C++ (Cpp) starpu_data_get_local_ptr Exemples

Exemple #1

Fichier : mpi_earlyrecv2.c Projet : excess-project/starpu-ex-1.2.0rc5

void check_variable(starpu_data_handle_t handle, int i, int rank, int *error)
{
	int other_rank = rank%2 == 0 ? rank+1 : rank-1;

	int *rvalue = (int *)starpu_data_get_local_ptr(handle);
	if (*rvalue != i*other_rank)
	{
		FPRINTF_MPI(stderr, "Incorrect received value: %d != %d\n", *rvalue, i*other_rank);
		*error = 1;
	}
}

Exemple #2

Fichier : insert_task_owner_data.c Projet : joao-lima/starpu-1.2.0rc2

int main(int argc, char **argv)
{
	int rank, size, err;
	int x[2];
	int ret, i;
	starpu_data_handle_t data_handles[2];
	int values[2];

	ret = starpu_init(NULL);
	STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
	ret = starpu_mpi_init(&argc, &argv, 1);
	STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init");
	MPI_Comm_rank(MPI_COMM_WORLD, &rank);
	MPI_Comm_size(MPI_COMM_WORLD, &size);

	if (rank == 0)
	{
		x[0] = 11;
		starpu_variable_data_register(&data_handles[0], STARPU_MAIN_RAM, (uintptr_t)&x[0], sizeof(x[0]));
		starpu_variable_data_register(&data_handles[1], -1, (uintptr_t)NULL, sizeof(x[1]));
	}
	else if (rank == 1)
	{
		x[1] = 12;
		starpu_variable_data_register(&data_handles[0], -1, (uintptr_t)NULL, sizeof(x[0]));
		starpu_variable_data_register(&data_handles[1], STARPU_MAIN_RAM, (uintptr_t)&x[1], sizeof(x[1]));
	}
	else
	{
		starpu_variable_data_register(&data_handles[0], -1, (uintptr_t)NULL, sizeof(x[0]));
		starpu_variable_data_register(&data_handles[1], -1, (uintptr_t)NULL, sizeof(x[1]));
	}

	starpu_mpi_data_register(data_handles[0], 0, 0);
	starpu_mpi_data_register(data_handles[1], 1, 1);

	err = starpu_mpi_task_insert(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_detached(MPI_COMM_WORLD, data_handles[i], 0, NULL, NULL);
		if (rank == 0)
		{
			starpu_data_acquire(data_handles[i], STARPU_R);
			values[i] = *((int *)starpu_data_get_local_ptr(data_handles[i]));
			starpu_data_release(data_handles[i]);		}
	}
	ret = 0;
	if (rank == 0)
	{
		FPRINTF(stderr, "[%d][local ptr] VALUES: %d %d\n", rank, values[0], values[1]);
		if (values[0] != 12 || values[1] != 144)
		{
			ret = EXIT_FAILURE;
		}
	}

	starpu_data_unregister(data_handles[0]);
	starpu_data_unregister(data_handles[1]);

	starpu_mpi_shutdown();
	starpu_shutdown();

	return ret;
}