Changed wall clock time calculation

Makefile

@@ -40,14 +40,14 @@ mpi_line_async: config utils main_mpi
 		${SRC}/impl/mpi_line_async.c \
 	-o ${BIN}/jacobi_mpi_line_async
 
-main: ${SRC}/main.c
+main: ${SRC}/main/main.c
 	${CC_MPI} -c ${CFLAGS} \
-		${SRC}/main.c \
+		${SRC}/main/main.c \
 	-o ${BUILD}/main.o
 
-main_mpi: ${SRC}/main_mpi.c
+main_mpi: ${SRC}/main/main_mpi.c
 	${CC_MPI} -c ${CFLAGS} \
-		${SRC}/main_mpi.c \
+		${SRC}/main/main_mpi.c \
 	-o ${BUILD}/main_mpi.o
 
 config: ${SRC}/config.c

src/impl/omp.c

@@ -36,11 +36,10 @@ double *compute_jacobi(int n, double init_value, double threshold, borders b, in
     }
   }
   /* Iterative refinement of x until values converge */
-  omp_set_num_threads(2);
   *iterations = 0;
   do {
     max_diff = 0;
-    #pragma omp parallel for schedule(static, 20) \
+    #pragma omp parallel for schedule(static) \
       reduction (max:max_diff) \
       default(none) private(new_value, j) firstprivate(n, nb) shared(x, new_x)
     for (i = 1; i <= n; i++) {

src/main/main.c

@@ -1,9 +1,9 @@
 #include <stdio.h>
 #include <string.h>
 #include <math.h>
-#include <time.h>
+#include <sys/time.h>
-#include "config.h"
+#include "../config.h"
-#include "utils.h"
+#include "../utils.h"
 
 double *compute_jacobi(int n, double init_value, double threshold, borders b, int *iterations);
 
@@ -14,8 +14,9 @@ int main(int argc, char* argv[]) {
   int config_loaded;
   configuration config;
   double *x;
-  clock_t starttime, endtime;
   int iterations;
+  struct timeval start, end;
+  long secs_used, micros_used;
 
   config_loaded = load_config(&config);
   if (config_loaded != 0) {
@@ -29,11 +30,13 @@ int main(int argc, char* argv[]) {
   b.east = config.east;
   b.west = config.west;
 
-  starttime = clock();
+  gettimeofday(&start, NULL);
   x = compute_jacobi(n, init_value, threshold, b, &iterations);
-  endtime = clock();
+  gettimeofday(&end, NULL);
 
-  printf("clock time: %fs\n", (double)(endtime - starttime) / CLOCKS_PER_SEC);
+  secs_used = (end.tv_sec - start.tv_sec);
+  micros_used = ((secs_used * 1000000) + end.tv_usec) - (start.tv_usec);
+  printf("Wall clock time: %fs\n", (double) micros_used / 1000000);
   printf("Iterations: %d\n", iterations);
   if (n < 10) {
     print_sa_matrix(x, n + 2, n + 2);

src/main/main_mpi.c

@@ -2,8 +2,8 @@
 #include <string.h>
 #include <math.h>
 #include <mpi.h>
-#include "config.h"
+#include "../config.h"
-#include "utils.h"
+#include "../utils.h"
 
 double *compute_jacobi(int rank, int numprocs, int n, double init_value, double threshold, borders b, int *iterations);