merge - added lost file

mpi/tests/insert_task_owner_data.c

@@ -0,0 +1,92 @@
+/* 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 <starpu_mpi_datatype.h>
+#include <math.h>
+
+void func_cpu(void *descr[], __attribute__ ((unused)) void *_args)
+{
+	int *x0 = (int *)STARPU_VARIABLE_GET_PTR(descr[0]);
+	int *x1 = (int *)STARPU_VARIABLE_GET_PTR(descr[1]);
+
+	*x0 += 1;
+	*x1 *= *x1;
+}
+
+starpu_codelet mycodelet = {
+	.where = STARPU_CPU,
+	.cpu_func = func_cpu,
+        .nbuffers = 2
+};
+
+int main(int argc, char **argv)
+{
+        int rank, size, err;
+        int x[2];
+        int i;
+        starpu_data_handle data_handles[2];
+	int values[2];
+
+	starpu_init(NULL);
+	starpu_mpi_initialize_extended(&rank, &size);
+
+        if (rank > 1) {
+                starpu_mpi_shutdown();
+                starpu_shutdown();
+                return 0;
+        }
+
+        if (rank == 0) {
+		x[0] = 11;
+		starpu_variable_data_register(&data_handles[0], 0, (uintptr_t)&x[0], sizeof(x[0]));
+		starpu_data_set_rank(data_handles[0], 0);
+		starpu_data_set_tag(data_handles[0], 0);
+		starpu_variable_data_register(&data_handles[1], -1, (uintptr_t)NULL, sizeof(x[1]));
+		starpu_data_set_rank(data_handles[1], 1);
+		starpu_data_set_tag(data_handles[1],10);
+        }
+        else if (rank == 1) {
+		x[1] = 12;
+		starpu_variable_data_register(&data_handles[0], -1, (uintptr_t)NULL, sizeof(x[0]));
+		starpu_data_set_rank(data_handles[0], 0);
+		starpu_data_set_tag(data_handles[0], 0);
+		starpu_variable_data_register(&data_handles[1], 0, (uintptr_t)&x[1], sizeof(x[1]));
+		starpu_data_set_rank(data_handles[1], 1);
+		starpu_data_set_tag(data_handles[1], 1);
+        }
+
+        err = starpu_mpi_insert_task(MPI_COMM_WORLD, &mycodelet,
+                                     STARPU_RW, data_handles[0], STARPU_RW, data_handles[1],
+                                     STARPU_EXECUTE_ON_DATA, data_handles[1],
+				     0);
+        assert(err == 0);
+        starpu_task_wait_for_all();
+
+        for(i=0 ; i<2 ; i++) {
+                starpu_mpi_get_data_on_node(MPI_COMM_WORLD, data_handles[i], 0);
+                starpu_data_acquire(data_handles[i], STARPU_R);
+                values[i] = *((int *)starpu_mpi_handle_to_ptr(data_handles[i]));
+        }
+	assert(values[0] == 12 && values[1] == 144);
+        fprintf(stderr, "[%d][local ptr] VALUES: %d %d\n", rank, values[0], values[1]);
+
+	starpu_mpi_shutdown();
+	starpu_shutdown();
+
+	return 0;
+}
+