Nvtx support (#1076)

* NVTX support

cmake/Generator.cmake

@@ -21,7 +21,6 @@
 # SOFTWARE.
 
 set(ALL_PARAMS "ALL_COLLS" "ALL_ALGOS" "ALL_PROTOS" "ALL_REDOPS" "ALL_TYPES")
-
 set(ALL_COLLS "AllGather" "AllReduce" "AllToAllPivot" "Broadcast" "Reduce" "ReduceScatter" "SendRecv")
 set(ALL_ALGOS "TREE" "RING" "COLLNET_DIRECT" "COLLNET_CHAIN")
 set(ALL_PROTOS "LL" "LL128" "SIMPLE")