1 files changed, 113 insertions, 0 deletions
diff --git a/final/runtime/test/tasking/omp_taskloop_grainsize.c b/final/runtime/test/tasking/omp_taskloop_grainsize.c
new file mode 100644
index 0000000..0833073
--- /dev/null
+++ b/final/runtime/test/tasking/omp_taskloop_grainsize.c
@@ -0,0 +1,113 @@
+// RUN: %libomp-compile-and-run
+// RUN: %libomp-compile && env KMP_TASKLOOP_MIN_TASKS=1 %libomp-run
+
+// These compilers don't support the taskloop construct
+// UNSUPPORTED: gcc-4, gcc-5, icc-16
+// GCC 6 has support for taskloops, but at least 6.3.0 is crashing on this test
+// UNSUPPORTED: gcc-6
+
+/*
+ * Test for taskloop
+ * Method: caculate how many times the iteration space is dispatched
+ *     and judge if each dispatch has the requested grainsize
+ * It is possible for two adjacent chunks are executed by the same thread
+ */
+#include <stdio.h>
+#include <omp.h>
+#include <stdlib.h>
+#include "omp_testsuite.h"
+
+#define CFDMAX_SIZE 1120
+
+int test_omp_taskloop_grainsize()
+{
+  int result = 0;
+  int i, grainsize, count, tmp_count, num_off;
+  int *tmp, *tids, *tidsArray;
+
+  tidsArray = (int *)malloc(sizeof(int) * CFDMAX_SIZE);
+  tids = tidsArray;
+
+  for (grainsize = 1; grainsize < 48; ++grainsize) {
+    fprintf(stderr, "Grainsize %d\n", grainsize);
+    count = tmp_count = num_off = 0;
+
+    for (i = 0; i < CFDMAX_SIZE; ++i) {
+      tids[i] = -1;
+    }
+
+    #pragma omp parallel shared(tids)
+    {
+      #pragma omp master
+      #pragma omp taskloop grainsize(grainsize)
+      for (i = 0; i < CFDMAX_SIZE; i++) {
+        tids[i] = omp_get_thread_num();
+      }
+    }
+
+    for (i = 0; i < CFDMAX_SIZE; ++i) {
+      if (tids[i] == -1) {
+        fprintf(stderr, "  Iteration %d not touched!\n", i);
+        result++;
+      }
+    }
+
+    for (i = 0; i < CFDMAX_SIZE - 1; ++i) {
+      if (tids[i] != tids[i + 1]) {
+        count++;
+      }
+    }
+
+    tmp = (int *)malloc(sizeof(int) * (count + 1));
+    tmp[0] = 1;
+
+    for (i = 0; i < CFDMAX_SIZE - 1; ++i) {
+      if (tmp_count > count) {
+        printf("--------------------\nTestinternal Error: List too "
+               "small!!!\n--------------------\n");
+        break;
+      }
+      if (tids[i] != tids[i + 1]) {
+        tmp_count++;
+        tmp[tmp_count] = 1;
+      } else {
+        tmp[tmp_count]++;
+      }
+    }
+
+    // is grainsize statement working?
+    int num_tasks = CFDMAX_SIZE / grainsize;
+    int multiple1 = CFDMAX_SIZE / num_tasks;
+    int multiple2 = CFDMAX_SIZE / num_tasks + 1;
+    for (i = 0; i < count; i++) {
+      // it is possible for 2 adjacent chunks assigned to a same thread
+      if (tmp[i] % multiple1 != 0 && tmp[i] % multiple2 != 0) {
+        num_off++;
+      }
+    }
+
+    if (num_off > 1) {
+      fprintf(stderr, "  The number of bad chunks is %d\n", num_off);
+      result++;
+    } else {
+      fprintf(stderr, "  Everything ok\n");
+    }
+
+    free(tmp);
+  }
+  free(tidsArray);
+  return (result==0);
+}
+
+int main()
+{
+  int i;
+  int num_failed=0;
+
+  for (i = 0; i < REPETITIONS; i++) {
+    if (!test_omp_taskloop_grainsize()) {
+      num_failed++;
+    }
+  }
+  return num_failed;
+}