diff --git a/install.sh b/install.sh
index 42859bd48b..eaad65bf14 100755
--- a/install.sh
+++ b/install.sh
@@ -301,6 +301,14 @@ if ($npkit_enabled); then
     -DENABLE_NPKIT_EVENT_SEND_RECV_SEND_EXIT \
     -DENABLE_NPKIT_EVENT_SEND_RECV_RECV_ENTRY \
     -DENABLE_NPKIT_EVENT_SEND_RECV_RECV_EXIT \
+    -DENABLE_NPKIT_EVENT_ALL_GATHER_RING_ENTRY \
+    -DENABLE_NPKIT_EVENT_ALL_GATHER_RING_EXIT \
+    -DENABLE_NPKIT_EVENT_ALL_GATHER_RING_SEND_ENTRY \
+    -DENABLE_NPKIT_EVENT_ALL_GATHER_RING_SEND_EXIT \
+    -DENABLE_NPKIT_EVENT_ALL_GATHER_RING_RECV_COPY_SEND_ENTRY \
+    -DENABLE_NPKIT_EVENT_ALL_GATHER_RING_RECV_COPY_SEND_EXIT \
+    -DENABLE_NPKIT_EVENT_ALL_GATHER_RING_DIRECT_RECV_ENTRY \
+    -DENABLE_NPKIT_EVENT_ALL_GATHER_RING_DIRECT_RECV_EXIT \
     -DENABLE_NPKIT_PRIM_COLLECT_DATA_PROCESS_TIME"
 fi
 
diff --git a/src/collectives/device/all_gather.h b/src/collectives/device/all_gather.h
index dbfca9b082..b27c7c6513 100644
--- a/src/collectives/device/all_gather.h
+++ b/src/collectives/device/all_gather.h
@@ -48,6 +48,13 @@ namespace {
     }
 #endif
 
+#if defined(ENABLE_NPKIT) && defined(ENABLE_NPKIT_EVENT_ALL_GATHER_RING_ENTRY)
+    if (tid == 0) {
+      NpKit::CollectGpuEvent(NPKIT_EVENT_ALL_GATHER_RING_ENTRY, size*sizeof(T), 0, NPKIT_GET_GPU_TIMESTAMP(),
+          ncclShmem.comm.npKitEventCollectContexts + npKitCtxIdx);
+    }
+#endif
+
     T *inputBuf = (T*)args->sendbuff;
     T *outputBuf = (T*)args->recvbuff;
     Primitives<T, RedOp, FanSymmetric<1>, 0, Proto, 0> prims
@@ -82,12 +89,35 @@ namespace {
       rankDest = ringRanks[0];
       offset = chunkOffset + rankDest * size;
 
+#if defined(ENABLE_NPKIT) && defined(ENABLE_NPKIT_EVENT_ALL_GATHER_RING_SEND_ENTRY)
+      if (tid == 0) {
+        NpKit::CollectGpuEvent(NPKIT_EVENT_ALL_GATHER_RING_SEND_ENTRY, nelem*sizeof(T), 0, NPKIT_GET_GPU_TIMESTAMP(),
+            ncclShmem.comm.npKitEventCollectContexts + npKitCtxIdx);
+        prims.npKitDataProcessTotalTime = 0;
+      }
+#endif
+
       if (inputBuf + chunkOffset == outputBuf + offset) { // In place
         prims.directSend(chunkOffset, offset, nelem);
       } else {
         prims.directCopySend(chunkOffset, offset, offset, nelem);
       }
 
+#if defined(ENABLE_NPKIT) && defined(ENABLE_NPKIT_EVENT_ALL_GATHER_RING_SEND_EXIT)
+      if (tid == 0) {
+        NpKit::CollectGpuEvent(NPKIT_EVENT_ALL_GATHER_RING_SEND_EXIT, nelem*sizeof(T), prims.npKitDataProcessTotalTime, NPKIT_GET_GPU_TIMESTAMP(),
+            ncclShmem.comm.npKitEventCollectContexts + npKitCtxIdx);
+      }
+#endif
+
+#if defined(ENABLE_NPKIT) && defined(ENABLE_NPKIT_EVENT_ALL_GATHER_RING_RECV_COPY_SEND_ENTRY)
+      if (tid == 0 && nranks > 2) {
+        NpKit::CollectGpuEvent(NPKIT_EVENT_ALL_GATHER_RING_RECV_COPY_SEND_ENTRY, nelem*(nranks-2)*sizeof(T), 0, NPKIT_GET_GPU_TIMESTAMP(),
+            ncclShmem.comm.npKitEventCollectContexts + npKitCtxIdx);
+        prims.npKitDataProcessTotalTime = 0;
+      }
+#endif
+
       // k-2 steps: copy to next GPU
       for (int j=1; j<nranks-1; ++j) {
         rankDest = ringRanks[nranks-j];
@@ -96,13 +126,43 @@ namespace {
         prims.directRecvCopySend(offset, offset, nelem);
       }
 
+#if defined(ENABLE_NPKIT) && defined(ENABLE_NPKIT_EVENT_ALL_GATHER_RING_RECV_COPY_SEND_EXIT)
+      if (tid == 0 && nranks > 2) {
+        NpKit::CollectGpuEvent(NPKIT_EVENT_ALL_GATHER_RING_RECV_COPY_SEND_EXIT, nelem*(nranks-2)*sizeof(T), prims.npKitDataProcessTotalTime, NPKIT_GET_GPU_TIMESTAMP(),
+            ncclShmem.comm.npKitEventCollectContexts + npKitCtxIdx);
+      }
+#endif
+
       // Make final copy from buffer to dest.
       rankDest = ringRanks[1];
       offset = chunkOffset + rankDest * size;
 
+#if defined(ENABLE_NPKIT) && defined(ENABLE_NPKIT_EVENT_ALL_GATHER_RING_DIRECT_RECV_ENTRY)
+      if (tid == 0) {
+        NpKit::CollectGpuEvent(NPKIT_EVENT_ALL_GATHER_RING_DIRECT_RECV_ENTRY, nelem*sizeof(T), 0, NPKIT_GET_GPU_TIMESTAMP(),
+            ncclShmem.comm.npKitEventCollectContexts + npKitCtxIdx);
+        prims.npKitDataProcessTotalTime = 0;
+      }
+#endif
       // Final wait/copy.
       prims.directRecv(offset, nelem);
+
+#if defined(ENABLE_NPKIT) && defined(ENABLE_NPKIT_EVENT_ALL_GATHER_RING_DIRECT_RECV_EXIT)
+      if (tid == 0) {
+        NpKit::CollectGpuEvent(NPKIT_EVENT_ALL_GATHER_RING_DIRECT_RECV_EXIT, nelem*sizeof(T), prims.npKitDataProcessTotalTime, NPKIT_GET_GPU_TIMESTAMP(),
+            ncclShmem.comm.npKitEventCollectContexts + npKitCtxIdx);
+      }
+#endif
+
+
+
     }
+#if defined(ENABLE_NPKIT) && defined(ENABLE_NPKIT_EVENT_ALL_GATHER_RING_EXIT)
+    if (tid == 0) {
+      NpKit::CollectGpuEvent(NPKIT_EVENT_ALL_GATHER_RING_EXIT, size*sizeof(T), 0, NPKIT_GET_GPU_TIMESTAMP(),
+          ncclShmem.comm.npKitEventCollectContexts + npKitCtxIdx);
+    }
+#endif
   }
 }
 
diff --git a/src/include/npkit/npkit_event.h b/src/include/npkit/npkit_event.h
index fd1f940a88..c3892684c4 100644
--- a/src/include/npkit/npkit_event.h
+++ b/src/include/npkit/npkit_event.h
@@ -100,4 +100,14 @@
 
 #define NPKIT_PRIM_COLLECT_DATA_PROCESS_TIME                    0x4F
 
+#define NPKIT_EVENT_ALL_GATHER_RING_ENTRY                       0x50
+#define NPKIT_EVENT_ALL_GATHER_RING_EXIT                        0x51
+#define NPKIT_EVENT_ALL_GATHER_RING_SEND_ENTRY                  0x52
+#define NPKIT_EVENT_ALL_GATHER_RING_SEND_EXIT                   0x53
+#define NPKIT_EVENT_ALL_GATHER_RING_RECV_COPY_SEND_ENTRY        0x54
+#define NPKIT_EVENT_ALL_GATHER_RING_RECV_COPY_SEND_EXIT         0x55
+#define NPKIT_EVENT_ALL_GATHER_RING_DIRECT_RECV_ENTRY           0x56
+#define NPKIT_EVENT_ALL_GATHER_RING_DIRECT_RECV_EXIT            0x57
+
+
 #endif