diff --git a/include/kutacc.h b/include/kutacc.h
index 2f180a625fc1cb971045fa6bd93787fbbe3d6aa4..9d049e0ad417fa38cba876391530351a0886cbdb 100644
--- a/include/kutacc.h
+++ b/include/kutacc.h
@@ -52,8 +52,8 @@ kutacc_export extern int64_t world_size;
 kutacc_export extern int64_t rank;
 extern int64_t buffer_size;
 
-kutacc_export void kutacc_initialize(int64_t _world_size, int64_t _rank, int64_t _buffer_size);
-kutacc_export void kutacc_finalize();
+kutacc_export void kutacc_comm_init(int64_t _world_size, int64_t _rank, int64_t _buffer_size);
+kutacc_export void kutacc_comm_fini();
 
 /**
  * @brief transpose
diff --git a/src/comm/kupl.cpp b/src/comm/kupl.cpp
index ecb41a9dee333d8a2be2348813dfb4d0f21a4898..7364ddee0c2f5c03f1b7102ea57d90d3df34cec3 100644
--- a/src/comm/kupl.cpp
+++ b/src/comm/kupl.cpp
@@ -49,7 +49,7 @@ static int oob_allgather_callback(const void *sendbuf, void *recvbuf, int size,
     }
 }
 
-void kutacc_initialize(int64_t _world_size, int64_t _rank, int64_t _buffer_size)
+void kutacc_comm_init(int64_t _world_size, int64_t _rank, int64_t _buffer_size)
 {
     world_size = _world_size;
     rank = _rank;
@@ -63,7 +63,7 @@ void kutacc_initialize(int64_t _world_size, int64_t _rank, int64_t _buffer_size)
     KUPL_CHECK(kupl_shm_win_alloc((size_t)buffer_size, kupl_comm, &kupl_recvbuf, &kupl_recvbuf_win));
 }
 
-void kutacc_finalize()
+void kutacc_comm_fini()
 {
     KUPL_CHECK(kupl_shm_win_free(kupl_recvbuf_win));
     KUPL_CHECK(kupl_shm_comm_destroy(kupl_comm));