|
- /**
- * Copyright 2020 Huawei Technologies Co., Ltd
- *
- * 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 "graph/passes/flow_ctrl_pass.h"
-
- #include <memory>
- #include <string>
- #include <vector>
-
- #include "framework/common/debug/ge_log.h"
- #include "graph/debug/ge_attr_define.h"
- #include "graph/common/omg_util.h"
- #include "common/ge/ge_util.h"
- #include "graph/manager/graph_var_manager.h"
- #include "graph/passes/pass_utils.h"
-
- namespace ge {
- // when namespace change to ge, please delete the using code.
- Status FlowCtrlPass::Run(ComputeGraphPtr compute_graph) {
- GE_CHECK_NOTNULL(compute_graph);
-
- if (!PassUtils::IsNeedTrainIteFlowCtrl(compute_graph)) {
- GELOGI("No need FlowCtrl for graph %u", compute_graph->GetGraphID());
- return NOT_CHANGED;
- }
-
- GELOGI("FlowCtrl pass begin");
- bool graph_change = false;
- // 1. Add FP/BP flow ctrl (big cycle)
- for (auto &node : compute_graph->GetDirectNode()) {
- if (node == nullptr) {
- continue;
- }
- GE_IF_BOOL_EXEC(node->GetOpDesc() == nullptr, continue);
- uint32_t true_stream_id = 0;
- bool is_found = AttrUtils::GetInt(node->GetOpDesc(), ATTR_NAME_TRUE_BRANCH_STREAM, true_stream_id);
- // FP/BP cycle flag is true_stream_id == 0
- if (is_found && (true_stream_id == TRUE_STREAM_ID)) {
- // Add big cycle
- Status ret = AddFpBpIteratorCtrl(compute_graph, node);
- if (ret != SUCCESS) {
- GELOGE(ret, "AddFpBpIteratorCtrl fail, node: %s.", node->GetName().c_str());
- return ret;
- }
- graph_change = true;
- // only one big cycle, so break.
- break;
- }
- }
-
- // 2. Add special node flow ctrl. eg, IteratorGetNext. (small cycle)
- // NOTE: Small cycle share the variables with big cycle.
- for (auto &node : compute_graph->GetDirectNode()) {
- if (node == nullptr) {
- continue;
- }
- GE_IF_BOOL_EXEC(node->GetOpDesc() == nullptr, continue);
- bool need_cycle_flag = false;
- bool is_found = AttrUtils::GetBool(node->GetOpDesc(), ATTR_NAME_STREAM_CYCLE_EVENT_FLAG, need_cycle_flag);
- // small cycle flag is need_stream_cycle_event == true
- if (is_found && need_cycle_flag) {
- Status ret = AddSpecialNodeIteratorCtrl(compute_graph, node);
- if (ret != SUCCESS) {
- GELOGE(ret, "AddSpecialNodeIteratorCtrl fail, node: %s.", node->GetName().c_str());
- return ret;
- }
- graph_change = true;
- }
- }
- GELOGI("FlowCtrl pass end, graph is %s.", graph_change ? "changed" : "not changed");
- return graph_change ? SUCCESS : NOT_CHANGED;
- }
-
- bool FlowCtrlPass::CheckMultiDataSet(ComputeGraphPtr &compute_graph) {
- int data_set_num = 0;
- for (auto &node : compute_graph->GetDirectNode()) {
- if (node == nullptr) {
- continue;
- }
- string type;
- bool is_found = AttrUtils::GetStr(node->GetOpDesc(), ATTR_NAME_FRAMEWORK_ORIGINAL_TYPE, type);
- if (is_found && type == "IteratorV2") {
- data_set_num++;
- }
- }
- GELOGI("The ComputeGraph contain %d dataSet.", data_set_num);
- return (data_set_num > 1) ? true : false;
- }
-
- NodePtr FlowCtrlPass::InsertOp(ComputeGraphPtr &compute_graph, const string &node_type, const string &node_name,
- const std::vector<GeTensorDesc> &input_list,
- const std::vector<GeTensorDesc> &output_list) {
- OpDescPtr op_desc = MakeShared<OpDesc>(node_name, node_type);
- if (op_desc == nullptr) {
- GELOGE(FAILED, "Make OpDesc failed, name:%s, type:%s.", node_name.c_str(), node_type.c_str());
- return nullptr;
- }
-
- for (auto &input_desc : input_list) {
- graphStatus graph_status = op_desc->AddInputDesc(input_desc);
- if (graph_status != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add node:%s intput desc failed, error=%u.", node_name.c_str(), graph_status);
- return nullptr;
- }
- }
-
- for (auto &output_desc : output_list) {
- graphStatus graph_status = op_desc->AddOutputDesc(output_desc);
- if (graph_status != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add node:%s output desc failed, error=%u.", node_name.c_str(), graph_status);
- return nullptr;
- }
- }
-
- GE_IF_BOOL_EXEC(compute_graph == nullptr, DOMI_LOGE("compute_graph is nullptr"); return nullptr);
- NodePtr node = compute_graph->AddNode(op_desc);
- if (node == nullptr) {
- GELOGE(FAILED, "add node failed, name:%s, type:%s.", node_name.c_str(), node_type.c_str());
- return nullptr;
- }
-
- GELOGI("Insert op success, name:%s, type:%s.", node_name.c_str(), node_type.c_str());
- return node;
- }
-
- NodePtr FlowCtrlPass::InsertStreamSwitchOp(ComputeGraphPtr &compute_graph, const string &switch_name,
- const NodePtr &loop_cond, const NodePtr &iter_per_loop) {
- GE_IF_BOOL_EXEC(loop_cond == nullptr || loop_cond->GetOpDesc() == nullptr,
- GELOGE(FAILED, "loop_cond is null"); return nullptr);
- GE_IF_BOOL_EXEC(iter_per_loop == nullptr || iter_per_loop->GetOpDesc() == nullptr,
- GELOGE(FAILED, "iter_per_loop is nullptr"); return nullptr);
- std::vector<GeTensorDesc> input_desc_list = {loop_cond->GetOpDesc()->GetOutputDesc(0),
- iter_per_loop->GetOpDesc()->GetOutputDesc(0)};
- std::vector<GeTensorDesc> output_desc_list;
- NodePtr stream_switch = InsertOp(compute_graph, STREAMSWITCH, switch_name, input_desc_list, output_desc_list);
- if (stream_switch == nullptr) {
- GELOGE(FAILED, "InsertStreamSwitchOp failed, name:%s.", switch_name.c_str());
- return nullptr;
- }
-
- // set input 0
- graphStatus add_ret = GraphUtils::AddEdge(loop_cond->GetOutDataAnchor(0), stream_switch->GetInDataAnchor(0));
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add loop_cond_node to switch_node:%s edge failed, ret = %u.", switch_name.c_str(), add_ret);
- return nullptr;
- }
-
- // set input 1
- add_ret = GraphUtils::AddEdge(iter_per_loop->GetOutDataAnchor(0), stream_switch->GetInDataAnchor(1));
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add iter_per_loop_node to switch_node:%s edge failed, ret = %u.", switch_name.c_str(), add_ret);
- return nullptr;
- }
-
- // stream switch op need switch cond by attr.
- GE_IF_BOOL_EXEC(!AttrUtils::SetInt(stream_switch->GetOpDesc(), ATTR_NAME_STREAM_SWITCH_COND,
- static_cast<int64_t>(RT_LESS)),
- DOMI_LOGE("set ATTR_NAME_STREAM_SWITCH_COND failed"); return nullptr);
-
- return stream_switch;
- }
-
- NodePtr FlowCtrlPass::AddVariableNode(ComputeGraphPtr &compute_graph, const string &name) {
- GE_IF_BOOL_EXEC(compute_graph == nullptr, DOMI_LOGE("compute_graph is nullptr"); return nullptr);
- NodePtr exist_node = compute_graph->FindNode(name);
- if (exist_node != nullptr) {
- GELOGD("Node %s already exist, no need add.", name.c_str());
- return exist_node;
- }
- // fetch and set tensor desc
- GeTensorDesc tensor_desc;
- if (ge::VarManager::Instance(compute_graph->GetSessionID()) == nullptr) {
- return nullptr;
- }
- Status ret = ge::VarManager::Instance(compute_graph->GetSessionID())->GetCurVarDesc(name, tensor_desc);
- if (ret != SUCCESS) {
- GELOGE(FAILED, "Get var desc fail, name:%s", name.c_str());
- return nullptr;
- }
- std::vector<GeTensorDesc> input_desc_list;
- std::vector<GeTensorDesc> output_desc_list = {tensor_desc};
- // insert node
- return InsertOp(compute_graph, VARIABLE, name, input_desc_list, output_desc_list);
- }
-
- Status FlowCtrlPass::AddGlobalStepVariableNode(ComputeGraphPtr &compute_graph) {
- NodePtr output_node = compute_graph->FindFirstNodeMatchType(NETOUTPUT);
- if (output_node == nullptr) {
- GELOGD("Node type %s can't be found in graph %u", NETOUTPUT, compute_graph->GetGraphID());
- return SUCCESS;
- }
- // Global step just add to main graph's netoutput node.And the main graph must be known shape
- if ((compute_graph->GetParentGraph() != nullptr) ||
- ((compute_graph->GetParentGraph() == nullptr) && (GraphUtils::IsUnknownShapeGraph(compute_graph)))) {
- GELOGD("Subgraph %s no need global step variable.", compute_graph->GetName().c_str());
- return SUCCESS;
- }
-
- NodePtr exist_node = compute_graph->FindNode(NODE_NAME_GLOBAL_STEP);
- if (exist_node != nullptr) {
- GELOGD("Node %s already exist, no need add.", NODE_NAME_GLOBAL_STEP.c_str());
- return SUCCESS;
- }
- // set global step tensor desc
- GeTensorDesc tensor_desc(GeShape({1}), FORMAT_ND, DT_UINT64);
- std::vector<GeTensorDesc> input_desc_list = {};
- std::vector<GeTensorDesc> output_desc_list = {tensor_desc};
- NodePtr global_step = InsertOp(compute_graph, VARIABLE, NODE_NAME_GLOBAL_STEP,
- input_desc_list, output_desc_list);
- if (global_step == nullptr) {
- GELOGE(FAILED, "Add global_step node failed, global_step is null.");
- return FAILED;
- }
-
- // add ctrl edges
- graphStatus add_ret = GraphUtils::AddEdge(global_step->GetOutControlAnchor(), output_node->GetInControlAnchor());
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add global_step to netoutput edge failed, add_ret=%u.", add_ret);
- return FAILED;
- }
- GELOGD("Add global_step to netoutput edge in graph %u success", compute_graph->GetGraphID());
- return SUCCESS;
- }
-
- NodePtr FlowCtrlPass::InsertAssignOp(ge::ComputeGraphPtr &compute_graph, const string &node_type,
- const string &node_name, const NodePtr &ref_node, const NodePtr &value_node) {
- GE_IF_BOOL_EXEC(ref_node == nullptr || value_node == nullptr ||
- ref_node->GetOpDesc() == nullptr || value_node->GetOpDesc() == nullptr,
- GELOGE(FAILED, "ref node or value node is null");
- return nullptr);
- GeTensorDesc ref_tensor_desc = ref_node->GetOpDesc()->GetOutputDesc(0);
- GeTensorDesc val_tensor_desc = value_node->GetOpDesc()->GetOutputDesc(0);
- std::vector<GeTensorDesc> input_desc_list = {ref_tensor_desc, val_tensor_desc};
- std::vector<GeTensorDesc> output_desc_list = {ref_tensor_desc};
- NodePtr assign_node = InsertOp(compute_graph, node_type, node_name, input_desc_list, output_desc_list);
- if (assign_node == nullptr) {
- GELOGE(FAILED, "Insert node %s(%s) failed.", node_name.c_str(), node_type.c_str());
- return nullptr;
- }
- // assign node input 0 = ref_node
- graphStatus add_ret = GraphUtils::AddEdge(ref_node->GetOutDataAnchor(0), assign_node->GetInDataAnchor(0));
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add ref_node to %s edge failed, add_ret=%u.", node_name.c_str(), add_ret);
- return nullptr;
- }
- // assign input 1 = value_node
- add_ret = GraphUtils::AddEdge(value_node->GetOutDataAnchor(0), assign_node->GetInDataAnchor(1));
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add value_node to %s edge failed, add_ret=%u.", node_name.c_str(), add_ret);
- return nullptr;
- }
- (void)ge::AttrUtils::SetBool(assign_node->GetOpDesc(), ATTR_NEED_COMPILE, true);
-
- return assign_node;
- }
-
- Status FlowCtrlPass::CreateIterCtrlTrueBranch(ComputeGraphPtr &compute_graph, const NodePtr &loop_cond_node,
- const NodePtr &loop_inc_node, NodePtr &switch_node) {
- /*
- * loopCond
- * |
- * v
- * switch --> AssignAdd --> active
- * ^
- * |
- * loopIncrement
- */
- // Insert AssignAdd node
- NodePtr assign_add_node =
- InsertAssignOp(compute_graph, ASSIGNADD, NODE_NAME_FLOWCTRL_LOOP_ASSIGNADD, loop_cond_node, loop_inc_node);
- if (assign_add_node == nullptr || switch_node == nullptr) {
- GELOGE(PARAM_INVALID, "assign add node or switch node is null");
- return FAILED;
- }
-
- string active_name = switch_node->GetName() + "_StreamActive";
- // add attr for stream assign model to break branch.
- GE_CHK_STATUS_RET(SetStreamLabel(assign_add_node, active_name), "set stream label failed");
-
- // used for stream assign to find true branch
- GE_CHK_STATUS_RET(SetActiveLabelList(switch_node, { active_name }), "set active label list failed");
-
- // 2. Insert active node
- NodePtr active_node = InsertOp(compute_graph, STREAMACTIVE, active_name, {}, {});
- if (active_node == nullptr) {
- GELOGE(FAILED, "Insert stream active node:%s for IterCtrlTrueStream failed.", active_name.c_str());
- return FAILED;
- }
- GE_CHK_STATUS_RET(SetStreamLabel(active_node, active_name), "set stream label failed");
- GE_IF_BOOL_EXEC(!AttrUtils::SetBool(active_node->GetOpDesc(), ATTR_NAME_IS_LOOP_ACTIVE, true),
- DOMI_LOGE("set ATTR_NAME_IS_LOOP_ACTIVE failed"); return FAILED);
-
- // add ctrl edges
- graphStatus add_ret = GraphUtils::AddEdge(switch_node->GetOutControlAnchor(), assign_add_node->GetInControlAnchor());
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add switch_node to assign_add_node ctrl edge failed, add_ret=%u.", add_ret);
- return FAILED;
- }
-
- add_ret = GraphUtils::AddEdge(assign_add_node->GetOutControlAnchor(), active_node->GetInControlAnchor());
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add assign_add_node to active_node ctrl edge failed, add_ret=%u.", add_ret);
- return FAILED;
- }
-
- GELOGI("CreateIterCtrlTrueBranch success. StreamActive op:%s.", active_node->GetName().c_str());
- return SUCCESS;
- }
-
- Status FlowCtrlPass::CreateIterCtrlFalseBranch(ComputeGraphPtr &compute_graph, const NodePtr &loop_cond_node,
- const NodePtr &loop_reset_node, NodePtr &switch_node) {
- /*
- * loopCond
- * |
- * v
- * switch --> Assign --> active --> ModelExit
- * ^
- * |
- * loopReset
- */
- // Insert Assign node and ctrl edge
- NodePtr assign_node =
- InsertAssignOp(compute_graph, ASSIGN, NODE_NAME_FLOWCTRL_LOOP_ASSIGN, loop_cond_node, loop_reset_node);
- if (assign_node == nullptr || switch_node == nullptr) {
- GELOGE(PARAM_INVALID, "assign_node or switch node is null");
- return FAILED;
- }
-
- GE_CHK_STATUS_RET(SetStreamLabel(assign_node, switch_node->GetName()), "set stream label failed");
-
- graphStatus add_ret = GraphUtils::AddEdge(switch_node->GetOutControlAnchor(), assign_node->GetInControlAnchor());
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add switch_node to assign_node ctrl edge failed, add_ret=%u.", add_ret);
- return FAILED;
- }
-
- if (CheckMultiDataSet(compute_graph)) {
- GELOGI("Multi dataSae exist, model_exit node is need.");
- // 2. Insert active node and add ctrl edge
- string active_name = switch_node->GetName() + "_StreamExitActive";
- NodePtr active_node = InsertOp(compute_graph, STREAMACTIVE, active_name, {}, {});
- if (active_node == nullptr) {
- GELOGE(FAILED, "Insert stream active node:%s for IterCtrlTrueStream failed.", active_name.c_str());
- return FAILED;
- }
- GE_CHK_STATUS_RET(SetStreamLabel(active_node, switch_node->GetName()), "set stream label failed");
- GE_IF_BOOL_EXEC(!AttrUtils::SetBool(active_node->GetOpDesc(), ATTR_NAME_IS_LOOP_ACTIVE, true),
- DOMI_LOGE("set ATTR_NAME_IS_LOOP_ACTIVE failed"); return FAILED);
-
- string model_exit_name = switch_node->GetName() + "_ModelExit";
- GE_CHK_STATUS_RET(SetActiveLabelList(active_node, { model_exit_name }), "set active label list failed");
-
- add_ret = GraphUtils::AddEdge(assign_node->GetOutControlAnchor(), active_node->GetInControlAnchor());
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add assign_node to active_node ctrl edge failed, add_ret=%u.", add_ret);
- return FAILED;
- }
-
- // 3. Insert model exit node and add ctrl edge
- NodePtr model_exit_node = InsertOp(compute_graph, MODELEXIT, model_exit_name, {}, {});
- if (model_exit_node == nullptr) {
- GELOGE(FAILED, "Insert model_exit node:%s for IterCtrlTrueStream failed.", model_exit_name.c_str());
- return FAILED;
- }
- GE_CHK_STATUS_RET(SetStreamLabel(model_exit_node, model_exit_name), "set stream label failed");
-
- add_ret = GraphUtils::AddEdge(active_node->GetOutControlAnchor(), model_exit_node->GetInControlAnchor());
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add active_node to model_exit_node ctrl edge failed, add_ret=%u.", add_ret);
- return FAILED;
- }
- }
-
- GELOGI("CreateIterCtrlFalseBranch success.");
- return SUCCESS;
- }
-
- Status FlowCtrlPass::AddFpBpIteratorCtrl(ComputeGraphPtr &compute_graph, NodePtr &pre_node) {
- GE_IF_BOOL_EXEC(pre_node == nullptr, DOMI_LOGE("pre_node is nullptr"); return FAILED);
- string pre_node_name = pre_node->GetName();
- GELOGI("Add FpBp Iterator ctrl, pre node:%s.", pre_node_name.c_str());
- // 1. Get or add variables
- NodePtr loop_cond_node = AddVariableNode(compute_graph, NODE_NAME_FLOWCTRL_LOOP_COND);
- if (loop_cond_node == nullptr) {
- GELOGE(FAILED, "Add variable:%s failed.", NODE_NAME_FLOWCTRL_LOOP_COND.c_str());
- return FAILED;
- }
- NodePtr loop_inc_node = AddVariableNode(compute_graph, NODE_NAME_FLOWCTRL_LOOP_INCREMENT);
- if (loop_inc_node == nullptr) {
- GELOGE(FAILED, "Add variable:%s failed.", NODE_NAME_FLOWCTRL_LOOP_INCREMENT.c_str());
- return FAILED;
- }
- NodePtr loop_reset_node = AddVariableNode(compute_graph, NODE_NAME_FLOWCTRL_LOOP_RESETVALUE);
- if (loop_reset_node == nullptr) {
- GELOGE(FAILED, "Add variable:%s failed.", NODE_NAME_FLOWCTRL_LOOP_RESETVALUE.c_str());
- return FAILED;
- }
- NodePtr iter_per_loop_node = AddVariableNode(compute_graph, NODE_NAME_FLOWCTRL_LOOP_PER_ITER);
- if (iter_per_loop_node == nullptr) {
- GELOGE(FAILED, "Add variable:%s failed.", NODE_NAME_FLOWCTRL_LOOP_PER_ITER.c_str());
- return FAILED;
- }
-
- // 2. Add StreamSwitch
- string switch_name = pre_node_name + "_" + NODE_NAME_STREAM_SWITCH;
- NodePtr switch_node = InsertStreamSwitchOp(compute_graph, switch_name, loop_cond_node, iter_per_loop_node);
- if (switch_node == nullptr) {
- GELOGE(FAILED, "InsertStreamSwitchOp:%s failed.", switch_name.c_str());
- return FAILED;
- }
- GE_CHK_STATUS_RET(SetStreamLabel(switch_node, switch_name), "set stream label failed");
-
- graphStatus add_ret = GraphUtils::AddEdge(pre_node->GetOutControlAnchor(), switch_node->GetInControlAnchor());
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add pre node:%s to switch_node:%s ctrl edge failed, ret = %u.", pre_node_name.c_str(),
- switch_name.c_str(), add_ret);
- return FAILED;
- }
-
- // 3. Create switch false branch: return results and reset the loopCond
- Status ret = CreateIterCtrlFalseBranch(compute_graph, loop_cond_node, loop_reset_node, switch_node);
- if (ret != SUCCESS) {
- GELOGE(ret, "CreateIterCtrlFalseBranch fail, pre node:%s.", pre_node_name.c_str());
- return ret;
- }
-
- // 4. Create switch true branch:
- // active train streams and increase the loopCond
- ret = CreateIterCtrlTrueBranch(compute_graph, loop_cond_node, loop_inc_node, switch_node);
- if (ret != SUCCESS) {
- GELOGE(ret, "CreateIterCtrlTrueBranch fail, pre node:%s.", pre_node_name.c_str());
- return ret;
- }
- return SUCCESS;
- }
-
- Status FlowCtrlPass::AddSpecialNodeIteratorCtrl(ComputeGraphPtr &compute_graph, NodePtr &loop_after_node) {
- /*
- * before add:
- * iterator
- * |
- * v
- * MemcpyAsync
- *
- * after add:
- * iterator ----------┐
- * | ┆c
- * v c v c
- * MemcpyAsync-----> switch -----> active
- * ^
- * / \
- * itersPerLoop loopCond
- */
- GE_IF_BOOL_EXEC(loop_after_node == nullptr || compute_graph == nullptr,
- DOMI_LOGE("loop after node or compute graph is null"); return FAILED);
- InDataAnchorPtr in_anchor = loop_after_node->GetInDataAnchor(0);
- if (in_anchor == nullptr || in_anchor->GetPeerOutAnchor() == nullptr) {
- GELOGE(FAILED, "Find %s in data anchor failed.", loop_after_node->GetName().c_str());
- return FAILED;
- }
- NodePtr loop_pre_node = in_anchor->GetPeerOutAnchor()->GetOwnerNode();
-
- // 1. Get variables
- NodePtr loop_cond_node = compute_graph->FindNode(NODE_NAME_FLOWCTRL_LOOP_COND);
- if (loop_cond_node == nullptr) {
- GELOGE(FAILED, "Find node :%s failed.", NODE_NAME_FLOWCTRL_LOOP_COND.c_str());
- return FAILED;
- }
- NodePtr iter_per_loop_node = compute_graph->FindNode(NODE_NAME_FLOWCTRL_LOOP_PER_ITER);
- if (iter_per_loop_node == nullptr) {
- GELOGE(FAILED, "Find node :%s failed.", NODE_NAME_FLOWCTRL_LOOP_PER_ITER.c_str());
- return FAILED;
- }
-
- // 2. Add StreamSwitch and edges to switch_node.
- GE_IF_BOOL_EXEC(loop_pre_node == nullptr, DOMI_LOGE("loop pre node is null"); return FAILED);
- string switch_name = loop_pre_node->GetName() + "_" + NODE_NAME_STREAM_SWITCH;
- NodePtr switch_node = InsertStreamSwitchOp(compute_graph, switch_name, loop_cond_node, iter_per_loop_node);
- if (switch_node == nullptr) {
- GELOGE(FAILED, "InsertStreamSwitchOp:%s failed.", switch_name.c_str());
- return FAILED;
- }
-
- GE_CHK_STATUS_RET(SetStreamLabel(switch_node, switch_name), "set stream label failed");
-
- graphStatus add_ret = GraphUtils::AddEdge(loop_pre_node->GetOutControlAnchor(), switch_node->GetInControlAnchor());
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add loop_pre_node:%s to switch_node:%s ctrl edge failed, ret = %u.",
- loop_pre_node->GetName().c_str(), switch_name.c_str(), add_ret);
- return FAILED;
- }
- add_ret = GraphUtils::AddEdge(loop_after_node->GetOutControlAnchor(), switch_node->GetInControlAnchor());
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add node:%s to switch_node:%s ctrl edge failed, ret = %u.", loop_after_node->GetName().c_str(),
- switch_name.c_str(), add_ret);
- return FAILED;
- }
-
- // 3. Create switch true branch: only active
- string active_name = switch_name + "_StreamActive";
- NodePtr active_node = InsertOp(compute_graph, STREAMACTIVE, active_name, {}, {});
- if (active_node == nullptr) {
- GELOGE(FAILED, "Insert stream active node:%s for SpecialNodeIteratorCtrl failed.", active_name.c_str());
- return FAILED;
- }
-
- GE_CHK_STATUS_RET(SetStreamLabel(active_node, active_name), "set stream label failed");
-
- GE_IF_BOOL_EXEC(!AttrUtils::SetBool(active_node->GetOpDesc(), ATTR_NAME_IS_LOOP_ACTIVE, true),
- DOMI_LOGE("set ATTR_NAME_IS_LOOP_ACTIVE failed"); return FAILED);
-
- add_ret = GraphUtils::AddEdge(switch_node->GetOutControlAnchor(), active_node->GetInControlAnchor());
- if (add_ret != GRAPH_SUCCESS) {
- GELOGE(FAILED, "Add switch_node:%s to active_node:%s ctrl edge failed, ret = %u.", switch_name.c_str(),
- active_name.c_str(), add_ret);
- return FAILED;
- }
-
- // used for stream assign to find true branch
- GE_CHK_STATUS_RET(SetActiveLabelList(switch_node, { active_name }), "set active label list failed");
- // used for stream assign to find active stream
- GE_CHK_STATUS_RET(SetActiveLabelList(active_node, { loop_pre_node->GetName() }), "set active label list failed");
- return SUCCESS;
- }
- } // namespace ge
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