X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/189f463aedf5f30f719709ec33a214063241d942..bdee40d2bc54baf9489148cbfbd6bd1fcd6469df:/examples/smpi/sendrecv.c

diff --git a/examples/smpi/sendrecv.c b/examples/smpi/sendrecv.c
index da30874b9a..ae9e297194 100644
--- a/examples/smpi/sendrecv.c
+++ b/examples/smpi/sendrecv.c
@@ -1,7 +1,14 @@
+/* Copyright (c) 2009, 2010. 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>
 
-int test(int myid, int numprocs) {
+static int test(int myid, int numprocs)
+{
 // The tags should match on the sender and receiver side.
 // The distinction between sendtag and recvtag is mainly
 // useful to make some other Recv or Send calls match the sendrecv. 
@@ -10,54 +17,54 @@ int test(int myid, int numprocs) {
 
 
 #define BUFLEN 10
-    int left, right;
-    int buffer[BUFLEN], buffer2[BUFLEN];
-    int i;
-    MPI_Request request;
-    MPI_Status status;
-
-    for (i=0;i<BUFLEN;i++) {
-		buffer[i]=myid;
-    }
+  int left, right;
+  int buffer[BUFLEN], buffer2[BUFLEN];
+  int i;
+  MPI_Status status;
+
+  for (i = 0; i < BUFLEN; i++) {
+    buffer[i] = myid;
+  }
 
-    right = (myid + 1) % numprocs;
-    left = myid - 1;
-    if (left < 0)
-        left = numprocs - 1;
-
-    /* performs a right-to-left shift of vectors */ 
-    MPI_Sendrecv(buffer, 10, MPI_INT, left, TAG_SND, buffer2, 10, MPI_INT, right, TAG_RCV, MPI_COMM_WORLD, &status);
- 
-    for (i=0;i<BUFLEN;i++) {
-		if (buffer2[i]!=((myid+1)%numprocs)) {
-			  fprintf(stderr,"[%d] error: should have values %d, has %d\n",myid,myid-1,buffer[i]);
-			  return(0);
-	      }
+  right = (myid + 1) % numprocs;
+  left = myid - 1;
+  if (left < 0)
+    left = numprocs - 1;
+
+  /* performs a right-to-left shift of vectors */
+  MPI_Sendrecv(buffer, 10, MPI_INT, left, TAG_SND, buffer2, 10, MPI_INT,
+               right, TAG_RCV, MPI_COMM_WORLD, &status);
+
+  for (i = 0; i < BUFLEN; i++) {
+    if (buffer2[i] != right) {
+      fprintf(stderr, "[%d] error: should have values %d, has %d\n", myid,
+              right, buffer2[i]);
+      return (0);
     }
-    return(1);
+  }
+  return (1);
 }
- 
+
 int main(int argc, char *argv[])
 {
 
-   int myid, numprocs;
+  int myid, numprocs;
 
-    MPI_Init(&argc,&argv);
-    MPI_Comm_size(MPI_COMM_WORLD, &numprocs);
-    MPI_Comm_rank(MPI_COMM_WORLD, &myid);
+  MPI_Init(&argc, &argv);
+  MPI_Comm_size(MPI_COMM_WORLD, &numprocs);
+  MPI_Comm_rank(MPI_COMM_WORLD, &myid);
 
 
-    if (0==myid) 
-		printf("\n    *** MPI_Sendrecv test ***\n\n");
+  if (0 == myid)
+    printf("\n    *** MPI_Sendrecv test ***\n\n");
 
-    if ( test(myid,numprocs)) {
-		fprintf(stderr,"[%d] ok.\n",myid);
-    }
-    else {
-		fprintf(stderr,"[%d] failed.\n",myid);
-    }
+  if (test(myid, numprocs)) {
+    fprintf(stderr, "[%d] ok.\n", myid);
+  } else {
+    fprintf(stderr, "[%d] failed.\n", myid);
+  }
 
 
-    MPI_Finalize();
-    return 0;
+  MPI_Finalize();
+  return 0;
 }