tests/insert_task_owner: new testcase

mpi/tests/insert_task_owner.c

@@ -0,0 +1,72 @@
+/* StarPU --- Runtime system for heterogeneous multicore architectures.
+ *
+ * Copyright (C) 2011  Centre National de la Recherche Scientifique
+ *
+ * StarPU is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * StarPU is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * See the GNU Lesser General Public License in COPYING.LGPL for more details.
+ */
+
+#include <starpu_mpi.h>
+#include <math.h>
+
+void func_cpu(void *descr[], __attribute__ ((unused)) void *_args)
+{
+	unsigned *x = (unsigned *)STARPU_VARIABLE_GET_PTR(descr[0]);
+	unsigned *y = (unsigned *)STARPU_VARIABLE_GET_PTR(descr[1]);
+
+        fprintf(stdout, "VALUES: %d %d\n", *x, *y);
+        *x = (*x + *y) / 2;
+}
+
+starpu_codelet mycodelet = {
+	.where = STARPU_CPU,
+	.cpu_func = func_cpu,
+        .nbuffers = 2
+};
+
+int main(int argc, char **argv)
+{
+        int rank, size;
+        unsigned x0, x1;
+        starpu_data_handle data_handlesx0;
+        starpu_data_handle data_handlesx1;
+
+	starpu_init(NULL);
+	starpu_mpi_initialize_extended(1, &rank, &size);
+
+        if (rank == 0) {
+                starpu_variable_data_register(&data_handlesx0, 0, (uintptr_t)&x0, sizeof(x0));
+                starpu_data_set_rank(data_handlesx0, rank);
+                starpu_variable_data_register(&data_handlesx1, -1, (uintptr_t)NULL, sizeof(unsigned));
+                starpu_data_set_rank(data_handlesx1, 1);
+        }
+        else if (rank == 1) {
+                starpu_variable_data_register(&data_handlesx1, 1, (uintptr_t)&x1, sizeof(x1));
+                starpu_data_set_rank(data_handlesx1, rank);
+                starpu_variable_data_register(&data_handlesx0, -1, (uintptr_t)NULL, sizeof(unsigned));
+                starpu_data_set_rank(data_handlesx0, 0);
+        }
+
+        int err = starpu_mpi_insert_task(MPI_COMM_WORLD, &mycodelet, STARPU_RW, data_handlesx0, STARPU_RW, data_handlesx1);
+        if (err == -EINVAL) {
+                fprintf(stderr, "starpu_mpi_insert_task failed as expected\n");
+        }
+        else {
+                return 1;
+        }
+
+        starpu_task_wait_for_all();
+	starpu_mpi_shutdown();
+	starpu_shutdown();
+
+	return 0;
+}
+