--- /dev/null
+/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
+/*
+ * (C) 2008 by Argonne National Laboratory.
+ * See COPYRIGHT in top-level directory.
+ */
+#include "mpi.h"
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include "mpitest.h"
+
+/*
+static char MTEST_Descrip[] = "Test file views with MPI_Type_create_resized";
+*/
+
+int main(int argc, char **argv)
+{
+ int i, nprocs, len, mpi_errno, buf[2], newbuf[4];
+ int errs = 0;
+ MPI_Offset size;
+ MPI_Aint lb, extent;
+ MPI_File fh;
+ char *filename;
+ MPI_Datatype newtype, newtype1;
+
+ MTest_Init(&argc, &argv);
+ MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
+
+ if (nprocs != 1) {
+ fprintf(stderr, "Run this program on 1 process\n");
+ MPI_Abort(MPI_COMM_WORLD, 1);
+ }
+
+ i = 1;
+ while ((i < argc) && strcmp("-fname", *argv)) {
+ i++;
+ argv++;
+ }
+ if (i >= argc) {
+ len = 8;
+ filename = (char *) malloc(len + 10);
+ strcpy(filename, "/scratch/testfile");
+ /*
+ * fprintf(stderr, "\n*# Usage: resized -fname filename\n\n");
+ * MPI_Abort(MPI_COMM_WORLD, 1);
+ */
+ }
+ else {
+ argv++;
+ len = (int) strlen(*argv);
+ filename = (char *) malloc(len + 1);
+ strcpy(filename, *argv);
+ }
+
+ MPI_File_delete(filename, MPI_INFO_NULL);
+
+ /* create a resized type comprising an integer with an lb at sizeof(int) and extent = 3*sizeof(int) */
+ lb = sizeof(int);
+ extent = 3 * sizeof(int);
+ MPI_Type_create_resized(MPI_INT, lb, extent, &newtype1);
+
+ MPI_Type_commit(&newtype1);
+ MPI_Type_create_resized(newtype1, lb, extent, &newtype);
+ MPI_Type_commit(&newtype);
+
+ /* initialize the file */
+ MPI_File_open(MPI_COMM_WORLD, filename, MPI_MODE_CREATE | MPI_MODE_RDWR, MPI_INFO_NULL, &fh);
+ for (i = 0; i < 4; i++)
+ newbuf[i] = 55;
+ MPI_File_write(fh, newbuf, 4, MPI_INT, MPI_STATUS_IGNORE);
+ MPI_File_close(&fh);
+
+ /* write 2 ints into file view with resized type */
+
+ buf[0] = 10;
+ buf[1] = 20;
+
+ MPI_File_open(MPI_COMM_WORLD, filename, MPI_MODE_CREATE | MPI_MODE_RDWR, MPI_INFO_NULL, &fh);
+
+ mpi_errno = MPI_File_set_view(fh, 0, MPI_INT, newtype, (char *) "native", MPI_INFO_NULL);
+ if (mpi_errno != MPI_SUCCESS)
+ errs++;
+
+ MPI_File_write(fh, buf, 2, MPI_INT, MPI_STATUS_IGNORE);
+
+ MPI_File_close(&fh);
+
+
+ /* read back file view with resized type and verify */
+
+ MPI_File_open(MPI_COMM_WORLD, filename, MPI_MODE_RDONLY, MPI_INFO_NULL, &fh);
+
+ mpi_errno = MPI_File_set_view(fh, 0, MPI_INT, newtype, (char *) "native", MPI_INFO_NULL);
+ if (mpi_errno != MPI_SUCCESS)
+ errs++;
+
+ for (i = 0; i < 4; i++)
+ newbuf[i] = 100;
+ MPI_File_read(fh, newbuf, 2, MPI_INT, MPI_STATUS_IGNORE);
+/* if ((newbuf[0] != 10) || (newbuf[1] != 20) || (newbuf[2] != 100) || (newbuf[3] != 100)) {*/
+/* errs++;*/
+/* fprintf(stderr,*/
+/* "newbuf[0] is %d, should be 10,\n newbuf[1] is %d, should be 20\n newbuf[2] is %d, should be 100,\n newbuf[3] is %d, should be 100,\n",*/
+/* newbuf[0], newbuf[1], newbuf[2], newbuf[3]);*/
+/* }*/
+
+ MPI_File_close(&fh);
+
+ /* read file back and verify */
+
+ MPI_File_open(MPI_COMM_WORLD, filename, MPI_MODE_RDONLY, MPI_INFO_NULL, &fh);
+
+ MPI_File_get_size(fh, &size);
+ if (size != 4 * sizeof(int)) {
+ errs++;
+ fprintf(stderr, "file size is %lld, should be %d\n", size, (int) (4 * sizeof(int)));
+ }
+
+ for (i = 0; i < 4; i++)
+ newbuf[i] = 100;
+ MPI_File_read(fh, newbuf, 4, MPI_INT, MPI_STATUS_IGNORE);
+/* if ((newbuf[0] != 10) || (newbuf[3] != 20) || (newbuf[1] != 55) || (newbuf[2] != 55)) {*/
+/* errs++;*/
+/* fprintf(stderr,*/
+/* "newbuf[0] is %d, should be 10,\n newbuf[1] is %d, should be 55,\n newbuf[2] is %d, should be 55,\n newbuf[3] is %d, should be 20\n",*/
+/* newbuf[0], newbuf[1], newbuf[2], newbuf[3]);*/
+/* }*/
+
+ MPI_File_close(&fh);
+
+ MPI_Type_free(&newtype1);
+ MPI_Type_free(&newtype);
+ free(filename);
+ MTest_Finalize(errs);
+ MPI_Finalize();
+ return 0;
+}
