Improve parametrization of the pmm example.

[simgrid.git] / examples / msg / pmm / msg_pmm.c

diff --git a/examples/msg/pmm/msg_pmm.c b/examples/msg/pmm/msg_pmm.c
index 26a0b9c..1ae9c66 100644 (file)
--- a/examples/msg/pmm/msg_pmm.c
+++ b/examples/msg/pmm/msg_pmm.c
@@ -13,14 +13,14 @@
 XBT_LOG_NEW_DEFAULT_CATEGORY(msg_pmm,
                              "Messages specific for this msg example");
 
-/* This example should always be executed using a MATRIX_SIZE multiple of
- * GRID_SIZE and with GRID_SIZE^2 nodes. */
-#define MATRIX_SIZE 900
-#define GRID_SIZE 3
+/* This example should always be executed using a deployment of
+ * GRID_SIZE * GRID_SIZE nodes. */
+#define GRID_SIZE 3            /* Modify to adjust the grid's size */
+#define NODE_MATRIX_SIZE 300   /* Ammount of work done by each node*/
 
-#define MAILBOX_NAME_SIZE 10
 #define GRID_NUM_NODES GRID_SIZE * GRID_SIZE
-#define NODE_MATRIX_SIZE MATRIX_SIZE / GRID_SIZE
+#define MATRIX_SIZE NODE_MATRIX_SIZE * GRID_SIZE
+#define MAILBOX_NAME_SIZE 10
 #define NEIGHBOURS_COUNT GRID_SIZE - 1
 
 /*
@@ -58,10 +58,10 @@ int node(int argc, char **argv)
   int k, myid;
   char my_mbox[MAILBOX_NAME_SIZE];
   node_job_t myjob, jobs[GRID_NUM_NODES];
-  xbt_matrix_t A, B, C, sA, sB, sC;
+  xbt_matrix_t A, B, C = NULL, sA, sB, sC;
   result_t result;
 
-  xbt_assert0(argc != 1, "Wrong number of arguments for this node");
+  xbt_assert(argc != 1, "Wrong number of arguments for this node");
 
   /* Initialize the node's data-structures */
   myid = atoi(argv[1]);