RCCL Replayer update (#1603)

RCCL recorder w/ suggested change and UT

src/group.cc

@@ -17,6 +17,8 @@
 
 #include "msccl/msccl_lifecycle.h"
 
+using namespace rccl;
+
 __thread int ncclGroupDepth = 0; // depth of ncclGroupStart nesting
 __thread ncclResult_t ncclGroupError = ncclSuccess;
 __thread struct ncclComm* ncclGroupCommHead = nullptr;
@@ -96,6 +98,7 @@ ncclResult_t ncclAsyncJobComplete(struct ncclAsyncJob* job) {
 
 NCCL_API(ncclResult_t, ncclGroupStart);
 ncclResult_t ncclGroupStart_impl() {
+  NCCLCHECK(Recorder::instance().record(rrGroupStart, ncclGroupDepth));
   ncclResult_t ret = ncclSuccess;
   NVTX3_FUNC_RANGE_IN(nccl_domain);
 
@@ -114,6 +117,7 @@ ncclResult_t ncclGroupStartInternal() {
 
 NCCL_API(ncclResult_t, ncclGroupEnd);
 ncclResult_t ncclGroupEnd_impl() {
+  NCCLCHECK(Recorder::instance().record(rrGroupEnd, ncclGroupDepth));
   ncclResult_t ret = ncclSuccess;
   NVTX3_FUNC_RANGE_IN(nccl_domain);
   NCCLCHECKGOTO(ncclGroupEndInternal(), ret, exit);
@@ -124,6 +128,7 @@ exit:
 
 NCCL_API(ncclResult_t, ncclGroupSimulateEnd, ncclSimInfo_t* simInfo);
 ncclResult_t ncclGroupSimulateEnd(ncclSimInfo_t* simInfo) {
+  Recorder::instance().record(ncclGroupDepth, simInfo);
   ncclResult_t ret = ncclSuccess;
   NVTX3_FUNC_RANGE_IN(nccl_domain);
   NCCLCHECKGOTO(ncclGroupEndInternal(simInfo), ret, exit);