-#include "mpi.h"\r
-#include <stdio.h>\r
-#include <stdlib.h>\r
-#include <string.h>\r
-#include <memory.h>\r
-\r
-/* Test reading and writing zero bytes (set status correctly) */\r
-\r
-int main( int argc, char *argv[] )\r
-{\r
- int errs = 0;\r
- int size, rank, i, *buf, count;\r
- MPI_File fh;\r
- MPI_Comm comm;\r
- MPI_Status status;\r
- \r
- MPI_Init( &argc, &argv );\r
- \r
- comm = MPI_COMM_WORLD;\r
- 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 );\r
- MPI_Comm_size( comm, &size );\r
- MPI_Comm_rank( comm, &rank );\r
- buf = (int *)malloc( size * sizeof(int) );\r
- buf[0] = rank;\r
- \r
- /* Write to file */\r
- MPI_File_write_at( fh, sizeof(int)*rank, buf, 1, MPI_INT, &status );\r
- MPI_Get_count( &status, MPI_INT, &count );\r
- if (count != 1) {\r
- errs++;\r
- fprintf( stderr, "Wrong count (%d) on write_at\n", count );fflush(stderr);\r
- }\r
-\r
- /* Read nothing (check status) */\r
- memset( &status, 0xff, sizeof(MPI_Status) );\r
- MPI_File_read_at( fh, sizeof(int)*rank, buf, 0, MPI_INT, &status );\r
- MPI_Get_count( &status, MPI_INT, &count );\r
- if (count != 0) {\r
- errs++;\r
- fprintf( stderr, "Count not zero (%d) on read\n", count );fflush(stderr);\r
- }\r
-\r
- /* Write nothing (check status) */\r
- memset( &status, 0xff, sizeof(MPI_Status) );\r
- MPI_File_write_at( fh, sizeof(int)*rank, buf, 0, MPI_INT, &status );\r
- if (count != 0) {\r
- errs++;\r
- fprintf( stderr, "Count not zero (%d) on write\n", count );fflush(stderr);\r
- }\r
-\r
- MPI_Barrier( comm );\r
-\r
- for (i=0; i<size; i++) buf[i] = -1;\r
- MPI_File_read_at( fh, sizeof(int)*rank, buf, 1, MPI_INT, &status );\r
- // if (buf[0] != rank) {\r
- // errs++;\r
- // fprintf( stderr, "%d: buf = %d\n", rank, buf[0] );fflush(stderr);\r
- // }\r
- \r
- free( buf );\r
- MPI_File_close( &fh );\r
- \r
- MPI_Finalize();\r
- return errs;\r
+#include "mpi.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <memory.h>
+
+/* Test reading and writing zero bytes (set status correctly) */
+
+int main( int argc, char *argv[] )
+{
+ int errs = 0;
+ int size, rank, i, *buf, 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_Comm_size( comm, &size );
+ MPI_Comm_rank( comm, &rank );
+ buf = (int *)malloc( size * sizeof(int) );
+ buf[0] = rank;
+
+ /* Write to file */
+ MPI_File_write_at( fh, sizeof(int)*rank, buf, 1, MPI_INT, &status );
+ MPI_Get_count( &status, MPI_INT, &count );
+ if (count != 1) {
+ errs++;
+ fprintf( stderr, "Wrong count (%d) on write_at\n", count );fflush(stderr);
+ }
+
+ /* Read nothing (check status) */
+ memset( &status, 0xff, sizeof(MPI_Status) );
+ MPI_File_read_at( fh, sizeof(int)*rank, buf, 0, MPI_INT, &status );
+ MPI_Get_count( &status, MPI_INT, &count );
+ if (count != 0) {
+ errs++;
+ fprintf( stderr, "Count not zero (%d) on read\n", count );fflush(stderr);
+ }
+
+ /* Write nothing (check status) */
+ memset( &status, 0xff, sizeof(MPI_Status) );
+ MPI_File_write_at( fh, sizeof(int)*rank, buf, 0, MPI_INT, &status );
+ if (count != 0) {
+ errs++;
+ fprintf( stderr, "Count not zero (%d) on write\n", count );fflush(stderr);
+ }
+
+ MPI_Barrier( comm );
+
+ for (i=0; i<size; i++) buf[i] = -1;
+ MPI_File_read_at( fh, sizeof(int)*rank, buf, 1, MPI_INT, &status );
+ // if (buf[0] != rank) {
+ // errs++;
+ // fprintf( stderr, "%d: buf = %d\n", rank, buf[0] );fflush(stderr);
+ // }
+
+ free( buf );
+ MPI_File_close( &fh );
+
+ MPI_Finalize();
+ return errs;
}
\ No newline at end of file
