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circle: cosmetics
[simgrid.git]
/
examples
/
smpi
/
mc
/
mutual_exclusion.c
diff --git
a/examples/smpi/mc/mutual_exclusion.c
b/examples/smpi/mc/mutual_exclusion.c
index 8c7ab75f585533aae2987ea7a5facd4f0e31bb6d..c63b9fd4b601c68e61f1012cbb7668fcd17a2744 100644
(file)
--- a/
examples/smpi/mc/mutual_exclusion.c
+++ b/
examples/smpi/mc/mutual_exclusion.c
@@
-13,13
+13,12
@@
#define RELEASE_TAG 2
int main(int argc, char **argv){
#define RELEASE_TAG 2
int main(int argc, char **argv){
-
int err, size, rank;
int recv_buff;
MPI_Status status;
int CS_used = 0;
xbt_dynar_t requests = xbt_dynar_new(sizeof(int), NULL);
int err, size, rank;
int recv_buff;
MPI_Status status;
int CS_used = 0;
xbt_dynar_t requests = xbt_dynar_new(sizeof(int), NULL);
-
+
/* Initialize MPI */
err = MPI_Init(&argc, &argv);
if(err != MPI_SUCCESS){
/* Initialize MPI */
err = MPI_Init(&argc, &argv);
if(err != MPI_SUCCESS){
@@
-30,9
+29,9
@@
int main(int argc, char **argv){
MC_ignore(&(status.count), sizeof(status.count));
/* Get number of processes */
MC_ignore(&(status.count), sizeof(status.count));
/* Get number of processes */
-
err =
MPI_Comm_size(MPI_COMM_WORLD, &size);
+ MPI_Comm_size(MPI_COMM_WORLD, &size);
/* Get id of this process */
/* Get id of this process */
-
err =
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
+ MPI_Comm_rank(MPI_COMM_WORLD, &rank);
if(rank == 0){ /* Coordinator */
while(1){
if(rank == 0){ /* Coordinator */
while(1){
@@
-48,8
+47,7
@@
int main(int argc, char **argv){
}
}else{
if(!xbt_dynar_is_empty(requests)){
}
}else{
if(!xbt_dynar_is_empty(requests)){
- printf("CS release. Grant to queued requests (queue size: %lu)",
- xbt_dynar_length(requests));
+ printf("CS release. Grant to queued requests (queue size: %lu)", xbt_dynar_length(requests));
xbt_dynar_shift(requests, &recv_buff);
MPI_Send(&rank, 1, MPI_INT, recv_buff, GRANT_TAG, MPI_COMM_WORLD);
CS_used = 1;
xbt_dynar_shift(requests, &recv_buff);
MPI_Send(&rank, 1, MPI_INT, recv_buff, GRANT_TAG, MPI_COMM_WORLD);
CS_used = 1;
@@
-63,12
+61,11
@@
int main(int argc, char **argv){
while(1){
printf("%d asks the request.\n", rank);
MPI_Send(&rank, 1, MPI_INT, 0, REQUEST_TAG, MPI_COMM_WORLD);
while(1){
printf("%d asks the request.\n", rank);
MPI_Send(&rank, 1, MPI_INT, 0, REQUEST_TAG, MPI_COMM_WORLD);
-
+
MPI_Recv(&recv_buff, 1, MPI_INT, 0, MPI_ANY_TAG, MPI_COMM_WORLD, &status);
MPI_Recv(&recv_buff, 1, MPI_INT, 0, MPI_ANY_TAG, MPI_COMM_WORLD, &status);
-
+
printf("%d got the answer. Release it.\n", rank);
MPI_Send(&rank, 1, MPI_INT, 0, RELEASE_TAG, MPI_COMM_WORLD);
printf("%d got the answer. Release it.\n", rank);
MPI_Send(&rank, 1, MPI_INT, 0, RELEASE_TAG, MPI_COMM_WORLD);
-
}
}
}
}