2.20.3-1

Add support for alternating rings, allow for cross-nic rings without
cross-rail communication.
Add support for user buffer registration for network send/recv.
Optimize aggregated operations to better utilize all channels.
Add flattening for BCM PCI gen5 switches.
Add support for inter-node NVLink communication
Add support for port fusion in NET/IB.
Add support for ReduceScatter and AllGather using Collnet.
Update net API to v8.
Fix hang during A2A connection.


[ROCm/rccl commit: b6475625fb]

projects/rccl/src/include/coll_net.h

@@ -19,9 +19,9 @@ static ncclResult_t collNetGetProperties(struct ncclComm* comm, int dev, ncclNet
 static ncclResult_t collNetListen(struct ncclComm* comm, int dev, void* handle, void** listenComm) { NCCLCHECK(comm->ncclCollNet->listen(dev, handle, listenComm)); return ncclSuccess; }
 static ncclResult_t collNetConnect(struct ncclComm* comm, void* handles[], int nranks, int rank, void* listenComm, void** collComm) { NCCLCHECK(comm->ncclCollNet->connect(handles, nranks, rank, listenComm, collComm)); return ncclSuccess; }
 static ncclResult_t collNetReduceSupport(struct ncclComm* comm, ncclDataType_t dataType, ncclRedOp_t redOp, int* supported) { NCCLCHECK(comm->ncclCollNet->reduceSupport(dataType, redOp, supported)); return ncclSuccess; }
-static ncclResult_t collNetRegMr(struct ncclComm* comm, void* collComm, void* data, int size, int type, void** mhandle) { NCCLCHECK(comm->ncclCollNet->regMr(collComm, data, size, type, mhandle)); return ncclSuccess; }
+static ncclResult_t collNetRegMr(struct ncclComm* comm, void* collComm, void* data, size_t size, int type, void** mhandle) { NCCLCHECK(comm->ncclCollNet->regMr(collComm, data, size, type, mhandle)); return ncclSuccess; }
 /* DMA-BUF support */
-static ncclResult_t collNetRegMrDmaBuf(struct ncclComm* comm, void* collComm, void* data, int size, int type, uint64_t offset, int fd, void** mhandle) { NCCLCHECK(comm->ncclCollNet->regMrDmaBuf(collComm, data, size, type, offset, fd, mhandle)); return ncclSuccess; }
+static ncclResult_t collNetRegMrDmaBuf(struct ncclComm* comm, void* collComm, void* data, size_t size, int type, uint64_t offset, int fd, void** mhandle) { NCCLCHECK(comm->ncclCollNet->regMrDmaBuf(collComm, data, size, type, offset, fd, mhandle)); return ncclSuccess; }
 static ncclResult_t collNetDeregMr(struct ncclComm* comm, void* collComm, void* mhandle) { NCCLCHECK(comm->ncclCollNet->deregMr(collComm, mhandle)); return ncclSuccess; }
 static ncclResult_t collNetIallreduce(struct ncclComm* comm, void* collComm, void* sendData, void* recvData, int count, ncclDataType_t dataType, ncclRedOp_t redOp, void* sendMhandle, void* recvMhandle,  void** request) {
   NCCLCHECK(comm->ncclCollNet->iallreduce(collComm, sendData, recvData, count, dataType, redOp, sendMhandle, recvMhandle, request)); return ncclSuccess; }