diff --git a/Makefile b/Makefile
index cbbd9d0..d38d1fb 100644
--- a/Makefile
+++ b/Makefile
@@ -6,8 +6,8 @@ USE_ILUVATAR_COREX ?= 0
 USE_CAMBRICON ?= 0
 
 # set to empty if not provided
-DEVICE_HOME ?= 
-CCL_HOME ?= 
+DEVICE_HOME ?=
+CCL_HOME ?=
 
 ifeq ($(strip $(DEVICE_HOME)),)
 	ifeq ($(USE_NVIDIA), 1)
@@ -15,7 +15,7 @@ ifeq ($(strip $(DEVICE_HOME)),)
 	else ifeq ($(USE_ILUVATAR_COREX), 1)
 		DEVICE_HOME = /usr/local/corex
 	else ifeq ($(USE_CAMBRICON), 1)
-		DEVICE_HOME = /torch/neuware_home
+		DEVICE_HOME = $(NEUWARE_HOME)
 	else
 		DEVICE_HOME = /usr/local/cuda
 	endif
@@ -27,7 +27,7 @@ ifeq ($(strip $(CCL_HOME)),)
 	else ifeq ($(USE_ILUVATAR_COREX), 1)
 		CCL_HOME = /usr/local/corex
 	else ifeq ($(USE_CAMBRICON), 1)
-		CCL_HOME = /torch/neuware_home
+		CCL_HOME = $(NEUWARE_HOME)
 	else
 		CCL_HOME = /usr/local/nccl/build
 	endif
diff --git a/flagcx/adaptor/cncl_adaptor.cc b/flagcx/adaptor/cncl_adaptor.cc
index 03a4942..24603ec 100644
--- a/flagcx/adaptor/cncl_adaptor.cc
+++ b/flagcx/adaptor/cncl_adaptor.cc
@@ -58,8 +58,11 @@ flagcxResult_t cnclAdaptorCommInitRank(flagcxHomoComm_t *comm, int nranks, flagc
     if (*comm == NULL) {
         flagcxCalloc(comm, 1);
     }
-    return (flagcxResult_t)cnclInitComms(&(*comm)->base, 1/*num_comm*/, &rank/*dev_list*/,
-                                           &rank/*rank_list*/, nranks, (cnclCliqueId *)commId);
+    unsigned int device_count = 0;
+    DEVCHECK(cnrtGetDeviceCount(&device_count));
+    int dev_id = rank % device_count;
+    return (flagcxResult_t)c2f_ret_map[cnclInitComms(&(*comm)->base, 1/*num_comm*/, &dev_id/*dev_list*/,
+                                       &rank/*rank_list*/, nranks, (cnclCliqueId *)commId)];
 }
 
 //TODO: unsupported
diff --git a/flagcx/adaptor/mlu_adaptor.cc b/flagcx/adaptor/mlu_adaptor.cc
index 5cef4f4..e7b6cda 100644
--- a/flagcx/adaptor/mlu_adaptor.cc
+++ b/flagcx/adaptor/mlu_adaptor.cc
@@ -17,7 +17,7 @@ flagcxResult_t mluAdaptorDeviceMemcpy(void *dst, void *src, size_t size, flagcxM
     if (stream == NULL) {
         DEVCHECK(cnrtMemcpy(dst, src, size, memcpy_type_map[type]));
     } else {
-        DEVCHECK(cnrtMemcpyAsync_V3(dst, src, size, stream->base, memcpy_type_map[type]));
+        DEVCHECK(cnrtMemcpyAsync_V2(dst, src, size, stream->base, memcpy_type_map[type]));
     }
     return flagcxSuccess;
 }
@@ -73,12 +73,18 @@ flagcxResult_t mluAdaptorGetVendor(char *vendor) {
 }
 
 flagcxResult_t mluAdaptorGdrMemAlloc(void **ptr, size_t size, void *memHandle) {
-    // TODO: Implement GDR memory allocation
+    if (ptr == NULL) {
+        return flagcxInvalidArgument;
+    }
+    DEVCHECK(cnrtMalloc(ptr, size));
     return flagcxSuccess;
 }
 
 flagcxResult_t mluAdaptorGdrMemFree(void *ptr, void *memHandle) {
-    // TODO: Implement GDR memory free
+    if (ptr == NULL) {
+        return flagcxSuccess;
+    }
+    DEVCHECK(cnrtFree(ptr));
     return flagcxSuccess;
 }