+/* Copyright (c) 2019-2023. The SimGrid Team. All rights reserved. */
+
+/* This program is free software; you can redistribute it and/or modify it
+ * under the terms of the license (GNU LGPL) which comes with this package. */
+
#include "mpi.h"
#include <stdio.h>
#include <stdlib.h>
int main( int argc, char *argv[] )
{
int errs = 0;
- int size, rank, i, *buf, count;
+ int size;
+ int rank;
+ int* buf;
+ int count;
MPI_File fh;
MPI_Comm comm;
MPI_Status status;
-
+
MPI_Init( &argc, &argv );
-
+
comm = MPI_COMM_WORLD;
- MPI_File_open( comm, (char*)"/scratch/lib/libsimgrid.so.3.6.2", MPI_MODE_RDWR | MPI_MODE_CREATE | MPI_MODE_DELETE_ON_CLOSE, MPI_INFO_NULL, &fh );
+ MPI_File_open( comm, (char*)"/scratch/testfile", MPI_MODE_RDWR | MPI_MODE_CREATE | MPI_MODE_DELETE_ON_CLOSE, MPI_INFO_NULL, &fh );
MPI_Comm_size( comm, &size );
MPI_Comm_rank( comm, &rank );
- buf = (int *)malloc( 10+size * sizeof(int) );
+ buf = (int *)malloc( sizeof(int) );
buf[0] = rank;
-
+
+ MPI_File_seek_shared( fh, 0, MPI_SEEK_SET );
+ MPI_Barrier(comm);
+
+ memset( &status, 0xff, sizeof(MPI_Status) );
+ MPI_File_write_shared( fh, buf, 1, MPI_INT, &status );
+ MPI_Get_count( &status, MPI_INT, &count );
+ if (count != 1) {
+ errs++;
+ fprintf( stderr, "Count not one (%d) on write\n", count );fflush(stderr);
+ }
+
/* Write nothing (check status) */
memset( &status, 0xff, sizeof(MPI_Status) );
- MPI_File_write( fh, buf, 0, MPI_INT, &status );
+ MPI_File_write_shared( fh, buf, 0, MPI_INT, &status );
MPI_Get_count( &status, MPI_INT, &count );
if (count != 0) {
errs++;
fprintf( stderr, "Count not zero (%d) on write\n", count );fflush(stderr);
}
-
- MPI_Barrier( comm );
- MPI_File_seek_shared( fh, 0, MPI_SEEK_SET );
- for (i=0; i<size; i++) buf[i] = -1;
- MPI_File_read_ordered( fh, buf, 10, MPI_INT, &status );
MPI_Barrier(comm);
MPI_File_seek_shared( fh, 0, MPI_SEEK_SET );
+ MPI_Barrier(comm);
memset( &status, 0xff, sizeof(MPI_Status) );
MPI_File_read_shared( fh, buf, 1, MPI_INT, &status );
errs++;
fprintf( stderr, "Count not zero (%d) on read shared\n", count );fflush(stderr);
}
-
- MPI_Barrier(comm);
- MPI_File_seek_shared( fh, 0, MPI_SEEK_SET );
-
- memset( &status, 0xff, sizeof(MPI_Status) );
- MPI_File_write_shared( fh, buf, 1, MPI_INT, &status );
- if (count != 1) {
- errs++;
- fprintf( stderr, "Count not zero (%d) on write\n", count );fflush(stderr);
- }
free( buf );
MPI_File_close( &fh );
-
+
MPI_Finalize();
return errs;
-}
\ No newline at end of file
+}