X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/16d2534d37e9f64cb4ea28fa797c004a9b57343e..3d5008e81ac9ae0a0a94334202996cf7249e97e9:/teshsuite/smpi/macro-partial-shared/macro-partial-shared.c

diff --git a/teshsuite/smpi/macro-partial-shared/macro-partial-shared.c b/teshsuite/smpi/macro-partial-shared/macro-partial-shared.c
index 6a21001c17..208e04d65b 100644
--- a/teshsuite/smpi/macro-partial-shared/macro-partial-shared.c
+++ b/teshsuite/smpi/macro-partial-shared/macro-partial-shared.c
@@ -1,40 +1,44 @@
-/* Copyright (c) 2009-2015. The SimGrid Team.
- * All rights reserved.                                                     */
+/* Copyright (c) 2017-2018. 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. */
 
-/* This example should be instructive to learn about SMPI_SHARED_CALL */
-
 #include <stdio.h>
 #include <mpi.h>
 #include <stdint.h>
 #include <inttypes.h>
 
-// Return the number of occurences of the given value between buf[start] and buf[stop-1].
-int count_all(uint8_t *buf, int start, int stop, uint8_t value) {
-  int occ = 0;
-  for(int i = start ; i < stop ; i++) {
-    if(buf[i] == value) {
+// Set the elements between buf[start] and buf[stop-1] to (i+value)%256
+static void set(uint8_t *buf, size_t start, size_t stop, uint8_t value) {
+  for(size_t i = start; i < stop; i++) {
+    buf[i] = (i+value)%256;
+  }
+}
+
+// Return the number of times that an element is equal to (i+value)%256 between buf[start] and buf[stop-1].
+static int count_all(uint8_t *buf, size_t start, size_t stop, uint8_t value) {
+  size_t occ = 0;
+  for(size_t i = start ; i < stop ; i++) {
+    if(buf[i] == (i+value)%256) {
       occ ++;
     }
   }
   return occ;
 }
 
-// Return true iff the values from buf[start] to buf[stop-1] are all equal to value.
-int check_all(uint8_t *buf, int start, int stop, uint8_t value) {
-  int occ = count_all(buf, start, stop, value);
+// Return true iff the values from buf[start] to buf[stop-1] are all equal to (i+value)%256.
+static int check_all(uint8_t *buf, size_t start, size_t stop, uint8_t value) {
+  size_t occ = count_all(buf, start, stop, value);
   return occ == stop-start;
 }
 
-// Return true iff "enough" occurences of the given value are between buf[start] and buf[stop-1].
-int check_enough(uint8_t *buf, int start, int stop, uint8_t value) {
+// Return true iff "enough" elements are equal to (i+value)%256 between buf[start] and buf[stop-1].
+static int check_enough(uint8_t *buf, size_t start, size_t stop, uint8_t value) {
   int page_size = 0x1000;
-  int size = stop-start;
+  size_t size = stop-start;
   if(size <= 2*page_size) // we are not sure to have a whole page that is shared
     return 1;
-  int occ = count_all(buf, start, stop, value);
+  size_t occ = count_all(buf, start, stop, value);
   return occ >= size - 2*page_size;
 }
 
@@ -43,49 +47,49 @@ int main(int argc, char *argv[])
   MPI_Init(&argc, &argv);
   int rank;
   int size;
-  int mem_size = 0x10000000;
-  int shared_blocks[] = {
-    0,         0x1234567,
-    0x1300000, 0x1300010,
-    0x3456789, 0x3457890,
-    0x4444444, 0x5555555,
-    0x5555565, 0x5600000,
-    0x8000000, 0x10000000
+  size_t mem_size = 0x1000000;
+  size_t shared_blocks[] = {
+    0,         0x123456,
+    0x130000, 0x130001,
+    0x345678, 0x345789,
+    0x444444, 0x555555,
+    0x555556, 0x560000,
+    0x800000, 0x1000000
   };
-  int nb_blocks = (sizeof(shared_blocks)/sizeof(int))/2;
+  int nb_blocks = (sizeof(shared_blocks)/sizeof(size_t))/2;
   MPI_Comm_rank(MPI_COMM_WORLD, &rank);
   MPI_Comm_size(MPI_COMM_WORLD, &size);
   //Let's Allocate a shared memory buffer
   uint8_t *buf;
   buf = SMPI_PARTIAL_SHARED_MALLOC(mem_size, shared_blocks, nb_blocks);
-  memset(buf, 0, mem_size);
+  set(buf, 0, mem_size, 0);
   MPI_Barrier(MPI_COMM_WORLD);
 
   // Process 0 write in shared blocks
   if(rank == 0) {
     for(int i = 0; i < nb_blocks; i++) {
-      int start = shared_blocks[2*i];
-      int stop = shared_blocks[2*i+1];
-      memset(buf+start, 42, stop-start);
+      size_t start = shared_blocks[2*i];
+      size_t stop = shared_blocks[2*i+1];
+      set(buf, start, stop, 42);
     }
   }
   MPI_Barrier(MPI_COMM_WORLD);
   // All processes check that their shared blocks have been written (at least partially)
   for(int i = 0; i < nb_blocks; i++) {
-    int start = shared_blocks[2*i];
-    int stop = shared_blocks[2*i+1];
+    size_t start = shared_blocks[2*i];
+    size_t stop = shared_blocks[2*i+1];
     int is_shared = check_enough(buf, start, stop, 42);
-    printf("[%d] The result of the shared check for block (0x%x, 0x%x) is: %d\n", rank, start, stop, is_shared);
+    printf("[%d] The result of the shared check for block (0x%zx, 0x%zx) is: %d\n", rank, start, stop, is_shared);
   }
 
 
   // Check the private blocks
   MPI_Barrier(MPI_COMM_WORLD);
   for(int i = 0; i < nb_blocks-1; i++) {
-    int start = shared_blocks[2*i+1];
-    int stop = shared_blocks[2*i+2];
+    size_t start = shared_blocks[2*i+1];
+    size_t stop = shared_blocks[2*i+2];
     int is_private = check_all(buf, start, stop, 0);
-    printf("[%d] The result of the private check for block (0x%x, 0x%x) is: %d\n", rank, start, stop, is_private);
+    printf("[%d] The result of the private check for block (0x%zx, 0x%zx) is: %d\n", rank, start, stop, is_private);
   }
 
   SMPI_SHARED_FREE(buf);