PnetCDF driver: fix file open mode for reading decomposition files

Parallel-NetCDF · Nov 4, 2024 · 23c6fde · 23c6fde
1 parent 1fb7c5d
commit 23c6fde
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/drivers/e3sm_io_driver_pnc.cpp b/src/drivers/e3sm_io_driver_pnc.cpp
@@ -92,7 +92,7 @@ int e3sm_io_driver_pnc::open (std::string path, MPI_Comm comm, MPI_Info info, in
     MPI_Offset size;
     MPI_Offset put_buffer_size_limit;
 
-    err = ncmpi_open (comm, path.c_str (), NC_64BIT_DATA, info, fid);
+    err = ncmpi_open (comm, path.c_str (), NC_NOWRITE, info, fid);
     CHECK_NCERR
 
     put_buffer_size_limit = 10485760;