 Series or X722: ib_send_bw -F -n 5 -x 0 ...