test for starpu_task_insert parameter STARPU_TASK_DEPS_ARRAY

tests/Makefile.am

@@ -154,6 +154,7 @@ myPROGRAMS +=					\
 	main/codelet_null_callback		\
 	datawizard/allocate			\
 	datawizard/acquire_cb			\
+	datawizard/deps				\
 	datawizard/user_interaction_implicit	\
 	datawizard/interfaces/copy_interfaces	\
 	datawizard/locality			\

tests/datawizard/deps.c

@@ -0,0 +1,111 @@
+/* StarPU --- Runtime system for heterogeneous multicore architectures.
+ *
+ * Copyright (C) 2017  CNRS
+ *
+ * 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.h>
+#include "../helper.h"
+
+#define N 10
+#define LOOPS 4
+
+void null_cpu_func(void *buffers[], void *arg)
+{
+	(void)arg;
+	(void)buffers;
+}
+
+void prod_cpu_func(void *buffers[], void *arg)
+{
+	int *data = (int *)STARPU_VECTOR_GET_PTR(buffers[0]);
+	int n = STARPU_VECTOR_GET_NX(buffers[0]);
+	int i;
+	int factor;
+
+	starpu_codelet_unpack_args(arg, &factor);
+
+	FPRINTF(stderr, "Multiplying by %d\n", factor);
+	for(i=0 ; i<n ; i++) data[i] *= factor;
+}
+
+static struct starpu_codelet cl_null =
+{
+	.cpu_funcs = {null_cpu_func},
+	.cpu_funcs_name = {"null_cpu_func"},
+	.name = "null",
+};
+
+static struct starpu_codelet cl_prod =
+{
+	.cpu_funcs = {prod_cpu_func},
+	.cpu_funcs_name = {"prod_cpu_func"},
+	.nbuffers = 1,
+	.modes = {STARPU_RW},
+	.name = "prod",
+};
+
+int main(int argc, char **argv)
+{
+	int i, j, ret;
+	int data[N];
+	int data2[N];
+	int factor[LOOPS];
+	starpu_data_handle_t data_handle;
+
+	ret = starpu_initialize(NULL, &argc, &argv);
+	if (ret == -ENODEV) return STARPU_TEST_SKIPPED;
+	STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
+
+	for(i=0 ; i<N ; i++) data[i] = 12;
+	for(i=0 ; i<N ; i++) data2[i] = 12;
+	starpu_vector_data_register(&data_handle, STARPU_MAIN_RAM, (uintptr_t) data, N, sizeof(int));
+
+	struct starpu_task *motherTask = starpu_task_build(&cl_null, STARPU_NAME, "motherTask", 0);
+
+	for (i = 0; i < LOOPS; i++)
+	{
+		factor[i] = i+1;
+		for(j=0 ; j<N ; j++) data2[j] *= factor[i];
+		ret = starpu_task_insert(&cl_prod,
+					 STARPU_RW, data_handle,
+					 STARPU_VALUE, &factor[i], sizeof(factor[i]),
+					 STARPU_TASK_DEPS_ARRAY, 1, &motherTask,
+					 0);
+		if (ret == -ENODEV) goto enodev;
+		STARPU_CHECK_RETURN_VALUE(ret, "starpu_task_submit");
+	}
+
+	ret = starpu_task_submit(motherTask);
+	if (ret == -ENODEV) goto enodev;
+	STARPU_CHECK_RETURN_VALUE(ret, "starpu_task_submit");
+
+	starpu_task_wait_for_all();
+	starpu_data_unregister(data_handle);
+
+	for(i=0 ; i<N ; i++)
+	{
+		FPRINTF(stderr, "data[%d] = %d ==? %d \n", i, data[i], data2[i]);
+		STARPU_ASSERT_MSG(data[i] == data2[i], "Incorrect computation\n");
+	}
+
+	starpu_shutdown();
+	return EXIT_SUCCESS;
+
+enodev:
+	fprintf(stderr, "WARNING: No one can execute this task\n");
+	/* yes, we do not perform the computation but we did detect that no one
+ 	 * could perform the kernel, so this is not an error from StarPU */
+	starpu_shutdown();
+	return STARPU_TEST_SKIPPED;
+}