Upgrade write_vtu_in_parallel based on mpi large IO update

dealii · May 5, 2022 · 22d3d98 · 22d3d98
1 parent 2b8ac0f
commit 22d3d98
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/source/base/data_out_base.cc b/source/base/data_out_base.cc
@@ -7717,7 +7717,7 @@ DataOutInterface<dim, spacedim>::write_vtu_in_parallel(
       header_size = ss.str().size();
       // Write the header on rank 0 and automatically move the
       // shared file pointer to the location after header;
-      ierr = MPI_File_write_shared(
+      ierr = MPI_File_write_at(
         fh, ss.str().c_str(), header_size, MPI_CHAR, MPI_STATUS_IGNORE);
       AssertThrowMPI(ierr);
     }
@@ -7741,7 +7741,7 @@ DataOutInterface<dim, spacedim>::write_vtu_in_parallel(
                                   vtk_flags,
                                   ss);
 
-    ierr = MPI_File_write_ordered(
+    ierr = MPI_File_write_at_all_c(
       fh, ss.str().c_str(), ss.str().size(), MPI_CHAR, MPI_STATUS_IGNORE);
     AssertThrowMPI(ierr);
   }
@@ -7752,7 +7752,7 @@ DataOutInterface<dim, spacedim>::write_vtu_in_parallel(
       std::stringstream ss;
       DataOutBase::write_vtu_footer(ss);
       unsigned int footer_size = ss.str().size();
-      ierr = MPI_File_write_shared(
+      ierr = MPI_File_write_at(
         fh, ss.str().c_str(), footer_size, MPI_CHAR, MPI_STATUS_IGNORE);
       AssertThrowMPI(ierr);
     }