int main(int argc, char **argv)
{
int ret, rank, size;
starpu_data_handle_t handle;
int var;
MPI_Init(&argc, &argv);
starpu_mpi_comm_rank(MPI_COMM_WORLD, &rank);
starpu_mpi_comm_size(MPI_COMM_WORLD, &size);
ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
ret = starpu_mpi_init(NULL, NULL, 0);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init");
if (size<3)
{
FPRINTF(stderr, "We need more than 2 processes.\n");
starpu_mpi_shutdown();
starpu_shutdown();
MPI_Finalize();
return STARPU_TEST_SKIPPED;
}
if (rank == 0)
{
int n;
for(n=1 ; n<size ; n++)
{
MPI_Status status;
FPRINTF_MPI(stderr, "receiving from node %d\n", n);
starpu_variable_data_register(&handle, STARPU_MAIN_RAM, (uintptr_t)&var, sizeof(var));
starpu_mpi_recv(handle, n, 42, MPI_COMM_WORLD, &status);
starpu_data_acquire(handle, STARPU_R);
STARPU_ASSERT_MSG(var == n, "Received incorrect value <%d> from node <%d>\n", var, n);
FPRINTF_MPI(stderr, "received <%d> from node %d\n", var, n);
starpu_data_release(handle);
starpu_data_unregister(handle);
}
}
else
{
FPRINTF_MPI(stderr, "sending to node %d\n", 0);
var = rank;
starpu_variable_data_register(&handle, STARPU_MAIN_RAM, (uintptr_t)&var, sizeof(var));
starpu_mpi_send(handle, 0, 42, MPI_COMM_WORLD);
starpu_data_unregister(handle);
}
starpu_mpi_shutdown();
starpu_shutdown();
MPI_Finalize();
return 0;
}
int main(int argc, char **argv)
{
int ret, rank, size;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
if (size%2 != 0)
{
if (rank == 0)
FPRINTF(stderr, "We need a even number of processes.\n");
MPI_Finalize();
return STARPU_TEST_SKIPPED;
}
ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
ret = starpu_mpi_init(NULL, NULL, 0);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init");
tab = malloc(SIZE*sizeof(float));
starpu_vector_data_register(&tab_handle, STARPU_MAIN_RAM, (uintptr_t)tab, SIZE, sizeof(float));
int nloops = NITER;
int loop;
int other_rank = rank%2 == 0 ? rank+1 : rank-1;
for (loop = 0; loop < nloops; loop++)
{
starpu_tag_t tag = (starpu_tag_t)loop;
if ((loop % 2) == (rank%2))
{
starpu_mpi_isend_detached_unlock_tag(tab_handle, other_rank, loop, MPI_COMM_WORLD, tag);
}
else
{
starpu_mpi_irecv_detached_unlock_tag(tab_handle, other_rank, loop, MPI_COMM_WORLD, tag);
}
starpu_tag_wait(tag);
}
starpu_data_unregister(tab_handle);
free(tab);
starpu_mpi_shutdown();
starpu_shutdown();
MPI_Finalize();
return 0;
}
/*main program*/
int main(int argc, char * argv[])
{
/* Init */
int ret;
int mpi_rank, mpi_size;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &mpi_rank);
MPI_Comm_size(MPI_COMM_WORLD, &mpi_size);
ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
ret = starpu_mpi_init(NULL, NULL, 0);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init");
/*element initialization : domains are connected as a ring for this test*/
int num_elements=NUM_EL;
struct element * el_left=malloc(num_elements*sizeof(el_left[0]));
struct element * el_right=malloc(num_elements*sizeof(el_right[0]));
int i;
for(i=0; i<num_elements; i++)
{
init_element(el_left+i,i+1,((mpi_rank-1)+mpi_size)%mpi_size);
init_element(el_right+i,i+1,(mpi_rank+1)%mpi_size);
}
/* Communication loop */
for (i=0; i<NUM_LOOPS; i++) //number of "computations loops"
{
int e;
for (e=0; e<num_elements; e++) //Do something for each elements
{
insert_work_for_one_element(el_right+e);
insert_work_for_one_element(el_left+e);
}
}
/* End */
starpu_task_wait_for_all();
for(i=0; i<num_elements; i++)
{
free_element(el_left+i);
free_element(el_right+i);
}
starpu_mpi_shutdown();
starpu_shutdown();
MPI_Finalize();
FPRINTF(stderr, "No assert until end\n");
return 0;
}
int main(int argc, char **argv)
{
/* create a simple definite positive symetric matrix example
*
* Hilbert matrix : h(i,j) = 1/(i+j+1)
* */
float ***bmat;
int rank, nodes, ret;
double timing, flops;
int correctness;
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, &nodes);
starpu_cublas_init();
parse_args(argc, argv, nodes);
matrix_init(&bmat, rank, nodes, 1);
matrix_display(bmat, rank);
dw_cholesky(bmat, size/nblocks, rank, nodes, &timing, &flops);
starpu_mpi_shutdown();
matrix_display(bmat, rank);
dw_cholesky_check_computation(bmat, rank, nodes, &correctness, &flops);
matrix_free(&bmat, rank, nodes, 1);
starpu_cublas_shutdown();
starpu_shutdown();
assert(correctness);
if (rank == 0)
{
FPRINTF(stdout, "Computation time (in ms): %2.2f\n", timing/1000);
FPRINTF(stdout, "Synthetic GFlops : %2.2f\n", (flops/timing/1000.0f));
}
return 0;
}
int main(int argc, char **argv)
{
int ret=0, global_ret=0;
int rank, size;
MPI_Init(&argc, &argv);
starpu_mpi_comm_rank(MPI_COMM_WORLD, &rank);
starpu_mpi_comm_size(MPI_COMM_WORLD, &size);
ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
ret = starpu_mpi_init(NULL, NULL, 0);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init");
if (size%2 != 0)
{
FPRINTF(stderr, "We need a even number of processes.\n");
starpu_mpi_shutdown();
starpu_shutdown();
MPI_Finalize();
return STARPU_TEST_SKIPPED;
}
ret = exchange_variable(rank, 0);
if (ret != 0) global_ret = ret;
ret = exchange_variable(rank, 1);
if (ret != 0) global_ret = ret;
ret = exchange_void(rank, 0);
if (ret != 0) global_ret = ret;
ret = exchange_void(rank, 1);
if (ret != 0) global_ret = ret;
ret = exchange_complex(rank, 0);
if (ret != 0) global_ret = ret;
ret = exchange_complex(rank, 1);
if (ret != 0) global_ret = ret;
starpu_mpi_shutdown();
starpu_shutdown();
MPI_Finalize();
return global_ret;
}
int main(int argc, char **argv)
{
int ret, rank, size;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
if (size<3)
{
FPRINTF(stderr, "We need more than 2 processes.\n");
MPI_Finalize();
return STARPU_TEST_SKIPPED;
}
ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
ret = starpu_mpi_init(NULL, NULL, 0);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init");
if (rank == 0)
{
int n;
for(n=1 ; n<size ; n++)
{
int i, var[2];
MPI_Status status[3];
starpu_data_handle_t handle[2];
FPRINTF_MPI(stderr, "receiving from node %d\n", n);
for(i=0 ; i<2 ; i++)
starpu_variable_data_register(&handle[i], STARPU_MAIN_RAM, (uintptr_t)&var[i], sizeof(var[i]));
starpu_mpi_recv(handle[0], n, 42, MPI_COMM_WORLD, &status[0]);
starpu_data_acquire(handle[0], STARPU_R);
STARPU_ASSERT_MSG(var[0] == n, "Received incorrect value <%d> from node <%d>\n", var[0], n);
FPRINTF_MPI(stderr, "received <%d> from node %d\n", var[0], n);
starpu_data_release(handle[0]);
starpu_mpi_recv(handle[0], n, 42, MPI_COMM_WORLD, &status[1]);
starpu_mpi_recv(handle[1], n, 44, MPI_COMM_WORLD, &status[2]);
for(i=0 ; i<2 ; i++)
starpu_data_acquire(handle[i], STARPU_R);
STARPU_ASSERT_MSG(var[0] == n*2, "Received incorrect value <%d> from node <%d>\n", var[0], n);
STARPU_ASSERT_MSG(var[1] == n*4, "Received incorrect value <%d> from node <%d>\n", var[0], n);
FPRINTF_MPI(stderr, "received <%d> and <%d> from node %d\n", var[0], var[1], n);
for(i=0 ; i<2 ; i++)
starpu_data_release(handle[i]);
for(i=0 ; i<2 ; i++)
starpu_data_unregister(handle[i]);
}
}
else
{
int i, var[3];
starpu_data_handle_t handle[3];
FPRINTF_MPI(stderr, "sending to node %d\n", 0);
var[0] = rank;
var[1] = var[0] * 2;
var[2] = var[0] * 4;
for(i=0 ; i<3 ; i++)
starpu_variable_data_register(&handle[i], STARPU_MAIN_RAM, (uintptr_t)&var[i], sizeof(var[i]));
starpu_mpi_send(handle[0], 0, 42, MPI_COMM_WORLD);
starpu_mpi_send(handle[1], 0, 42, MPI_COMM_WORLD);
starpu_mpi_send(handle[2], 0, 44, MPI_COMM_WORLD);
for(i=0 ; i<3 ; i++)
starpu_data_unregister(handle[i]);
}
starpu_mpi_shutdown();
starpu_shutdown();
MPI_Finalize();
return 0;
}
int main(int argc, char **argv)
{
int size, n, x=789;
int rank, other_rank;
int ret;
starpu_data_handle_t data[2];
MPI_Init(&argc, &argv);
starpu_mpi_comm_rank(MPI_COMM_WORLD, &rank);
starpu_mpi_comm_size(MPI_COMM_WORLD, &size);
if (size % 2)
{
FPRINTF(stderr, "We need a even number of processes.\n");
MPI_Finalize();
return STARPU_TEST_SKIPPED;
}
other_rank = rank%2 == 0 ? rank+1 : rank-1;
FPRINTF_MPI(stderr, "rank %d exchanging with rank %d\n", rank, other_rank);
if (rank % 2)
{
MPI_Send(&rank, 1, MPI_INT, other_rank, 10, MPI_COMM_WORLD);
FPRINTF(stderr, "[%d] sending %d\n", rank, rank);
}
else
{
MPI_Recv(&x, 1, MPI_INT, other_rank, 10, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
FPRINTF(stderr, "[%d] received %d\n", rank, x);
}
ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
ret = starpu_mpi_init(NULL, NULL, 0);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init");
if (rank % 2)
{
starpu_variable_data_register(&data[0], STARPU_MAIN_RAM, (uintptr_t)&rank, sizeof(unsigned));
starpu_variable_data_register(&data[1], STARPU_MAIN_RAM, (uintptr_t)&rank, sizeof(unsigned));
starpu_mpi_data_register(data[1], 22, 0);
}
else
starpu_variable_data_register(&data[0], -1, (uintptr_t)NULL, sizeof(unsigned));
starpu_mpi_data_register(data[0], 12, 0);
if (rank % 2)
{
starpu_mpi_req req;
starpu_mpi_issend(data[1], &req, other_rank, 22, MPI_COMM_WORLD);
starpu_mpi_send(data[0], other_rank, 12, MPI_COMM_WORLD);
starpu_mpi_wait(&req, MPI_STATUS_IGNORE);
}
else
{
int *xx;
starpu_mpi_recv(data[0], other_rank, 12, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
xx = (int *)starpu_variable_get_local_ptr(data[0]);
FPRINTF_MPI(stderr, "received %d\n", *xx);
STARPU_ASSERT_MSG(x==*xx, "Received value %d is incorrect (should be %d)\n", *xx, x);
starpu_variable_data_register(&data[1], -1, (uintptr_t)NULL, sizeof(unsigned));
starpu_mpi_data_register(data[1], 22, 0);
starpu_mpi_recv(data[0], other_rank, 22, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
xx = (int *)starpu_variable_get_local_ptr(data[0]);
STARPU_ASSERT_MSG(x==*xx, "Received value %d is incorrect (should be %d)\n", *xx, x);
}
starpu_data_unregister(data[0]);
starpu_data_unregister(data[1]);
starpu_mpi_shutdown();
starpu_shutdown();
MPI_Finalize();
return 0;
}
int do_test(int rank, int sdetached, int rdetached)
{
int ret, i;
int val[2];
starpu_data_handle_t data[2];
ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
ret = starpu_mpi_init(NULL, NULL, 0);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init");
if (rank == 1)
{
val[0] = VAL0;
val[1] = VAL1;
}
else
{
val[0] = -1;
val[1] = -1;
}
starpu_variable_data_register(&data[0], STARPU_MAIN_RAM, (uintptr_t)&val[0], sizeof(val[0]));
starpu_variable_data_register(&data[1], STARPU_MAIN_RAM, (uintptr_t)&val[1], sizeof(val[1]));
starpu_mpi_data_register(data[0], 77, 1);
starpu_mpi_data_register(data[1], 88, 1);
if (rank == 1)
{
for(i=1 ; i>=0 ; i--)
{
if (sdetached)
starpu_mpi_isend_detached(data[i], 0, starpu_data_get_tag(data[i]), MPI_COMM_WORLD, NULL, NULL);
else
starpu_mpi_send(data[i], 0, starpu_data_get_tag(data[i]), MPI_COMM_WORLD);
}
}
else if (rank == 0)
{
int received = 0;
for(i=0 ; i<2 ; i++)
FPRINTF_MPI(stderr, "Value[%d] = %d\n", i, val[i]);
for(i=0 ; i<2 ; i++)
{
if (rdetached)
starpu_mpi_irecv_detached(data[i], 1, starpu_data_get_tag(data[i]), MPI_COMM_WORLD, callback, &received);
else
starpu_mpi_recv(data[i], 1, starpu_data_get_tag(data[i]), MPI_COMM_WORLD, MPI_STATUS_IGNORE);
}
if (rdetached)
{
STARPU_PTHREAD_MUTEX_LOCK(&mutex);
while (received != 2)
{
FPRINTF_MPI(stderr, "Received %d messages\n", received);
STARPU_PTHREAD_COND_WAIT(&cond, &mutex);
}
STARPU_PTHREAD_MUTEX_UNLOCK(&mutex);
}
for(i=0 ; i<2 ; i++)
starpu_data_acquire(data[i], STARPU_R);
for(i=0 ; i<2 ; i++)
FPRINTF_MPI(stderr, "Value[%d] = %d\n", i, val[i]);
for(i=0 ; i<2 ; i++)
starpu_data_release(data[i]);
}
FPRINTF_MPI(stderr, "Waiting ...\n");
starpu_task_wait_for_all();
starpu_data_unregister(data[0]);
starpu_data_unregister(data[1]);
if (rank == 0)
{
ret = (val[0] == VAL0 && val[1] == VAL1) ? 0 : 1;
}
starpu_mpi_shutdown();
starpu_shutdown();
return ret;
}
int main(int argc, char **argv)
{
int ret, rank, size;
ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
ret = starpu_mpi_init(NULL, NULL, 1);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init");
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
if (size < 2)
{
if (rank == 0)
FPRINTF(stderr, "We need at least 2 processes.\n");
MPI_Finalize();
return STARPU_TEST_SKIPPED;
}
starpu_vector_data_register(&token_handle, STARPU_MAIN_RAM, (uintptr_t)&token, 1, sizeof(token));
int nloops = NITER;
int loop;
int last_loop = nloops - 1;
int last_rank = size - 1;
for (loop = 0; loop < nloops; loop++)
{
int tag = loop*size + rank;
if (loop == 0 && rank == 0)
{
token = 0;
FPRINTF(stdout, "Start with token value %u\n", token);
}
else
{
starpu_mpi_irecv_detached(token_handle, (rank+size-1)%size, tag, MPI_COMM_WORLD, NULL, NULL);
}
increment_token();
if (loop == last_loop && rank == last_rank)
{
starpu_data_acquire(token_handle, STARPU_R);
FPRINTF(stdout, "Finished : token value %u\n", token);
starpu_data_release(token_handle);
}
else
{
starpu_mpi_isend_detached(token_handle, (rank+1)%size, tag+1, MPI_COMM_WORLD, NULL, NULL);
}
}
starpu_task_wait_for_all();
starpu_data_unregister(token_handle);
starpu_mpi_shutdown();
starpu_shutdown();
if (rank == last_rank)
{
FPRINTF(stderr, "[%d] token = %u == %u * %d ?\n", rank, token, nloops, size);
STARPU_ASSERT(token == nloops*size);
}
return 0;
}
int main(int argc, char **argv)
{
int my_rank, size, x, y, loop;
float mean=0;
float matrix[X][Y];
starpu_data_handle_t data_handles[X][Y];
int ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
starpu_mpi_init(&argc, &argv, 1);
MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
parse_args(argc, argv);
/* Initial data values */
starpu_srand48((long int)time(NULL));
for(x = 0; x < X; x++)
{
for (y = 0; y < Y; y++)
{
matrix[x][y] = (float)starpu_drand48();
mean += matrix[x][y];
}
}
mean /= (X*Y);
if (display)
{
FPRINTF_MPI(stdout, "mean=%2.2f\n", mean);
for(x = 0; x < X; x++)
{
fprintf(stdout, "[%d] ", my_rank);
for (y = 0; y < Y; y++)
{
fprintf(stdout, "%2.2f ", matrix[x][y]);
}
fprintf(stdout, "\n");
}
}
/* Initial distribution */
for(x = 0; x < X; x++)
{
for (y = 0; y < Y; y++)
{
int mpi_rank = my_distrib(x, y, size);
if (mpi_rank == my_rank)
{
//FPRINTF(stderr, "[%d] Owning data[%d][%d]\n", my_rank, x, y);
starpu_variable_data_register(&data_handles[x][y], 0, (uintptr_t)&(matrix[x][y]), sizeof(float));
}
else if (my_rank == my_distrib(x+1, y, size) || my_rank == my_distrib(x-1, y, size)
|| my_rank == my_distrib(x, y+1, size) || my_rank == my_distrib(x, y-1, size))
{
/* I don't own that index, but will need it for my computations */
//FPRINTF(stderr, "[%d] Neighbour of data[%d][%d]\n", my_rank, x, y);
starpu_variable_data_register(&data_handles[x][y], -1, (uintptr_t)NULL, sizeof(float));
}
else
{
/* I know it's useless to allocate anything for this */
data_handles[x][y] = NULL;
}
if (data_handles[x][y])
{
starpu_mpi_data_register(data_handles[x][y], (y*X)+x, mpi_rank);
}
}
}
/* First computation with initial distribution */
for(loop=0 ; loop<niter; loop++)
{
for (x = 1; x < X-1; x++)
{
for (y = 1; y < Y-1; y++)
{
starpu_mpi_task_insert(MPI_COMM_WORLD, &stencil5_cl, STARPU_RW, data_handles[x][y],
STARPU_R, data_handles[x-1][y], STARPU_R, data_handles[x+1][y],
STARPU_R, data_handles[x][y-1], STARPU_R, data_handles[x][y+1],
0);
}
}
}
FPRINTF(stderr, "Waiting ...\n");
starpu_task_wait_for_all();
/* Now migrate data to a new distribution */
/* First register newly needed data */
for(x = 0; x < X; x++)
{
for (y = 0; y < Y; y++)
{
int mpi_rank = my_distrib2(x, y, size);
if (!data_handles[x][y] && (mpi_rank == my_rank
|| my_rank == my_distrib2(x+1, y, size) || my_rank == my_distrib2(x-1, y, size)
|| my_rank == my_distrib2(x, y+1, size) || my_rank == my_distrib2(x, y-1, size)))
{
/* Register newly-needed data */
starpu_variable_data_register(&data_handles[x][y], -1, (uintptr_t)NULL, sizeof(float));
starpu_mpi_data_register(data_handles[x][y], (y*X)+x, mpi_rank);
}
if (data_handles[x][y] && mpi_rank != starpu_mpi_data_get_rank(data_handles[x][y]))
{
/* Migrate the data */
starpu_mpi_get_data_on_node_detached(MPI_COMM_WORLD, data_handles[x][y], mpi_rank, NULL, NULL);
/* And register new rank of the matrix */
starpu_mpi_data_set_rank(data_handles[x][y], mpi_rank);
}
}
}
/* Second computation with new distribution */
for(loop=0 ; loop<niter; loop++)
{
for (x = 1; x < X-1; x++)
{
for (y = 1; y < Y-1; y++)
{
starpu_mpi_task_insert(MPI_COMM_WORLD, &stencil5_cl, STARPU_RW, data_handles[x][y],
STARPU_R, data_handles[x-1][y], STARPU_R, data_handles[x+1][y],
STARPU_R, data_handles[x][y-1], STARPU_R, data_handles[x][y+1],
0);
}
}
}
FPRINTF(stderr, "Waiting ...\n");
starpu_task_wait_for_all();
/* Unregister data */
for(x = 0; x < X; x++)
{
for (y = 0; y < Y; y++)
{
if (data_handles[x][y])
{
int mpi_rank = my_distrib(x, y, size);
/* Get back data to original place where the user-provided buffer is. */
starpu_mpi_get_data_on_node_detached(MPI_COMM_WORLD, data_handles[x][y], mpi_rank, NULL, NULL);
/* Register original rank of the matrix (although useless) */
starpu_mpi_data_set_rank(data_handles[x][y], mpi_rank);
/* And unregister it */
starpu_data_unregister(data_handles[x][y]);
}
}
}
starpu_mpi_shutdown();
starpu_shutdown();
if (display)
{
FPRINTF(stdout, "[%d] mean=%2.2f\n", my_rank, mean);
for(x = 0; x < X; x++)
{
FPRINTF(stdout, "[%d] ", my_rank);
for (y = 0; y < Y; y++)
{
FPRINTF(stdout, "%2.2f ", matrix[x][y]);
}
FPRINTF(stdout, "\n");
}
}
return 0;
}
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;
}
int main(int argc, char **argv)
{
int rank, nodes;
int ret=0;
int compare=0;
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");
starpu_mpi_comm_rank(MPI_COMM_WORLD, &rank);
starpu_mpi_comm_size(MPI_COMM_WORLD, &nodes);
if (nodes < 2)
{
fprintf(stderr, "This program needs at least 2 nodes (%d available)\n", nodes);
ret = 77;
}
else
{
starpu_data_handle_t handle;
starpu_data_handle_t handle2;
double real[2] = {4.0, 2.0};
double imaginary[2] = {7.0, 9.0};
double real2[2] = {14.0, 12.0};
double imaginary2[2] = {17.0, 19.0};
if (rank == 1)
{
real[0] = 0.0;
real[1] = 0.0;
imaginary[0] = 0.0;
imaginary[1] = 0.0;
}
starpu_complex_data_register(&handle, STARPU_MAIN_RAM, real, imaginary, 2);
starpu_complex_data_register(&handle2, -1, real2, imaginary2, 2);
if (rank == 0)
{
int *compare_ptr = &compare;
starpu_task_insert(&cl_display, STARPU_VALUE, "node0 initial value", strlen("node0 initial value")+1, STARPU_R, handle, 0);
starpu_mpi_isend_detached(handle, 1, 10, MPI_COMM_WORLD, NULL, NULL);
starpu_mpi_irecv_detached(handle2, 1, 20, MPI_COMM_WORLD, NULL, NULL);
starpu_task_insert(&cl_display, STARPU_VALUE, "node0 received value", strlen("node0 received value")+1, STARPU_R, handle2, 0);
starpu_task_insert(&cl_compare, STARPU_R, handle, STARPU_R, handle2, STARPU_VALUE, &compare_ptr, sizeof(compare_ptr), 0);
}
else if (rank == 1)
{
starpu_mpi_irecv_detached(handle, 0, 10, MPI_COMM_WORLD, NULL, NULL);
starpu_task_insert(&cl_display, STARPU_VALUE, "node1 received value", strlen("node1 received value")+1, STARPU_R, handle, 0);
starpu_mpi_isend_detached(handle, 0, 20, MPI_COMM_WORLD, NULL, NULL);
}
starpu_task_wait_for_all();
starpu_data_unregister(handle);
starpu_data_unregister(handle2);
}
starpu_mpi_shutdown();
starpu_shutdown();
if (rank == 0) return !compare; else return ret;
}
int main(int argc, char **argv)
{
int ret, rank, size, err, node;
long x0=32;
int x1=23;
starpu_data_handle_t data_handlesx0;
starpu_data_handle_t data_handlesx1;
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 && rank != 1) goto end;
if (rank == 0)
{
starpu_variable_data_register(&data_handlesx0, STARPU_MAIN_RAM, (uintptr_t)&x0, sizeof(x0));
starpu_mpi_data_register(data_handlesx0, 0, rank);
starpu_variable_data_register(&data_handlesx1, -1, (uintptr_t)NULL, sizeof(x1));
starpu_mpi_data_register(data_handlesx1, 1, 1);
}
else if (rank == 1)
{
starpu_variable_data_register(&data_handlesx1, STARPU_MAIN_RAM, (uintptr_t)&x1, sizeof(x1));
starpu_mpi_data_register(data_handlesx1, 1, rank);
starpu_variable_data_register(&data_handlesx0, -1, (uintptr_t)NULL, sizeof(x0));
starpu_mpi_data_register(data_handlesx0, 0, 0);
}
node = starpu_mpi_data_get_rank(data_handlesx1);
err = starpu_mpi_task_insert(MPI_COMM_WORLD, &mycodelet_r_w,
STARPU_VALUE, &node, sizeof(node),
STARPU_R, data_handlesx0, STARPU_W, data_handlesx1,
0);
assert(err == 0);
node = starpu_mpi_data_get_rank(data_handlesx0);
err = starpu_mpi_task_insert(MPI_COMM_WORLD, &mycodelet_rw_r,
STARPU_VALUE, &node, sizeof(node),
STARPU_RW, data_handlesx0, STARPU_R, data_handlesx1,
0);
assert(err == 0);
err = starpu_mpi_task_insert(MPI_COMM_WORLD, &mycodelet_rw_rw,
STARPU_VALUE, &node, sizeof(node),
STARPU_RW, data_handlesx0, STARPU_RW, data_handlesx1,
0);
assert(err == 0);
node = 1;
err = starpu_mpi_task_insert(MPI_COMM_WORLD, &mycodelet_rw_rw,
STARPU_VALUE, &node, sizeof(node),
STARPU_RW, data_handlesx0, STARPU_RW, data_handlesx1, STARPU_EXECUTE_ON_NODE, node,
0);
assert(err == 0);
node = 0;
err = starpu_mpi_task_insert(MPI_COMM_WORLD, &mycodelet_rw_rw,
STARPU_VALUE, &node, sizeof(node),
STARPU_RW, data_handlesx0, STARPU_RW, data_handlesx1, STARPU_EXECUTE_ON_NODE, node,
0);
assert(err == 0);
node = 0;
err = starpu_mpi_task_insert(MPI_COMM_WORLD, &mycodelet_r_r,
STARPU_VALUE, &node, sizeof(node),
STARPU_R, data_handlesx0, STARPU_R, data_handlesx1, STARPU_EXECUTE_ON_NODE, node,
0);
assert(err == 0);
/* Here the value specified by the property STARPU_EXECUTE_ON_NODE is
going to overwrite the node even though the data model clearly specifies
which node is going to execute the codelet */
node = 0;
err = starpu_mpi_task_insert(MPI_COMM_WORLD, &mycodelet_r_w,
STARPU_VALUE, &node, sizeof(node),
STARPU_R, data_handlesx0, STARPU_W, data_handlesx1, STARPU_EXECUTE_ON_NODE, node,
0);
assert(err == 0);
/* Here the value specified by the property STARPU_EXECUTE_ON_NODE is
going to overwrite the node even though the data model clearly specifies
which node is going to execute the codelet */
node = 0;
err = starpu_mpi_task_insert(MPI_COMM_WORLD, &mycodelet_w_r,
STARPU_VALUE, &node, sizeof(node),
STARPU_W, data_handlesx0, STARPU_R, data_handlesx1, STARPU_EXECUTE_ON_NODE, node,
0);
assert(err == 0);
FPRINTF_MPI(stderr, "Waiting ...\n");
starpu_task_wait_for_all();
starpu_data_unregister(data_handlesx0);
starpu_data_unregister(data_handlesx1);
end:
starpu_mpi_shutdown();
starpu_shutdown();
return 0;
}
int main(int argc, char **argv)
{
int rank;
int world_size;
/*
* Initialization
*/
int thread_support;
if (MPI_Init_thread(&argc, &argv, MPI_THREAD_SERIALIZED, &thread_support) != MPI_SUCCESS) {
fprintf(stderr,"MPI_Init_thread failed\n");
exit(1);
}
if (thread_support == MPI_THREAD_FUNNELED)
fprintf(stderr,"Warning: MPI only has funneled thread support, not serialized, hoping this will work\n");
if (thread_support < MPI_THREAD_FUNNELED)
fprintf(stderr,"Warning: MPI does not have thread support!\n");
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &world_size);
starpu_srand48((long int)time(NULL));
parse_args(rank, argc, argv);
int ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
/* We disable sequential consistency in this example */
starpu_data_set_default_sequential_consistency_flag(0);
starpu_mpi_init(NULL, NULL, 0);
STARPU_ASSERT(p*q == world_size);
starpu_cublas_init();
int barrier_ret = MPI_Barrier(MPI_COMM_WORLD);
STARPU_ASSERT(barrier_ret == MPI_SUCCESS);
/*
* Problem Init
*/
init_matrix(rank);
fprintf(stderr, "Rank %d: allocated (%d + %d) MB = %d MB\n", rank,
(int)(allocated_memory/(1024*1024)),
(int)(allocated_memory_extra/(1024*1024)),
(int)((allocated_memory+allocated_memory_extra)/(1024*1024)));
display_grid(rank, nblocks);
TYPE *a_r = NULL;
// STARPU_PLU(display_data_content)(a_r, size);
TYPE *x, *y;
if (check)
{
x = calloc(size, sizeof(TYPE));
STARPU_ASSERT(x);
y = calloc(size, sizeof(TYPE));
STARPU_ASSERT(y);
if (rank == 0)
{
unsigned ind;
for (ind = 0; ind < size; ind++)
x[ind] = (TYPE)starpu_drand48();
}
a_r = STARPU_PLU(reconstruct_matrix)(size, nblocks);
if (rank == 0)
STARPU_PLU(display_data_content)(a_r, size);
// STARPU_PLU(compute_ax)(size, x, y, nblocks, rank);
}
barrier_ret = MPI_Barrier(MPI_COMM_WORLD);
STARPU_ASSERT(barrier_ret == MPI_SUCCESS);
double timing = STARPU_PLU(plu_main)(nblocks, rank, world_size);
/*
* Report performance
*/
int reduce_ret;
double min_timing = timing;
double max_timing = timing;
double sum_timing = timing;
reduce_ret = MPI_Reduce(&timing, &min_timing, 1, MPI_DOUBLE, MPI_MIN, 0, MPI_COMM_WORLD);
STARPU_ASSERT(reduce_ret == MPI_SUCCESS);
reduce_ret = MPI_Reduce(&timing, &max_timing, 1, MPI_DOUBLE, MPI_MAX, 0, MPI_COMM_WORLD);
STARPU_ASSERT(reduce_ret == MPI_SUCCESS);
reduce_ret = MPI_Reduce(&timing, &sum_timing, 1, MPI_DOUBLE, MPI_SUM, 0, MPI_COMM_WORLD);
STARPU_ASSERT(reduce_ret == MPI_SUCCESS);
if (rank == 0)
{
fprintf(stderr, "Computation took: %f ms\n", max_timing/1000);
fprintf(stderr, "\tMIN : %f ms\n", min_timing/1000);
fprintf(stderr, "\tMAX : %f ms\n", max_timing/1000);
fprintf(stderr, "\tAVG : %f ms\n", sum_timing/(world_size*1000));
unsigned n = size;
double flop = (2.0f*n*n*n)/3.0f;
fprintf(stderr, "Synthetic GFlops : %2.2f\n", (flop/max_timing/1000.0f));
}
/*
* Test Result Correctness
*/
if (check)
{
/*
* Compute || A - LU ||
*/
STARPU_PLU(compute_lu_matrix)(size, nblocks, a_r);
#if 0
/*
* Compute || Ax - LUx ||
*/
unsigned ind;
y2 = calloc(size, sizeof(TYPE));
STARPU_ASSERT(y);
if (rank == 0)
{
for (ind = 0; ind < size; ind++)
{
y2[ind] = (TYPE)0.0;
}
}
STARPU_PLU(compute_lux)(size, x, y2, nblocks, rank);
/* Compute y2 = y2 - y */
CPU_AXPY(size, -1.0, y, 1, y2, 1);
TYPE err = CPU_ASUM(size, y2, 1);
int max = CPU_IAMAX(size, y2, 1);
fprintf(stderr, "(A - LU)X Avg error : %e\n", err/(size*size));
fprintf(stderr, "(A - LU)X Max error : %e\n", y2[max]);
#endif
}
/*
* Termination
*/
barrier_ret = MPI_Barrier(MPI_COMM_WORLD);
STARPU_ASSERT(barrier_ret == MPI_SUCCESS);
starpu_cublas_shutdown();
starpu_mpi_shutdown();
starpu_shutdown();
#if 0
MPI_Finalize();
#endif
return 0;
}
int main(int argc, char **argv)
{
int size, x;
int color;
MPI_Comm newcomm;
int rank, newrank;
int ret;
starpu_data_handle_t data[3];
int value = 90;
MPI_Init(&argc, &argv);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Comm_size(MPI_COMM_WORLD, &size);
if (size < 4)
{
FPRINTF(stderr, "We need at least 4 processes.\n");
MPI_Finalize();
return STARPU_TEST_SKIPPED;
}
color = rank%2;
MPI_Comm_split(MPI_COMM_WORLD, color, rank, &newcomm);
MPI_Comm_rank(newcomm, &newrank);
FPRINTF(stderr, "[%d][%d] color %d\n", rank, newrank, color);
if (newrank == 0)
{
FPRINTF(stderr, "[%d][%d] sending %d\n", rank, newrank, rank);
MPI_Send(&rank, 1, MPI_INT, 1, 10, newcomm);
}
else if (newrank == 1)
{
MPI_Recv(&x, 1, MPI_INT, 0, 10, newcomm, MPI_STATUS_IGNORE);
FPRINTF(stderr, "[%d][%d] received %d\n", rank, newrank, x);
}
ret = starpu_init(NULL);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
ret = starpu_mpi_init(NULL, NULL, 0);
STARPU_CHECK_RETURN_VALUE(ret, "starpu_mpi_init");
if (rank == 0)
{
starpu_variable_data_register(&data[2], STARPU_MAIN_RAM, (uintptr_t)&value, sizeof(int));
}
else
starpu_variable_data_register(&data[2], -1, (uintptr_t)NULL, sizeof(int));
starpu_mpi_data_register_comm(data[2], 44, 0, MPI_COMM_WORLD);
if (newrank == 0)
{
starpu_variable_data_register(&data[0], STARPU_MAIN_RAM, (uintptr_t)&rank, sizeof(int));
starpu_variable_data_register(&data[1], STARPU_MAIN_RAM, (uintptr_t)&rank, sizeof(int));
starpu_mpi_data_register_comm(data[1], 22, 0, newcomm);
}
else
starpu_variable_data_register(&data[0], -1, (uintptr_t)NULL, sizeof(int));
starpu_mpi_data_register_comm(data[0], 12, 0, newcomm);
if (newrank == 0)
{
starpu_mpi_req req[2];
starpu_mpi_issend(data[1], &req[0], 1, 22, newcomm);
starpu_mpi_isend(data[0], &req[1], 1, 12, newcomm);
starpu_mpi_wait(&req[0], MPI_STATUS_IGNORE);
starpu_mpi_wait(&req[1], MPI_STATUS_IGNORE);
}
else if (newrank == 1)
{
int *xx;
starpu_mpi_recv(data[0], 0, 12, newcomm, MPI_STATUS_IGNORE);
starpu_data_acquire(data[0], STARPU_RW);
xx = (int *)starpu_variable_get_local_ptr(data[0]);
starpu_data_release(data[0]);
FPRINTF(stderr, "[%d][%d] received %d\n", rank, newrank, *xx);
STARPU_ASSERT_MSG(x==*xx, "Received value %d is incorrect (should be %d)\n", *xx, x);
starpu_variable_data_register(&data[1], -1, (uintptr_t)NULL, sizeof(int));
starpu_mpi_data_register_comm(data[1], 22, 0, newcomm);
starpu_mpi_recv(data[0], 0, 22, newcomm, MPI_STATUS_IGNORE);
starpu_data_acquire(data[0], STARPU_RW);
xx = (int *)starpu_variable_get_local_ptr(data[0]);
starpu_data_release(data[0]);
FPRINTF(stderr, "[%d][%d] received %d\n", rank, newrank, *xx);
STARPU_ASSERT_MSG(x==*xx, "Received value %d is incorrect (should be %d)\n", *xx, x);
}
if (rank == 0)
{
starpu_data_acquire(data[2], STARPU_RW);
int rvalue = *((int *)starpu_variable_get_local_ptr(data[2]));
starpu_data_release(data[2]);
FPRINTF_MPI(stderr, "sending value %d to %d and receiving from %d\n", rvalue, 1, size-1);
starpu_mpi_send(data[2], 1, 44, MPI_COMM_WORLD);
starpu_mpi_recv(data[2], size-1, 44, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
starpu_data_acquire(data[2], STARPU_RW);
int *xx = (int *)starpu_variable_get_local_ptr(data[2]);
starpu_data_release(data[2]);
FPRINTF_MPI(stderr, "Value back is %d\n", *xx);
STARPU_ASSERT_MSG(*xx == rvalue + (2*(size-1)), "Received value %d is incorrect (should be %d)\n", *xx, rvalue + (2*(size-1)));
}
else
{
int next = (rank == size-1) ? 0 : rank+1;
starpu_mpi_recv(data[2], rank-1, 44, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
starpu_data_acquire(data[2], STARPU_RW);
int *xx = (int *)starpu_variable_get_local_ptr(data[2]);
FPRINTF_MPI(stderr, "receiving %d from %d and sending %d to %d\n", *xx, rank-1, *xx+2, next);
*xx = *xx + 2;
starpu_data_release(data[2]);
starpu_mpi_send(data[2], next, 44, MPI_COMM_WORLD);
}
if (newrank == 0 || newrank == 1)
{
starpu_mpi_insert_task(newcomm, &mycodelet,
STARPU_RW, data[0],
STARPU_VALUE, &x, sizeof(x),
STARPU_EXECUTE_ON_NODE, 1,
0);
starpu_task_wait_for_all();
starpu_data_unregister(data[0]);
starpu_data_unregister(data[1]);
}
starpu_data_unregister(data[2]);
starpu_mpi_shutdown();
starpu_shutdown();
MPI_Comm_free(&newcomm);
MPI_Finalize();
return 0;
}