2.15.5-1

Fix crash with CollnetChain on some node topologies
Fix hang when interleaving the capture of different graphs
Fix hang during init in multi-threaded mode
Fix potential data corruption with LL128 protocol on unaligned buffers.
Fix CPU usage during preconnect
Fixes double-free in the error path for ncclCommInitAll
Workaround hang on H100 with Ring/LL128 on 2 GPUs.


[ROCm/rccl commit: cb111f764a]

projects/rccl/src/enqueue.cc

@@ -853,6 +853,7 @@ static ncclResult_t hostStreamPlanTask(struct ncclComm* comm, struct ncclKernelP
 }
 
 static void CUDART_CB hostStreamPlanCallback(void *plan_) {
+  NVTX3_FUNC_RANGE_IN(nccl_domain);
   struct ncclKernelPlan* plan = (struct ncclKernelPlan*)plan_;
   ncclResult_t result = hostStreamPlanTask(plan->comm, plan);
   if (result != ncclSuccess) {