static inline int start_shared(ompi_osc_ucx_module_t *module, int target) {
uint64_t result_value = -1;
ucp_ep_h ep = OSC_UCX_GET_EP(module->comm, target);
ucp_rkey_h rkey = (module->state_info_array)[target].rkey;
uint64_t remote_addr = (module->state_info_array)[target].addr + OSC_UCX_STATE_LOCK_OFFSET;
ucs_status_t status;
int ret;
while (true) {
ret = opal_common_ucx_atomic_fetch(ep, UCP_ATOMIC_FETCH_OP_FADD, 1,
&result_value, sizeof(result_value),
remote_addr, rkey, mca_osc_ucx_component.ucp_worker);
if (OMPI_SUCCESS != ret) {
return ret;
}
assert((int64_t)result_value >= 0);
if (result_value >= TARGET_LOCK_EXCLUSIVE) {
status = ucp_atomic_post(ep, UCP_ATOMIC_POST_OP_ADD, (-1), sizeof(uint64_t),
remote_addr, rkey);
if (status != UCS_OK) {
OSC_UCX_VERBOSE(1, "ucp_atomic_add64 failed: %d", status);
return OMPI_ERROR;
}
} else {
break;
}
}
return OMPI_SUCCESS;
}
int ompi_osc_ucx_get(void *origin_addr, int origin_count,
struct ompi_datatype_t *origin_dt,
int target, ptrdiff_t target_disp, int target_count,
struct ompi_datatype_t *target_dt, struct ompi_win_t *win) {
ompi_osc_ucx_module_t *module = (ompi_osc_ucx_module_t*) win->w_osc_module;
ucp_ep_h ep = OSC_UCX_GET_EP(module->comm, target);
uint64_t remote_addr = (module->win_info_array[target]).addr + target_disp * OSC_UCX_GET_DISP(module, target);
ucp_rkey_h rkey;
ptrdiff_t origin_lb, origin_extent, target_lb, target_extent;
bool is_origin_contig = false, is_target_contig = false;
ucs_status_t status;
int ret = OMPI_SUCCESS;
ret = check_sync_state(module, target, false);
if (ret != OMPI_SUCCESS) {
return ret;
}
if (module->flavor == MPI_WIN_FLAVOR_DYNAMIC) {
status = get_dynamic_win_info(remote_addr, module, ep, target);
if (status != UCS_OK) {
return OMPI_ERROR;
}
}
rkey = (module->win_info_array[target]).rkey;
ompi_datatype_get_true_extent(origin_dt, &origin_lb, &origin_extent);
ompi_datatype_get_true_extent(target_dt, &target_lb, &target_extent);
is_origin_contig = ompi_datatype_is_contiguous_memory_layout(origin_dt, origin_count);
is_target_contig = ompi_datatype_is_contiguous_memory_layout(target_dt, target_count);
if (is_origin_contig && is_target_contig) {
/* fast path */
size_t origin_len;
ompi_datatype_type_size(origin_dt, &origin_len);
origin_len *= origin_count;
status = ucp_get_nbi(ep, (void *)((intptr_t)origin_addr + origin_lb), origin_len,
remote_addr + target_lb, rkey);
if (status != UCS_OK && status != UCS_INPROGRESS) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_get_nbi failed: %d\n",
__FILE__, __LINE__, status);
return OMPI_ERROR;
}
return incr_and_check_ops_num(module, target, ep);
} else {
return ddt_put_get(module, origin_addr, origin_count, origin_dt, is_origin_contig,
origin_lb, target, ep, remote_addr, rkey, target_count, target_dt,
is_target_contig, target_lb, true);
}
}
static inline int end_shared(ompi_osc_ucx_module_t *module, int target) {
ucp_ep_h ep = OSC_UCX_GET_EP(module->comm, target);
ucp_rkey_h rkey = (module->state_info_array)[target].rkey;
uint64_t remote_addr = (module->state_info_array)[target].addr + OSC_UCX_STATE_LOCK_OFFSET;
ucs_status_t status;
status = ucp_atomic_post(ep, UCP_ATOMIC_POST_OP_ADD, (-1), sizeof(uint64_t),
remote_addr, rkey);
if (status != UCS_OK) {
OSC_UCX_VERBOSE(1, "ucp_atomic_post(OP_ADD) failed: %d", status);
return OMPI_ERROR;
}
return OMPI_SUCCESS;
}
int ompi_osc_ucx_compare_and_swap(const void *origin_addr, const void *compare_addr,
void *result_addr, struct ompi_datatype_t *dt,
int target, ptrdiff_t target_disp,
struct ompi_win_t *win) {
ompi_osc_ucx_module_t *module = (ompi_osc_ucx_module_t *)win->w_osc_module;
ucp_ep_h ep = OSC_UCX_GET_EP(module->comm, target);
uint64_t remote_addr = (module->win_info_array[target]).addr + target_disp * OSC_UCX_GET_DISP(module, target);
ucp_rkey_h rkey;
size_t dt_bytes;
ompi_osc_ucx_internal_request_t *req = NULL;
int ret = OMPI_SUCCESS;
ucs_status_t status;
ret = check_sync_state(module, target, false);
if (ret != OMPI_SUCCESS) {
return ret;
}
ret = start_atomicity(module, ep, target);
if (ret != OMPI_SUCCESS) {
return ret;
}
if (module->flavor == MPI_WIN_FLAVOR_DYNAMIC) {
status = get_dynamic_win_info(remote_addr, module, ep, target);
if (status != UCS_OK) {
return OMPI_ERROR;
}
}
rkey = (module->win_info_array[target]).rkey;
ompi_datatype_type_size(dt, &dt_bytes);
memcpy(result_addr, origin_addr, dt_bytes);
req = ucp_atomic_fetch_nb(ep, UCP_ATOMIC_FETCH_OP_CSWAP, *(uint64_t *)compare_addr,
result_addr, dt_bytes, remote_addr, rkey, req_completion);
if (UCS_PTR_IS_PTR(req)) {
ucp_request_release(req);
}
ret = incr_and_check_ops_num(module, target, ep);
if (ret != OMPI_SUCCESS) {
return ret;
}
return end_atomicity(module, ep, target);
}
int ompi_osc_ucx_unlock(int target, struct ompi_win_t *win) {
ompi_osc_ucx_module_t *module = (ompi_osc_ucx_module_t *)win->w_osc_module;
ompi_osc_ucx_lock_t *lock = NULL;
int ret = OMPI_SUCCESS;
ucp_ep_h ep;
if (module->epoch_type.access != PASSIVE_EPOCH) {
return OMPI_ERR_RMA_SYNC;
}
opal_hash_table_get_value_uint32(&module->outstanding_locks, (uint32_t) target, (void **) &lock);
if (lock == NULL) {
return OMPI_ERR_RMA_SYNC;
}
opal_hash_table_remove_value_uint32(&module->outstanding_locks,
(uint32_t)target);
ep = OSC_UCX_GET_EP(module->comm, target);
ret = opal_common_ucx_ep_flush(ep, mca_osc_ucx_component.ucp_worker);
if (ret != OMPI_SUCCESS) {
return ret;
}
module->global_ops_num -= module->per_target_ops_nums[target];
module->per_target_ops_nums[target] = 0;
if (lock->is_nocheck == false) {
if (lock->type == LOCK_EXCLUSIVE) {
ret = end_exclusive(module, target);
} else {
ret = end_shared(module, target);
}
}
OBJ_RELEASE(lock);
module->lock_count--;
assert(module->lock_count >= 0);
if (module->lock_count == 0) {
module->epoch_type.access = NONE_EPOCH;
assert(module->global_ops_num == 0);
}
return ret;
}
static inline int end_exclusive(ompi_osc_ucx_module_t *module, int target) {
uint64_t result_value = 0;
ucp_ep_h ep = OSC_UCX_GET_EP(module->comm, target);
ucp_rkey_h rkey = (module->state_info_array)[target].rkey;
uint64_t remote_addr = (module->state_info_array)[target].addr + OSC_UCX_STATE_LOCK_OFFSET;
int ret;
ret = opal_common_ucx_atomic_fetch(ep, UCP_ATOMIC_FETCH_OP_SWAP, TARGET_LOCK_UNLOCKED,
&result_value, sizeof(result_value),
remote_addr, rkey, mca_osc_ucx_component.ucp_worker);
if (OMPI_SUCCESS != ret) {
return ret;
}
assert(result_value >= TARGET_LOCK_EXCLUSIVE);
return OMPI_SUCCESS;
}
static inline int start_exclusive(ompi_osc_ucx_module_t *module, int target) {
uint64_t result_value = -1;
ucp_ep_h ep = OSC_UCX_GET_EP(module->comm, target);
ucp_rkey_h rkey = (module->state_info_array)[target].rkey;
uint64_t remote_addr = (module->state_info_array)[target].addr + OSC_UCX_STATE_LOCK_OFFSET;
ucs_status_t status;
while (result_value != TARGET_LOCK_UNLOCKED) {
status = opal_common_ucx_atomic_cswap(ep, TARGET_LOCK_UNLOCKED, TARGET_LOCK_EXCLUSIVE,
&result_value, sizeof(result_value),
remote_addr, rkey,
mca_osc_ucx_component.ucp_worker);
if (status != UCS_OK) {
return OMPI_ERROR;
}
}
return OMPI_SUCCESS;
}
static int component_finalize(void) {
int i;
for (i = 0; i < ompi_proc_world_size(); i++) {
ucp_ep_h ep = OSC_UCX_GET_EP(&(ompi_mpi_comm_world.comm), i);
if (ep != NULL) {
ucp_ep_destroy(ep);
}
}
if (mca_osc_ucx_component.ucp_worker != NULL) {
ucp_worker_destroy(mca_osc_ucx_component.ucp_worker);
}
assert(mca_osc_ucx_component.num_incomplete_req_ops == 0);
OBJ_DESTRUCT(&mca_osc_ucx_component.requests);
opal_progress_unregister(progress_callback);
ucp_cleanup(mca_osc_ucx_component.ucp_context);
return OMPI_SUCCESS;
}
int ompi_osc_ucx_flush(int target, struct ompi_win_t *win) {
ompi_osc_ucx_module_t *module = (ompi_osc_ucx_module_t*) win->w_osc_module;
ucp_ep_h ep;
int ret;
if (module->epoch_type.access != PASSIVE_EPOCH &&
module->epoch_type.access != PASSIVE_ALL_EPOCH) {
return OMPI_ERR_RMA_SYNC;
}
ep = OSC_UCX_GET_EP(module->comm, target);
ret = opal_common_ucx_ep_flush(ep, mca_osc_ucx_component.ucp_worker);
if (ret != OMPI_SUCCESS) {
return ret;
}
module->global_ops_num -= module->per_target_ops_nums[target];
module->per_target_ops_nums[target] = 0;
return OMPI_SUCCESS;
}
int ompi_osc_ucx_rget(void *origin_addr, int origin_count,
struct ompi_datatype_t *origin_dt,
int target, ptrdiff_t target_disp, int target_count,
struct ompi_datatype_t *target_dt, struct ompi_win_t *win,
struct ompi_request_t **request) {
ompi_osc_ucx_module_t *module = (ompi_osc_ucx_module_t*) win->w_osc_module;
ucp_ep_h ep = OSC_UCX_GET_EP(module->comm, target);
uint64_t remote_addr = (module->state_info_array[target]).addr + OSC_UCX_STATE_REQ_FLAG_OFFSET;
ucp_rkey_h rkey;
ompi_osc_ucx_request_t *ucx_req = NULL;
ompi_osc_ucx_internal_request_t *internal_req = NULL;
ucs_status_t status;
int ret = OMPI_SUCCESS;
ret = check_sync_state(module, target, true);
if (ret != OMPI_SUCCESS) {
return ret;
}
if (module->flavor == MPI_WIN_FLAVOR_DYNAMIC) {
status = get_dynamic_win_info(remote_addr, module, ep, target);
if (status != UCS_OK) {
return OMPI_ERROR;
}
}
rkey = (module->win_info_array[target]).rkey;
OMPI_OSC_UCX_REQUEST_ALLOC(win, ucx_req);
if (NULL == ucx_req) {
return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
}
ret = ompi_osc_ucx_get(origin_addr, origin_count, origin_dt, target, target_disp,
target_count, target_dt, win);
if (ret != OMPI_SUCCESS) {
return ret;
}
status = ucp_worker_fence(mca_osc_ucx_component.ucp_worker);
if (status != UCS_OK) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_worker_fence failed: %d\n",
__FILE__, __LINE__, status);
return OMPI_ERROR;
}
internal_req = ucp_atomic_fetch_nb(ep, UCP_ATOMIC_FETCH_OP_FADD, 0,
&(module->req_result), sizeof(uint64_t),
remote_addr, rkey, req_completion);
if (UCS_PTR_IS_PTR(internal_req)) {
internal_req->external_req = ucx_req;
mca_osc_ucx_component.num_incomplete_req_ops++;
} else {
ompi_request_complete(&ucx_req->super, true);
}
*request = &ucx_req->super;
return incr_and_check_ops_num(module, target, ep);
}
int ompi_osc_ucx_get_accumulate(const void *origin_addr, int origin_count,
struct ompi_datatype_t *origin_dt,
void *result_addr, int result_count,
struct ompi_datatype_t *result_dt,
int target, ptrdiff_t target_disp,
int target_count, struct ompi_datatype_t *target_dt,
struct ompi_op_t *op, struct ompi_win_t *win) {
ompi_osc_ucx_module_t *module = (ompi_osc_ucx_module_t*) win->w_osc_module;
ucp_ep_h ep = OSC_UCX_GET_EP(module->comm, target);
int ret = OMPI_SUCCESS;
ret = check_sync_state(module, target, false);
if (ret != OMPI_SUCCESS) {
return ret;
}
ret = start_atomicity(module, ep, target);
if (ret != OMPI_SUCCESS) {
return ret;
}
ret = ompi_osc_ucx_get(result_addr, result_count, result_dt, target,
target_disp, target_count, target_dt, win);
if (ret != OMPI_SUCCESS) {
return ret;
}
if (op != &ompi_mpi_op_no_op.op) {
if (op == &ompi_mpi_op_replace.op) {
ret = ompi_osc_ucx_put(origin_addr, origin_count, origin_dt,
target, target_disp, target_count,
target_dt, win);
if (ret != OMPI_SUCCESS) {
return ret;
}
} else {
void *temp_addr = NULL;
uint32_t temp_count;
ompi_datatype_t *temp_dt;
ptrdiff_t temp_lb, temp_extent;
ucs_status_t status;
bool is_origin_contig = ompi_datatype_is_contiguous_memory_layout(origin_dt, origin_count);
if (ompi_datatype_is_predefined(target_dt)) {
temp_dt = target_dt;
temp_count = target_count;
} else {
ret = ompi_osc_base_get_primitive_type_info(target_dt, &temp_dt, &temp_count);
if (ret != OMPI_SUCCESS) {
return ret;
}
}
ompi_datatype_get_true_extent(temp_dt, &temp_lb, &temp_extent);
temp_addr = malloc(temp_extent * temp_count);
if (temp_addr == NULL) {
return OMPI_ERR_TEMP_OUT_OF_RESOURCE;
}
ret = ompi_osc_ucx_get(temp_addr, (int)temp_count, temp_dt,
target, target_disp, target_count, target_dt, win);
if (ret != OMPI_SUCCESS) {
return ret;
}
status = ucp_ep_flush(ep);
if (status != UCS_OK) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_ep_flush failed: %d\n",
__FILE__, __LINE__, status);
return OMPI_ERROR;
}
if (ompi_datatype_is_predefined(origin_dt) || is_origin_contig) {
ompi_op_reduce(op, (void *)origin_addr, temp_addr, (int)temp_count, temp_dt);
} else {
ucx_iovec_t *origin_ucx_iov = NULL;
uint32_t origin_ucx_iov_count = 0;
uint32_t origin_ucx_iov_idx = 0;
ret = create_iov_list(origin_addr, origin_count, origin_dt,
&origin_ucx_iov, &origin_ucx_iov_count);
if (ret != OMPI_SUCCESS) {
return ret;
}
if ((op != &ompi_mpi_op_maxloc.op && op != &ompi_mpi_op_minloc.op) ||
ompi_datatype_is_contiguous_memory_layout(temp_dt, temp_count)) {
size_t temp_size;
ompi_datatype_type_size(temp_dt, &temp_size);
while (origin_ucx_iov_idx < origin_ucx_iov_count) {
int curr_count = origin_ucx_iov[origin_ucx_iov_idx].len / temp_size;
ompi_op_reduce(op, origin_ucx_iov[origin_ucx_iov_idx].addr,
temp_addr, curr_count, temp_dt);
temp_addr = (void *)((char *)temp_addr + curr_count * temp_size);
origin_ucx_iov_idx++;
}
} else {
int i;
void *curr_origin_addr = origin_ucx_iov[origin_ucx_iov_idx].addr;
for (i = 0; i < (int)temp_count; i++) {
ompi_op_reduce(op, curr_origin_addr,
(void *)((char *)temp_addr + i * temp_extent),
1, temp_dt);
curr_origin_addr = (void *)((char *)curr_origin_addr + temp_extent);
origin_ucx_iov_idx++;
if (curr_origin_addr >= (void *)((char *)origin_ucx_iov[origin_ucx_iov_idx].addr + origin_ucx_iov[origin_ucx_iov_idx].len)) {
origin_ucx_iov_idx++;
curr_origin_addr = origin_ucx_iov[origin_ucx_iov_idx].addr;
}
}
}
free(origin_ucx_iov);
}
ret = ompi_osc_ucx_put(temp_addr, (int)temp_count, temp_dt, target, target_disp,
target_count, target_dt, win);
if (ret != OMPI_SUCCESS) {
return ret;
}
status = ucp_ep_flush(ep);
if (status != UCS_OK) {
opal_output_verbose(1, ompi_osc_base_framework.framework_output,
"%s:%d: ucp_ep_flush failed: %d\n",
__FILE__, __LINE__, status);
return OMPI_ERROR;
}
free(temp_addr);
}
}
ret = end_atomicity(module, ep, target);
return ret;
}
int ompi_osc_ucx_fetch_and_op(const void *origin_addr, void *result_addr,
struct ompi_datatype_t *dt, int target,
ptrdiff_t target_disp, struct ompi_op_t *op,
struct ompi_win_t *win) {
ompi_osc_ucx_module_t *module = (ompi_osc_ucx_module_t*) win->w_osc_module;
int ret = OMPI_SUCCESS;
ret = check_sync_state(module, target, false);
if (ret != OMPI_SUCCESS) {
return ret;
}
if (op == &ompi_mpi_op_no_op.op || op == &ompi_mpi_op_replace.op ||
op == &ompi_mpi_op_sum.op) {
ucp_ep_h ep = OSC_UCX_GET_EP(module->comm, target);
uint64_t remote_addr = (module->win_info_array[target]).addr + target_disp * OSC_UCX_GET_DISP(module, target);
ucp_rkey_h rkey;
uint64_t value = *(uint64_t *)origin_addr;
ucp_atomic_fetch_op_t opcode;
size_t dt_bytes;
ompi_osc_ucx_internal_request_t *req = NULL;
ucs_status_t status;
ret = start_atomicity(module, ep, target);
if (ret != OMPI_SUCCESS) {
return ret;
}
if (module->flavor == MPI_WIN_FLAVOR_DYNAMIC) {
status = get_dynamic_win_info(remote_addr, module, ep, target);
if (status != UCS_OK) {
return OMPI_ERROR;
}
}
rkey = (module->win_info_array[target]).rkey;
ompi_datatype_type_size(dt, &dt_bytes);
if (op == &ompi_mpi_op_replace.op) {
opcode = UCP_ATOMIC_FETCH_OP_SWAP;
} else {
opcode = UCP_ATOMIC_FETCH_OP_FADD;
if (op == &ompi_mpi_op_no_op.op) {
value = 0;
}
}
req = ucp_atomic_fetch_nb(ep, opcode, value, result_addr,
dt_bytes, remote_addr, rkey, req_completion);
if (UCS_PTR_IS_PTR(req)) {
ucp_request_release(req);
}
ret = incr_and_check_ops_num(module, target, ep);
if (ret != OMPI_SUCCESS) {
return ret;
}
return end_atomicity(module, ep, target);
} else {
return ompi_osc_ucx_get_accumulate(origin_addr, 1, dt, result_addr, 1, dt,
target, target_disp, 1, dt, op, win);
}
}
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;
}