[Profiler plugin] Fix segfault issue with profiler plugin (#1973)

* Fix profiler plugin segfault by correctly setting p2p->func

* Look for librccl-profiler.so instead of libnccl-profiler.so

Signed-off-by: rahulvaidya20 <ravaidya@amd.com>

---------

Signed-off-by: rahulvaidya20 <ravaidya@amd.com>
Co-authored-by: Yongjie Qiu <Yongjie.Qiu@amd.com>

src/enqueue.cc

@@ -2574,6 +2574,7 @@ static ncclResult_t taskAppend(struct ncclComm* comm, struct ncclInfo* info) {
     // Must be in thread local group before tasks can be alloc'd in `comm->memScoped`.
     ncclGroupCommJoin(info->comm, ncclGroupTaskTypeCollective);
     struct ncclTaskP2p* p2p = ncclMemoryPoolAlloc<struct ncclTaskP2p>(&comm->memPool_ncclTaskP2p, &comm->memPermanent);
+    p2p->func = info->coll;
     p2p->buff = (void*)info->recvbuff;
     p2p->count = info->count;
     p2p->datatype = info->datatype;

src/plugin/plugin_open.cc

@@ -18,7 +18,7 @@
 static char* libNames[NUM_LIBS];
 static void *libHandles[NUM_LIBS];
 static const char *pluginNames[NUM_LIBS] = { "NET", "TUNER", "PROFILER" };
-static const char *pluginPrefix[NUM_LIBS] = { "librccl-net", "libnccl-tuner", "libnccl-profiler" };
+static const char *pluginPrefix[NUM_LIBS] = { "librccl-net", "libnccl-tuner", "librccl-profiler" };
 static const char *pluginFallback[NUM_LIBS] = { "", "Using internal tuner plugin.", "" };
 static unsigned long subsys[NUM_LIBS] = { NCCL_INIT|NCCL_NET, NCCL_INIT|NCCL_TUNING, NCCL_INIT };