diff --git a/src/aiori-PMDK.c b/src/aiori-PMDK.c
index 5bb7add..4a3953b 100644
--- a/src/aiori-PMDK.c
+++ b/src/aiori-PMDK.c
@@ -98,13 +98,14 @@ static void *PMDK_Create(char * testFileName, IOR_param_t * param){
       perror("pmem_map_file");
       MPI_CHECK(MPI_Abort(MPI_COMM_WORLD, -1), "MPI_Abort() error");
     }
-
+    
     if(!is_pmem){
       fprintf(stdout, "\n is_pmem is %d\n",is_pmem);
       fprintf(stdout, "\npmem_map_file thinks the hardware being used is not pmem\n");
       MPI_CHECK(MPI_Abort(MPI_COMM_WORLD, -1), "MPI_Abort() error");
     }
 
+
     
     return((void *)pmemaddr);
 } /* PMDK_Create() */
@@ -137,12 +138,12 @@ static void *PMDK_Open(char * testFileName, IOR_param_t * param){
       fprintf(stdout, "\n %ld %ld\n",open_length, mapped_len);
       MPI_CHECK(MPI_Abort(MPI_COMM_WORLD, -1), "MPI_Abort() error");
     }
-
+    
     if(!is_pmem){
       fprintf(stdout, "pmem_map_file thinks the hardware being used is not pmem\n");
       MPI_CHECK(MPI_Abort(MPI_COMM_WORLD, -1), "MPI_Abort() error");
     }
-
+   
     return((void *)pmemaddr);
 } /* PMDK_Open() */
 
@@ -184,9 +185,7 @@ static IOR_offset_t PMDK_Xfer(int access, void *file, IOR_size_t * buffer,
 
 static void PMDK_Fsync(void *fd, IOR_param_t * param)
 {
-  size_t open_length;
-  open_length = param->transferSize;
-  pmem_persist(&fd, open_length);
+  pmem_drain();
 } /* PMDK_Fsync() */