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brpc_ps_server.cc
846 lines (755 loc) · 30.6 KB
/
brpc_ps_server.cc
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// Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "paddle/fluid/distributed/ps/service/brpc_ps_server.h"
#include <thread> // NOLINT
#include "butil/object_pool.h"
#include "paddle/fluid/distributed/common/cost_timer.h"
#include "paddle/fluid/distributed/ps/table/depends/sparse_utils.h"
#include "paddle/fluid/distributed/ps/table/table.h"
#include "paddle/fluid/framework/archive.h"
#include "paddle/fluid/platform/profiler.h"
namespace google {
namespace protobuf {
class Closure;
class RpcController;
} // namespace protobuf
} // namespace google
DEFINE_int32(pserver_timeout_ms_s2s, 10000,
"pserver request server timeout_ms");
DEFINE_int32(pserver_connect_timeout_ms_s2s, 10000,
"pserver connect server timeout_ms");
DEFINE_string(pserver_connection_type_s2s, "pooled",
"pserver connection_type[pooled:single]");
namespace paddle {
namespace distributed {
int32_t BrpcPsServer::Initialize() {
auto &service_config = _config.downpour_server_param().service_param();
if (!service_config.has_service_class()) {
LOG(ERROR) << "miss service_class in ServerServiceParameter";
return -1;
}
auto *service =
CREATE_PSCORE_CLASS(PsBaseService, service_config.service_class());
if (service == NULL) {
LOG(ERROR) << "service is unregistered, service_name:"
<< service_config.service_class();
return -1;
}
_service.reset(service);
if (service->Configure(this) != 0 || service->Initialize() != 0) {
LOG(ERROR) << "service initialize failed, service_name:"
<< service_config.service_class();
return -1;
}
if (_server.AddService(service, brpc::SERVER_DOESNT_OWN_SERVICE) != 0) {
LOG(ERROR) << "service add to brpc failed, service:"
<< service_config.service_class();
return -1;
}
return 0;
}
uint64_t BrpcPsServer::Start(const std::string &ip, uint32_t port) {
std::unique_lock<std::mutex> lock(mutex_);
std::string ip_port = ip + ":" + std::to_string(port);
VLOG(0) << "running server with rank id: " << _rank
<< ", endpoint: " << ip_port;
brpc::ServerOptions options;
int num_threads = std::thread::hardware_concurrency();
auto trainers = _environment->GetTrainers();
options.num_threads = trainers > num_threads ? trainers : num_threads;
if (_server.Start(ip_port.c_str(), &options) != 0) {
VLOG(0) << "BrpcPsServer start failed, ip_port= " << ip_port
<< " , Try Again.";
std::string int_ip_port = GetIntTypeEndpoint(ip, port);
if (_server.Start(int_ip_port.c_str(), &options) != 0) {
LOG(ERROR) << "BrpcPsServer start failed, ip_port= " << int_ip_port;
return 0;
}
}
_environment->RegistePsServer(ip, port, _rank);
cv_.wait(lock, [&] { return stoped_; });
PSHost host;
host.ip = ip;
host.port = port;
host.rank = _rank;
return host.rank;
}
int32_t BrpcPsServer::StartS2S() {
brpc::ChannelOptions options;
options.protocol = "baidu_std";
options.timeout_ms = FLAGS_pserver_timeout_ms_s2s;
options.connection_type = FLAGS_pserver_connection_type_s2s;
options.connect_timeout_ms = FLAGS_pserver_connect_timeout_ms_s2s;
options.max_retry = 3;
std::vector<PSHost> pserver_list = _environment->GetPsServers();
_pserver_channels.resize(pserver_list.size());
VLOG(2) << "pserver start s2s server_list size: " << _pserver_channels.size();
std::ostringstream os;
std::string server_ip_port;
for (size_t i = 0; i < pserver_list.size(); ++i) {
server_ip_port.assign(pserver_list[i].ip.c_str());
server_ip_port.append(":");
server_ip_port.append(std::to_string(pserver_list[i].port));
_pserver_channels[i].reset(new brpc::Channel());
if (_pserver_channels[i]->Init(server_ip_port.c_str(), "", &options) != 0) {
LOG(ERROR) << "pserver connect to pserver:" << server_ip_port
<< " Failed!";
}
os << server_ip_port << ",";
}
LOG(INFO) << "pserver connect success: " << os.str();
return 0;
}
std::future<int32_t> BrpcPsServer::SendPServer2PServerMsg(
int msg_type, int to_pserver_id, const std::string &msg) {
auto promise = std::make_shared<std::promise<int32_t>>();
std::future<int> fut = promise->get_future();
if (to_pserver_id >= _pserver_channels.size()) {
LOG(FATAL) << "to_pserver_id is out of range pservers, which size is "
<< _pserver_channels.size();
promise->set_value(-1);
return fut;
}
auto *closure = new DownpourPServerBrpcClosure(1, [msg_type](void *done) {
auto *closure = (DownpourPServerBrpcClosure *)done;
int32_t ret = closure->check_response(0, msg_type + 1000);
closure->set_promise_value(ret);
});
closure->add_promise(promise);
closure->request(0)->set_cmd_id(101);
closure->request(0)->set_client_id(_rank);
closure->request(0)->set_table_id(0);
closure->request(0)->set_data(msg);
PsService_Stub rpc_stub(_pserver_channels[to_pserver_id].get());
rpc_stub.service(closure->cntl(0), closure->request(0), closure->response(0),
closure);
return fut;
}
int32_t BrpcPsServer::ReceiveFromPServer(int msg_type, int pserver_id,
const std::string &msg) {
if (msg.length() == 0) {
LOG(WARNING) << "SERVER>>RESPONSE>>msg = 0 Finish S2S Response";
return 0;
}
paddle::framework::BinaryArchive ar;
ar.SetReadBuffer(const_cast<char *>(msg.c_str()), msg.length(), nullptr);
if (ar.Cursor() == ar.Finish()) {
LOG(WARNING) << "SERVER>>RESPONSE ar = 0>> Finish S2S Response";
return 0;
}
std::vector<std::pair<uint64_t, std::string>> data;
while (ar.Cursor() < ar.Finish()) {
data.push_back(ar.Get<std::pair<uint64_t, std::string>>());
}
CHECK(ar.Cursor() == ar.Finish());
this->_shuffled_ins->Write(std::move(data));
return 0;
}
int32_t BrpcPsServer::Port() { return _server.listen_address().port; }
int32_t BrpcPsService::Initialize() {
_is_initialize_shard_info = false;
_service_handler_map[PS_STOP_SERVER] = &BrpcPsService::StopServer;
_service_handler_map[PS_PULL_DENSE_TABLE] = &BrpcPsService::PullDense;
_service_handler_map[PS_PUSH_DENSE_TABLE] = &BrpcPsService::PushDense;
_service_handler_map[PS_PULL_SPARSE_TABLE] = &BrpcPsService::PullSparse;
_service_handler_map[PS_PUSH_SPARSE_TABLE] = &BrpcPsService::PushSparse;
_service_handler_map[PS_SAVE_ONE_TABLE] = &BrpcPsService::SaveOneTable;
_service_handler_map[PS_SAVE_ALL_TABLE] = &BrpcPsService::SaveAllTable;
_service_handler_map[PS_SHRINK_TABLE] = &BrpcPsService::ShrinkTable;
_service_handler_map[PS_LOAD_ONE_TABLE] = &BrpcPsService::LoadOneTable;
_service_handler_map[PS_LOAD_ALL_TABLE] = &BrpcPsService::LoadAllTable;
_service_handler_map[PS_CLEAR_ONE_TABLE] = &BrpcPsService::ClearOneTable;
_service_handler_map[PS_CLEAR_ALL_TABLE] = &BrpcPsService::ClearAllTable;
_service_handler_map[PS_PUSH_DENSE_PARAM] = &BrpcPsService::PushDenseParam;
_service_handler_map[PS_PRINT_TABLE_STAT] = &BrpcPsService::PrintTableStat;
_service_handler_map[PS_PULL_GEO_PARAM] = &BrpcPsService::PullGeoParam;
_service_handler_map[PS_PUSH_SPARSE_PARAM] = &BrpcPsService::PushSparseParam;
_service_handler_map[PS_BARRIER] = &BrpcPsService::Barrier;
_service_handler_map[PS_START_PROFILER] = &BrpcPsService::StartProfiler;
_service_handler_map[PS_STOP_PROFILER] = &BrpcPsService::StopProfiler;
_service_handler_map[PS_PUSH_GLOBAL_STEP] = &BrpcPsService::PushGlobalStep;
// for save cache
_service_handler_map[PS_SAVE_ONE_CACHE_TABLE] =
&BrpcPsService::SaveCacheTable;
_service_handler_map[PS_GET_CACHE_THRESHOLD] =
&BrpcPsService::GetCacheThreshold;
_service_handler_map[PS_CACHE_SHUFFLE] = &BrpcPsService::CacheShuffle;
auto &profiler = CostProfiler::instance();
profiler.register_profiler("pserver_server_pull_dense");
profiler.register_profiler("pserver_server_push_dense");
profiler.register_profiler("pserver_server_pull_sparse");
profiler.register_profiler("pserver_server_push_sparse");
// shard初始化,server启动后才可从env获取到server_list的shard信息
InitializeShardInfo();
return 0;
}
#define CHECK_TABLE_EXIST(table, request, response) \
if (table == NULL) { \
std::string err_msg("table not found with table_id:"); \
err_msg.append(std::to_string(request.table_id())); \
set_response_code(response, -1, err_msg.c_str()); \
return -1; \
}
int32_t BrpcPsService::InitializeShardInfo() {
if (!_is_initialize_shard_info) {
std::lock_guard<std::mutex> guard(_initialize_shard_mutex);
if (_is_initialize_shard_info) {
return 0;
}
size_t shard_num = _server->Environment()->GetPsServers().size();
auto &table_map = *(_server->GetTable());
for (auto itr : table_map) {
itr.second->SetShard(_rank, shard_num);
}
_is_initialize_shard_info = true;
}
return 0;
}
void BrpcPsService::service(google::protobuf::RpcController *cntl_base,
const PsRequestMessage *request,
PsResponseMessage *response,
google::protobuf::Closure *done) {
brpc::ClosureGuard done_guard(done);
std::string log_label("ReceiveCmd-");
if (!request->has_table_id()) {
set_response_code(*response, -1, "PsRequestMessage.tabel_id is required");
return;
}
response->set_err_code(0);
response->set_err_msg("");
auto *table = _server->GetTable(request->table_id());
brpc::Controller *cntl = static_cast<brpc::Controller *>(cntl_base);
if (request->cmd_id() < 100) {
auto itr = _service_handler_map.find(request->cmd_id());
if (itr == _service_handler_map.end()) {
std::string err_msg(
"undefined cmd_id, should match PsCmdID in ps.proto, cmd_id:");
err_msg.append(std::to_string(request->cmd_id()));
set_response_code(*response, -1, err_msg.c_str());
return;
}
serviceHandlerFunc handler_func = itr->second;
int service_ret = (this->*handler_func)(table, *request, *response, cntl);
if (service_ret != 0) {
response->set_err_code(service_ret);
response->set_err_msg("server internal error");
}
} else {
int service_ret = _server->HandlePServer2PServerMsg(
request->cmd_id(), request->client_id(), request->data());
if (service_ret != 0) {
response->set_err_code(-1);
response->set_err_msg("handle_pserver2pserver_msg failed");
}
}
}
int32_t BrpcPsService::PullDense(Table *table, const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
platform::RecordEvent record_event(
"PsService->PullDense", platform::TracerEventType::Communication, 1);
CHECK_TABLE_EXIST(table, request, response)
if (request.params_size() < 1) {
set_response_code(
response, -1,
"PsRequestMessage.datas is requeired at least 1 for num of dense");
return 0;
}
CostTimer timer("pserver_server_pull_dense");
uint32_t num = *(const uint32_t *)request.params(0).c_str();
auto res_data = butil::get_object<std::vector<float>>();
res_data->resize(num * table->ValueAccesor()->GetAccessorInfo().select_size /
sizeof(float));
TableContext table_context;
table_context.value_type = Dense;
table_context.pull_context.values = res_data->data();
table_context.num = num;
table->Pull(table_context);
// table->PullDense(res_data->data(), num);
cntl->response_attachment().append((char *)(res_data->data()),
res_data->size() * sizeof(float));
butil::return_object(res_data);
return 0;
}
int32_t BrpcPsService::PushDenseParam(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
platform::RecordEvent record_event(
"PsService->PushDenseParam", platform::TracerEventType::Communication, 1);
CHECK_TABLE_EXIST(table, request, response)
thread_local std::string push_buffer;
auto &req_io_buffer = cntl->request_attachment();
auto req_buffer_size = req_io_buffer.size();
if (req_buffer_size < 1) {
set_response_code(response, -1, "req attachment is empty");
return 0;
}
push_buffer.resize(0);
push_buffer.reserve(req_buffer_size);
const char *data = (const char *)cntl->request_attachment().fetch(
const_cast<char *>(push_buffer.data()), req_buffer_size);
uint32_t num = *(const uint32_t *)data;
const float *values = (const float *)(data + sizeof(uint32_t));
TableContext table_context;
table_context.value_type = Dense;
table_context.push_context.values = values;
table_context.push_context.is_param = true;
table_context.num = num;
// if (table->PushDenseParam(values, num) != 0) {
if (table->Push(table_context) != 0) {
set_response_code(response, -1, "PushDenseParam failed");
}
return 0;
}
int32_t BrpcPsService::PushDense(Table *table, const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
platform::RecordEvent record_event(
"PsService->PushDense", platform::TracerEventType::Communication, 1);
CHECK_TABLE_EXIST(table, request, response)
auto req_buffer_size = request.data().size();
if (req_buffer_size < 1) {
// set_response_code(response, 0, "push dense data is empty");
return 0;
}
CostTimer timer("pserver_server_push_dense");
/*
Push Content:
|--num--|---valuesData---|
|--4B---|----------------|
*/
uint32_t num = *(const uint32_t *)(request.data().data());
TableContext table_context;
table_context.value_type = Dense;
table_context.push_context.values =
(const float *)(request.data().data() + sizeof(uint32_t));
table_context.num = num;
// const float *values = (const float *)(request.data().data() +
// sizeof(uint32_t));
if (table->Push(table_context) != 0) {
// if (table->PushDense(values, num) != 0) {
set_response_code(response, -1, "PushDense failed");
}
return 0;
}
int32_t BrpcPsService::Barrier(Table *table, const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
CHECK_TABLE_EXIST(table, request, response)
if (request.params_size() < 1) {
set_response_code(response, -1,
"PsRequestMessage.params is requeired at "
"least 1 for num of sparse_key");
return 0;
}
auto trainer_id = request.client_id();
auto barrier_type = request.params(0);
table->Barrier(trainer_id, barrier_type);
return 0;
}
int32_t BrpcPsService::PushSparseParam(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
platform::RecordEvent record_event("PsService->PushSparseParam",
platform::TracerEventType::Communication,
1);
CHECK_TABLE_EXIST(table, request, response)
auto &push_data = request.data();
if (push_data.size() < 1) {
// set_response_code(response, 0, "push sparse data is empty");
return 0;
}
if (request.params_size() < 1) {
set_response_code(response, -1,
"PsRequestMessage.params is requeired at "
"least 1 for num of sparse_key");
return 0;
}
uint32_t num = *(uint32_t *)(request.params(0).c_str());
/*
Push Content:
|---keysData---|---valuesData---|
|---8*{num}B---|----------------|
*/
const uint64_t *keys = (const uint64_t *)push_data.data();
const float *values =
(const float *)(push_data.data() + sizeof(uint64_t) * num);
TableContext table_context;
table_context.value_type = Sparse;
table_context.push_context.keys = keys;
table_context.push_context.values = values;
table_context.push_context.is_param = true;
table_context.num = num;
// if (table->PushSparseParam(keys, values, num) != 0) {
if (table->Push(table_context) != 0) {
set_response_code(response, -1, "PushSparseParam error");
}
return 0;
}
int32_t BrpcPsService::PullGeoParam(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
platform::RecordEvent record_event(
"PsService->pull_geo_param", platform::TracerEventType::Communication, 1);
CHECK_TABLE_EXIST(table, request, response)
thread_local std::string push_sparse_request_buffer;
auto trainer_id = request.client_id();
std::vector<float> values;
std::vector<uint64_t> ids;
TableContext table_context;
table_context.value_type = Sparse;
table_context.pull_context.geo_pull_keys = &ids;
table_context.pull_context.geo_pull_values = &values;
table_context.trainer_id = trainer_id;
table->Pull(table_context);
// table->PullGeoParam(trainer_id, &values, &ids);
uint32_t num = ids.size();
cntl->response_attachment().append((char *)(&num), sizeof(uint32_t));
cntl->response_attachment().append((char *)ids.data(),
ids.size() * sizeof(uint64_t));
cntl->response_attachment().append((char *)values.data(),
values.size() * sizeof(float));
return 0;
}
int32_t BrpcPsService::PullSparse(Table *table, const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
platform::RecordEvent record_event(
"PsService->PullSparse", platform::TracerEventType::Communication, 1);
CHECK_TABLE_EXIST(table, request, response)
auto &req_io_buffer = cntl->request_attachment();
auto req_buffer_size = req_io_buffer.size();
if (req_buffer_size < 1) {
set_response_code(response, -1, "req attachment is empty");
return 0;
}
if (request.params_size() < 1) {
set_response_code(response, -1,
"PsRequestMessage.params is requeired at "
"least 1 for num of sparse_key");
return 0;
}
CostTimer timer("pserver_server_pull_sparse");
uint32_t num = *(uint32_t *)(request.params(0).c_str());
auto dim = table->ValueAccesor()->GetAccessorInfo().select_dim;
thread_local std::string req_buffer;
req_buffer.reserve(req_buffer_size);
const void *data = cntl->request_attachment().fetch(
const_cast<char *>(req_buffer.data()), req_buffer_size);
auto value = PullSparseValue(num, dim);
value.DeserializeFromBytes(const_cast<void *>(data));
auto res_data = butil::get_object<std::vector<float>>();
res_data->resize(num * dim);
TableContext table_context;
table_context.value_type = Sparse;
table_context.pull_context.pull_value = value;
table_context.pull_context.values = res_data->data();
table->Pull(table_context);
// table->PullSparse(res_data->data(), value);
cntl->response_attachment().append((char *)(res_data->data()),
res_data->size() * sizeof(float));
butil::return_object(res_data);
return 0;
}
int32_t BrpcPsService::PushSparse(Table *table, const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
platform::RecordEvent record_event(
"PsService->PushSparse", platform::TracerEventType::Communication, 1);
CHECK_TABLE_EXIST(table, request, response)
auto &push_data = request.data();
if (push_data.size() < 1) {
// set_response_code(response, 0, "push sparse data is empty");
return 0;
}
if (request.params_size() < 1) {
set_response_code(response, -1,
"PsRequestMessage.params is requeired at "
"least 1 for num of sparse_key");
return 0;
}
CostTimer timer("pserver_server_push_sparse");
uint32_t num = *(uint32_t *)(request.params(0).c_str());
/*
Push Content:
|---keysData---|---valuesData---|
|---8*{num}B---|----------------|
*/
TableContext table_context;
table_context.value_type = Sparse;
table_context.push_context.keys = (const uint64_t *)push_data.data();
table_context.push_context.values =
(const float *)(push_data.data() + sizeof(uint64_t) * num);
table_context.num = num;
// const uint64_t *keys = (const uint64_t *)push_data.data();
// const float *values = (const float *)(push_data.data() + sizeof(uint64_t) *
// num);
if (table->Push(table_context) != 0) {
// if (table->PushSparse(keys, values, num) != 0) {
set_response_code(response, -1, "PushSparse error");
}
return 0;
}
int32_t BrpcPsService::PrintTableStat(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
CHECK_TABLE_EXIST(table, request, response)
std::pair<int64_t, int64_t> ret = table->PrintTableStat();
paddle::framework::BinaryArchive ar;
ar << ret.first << ret.second;
std::string table_info(ar.Buffer(), ar.Length());
response.set_data(table_info);
return 0;
}
int32_t BrpcPsService::LoadOneTable(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
CHECK_TABLE_EXIST(table, request, response)
if (request.params_size() < 2) {
set_response_code(
response, -1,
"PsRequestMessage.datas is requeired at least 2 for path & load_param");
return -1;
}
if (table->Load(request.params(0), request.params(1)) != 0) {
set_response_code(response, -1, "table load failed");
return -1;
}
return 0;
}
int32_t BrpcPsService::LoadAllTable(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
auto &table_map = *(_server->GetTable());
for (auto &itr : table_map) {
if (LoadOneTable(itr.second.get(), request, response, cntl) != 0) {
LOG(ERROR) << "load table[" << itr.first << "] failed";
return -1;
}
}
return 0;
}
int32_t BrpcPsService::SaveOneTable(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
CHECK_TABLE_EXIST(table, request, response)
if (request.params_size() < 2) {
set_response_code(
response, -1,
"PsRequestMessage.datas is requeired at least 2, path&mode");
return -1;
}
table->Flush();
int32_t feasign_size = 0;
VLOG(3) << "save table " << request.params(0) << " " << request.params(1);
feasign_size = table->Save(request.params(0), request.params(1));
if (feasign_size < 0) {
set_response_code(response, -1, "table save failed");
return -1;
}
return feasign_size;
}
int32_t BrpcPsService::SaveAllTable(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
auto &table_map = *(_server->GetTable());
int32_t all_feasign_size = 0;
int32_t feasign_size = 0;
for (auto &itr : table_map) {
feasign_size = SaveOneTable(itr.second.get(), request, response, cntl);
if (feasign_size < 0) {
LOG(ERROR) << "save table[" << itr.first << "] failed";
return -1;
}
}
return 0;
}
int32_t BrpcPsService::SaveCacheTable(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
CHECK_TABLE_EXIST(table, request, response)
if (request.params_size() < 2) {
set_response_code(
response, -1,
"PsRequestMessage.datas is requeired at least 3, path&mode");
return -1;
}
table->Flush();
int32_t feasign_size = 0;
// if (_server->_shuffled_ins->size() <= 0) {
// LOG(WARNING) << "shuffled ins size <= 0";
//}
feasign_size = table->SaveCache(request.params(0), request.params(1),
_server->_shuffled_ins);
if (feasign_size < 0) {
set_response_code(response, -1, "table save failed");
return -1;
}
return feasign_size;
}
int32_t BrpcPsService::CacheShuffle(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
// start cache shuffle
CHECK_TABLE_EXIST(table, request, response)
if (request.params_size() < 3) {
set_response_code(response, -1,
"PsRequestMessage.datas is requeired at least 3, "
"path&mode&cache_threshold");
return -1;
}
table->Flush();
double cache_threshold = std::stod(request.params(2));
LOG(INFO) << "cache threshold for cache shuffle: " << cache_threshold;
// auto shuffled_ins = paddle::ps::make_channel<std::pair<uint64_t,
// std::string>>();
// shuffled_ins->set_block_size(80000);
_server->StartS2S();
std::function<std::future<int32_t>(int msg_type, int to_pserver_id,
const std::string &msg)>
send_msg_func = [this](int msg_type, int to_pserver_id,
const std::string &msg) -> std::future<int32_t> {
return this->_server->SendPServer2PServerMsg(msg_type, to_pserver_id, msg);
};
std::vector<Table *> table_ptrs;
for (size_t i = 3; i < request.params_size(); ++i) {
int table_id = std::stoi(request.params(i));
Table *table_ptr = _server->GetTable(table_id);
table_ptrs.push_back(table_ptr);
}
if (table_ptrs.empty()) {
table_ptrs.push_back(table);
}
table->CacheShuffle(request.params(0), request.params(1), cache_threshold,
send_msg_func, _server->_shuffled_ins, table_ptrs);
return 0;
}
int32_t BrpcPsService::GetCacheThreshold(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
CHECK_TABLE_EXIST(table, request, response)
table->Flush();
double cache_threshold = 0.0;
cache_threshold = table->GetCacheThreshold();
if (cache_threshold < 0) {
LOG(WARNING) << "wrong threshold: " << cache_threshold;
}
std::stringstream ss;
ss << std::setprecision(15) << cache_threshold;
std::string cache_threshold_str = ss.str();
response.set_data(cache_threshold_str);
return 0;
}
int32_t BrpcPsService::ShrinkTable(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
CHECK_TABLE_EXIST(table, request, response)
if (request.params_size() < 1) {
set_response_code(
response, -1,
"PsRequestMessage.datas is requeired at least 1, threshold");
return -1;
}
table->Flush();
if (table->Shrink(request.params(0)) != 0) {
set_response_code(response, -1, "table shrink failed");
return -1;
}
VLOG(3) << "Pserver Shrink Finished";
return 0;
}
int32_t BrpcPsService::ClearOneTable(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
CHECK_TABLE_EXIST(table, request, response)
table->Flush();
table->Clear();
return 0;
}
int32_t BrpcPsService::ClearAllTable(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
auto &table_map = *(_server->GetTable());
for (auto &itr : table_map) {
if (ClearOneTable(itr.second.get(), request, response, cntl) != 0) {
return -1;
}
}
return 0;
}
int32_t BrpcPsService::StopServer(Table *table, const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
auto *p_server = _server;
std::thread t_stop([p_server]() {
p_server->Stop();
VLOG(3) << "Server Stoped";
});
t_stop.detach();
return 0;
}
int32_t BrpcPsService::StopProfiler(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
platform::DisableProfiler(platform::EventSortingKey::kDefault,
string::Sprintf("server_%s_profile", _rank));
return 0;
}
int32_t BrpcPsService::StartProfiler(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
platform::EnableProfiler(platform::ProfilerState::kCPU);
return 0;
}
int32_t BrpcPsService::PushGlobalStep(Table *table,
const PsRequestMessage &request,
PsResponseMessage &response,
brpc::Controller *cntl) {
CHECK_TABLE_EXIST(table, request, response);
auto req_buffer_size = request.data().size();
if (req_buffer_size < 1) {
set_response_code(response, 0, "run_program data is empty");
return 0;
}
uint32_t num = *(const uint32_t *)(request.data().data());
const int64_t *values =
(const int64_t *)(request.data().data() + sizeof(uint32_t));
auto trainer_id = request.client_id();
TableContext context;
context.trainer_id = trainer_id;
context.push_context.push_steps = values;
// if (table->PushDense(values, trainer_id) != 0) {
if (table->Push(context) != 0) {
set_response_code(response, -1, "run_program failed");
}
return 0;
}
} // namespace distributed
} // namespace paddle