static int mca_pml_ucx_send_worker_address(void)
{
ucp_address_t *address;
ucs_status_t status;
size_t addrlen;
int rc;
status = ucp_worker_get_address(ompi_pml_ucx.ucp_worker, &address, &addrlen);
if (UCS_OK != status) {
PML_UCX_ERROR("Failed to get worker address");
return OMPI_ERROR;
}
OPAL_MODEX_SEND(rc, OPAL_PMIX_GLOBAL,
&mca_pml_ucx_component.pmlm_version, (void*)address, addrlen);
if (OMPI_SUCCESS != rc) {
PML_UCX_ERROR("Open MPI couldn't distribute EP connection details");
return OMPI_ERROR;
}
ucp_worker_release_address(ompi_pml_ucx.ucp_worker, address);
return OMPI_SUCCESS;
}
static ucs_status_t ucp_perf_test_setup_endpoints(ucx_perf_context_t *perf,
uint64_t features)
{
const size_t buffer_size = 2048;
ucx_perf_ep_info_t info, *remote_info;
unsigned group_size, i, group_index;
ucp_address_t *address;
size_t address_length = 0;
ucp_ep_params_t ep_params;
ucs_status_t status;
struct iovec vec[3];
void *rkey_buffer;
void *req = NULL;
void *buffer;
group_size = rte_call(perf, group_size);
group_index = rte_call(perf, group_index);
status = ucp_worker_get_address(perf->ucp.worker, &address, &address_length);
if (status != UCS_OK) {
if (perf->params.flags & UCX_PERF_TEST_FLAG_VERBOSE) {
ucs_error("ucp_worker_get_address() failed: %s", ucs_status_string(status));
}
goto err;
}
info.ucp.addr_len = address_length;
info.recv_buffer = (uintptr_t)perf->recv_buffer;
vec[0].iov_base = &info;
vec[0].iov_len = sizeof(info);
vec[1].iov_base = address;
vec[1].iov_len = address_length;
if (features & (UCP_FEATURE_RMA|UCP_FEATURE_AMO32|UCP_FEATURE_AMO64)) {
status = ucp_rkey_pack(perf->ucp.context, perf->ucp.recv_memh,
&rkey_buffer, &info.rkey_size);
if (status != UCS_OK) {
if (perf->params.flags & UCX_PERF_TEST_FLAG_VERBOSE) {
ucs_error("ucp_rkey_pack() failed: %s", ucs_status_string(status));
}
ucp_worker_release_address(perf->ucp.worker, address);
goto err;
}
vec[2].iov_base = rkey_buffer;
vec[2].iov_len = info.rkey_size;
rte_call(perf, post_vec, vec, 3, &req);
ucp_rkey_buffer_release(rkey_buffer);
} else {
info.rkey_size = 0;
rte_call(perf, post_vec, vec, 2, &req);
}
ucp_worker_release_address(perf->ucp.worker, address);
rte_call(perf, exchange_vec, req);
perf->ucp.peers = calloc(group_size, sizeof(*perf->uct.peers));
if (perf->ucp.peers == NULL) {
goto err;
}
buffer = malloc(buffer_size);
if (buffer == NULL) {
ucs_error("Failed to allocate RTE receive buffer");
status = UCS_ERR_NO_MEMORY;
goto err_destroy_eps;
}
for (i = 0; i < group_size; ++i) {
if (i == group_index) {
continue;
}
rte_call(perf, recv, i, buffer, buffer_size, req);
remote_info = buffer;
address = (void*)(remote_info + 1);
rkey_buffer = (void*)address + remote_info->ucp.addr_len;
perf->ucp.peers[i].remote_addr = remote_info->recv_buffer;
ep_params.field_mask = UCP_EP_PARAM_FIELD_REMOTE_ADDRESS;
ep_params.address = address;
status = ucp_ep_create(perf->ucp.worker, &ep_params, &perf->ucp.peers[i].ep);
if (status != UCS_OK) {
if (perf->params.flags & UCX_PERF_TEST_FLAG_VERBOSE) {
ucs_error("ucp_ep_create() failed: %s", ucs_status_string(status));
}
goto err_free_buffer;
}
if (remote_info->rkey_size > 0) {
status = ucp_ep_rkey_unpack(perf->ucp.peers[i].ep, rkey_buffer,
&perf->ucp.peers[i].rkey);
if (status != UCS_OK) {
if (perf->params.flags & UCX_PERF_TEST_FLAG_VERBOSE) {
ucs_fatal("ucp_rkey_unpack() failed: %s", ucs_status_string(status));
}
goto err_free_buffer;
}
} else {
perf->ucp.peers[i].rkey = NULL;
}
}
free(buffer);
status = ucp_perf_test_exchange_status(perf, UCS_OK);
if (status != UCS_OK) {
ucp_perf_test_destroy_eps(perf, group_size);
}
return status;
err_free_buffer:
free(buffer);
err_destroy_eps:
ucp_perf_test_destroy_eps(perf, group_size);
err:
(void)ucp_perf_test_exchange_status(perf, status);
return status;
}
int main(int argc, char **argv)
{
/* UCP temporary vars */
ucp_params_t ucp_params;
ucp_config_t *config;
ucs_status_t status;
/* UCP handler objects */
ucp_context_h ucp_context;
ucp_worker_h ucp_worker;
/* OOB connection vars */
uint64_t addr_len = 0;
char *server = NULL;
int oob_sock = -1;
int ret = -1;
/* Parse the command line */
if (parse_cmd(argc, argv, &server) != UCS_OK) {
goto err;
}
/* UCP initialization */
status = ucp_config_read(NULL, NULL, &config);
if (status != UCS_OK) {
goto err;
}
ucp_params.features = UCP_FEATURE_TAG;
if (ucp_test_mode == TEST_MODE_WAIT || ucp_test_mode == TEST_MODE_EVENTFD) {
ucp_params.features |= UCP_FEATURE_WAKEUP;
}
ucp_params.request_size = sizeof(struct ucx_context);
ucp_params.request_init = request_init;
ucp_params.request_cleanup = NULL;
status = ucp_init(&ucp_params, config, &ucp_context);
ucp_config_print(config, stdout, NULL, UCS_CONFIG_PRINT_CONFIG);
ucp_config_release(config);
if (status != UCS_OK) {
goto err;
}
status = ucp_worker_create(ucp_context, UCS_THREAD_MODE_SINGLE, &ucp_worker);
if (status != UCS_OK) {
goto err_cleanup;
}
status = ucp_worker_get_address(ucp_worker, &local_addr, &local_addr_len);
if (status != UCS_OK) {
goto err_worker;
}
printf("[0x%x] local address length: %zu\n",
(unsigned int)pthread_self(), local_addr_len);
/* OOB connection establishment */
if (server) {
peer_addr_len = local_addr_len;
oob_sock = run_client(server);
if (oob_sock < 0) {
goto err_addr;
}
ret = recv(oob_sock, &addr_len, sizeof(addr_len), 0);
if (ret < 0) {
fprintf(stderr, "failed to receive address length\n");
goto err_addr;
}
peer_addr_len = addr_len;
peer_addr = malloc(peer_addr_len);
if (!peer_addr) {
fprintf(stderr, "unable to allocate memory\n");
goto err_addr;
}
ret = recv(oob_sock, peer_addr, peer_addr_len, 0);
if (ret < 0) {
fprintf(stderr, "failed to receive address\n");
goto err_peer_addr;
}
} else {
oob_sock = run_server();
if (oob_sock < 0) {
goto err_peer_addr;
}
addr_len = local_addr_len;
ret = send(oob_sock, &addr_len, sizeof(addr_len), 0);
if (ret < 0 || ret != sizeof(addr_len)) {
fprintf(stderr, "failed to send address length\n");
goto err_peer_addr;
}
ret = send(oob_sock, local_addr, local_addr_len, 0);
if (ret < 0 || ret != local_addr_len) {
fprintf(stderr, "failed to send address\n");
goto err_peer_addr;
}
}
close(oob_sock);
ret = run_test(server, ucp_worker);
err_peer_addr:
free(peer_addr);
err_addr:
ucp_worker_release_address(ucp_worker, local_addr);
err_worker:
ucp_worker_destroy(ucp_worker);
err_cleanup:
ucp_cleanup(ucp_context);
err:
return ret;
}
void print_ucp_info(int print_opts, ucs_config_print_flags_t print_flags,
uint64_t features)
{
ucp_config_t *config;
ucs_status_t status;
ucp_context_h context;
ucp_worker_h worker;
ucp_params_t params;
ucp_worker_params_t worker_params;
ucp_ep_params_t ep_params;
ucp_address_t *address;
size_t address_length;
ucp_ep_h ep;
status = ucp_config_read(NULL, NULL, &config);
if (status != UCS_OK) {
return;
}
memset(¶ms, 0, sizeof(params));
params.features = features;
status = ucp_init(¶ms, config, &context);
if (status != UCS_OK) {
printf("<Failed to create UCP context>\n");
goto out_release_config;
}
if (print_opts & PRINT_UCP_CONTEXT) {
ucp_context_print_info(context, stdout);
}
if (!(print_opts & (PRINT_UCP_WORKER|PRINT_UCP_EP))) {
goto out_cleanup_context;
}
worker_params.field_mask = UCP_WORKER_PARAM_FIELD_THREAD_MODE;
worker_params.thread_mode = UCS_THREAD_MODE_MULTI;
status = ucp_worker_create(context, &worker_params, &worker);
if (status != UCS_OK) {
printf("<Failed to create UCP worker>\n");
goto out_cleanup_context;
}
if (print_opts & PRINT_UCP_WORKER) {
ucp_worker_print_info(worker, stdout);
}
if (print_opts & PRINT_UCP_EP) {
status = ucp_worker_get_address(worker, &address, &address_length);
if (status != UCS_OK) {
printf("<Failed to get UCP worker address>\n");
goto out_destroy_worker;
}
ep_params.field_mask = UCP_EP_PARAM_FIELD_REMOTE_ADDRESS;
ep_params.address = address;
status = ucp_ep_create(worker, &ep_params, &ep);
ucp_worker_release_address(worker, address);
if (status != UCS_OK) {
printf("<Failed to get create UCP endpoint>\n");
goto out_destroy_worker;
}
ucp_ep_print_info(ep, stdout);
ucp_ep_destroy(ep);
}
out_destroy_worker:
ucp_worker_destroy(worker);
out_cleanup_context:
ucp_cleanup(context);
out_release_config:
ucp_config_release(config);
}
int mca_spml_ucx_add_procs(oshmem_proc_t** procs, size_t nprocs)
{
size_t i, n;
int rc = OSHMEM_ERROR;
int my_rank = oshmem_my_proc_id();
ucs_status_t err;
ucp_address_t *wk_local_addr;
size_t wk_addr_len;
int *wk_roffs, *wk_rsizes;
char *wk_raddrs;
mca_spml_ucx.ucp_peers = (ucp_peer_t *) calloc(nprocs, sizeof(*(mca_spml_ucx.ucp_peers)));
if (NULL == mca_spml_ucx.ucp_peers) {
goto error;
}
err = ucp_worker_get_address(mca_spml_ucx.ucp_worker, &wk_local_addr, &wk_addr_len);
if (err != UCS_OK) {
goto error;
}
dump_address(my_rank, (char *)wk_local_addr, wk_addr_len);
rc = oshmem_shmem_xchng(wk_local_addr, wk_addr_len, nprocs,
(void **)&wk_raddrs, &wk_roffs, &wk_rsizes);
if (rc != OSHMEM_SUCCESS) {
goto error;
}
opal_progress_register(spml_ucx_progress);
/* Get the EP connection requests for all the processes from modex */
for (n = 0; n < nprocs; ++n) {
i = (my_rank + n) % nprocs;
dump_address(i, (char *)(wk_raddrs + wk_roffs[i]), wk_rsizes[i]);
err = ucp_ep_create(mca_spml_ucx.ucp_worker,
(ucp_address_t *)(wk_raddrs + wk_roffs[i]),
&mca_spml_ucx.ucp_peers[i].ucp_conn);
if (UCS_OK != err) {
SPML_ERROR("ucp_ep_create failed!!!\n");
goto error2;
}
procs[i]->num_transports = 1;
procs[i]->transport_ids = spml_ucx_transport_ids;
}
ucp_worker_release_address(mca_spml_ucx.ucp_worker, wk_local_addr);
free(wk_raddrs);
free(wk_rsizes);
free(wk_roffs);
SPML_VERBOSE(50, "*** ADDED PROCS ***");
return OSHMEM_SUCCESS;
error2:
for (i = 0; i < nprocs; ++i) {
if (mca_spml_ucx.ucp_peers[i].ucp_conn) {
ucp_ep_destroy(mca_spml_ucx.ucp_peers[i].ucp_conn);
}
}
if (mca_spml_ucx.ucp_peers)
free(mca_spml_ucx.ucp_peers);
if (wk_raddrs)
free(wk_raddrs);
if (wk_rsizes)
free(wk_rsizes);
if (wk_roffs)
free(wk_roffs);
if (mca_spml_ucx.ucp_peers)
free(mca_spml_ucx.ucp_peers);
error:
rc = OSHMEM_ERR_OUT_OF_RESOURCE;
SPML_ERROR("add procs FAILED rc=%d", rc);
return rc;
}
static ucs_status_t ucp_perf_test_setup_endpoints(ucx_perf_context_t *perf,
uint64_t features)
{
unsigned group_size, i, group_index;
ucp_address_t *address;
size_t address_length = 0;
ucs_status_t status;
struct iovec vec[3];
void *rkey_buffer;
size_t rkey_size;
void *req = NULL;
int iov_len;
group_size = rte_call(perf, group_size);
group_index = rte_call(perf, group_index);
status = ucp_worker_get_address(perf->ucp.worker, &address, &address_length);
if (status != UCS_OK) {
if (perf->params.flags & UCX_PERF_TEST_FLAG_VERBOSE) {
ucs_error("ucp_worker_get_address() failed: %s", ucs_status_string(status));
}
goto err;
}
vec[0].iov_base = address;
vec[0].iov_len = address_length;
vec[1].iov_base = &perf->recv_buffer;
vec[1].iov_len = sizeof(uintptr_t);
if (features & (UCP_FEATURE_RMA|UCP_FEATURE_AMO32|UCP_FEATURE_AMO64)) {
status = ucp_rkey_pack(perf->ucp.context, perf->ucp.recv_memh,
&rkey_buffer, &rkey_size);
if (status != UCS_OK) {
if (perf->params.flags & UCX_PERF_TEST_FLAG_VERBOSE) {
ucs_error("ucp_rkey_pack() failed: %s", ucs_status_string(status));
}
ucp_worker_release_address(perf->ucp.worker, address);
goto err;
}
vec[2].iov_base = rkey_buffer;
vec[2].iov_len = rkey_size;
iov_len = 3;
} else {
rkey_buffer = NULL;
iov_len = 2;
}
rte_call(perf, post_vec, vec, iov_len, &req);
if (rkey_buffer != NULL) {
ucp_rkey_buffer_release(rkey_buffer);
}
ucp_worker_release_address(perf->ucp.worker, address);
rte_call(perf, exchange_vec, req);
perf->ucp.peers = calloc(group_size, sizeof(*perf->uct.peers));
if (perf->ucp.peers == NULL) {
goto err;
}
for (i = 0; i < group_size; ++i) {
if (i == group_index) {
continue;
}
address = malloc(address_length);
rkey_buffer = NULL;
vec[0].iov_base = address;
vec[0].iov_len = address_length;
vec[1].iov_base = &perf->ucp.peers[i].remote_addr;
vec[1].iov_len = sizeof(uintptr_t);
if (iov_len > 2) {
rkey_buffer = malloc(rkey_size);
vec[2].iov_base = rkey_buffer;
vec[2].iov_len = rkey_size;
}
rte_call(perf, recv_vec, i, vec, iov_len, req);
status = ucp_ep_create(perf->ucp.worker, address, &perf->ucp.peers[i].ep);
if (status != UCS_OK) {
if (perf->params.flags & UCX_PERF_TEST_FLAG_VERBOSE) {
ucs_error("ucp_ep_create() failed: %s", ucs_status_string(status));
}
free(rkey_buffer);
free(address);
goto err_destroy_eps;
}
free(address);
if (iov_len > 2) {
status = ucp_ep_rkey_unpack(perf->ucp.peers[i].ep, rkey_buffer,
&perf->ucp.peers[i].rkey);
if (status != UCS_OK) {
if (perf->params.flags & UCX_PERF_TEST_FLAG_VERBOSE) {
ucs_error("ucp_rkey_unpack() failed: %s", ucs_status_string(status));
}
free(rkey_buffer);
goto err_destroy_eps;
}
} else {
perf->ucp.peers[i].rkey = NULL;
}
free(rkey_buffer);
}
status = ucp_perf_test_exchange_status(perf, UCS_OK);
if (status != UCS_OK) {
ucp_perf_test_destroy_eps(perf, group_size);
}
return status;
err_destroy_eps:
ucp_perf_test_destroy_eps(perf, group_size);
err:
(void)ucp_perf_test_exchange_status(perf, status);
return status;
}
void print_ucp_info(int print_opts, ucs_config_print_flags_t print_flags,
uint64_t ctx_features, const ucp_ep_params_t *base_ep_params,
size_t estimated_num_eps, unsigned dev_type_bitmap,
const char *mem_size)
{
ucp_config_t *config;
ucs_status_t status;
ucs_status_ptr_t status_ptr;
ucp_context_h context;
ucp_worker_h worker;
ucp_params_t params;
ucp_worker_params_t worker_params;
ucp_ep_params_t ep_params;
ucp_address_t *address;
size_t address_length;
resource_usage_t usage;
ucp_ep_h ep;
status = ucp_config_read(NULL, NULL, &config);
if (status != UCS_OK) {
return;
}
memset(¶ms, 0, sizeof(params));
params.field_mask = UCP_PARAM_FIELD_FEATURES |
UCP_PARAM_FIELD_ESTIMATED_NUM_EPS;
params.features = ctx_features;
params.estimated_num_eps = estimated_num_eps;
get_resource_usage(&usage);
if (!(dev_type_bitmap & UCS_BIT(UCT_DEVICE_TYPE_SELF))) {
ucp_config_modify(config, "SELF_DEVICES", "");
}
if (!(dev_type_bitmap & UCS_BIT(UCT_DEVICE_TYPE_SHM))) {
ucp_config_modify(config, "SHM_DEVICES", "");
}
if (!(dev_type_bitmap & UCS_BIT(UCT_DEVICE_TYPE_NET))) {
ucp_config_modify(config, "NET_DEVICES", "");
}
status = ucp_init(¶ms, config, &context);
if (status != UCS_OK) {
printf("<Failed to create UCP context>\n");
goto out_release_config;
}
if ((print_opts & PRINT_MEM_MAP) && (mem_size != NULL)) {
ucp_mem_print_info(mem_size, context, stdout);
}
if (print_opts & PRINT_UCP_CONTEXT) {
ucp_context_print_info(context, stdout);
print_resource_usage(&usage, "UCP context");
}
if (!(print_opts & (PRINT_UCP_WORKER|PRINT_UCP_EP))) {
goto out_cleanup_context;
}
worker_params.field_mask = UCP_WORKER_PARAM_FIELD_THREAD_MODE;
worker_params.thread_mode = UCS_THREAD_MODE_MULTI;
get_resource_usage(&usage);
status = ucp_worker_create(context, &worker_params, &worker);
if (status != UCS_OK) {
printf("<Failed to create UCP worker>\n");
goto out_cleanup_context;
}
if (print_opts & PRINT_UCP_WORKER) {
ucp_worker_print_info(worker, stdout);
print_resource_usage(&usage, "UCP worker");
}
if (print_opts & PRINT_UCP_EP) {
status = ucp_worker_get_address(worker, &address, &address_length);
if (status != UCS_OK) {
printf("<Failed to get UCP worker address>\n");
goto out_destroy_worker;
}
ep_params = *base_ep_params;
ep_params.field_mask |= UCP_EP_PARAM_FIELD_REMOTE_ADDRESS;
ep_params.address = address;
status = ucp_ep_create(worker, &ep_params, &ep);
ucp_worker_release_address(worker, address);
if (status != UCS_OK) {
printf("<Failed to create UCP endpoint>\n");
goto out_destroy_worker;
}
ucp_ep_print_info(ep, stdout);
status_ptr = ucp_disconnect_nb(ep);
if (UCS_PTR_IS_PTR(status_ptr)) {
do {
ucp_worker_progress(worker);
status = ucp_request_test(status_ptr, NULL);
} while (status == UCS_INPROGRESS);
ucp_request_release(status_ptr);
}
}
out_destroy_worker:
ucp_worker_destroy(worker);
out_cleanup_context:
ucp_cleanup(context);
out_release_config:
ucp_config_release(config);
}
int mca_spml_ucx_add_procs(ompi_proc_t** procs, size_t nprocs)
{
size_t i, j, n;
int rc = OSHMEM_ERROR;
int my_rank = oshmem_my_proc_id();
ucs_status_t err;
ucp_address_t *wk_local_addr;
size_t wk_addr_len;
int *wk_roffs = NULL;
int *wk_rsizes = NULL;
char *wk_raddrs = NULL;
ucp_ep_params_t ep_params;
mca_spml_ucx_ctx_default.ucp_peers = (ucp_peer_t *) calloc(nprocs, sizeof(*(mca_spml_ucx_ctx_default.ucp_peers)));
if (NULL == mca_spml_ucx_ctx_default.ucp_peers) {
goto error;
}
err = ucp_worker_get_address(mca_spml_ucx_ctx_default.ucp_worker, &wk_local_addr, &wk_addr_len);
if (err != UCS_OK) {
goto error;
}
dump_address(my_rank, (char *)wk_local_addr, wk_addr_len);
rc = oshmem_shmem_xchng(wk_local_addr, wk_addr_len, nprocs,
(void **)&wk_raddrs, &wk_roffs, &wk_rsizes);
if (rc != OSHMEM_SUCCESS) {
goto error;
}
opal_progress_register(spml_ucx_default_progress);
mca_spml_ucx.remote_addrs_tbl = (char **)calloc(nprocs, sizeof(char *));
memset(mca_spml_ucx.remote_addrs_tbl, 0, nprocs * sizeof(char *));
/* Get the EP connection requests for all the processes from modex */
for (n = 0; n < nprocs; ++n) {
i = (my_rank + n) % nprocs;
dump_address(i, (char *)(wk_raddrs + wk_roffs[i]), wk_rsizes[i]);
ep_params.field_mask = UCP_EP_PARAM_FIELD_REMOTE_ADDRESS;
ep_params.address = (ucp_address_t *)(wk_raddrs + wk_roffs[i]);
err = ucp_ep_create(mca_spml_ucx_ctx_default.ucp_worker, &ep_params,
&mca_spml_ucx_ctx_default.ucp_peers[i].ucp_conn);
if (UCS_OK != err) {
SPML_UCX_ERROR("ucp_ep_create(proc=%zu/%zu) failed: %s", n, nprocs,
ucs_status_string(err));
goto error2;
}
OSHMEM_PROC_DATA(procs[i])->num_transports = 1;
OSHMEM_PROC_DATA(procs[i])->transport_ids = spml_ucx_transport_ids;
for (j = 0; j < MCA_MEMHEAP_SEG_COUNT; j++) {
mca_spml_ucx_ctx_default.ucp_peers[i].mkeys[j].key.rkey = NULL;
}
mca_spml_ucx.remote_addrs_tbl[i] = (char *)malloc(wk_rsizes[i]);
memcpy(mca_spml_ucx.remote_addrs_tbl[i], (char *)(wk_raddrs + wk_roffs[i]),
wk_rsizes[i]);
}
ucp_worker_release_address(mca_spml_ucx_ctx_default.ucp_worker, wk_local_addr);
free(wk_raddrs);
free(wk_rsizes);
free(wk_roffs);
SPML_UCX_VERBOSE(50, "*** ADDED PROCS ***");
return OSHMEM_SUCCESS;
error2:
for (i = 0; i < nprocs; ++i) {
if (mca_spml_ucx_ctx_default.ucp_peers[i].ucp_conn) {
ucp_ep_destroy(mca_spml_ucx_ctx_default.ucp_peers[i].ucp_conn);
}
if (mca_spml_ucx.remote_addrs_tbl[i]) {
free(mca_spml_ucx.remote_addrs_tbl[i]);
}
}
if (mca_spml_ucx_ctx_default.ucp_peers)
free(mca_spml_ucx_ctx_default.ucp_peers);
if (mca_spml_ucx.remote_addrs_tbl)
free(mca_spml_ucx.remote_addrs_tbl);
free(wk_raddrs);
free(wk_rsizes);
free(wk_roffs);
error:
rc = OSHMEM_ERR_OUT_OF_RESOURCE;
SPML_UCX_ERROR("add procs FAILED rc=%d", rc);
return rc;
}
static int component_select(struct ompi_win_t *win, void **base, size_t size, int disp_unit,
struct ompi_communicator_t *comm, struct opal_info_t *info,
int flavor, int *model) {
ompi_osc_ucx_module_t *module = NULL;
char *name = NULL;
long values[2];
int ret = OMPI_SUCCESS;
ucs_status_t status;
int i, comm_size = ompi_comm_size(comm);
int is_eps_ready;
bool eps_created = false, worker_created = false;
ucp_address_t *my_addr = NULL;
size_t my_addr_len;
char *recv_buf = NULL;
void *rkey_buffer = NULL, *state_rkey_buffer = NULL;
size_t rkey_buffer_size, state_rkey_buffer_size;
void *state_base = NULL;
void * my_info = NULL;
size_t my_info_len;
int disps[comm_size];
int rkey_sizes[comm_size];
/* the osc/sm component is the exclusive provider for support for
* shared memory windows */
if (flavor == MPI_WIN_FLAVOR_SHARED) {
return OMPI_ERR_NOT_SUPPORTED;
}
/* if UCP worker has never been initialized before, init it first */
if (mca_osc_ucx_component.ucp_worker == NULL) {
ucp_worker_params_t worker_params;
ucp_worker_attr_t worker_attr;
memset(&worker_params, 0, sizeof(ucp_worker_h));
worker_params.field_mask = UCP_WORKER_PARAM_FIELD_THREAD_MODE;
worker_params.thread_mode = (mca_osc_ucx_component.enable_mpi_threads == true)
? UCS_THREAD_MODE_MULTI : UCS_THREAD_MODE_SINGLE;
status = ucp_worker_create(mca_osc_ucx_component.ucp_context, &worker_params,
&(mca_osc_ucx_component.ucp_worker));
if (UCS_OK != status) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_worker_create failed: %d\n",
__FILE__, __LINE__, status);
ret = OMPI_ERROR;
goto error;
}
/* query UCP worker attributes */
worker_attr.field_mask = UCP_WORKER_ATTR_FIELD_THREAD_MODE;
status = ucp_worker_query(mca_osc_ucx_component.ucp_worker, &worker_attr);
if (UCS_OK != status) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_worker_query failed: %d\n",
__FILE__, __LINE__, status);
ret = OMPI_ERROR;
goto error;
}
if (mca_osc_ucx_component.enable_mpi_threads == true &&
worker_attr.thread_mode != UCS_THREAD_MODE_MULTI) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucx does not support multithreading\n",
__FILE__, __LINE__);
ret = OMPI_ERROR;
goto error;
}
worker_created = true;
}
/* create module structure */
module = (ompi_osc_ucx_module_t *)calloc(1, sizeof(ompi_osc_ucx_module_t));
if (module == NULL) {
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
goto error;
}
/* fill in the function pointer part */
memcpy(module, &ompi_osc_ucx_module_template, sizeof(ompi_osc_base_module_t));
ret = ompi_comm_dup(comm, &module->comm);
if (ret != OMPI_SUCCESS) {
goto error;
}
asprintf(&name, "ucx window %d", ompi_comm_get_cid(module->comm));
ompi_win_set_name(win, name);
free(name);
/* share everyone's displacement units. Only do an allgather if
strictly necessary, since it requires O(p) state. */
values[0] = disp_unit;
values[1] = -disp_unit;
ret = module->comm->c_coll->coll_allreduce(MPI_IN_PLACE, values, 2, MPI_LONG,
MPI_MIN, module->comm,
module->comm->c_coll->coll_allreduce_module);
if (OMPI_SUCCESS != ret) {
goto error;
}
if (values[0] == -values[1]) { /* everyone has the same disp_unit, we do not need O(p) space */
module->disp_unit = disp_unit;
} else { /* different disp_unit sizes, allocate O(p) space to store them */
module->disp_unit = -1;
module->disp_units = calloc(comm_size, sizeof(int));
if (module->disp_units == NULL) {
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
goto error;
}
ret = module->comm->c_coll->coll_allgather(&disp_unit, 1, MPI_INT,
module->disp_units, 1, MPI_INT,
module->comm,
module->comm->c_coll->coll_allgather_module);
if (OMPI_SUCCESS != ret) {
goto error;
}
}
/* exchange endpoints if necessary */
is_eps_ready = 1;
for (i = 0; i < comm_size; i++) {
if (OSC_UCX_GET_EP(module->comm, i) == NULL) {
is_eps_ready = 0;
break;
}
}
ret = module->comm->c_coll->coll_allreduce(MPI_IN_PLACE, &is_eps_ready, 1, MPI_INT,
MPI_LAND,
module->comm,
module->comm->c_coll->coll_allreduce_module);
if (OMPI_SUCCESS != ret) {
goto error;
}
if (!is_eps_ready) {
status = ucp_worker_get_address(mca_osc_ucx_component.ucp_worker,
&my_addr, &my_addr_len);
if (status != UCS_OK) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_worker_get_address failed: %d\n",
__FILE__, __LINE__, status);
ret = OMPI_ERROR;
goto error;
}
ret = allgather_len_and_info(my_addr, (int)my_addr_len,
&recv_buf, disps, module->comm);
if (ret != OMPI_SUCCESS) {
goto error;
}
for (i = 0; i < comm_size; i++) {
if (OSC_UCX_GET_EP(module->comm, i) == NULL) {
ucp_ep_params_t ep_params;
ucp_ep_h ep;
memset(&ep_params, 0, sizeof(ucp_ep_params_t));
ep_params.field_mask = UCP_EP_PARAM_FIELD_REMOTE_ADDRESS;
ep_params.address = (ucp_address_t *)&(recv_buf[disps[i]]);
status = ucp_ep_create(mca_osc_ucx_component.ucp_worker, &ep_params, &ep);
if (status != UCS_OK) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_ep_create failed: %d\n",
__FILE__, __LINE__, status);
ret = OMPI_ERROR;
goto error;
}
ompi_comm_peer_lookup(module->comm, i)->proc_endpoints[OMPI_PROC_ENDPOINT_TAG_UCX] = ep;
}
}
ucp_worker_release_address(mca_osc_ucx_component.ucp_worker, my_addr);
my_addr = NULL;
free(recv_buf);
recv_buf = NULL;
eps_created = true;
}
ret = mem_map(base, size, &(module->memh), module, flavor);
if (ret != OMPI_SUCCESS) {
goto error;
}
state_base = (void *)&(module->state);
ret = mem_map(&state_base, sizeof(ompi_osc_ucx_state_t), &(module->state_memh),
module, MPI_WIN_FLAVOR_CREATE);
if (ret != OMPI_SUCCESS) {
goto error;
}
module->win_info_array = calloc(comm_size, sizeof(ompi_osc_ucx_win_info_t));
if (module->win_info_array == NULL) {
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
goto error;
}
module->state_info_array = calloc(comm_size, sizeof(ompi_osc_ucx_win_info_t));
if (module->state_info_array == NULL) {
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
goto error;
}
status = ucp_rkey_pack(mca_osc_ucx_component.ucp_context, module->memh,
&rkey_buffer, &rkey_buffer_size);
if (status != UCS_OK) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_rkey_pack failed: %d\n",
__FILE__, __LINE__, status);
ret = OMPI_ERROR;
goto error;
}
status = ucp_rkey_pack(mca_osc_ucx_component.ucp_context, module->state_memh,
&state_rkey_buffer, &state_rkey_buffer_size);
if (status != UCS_OK) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_rkey_pack failed: %d\n",
__FILE__, __LINE__, status);
ret = OMPI_ERROR;
goto error;
}
my_info_len = 2 * sizeof(uint64_t) + rkey_buffer_size + state_rkey_buffer_size;
my_info = malloc(my_info_len);
if (my_info == NULL) {
ret = OMPI_ERR_TEMP_OUT_OF_RESOURCE;
goto error;
}
memcpy(my_info, base, sizeof(uint64_t));
memcpy((void *)((char *)my_info + sizeof(uint64_t)), &state_base, sizeof(uint64_t));
memcpy((void *)((char *)my_info + 2 * sizeof(uint64_t)), rkey_buffer, rkey_buffer_size);
memcpy((void *)((char *)my_info + 2 * sizeof(uint64_t) + rkey_buffer_size),
state_rkey_buffer, state_rkey_buffer_size);
ret = allgather_len_and_info(my_info, (int)my_info_len, &recv_buf, disps, module->comm);
if (ret != OMPI_SUCCESS) {
goto error;
}
ret = comm->c_coll->coll_allgather((void *)&rkey_buffer_size, 1, MPI_INT,
rkey_sizes, 1, MPI_INT, comm,
comm->c_coll->coll_allgather_module);
if (OMPI_SUCCESS != ret) {
goto error;
}
for (i = 0; i < comm_size; i++) {
ucp_ep_h ep = OSC_UCX_GET_EP(module->comm, i);
assert(ep != NULL);
memcpy(&(module->win_info_array[i]).addr, &recv_buf[disps[i]], sizeof(uint64_t));
memcpy(&(module->state_info_array[i]).addr, &recv_buf[disps[i] + sizeof(uint64_t)],
sizeof(uint64_t));
status = ucp_ep_rkey_unpack(ep, &(recv_buf[disps[i] + 2 * sizeof(uint64_t)]),
&((module->win_info_array[i]).rkey));
if (status != UCS_OK) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_ep_rkey_unpack failed: %d\n",
__FILE__, __LINE__, status);
ret = OMPI_ERROR;
goto error;
}
status = ucp_ep_rkey_unpack(ep, &(recv_buf[disps[i] + 2 * sizeof(uint64_t) + rkey_sizes[i]]),
&((module->state_info_array[i]).rkey));
if (status != UCS_OK) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_ep_rkey_unpack failed: %d\n",
__FILE__, __LINE__, status);
ret = OMPI_ERROR;
goto error;
}
}
free(my_info);
free(recv_buf);
ucp_rkey_buffer_release(rkey_buffer);
ucp_rkey_buffer_release(state_rkey_buffer);
module->state.lock = TARGET_LOCK_UNLOCKED;
module->state.post_index = 0;
memset((void *)module->state.post_state, 0, sizeof(uint64_t) * OMPI_OSC_UCX_POST_PEER_MAX);
module->state.complete_count = 0;
module->state.req_flag = 0;
module->state.acc_lock = TARGET_LOCK_UNLOCKED;
module->epoch_type.access = NONE_EPOCH;
module->epoch_type.exposure = NONE_EPOCH;
module->lock_count = 0;
module->post_count = 0;
module->start_group = NULL;
module->post_group = NULL;
OBJ_CONSTRUCT(&module->outstanding_locks, opal_hash_table_t);
OBJ_CONSTRUCT(&module->pending_posts, opal_list_t);
module->global_ops_num = 0;
module->per_target_ops_nums = calloc(comm_size, sizeof(int));
module->start_grp_ranks = NULL;
module->lock_all_is_nocheck = false;
ret = opal_hash_table_init(&module->outstanding_locks, comm_size);
if (ret != OPAL_SUCCESS) {
goto error;
}
win->w_osc_module = &module->super;
/* sync with everyone */
ret = module->comm->c_coll->coll_barrier(module->comm,
module->comm->c_coll->coll_barrier_module);
if (ret != OMPI_SUCCESS) {
goto error;
}
return ret;
error:
if (my_addr) ucp_worker_release_address(mca_osc_ucx_component.ucp_worker, my_addr);
if (recv_buf) free(recv_buf);
if (my_info) free(my_info);
for (i = 0; i < comm_size; i++) {
if ((module->win_info_array[i]).rkey != NULL) {
ucp_rkey_destroy((module->win_info_array[i]).rkey);
}
if ((module->state_info_array[i]).rkey != NULL) {
ucp_rkey_destroy((module->state_info_array[i]).rkey);
}
}
if (rkey_buffer) ucp_rkey_buffer_release(rkey_buffer);
if (state_rkey_buffer) ucp_rkey_buffer_release(state_rkey_buffer);
if (module->win_info_array) free(module->win_info_array);
if (module->state_info_array) free(module->state_info_array);
if (module->disp_units) free(module->disp_units);
if (module->comm) ompi_comm_free(&module->comm);
if (module->per_target_ops_nums) free(module->per_target_ops_nums);
if (eps_created) {
for (i = 0; i < comm_size; i++) {
ucp_ep_h ep = OSC_UCX_GET_EP(module->comm, i);
ucp_ep_destroy(ep);
}
}
if (worker_created) ucp_worker_destroy(mca_osc_ucx_component.ucp_worker);
if (module) free(module);
return ret;
}