diff --git a/src/graph/rome_models.cc b/src/graph/rome_models.cc
index 707b680781..36bebe3af9 100644
--- a/src/graph/rome_models.cc
+++ b/src/graph/rome_models.cc
@@ -552,7 +552,7 @@ static struct rcclRomeModel rome_model_79 = {
   .gdrLevel = { },
   .pattern = "4040",
   .ringBase = "0 1 2 3 4 5 6 7|0 1 2 3 4 5 7 6|0 2 4 1 3 6 5 7|0 2 4 6 1 7 3 5|0 3 1 5 2 7 4 6|0 3 5 1 6 2 7 4|0 4 1 7 3 6 2 5|7 6 5 4 3 2 1 0|6 7 5 4 3 2 1 0|7 5 6 3 1 4 2 0|5 3 7 1 6 4 2 0|6 4 7 2 5 1 3 0|4 7 2 6 1 5 3 0|5 2 6 3 7 1 4 0|0 1 2 3 4 5 6 7|0 1 2 3 4 5 7 6|0 2 4 1 3 6 5 7|0 2 4 6 1 7 3 5|0 3 1 5 2 7 4 6|0 3 5 1 6 2 7 4|0 4 1 7 3 6 2 5|7 6 5 4 3 2 1 0|6 7 5 4 3 2 1 0|7 5 6 3 1 4 2 0|5 3 7 1 6 4 2 0|6 4 7 2 5 1 3 0|4 7 2 6 1 5 3 0|5 2 6 3 7 1 4 0",
-  .options = "noCpuCheck=1,mscclEnabled=1",
+  .options = "noCpuCheck=1,mscclEnabled=1,tuning=5",
 };
 
 static struct rcclRomeModel rome_model_80 = {
@@ -578,7 +578,7 @@ static struct rcclRomeModel rome_model_81 = {
   .gdrLevel = { PATH_PXB, PATH_PHB, PATH_PHB, PATH_PHB, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_PHB, PATH_PXB, PATH_PHB, PATH_PHB, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_PHB, PATH_PHB, PATH_PXB, PATH_PHB, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_PHB, PATH_PHB, PATH_PHB, PATH_PXB, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_PXB, PATH_PHB, PATH_PHB, PATH_PHB, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_PHB, PATH_PXB, PATH_PHB, PATH_PHB, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_PHB, PATH_PHB, PATH_PXB, PATH_PHB, PATH_SYS, PATH_SYS, PATH_SYS, PATH_SYS, PATH_PHB, PATH_PHB, PATH_PHB, PATH_PXB, },
   .pattern = "4444",
   .ringBase = "N0 0 1 2 3 4 5 6 7 N7|N1 1 0 2 4 3 5 7 6 N6|N2 2 5 0 3 7 1 6 4 N4|N3 3 6 1 5 2 7 4 0 N0|N4 4 7 0 6 5 1 3 2 N2|N5 5 4 6 3 0 7 2 1 N1|N6 6 2 0 4 1 7 5 3 N3|N7 7 3 1 4 2 6 0 5 N5|N0 0 1 2 3 4 5 6 7 N7|N1 1 0 2 4 3 5 7 6 N6|N2 2 5 0 3 7 1 6 4 N4|N3 3 6 1 5 2 7 4 0 N0|N4 4 7 0 6 5 1 3 2 N2|N5 5 4 6 3 0 7 2 1 N1|N6 6 2 0 4 1 7 5 3 N3|N7 7 3 1 4 2 6 0 5 N5",
-  .options = "noCpuCheck=1",
+  .options = "noCpuCheck=1,tuning=5",
 };
 
 static struct rcclRomeModel romeTopoModels[] = {
diff --git a/src/graph/tuning.cc b/src/graph/tuning.cc
index 47f57f7e65..fc9e7aa950 100644
--- a/src/graph/tuning.cc
+++ b/src/graph/tuning.cc
@@ -221,12 +221,43 @@ static struct tuningModel tuning_model_4 {
   },
 };
 
+static struct tuningModel tuning_model_5 {
+  .hwLat = {
+    /* NVLINK */
+    { /* Tree (LL/LL128/Simple)*/ { 0.8, 0.0, 2.5 }, /* Ring (LL/LL128/Simple)*/ { 0.8, 0.0, 3.6 }, /* CollNetDirect (Simple)*/ { 0.0, 0.0, 0.8 }, /* CollNetChain (Simple)*/ { 0.0, 0.0, 0.0 }, /* NVLS */ { 0, 0, 0 }, /* NVLS Tree */ { 0, 0, 0 } },
+    /* PCI */
+    { /* Tree (LL/LL128/Simple)*/ { 2.2, 2.2, 5.7 }, /* Ring (LL/LL128/Simple)*/ { 2.2, 2.2, 5.7 }, /* CollNetDirect (Simple)*/ { 0.0, 0.0, 5.7 }, /* CollNetChain (Simple)*/ { 0.0, 0.0, 5.7 }, /* NVLS */ { 0, 0, 0 }, /* NVLS Tree */ { 0, 0, 0 } },
+    /* NET */
+    { /* Tree (LL/LL128/Simple)*/ { 12.5, 0.0, 22.4 }, /* Ring (LL/LL128/Simple)*/ { 9.5, 0.0, 19.8 }, /* CollNetDirect (Simple)*/ { 0.0, 0.0, 12.5 }, /* CollNetChain (Simple)*/ { 0.0, 0.0, 0.0 }, /* NVLS */ { 0, 0, 0 }, /* NVLS Tree */ { 0, 0, 0 } },
+  },
+
+  .bwRatio = {
+    /* 2 nodes */
+    { /* Tree (LL/LL128/Simple)*/ { 0.41, 0.00, 1.00 }, /* Ring (LL/LL128/Simple)*/ { 0.41, 0.00, 1.00 }, /* CollNetDirect (Simple)*/ { 0.00, 0.00, 1.00 }, /* CollNetChain (Simple)*/ { 0.00, 0.00, 1.00 }, /* NVLS */ { 0, 0, 0 }, /* NVLS Tree */ { 0, 0, 0 } },
+    /* more than 2 nodes */
+    { /* Tree (LL/LL128/Simple)*/ { 0.41, 0.00, 0.86 }, /* Ring (LL/LL128/Simple)*/ { 0.41, 0.00, 1.00 }, /* CollNetDirect (Simple)*/ { 0.00, 0.00, 1.00 }, /* CollNetChain (Simple)*/ { 0.00, 0.00, 1.00 }, /* NVLS */ { 0, 0, 0 }, /* NVLS Tree */ { 0, 0, 0 } },
+  },
+
+  .treeCorrectionFactor = {
+    { 0.1, 0.1, 0.1, 0.1, 0.1, 1.0, 1.0, 0.8, 0.1, 0.4, 0.5, 1.0, 0.6, 0.4, 0.6, 0.1, 0.3, 0.4, 0.4, 0.3, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, },
+    { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, },
+    { 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 1.0, 1.0, 1.0, 0.4, 1.0, 1.0, 1.0, 0.2, 0.7, 1.0, 1.0, 1.0, 0.8, 0.7, 0.7, 0.8, 0.8, 0.8, 0.9, },
+  },
+
+  .ringCorrectionFactor = {
+    { 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 1.0, 0.1, 0.2, 0.2, 0.1, 0.5, 0.8, 1.0, 0.2, 0.4, 0.5, 0.4, 0.4, 0.3, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, },
+    { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, },
+    { 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.7, 0.1, 0.1, 0.1, 0.1, 0.1, 1.0, 1.0, 1.0, 0.9, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, },
+  },
+};
+
 static struct tuningModel rcclTuningModel[] = {
   tuning_model_0,
   tuning_model_1,
   tuning_model_2,
   tuning_model_3,
   tuning_model_4,
+  tuning_model_5,
 };
 
 /* Array indexes used below */