diff --git a/src/graph/connect.cc b/src/graph/connect.cc
index 2c211df88c..222acbb481 100644
--- a/src/graph/connect.cc
+++ b/src/graph/connect.cc
@@ -68,8 +68,6 @@ ncclResult_t ncclTopoPreset(struct ncclComm* comm,
 
 ncclResult_t ncclTreeBasePostset(struct ncclComm* comm,
     struct ncclTopoGraph* treeGraph) {
-  // int rank = comm->rank;
-  // int localRanks = comm->topo->nodes[GPU].count;
   int nChannels = comm->nChannels;
   int ring[NCCL_TOPO_MAX_NODES][NCCL_TOPO_MAX_NODES];
   int xLimit = 0, yLimit = 0;
diff --git a/src/graph/rome_models.cc b/src/graph/rome_models.cc
index 53d9e804aa..85a63e8df1 100644
--- a/src/graph/rome_models.cc
+++ b/src/graph/rome_models.cc
@@ -751,14 +751,10 @@ ncclResult_t parseGraphLight(const char* str, struct ncclTopoSystem* system, str
   int nets[NCCL_TOPO_MAX_NODES*2];
   int net_offset = 0, net_count = 0;
   int ngpus = system->nodes[GPU].count;
-  // int nnets = system->nodes[NET].count;
   int x=0, y=0;
-  // |
-  // from | to | x to y
   do {
     int digit = str[offset] - '0';
     if (digit >= 0 && digit <= 9) {
-      // offset++; // all the offsets
       switch (status) {
         case 0:
           gpus[gpu] = digit;
@@ -773,7 +769,7 @@ ncclResult_t parseGraphLight(const char* str, struct ncclTopoSystem* system, str
         gpu++;
       }
       status = 0;
-      if (str[offset] == '|' || str[offset] == 0) { // bump y, and x and make x 0 after
+      if (str[offset] == '|' || str[offset] == 0) {
         for (int r=0; r<gpu; r++) {
           int g = gpus[r];
           // remap if needed
@@ -793,7 +789,6 @@ ncclResult_t parseGraphLight(const char* str, struct ncclTopoSystem* system, str
         }
         y++;
         graph->treeBase[y][x] = -1;
-        // y=0;
         x++;
         gpu=0;
       }
diff --git a/src/graph/tuning.cc b/src/graph/tuning.cc
index 259bb8a4bd..d79445ca2d 100644
--- a/src/graph/tuning.cc
+++ b/src/graph/tuning.cc
@@ -281,7 +281,6 @@ ncclResult_t ncclTopoTuneModel(struct ncclComm* comm, int minCompCap, int maxCom
       nNodes;
 
     for (int a=0; a<NCCL_NUM_ALGORITHMS; a++) {
-      // if ((coll != ncclFuncAllReduce || nNodes == 1) && a != NCCL_ALGO_RING) continue;
       if ((coll != ncclFuncAllReduce) && a != NCCL_ALGO_RING) continue;
 
       for (int p=0; p<NCCL_NUM_PROTOCOLS; p++) {