You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
3.2 KiB
92 lines
3.2 KiB
/**
|
|
* Copyright 2019-2020 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/prune_pass.h"
|
|
#include <deque>
|
|
#include <set>
|
|
#include <unordered_set>
|
|
#include <vector>
|
|
#include "common/debug/log.h"
|
|
#include "common/types.h"
|
|
#include "framework/common/debug/ge_log.h"
|
|
#include "framework/common/ge_inner_error_codes.h"
|
|
#include "graph/utils/node_utils.h"
|
|
|
|
namespace ge {
|
|
Status PrunePass::Run(ge::ComputeGraphPtr graph) {
|
|
GELOGD("PrunePass Start");
|
|
if (graph == nullptr) {
|
|
GELOGE(GE_GRAPH_ISNULL, "input compute graph is NULL.");
|
|
return GE_GRAPH_ISNULL;
|
|
}
|
|
|
|
std::vector<NodePtr> out_nodes;
|
|
std::unordered_set<NodePtr> nodes;
|
|
for (NodePtr &node_ptr : graph->GetDirectNode()) {
|
|
GE_CHECK_NOTNULL(node_ptr->GetOpDesc());
|
|
nodes.insert(node_ptr);
|
|
if (node_ptr->GetOpDesc()->GetType() == NETOUTPUT) {
|
|
out_nodes.push_back(node_ptr);
|
|
}
|
|
}
|
|
|
|
if (out_nodes.empty()) {
|
|
GELOGW("graph [%s] does not contain NETOUTPUT type node,no return value. Do nothing!", graph->GetName().c_str());
|
|
return ge::SUCCESS;
|
|
}
|
|
|
|
std::unordered_set<NodePtr> nodes_seen;
|
|
for (NodePtr &node_ptr : out_nodes) {
|
|
std::deque<NodePtr> queue;
|
|
queue.push_back(node_ptr);
|
|
nodes_seen.insert(node_ptr);
|
|
while (!queue.empty()) {
|
|
NodePtr node = queue.front();
|
|
GE_CHECK_NOTNULL(node->GetOpDesc());
|
|
queue.pop_front();
|
|
for (auto &in_node : node->GetInAllNodes()) {
|
|
if (nodes_seen.insert(in_node).second) {
|
|
queue.push_back(in_node);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
for (auto &node_ptr : nodes) {
|
|
if (nodes_seen.count(node_ptr) != 0) {
|
|
continue;
|
|
}
|
|
if (node_ptr->GetOpDesc()->GetType() == DATA || node_ptr->GetOpDesc()->GetType() == AIPPDATA) {
|
|
Status status = ge::GraphUtils::AddEdge(node_ptr->GetOutControlAnchor(), out_nodes[0]->GetInControlAnchor());
|
|
if (status != ge::SUCCESS) {
|
|
GELOGE(INTERNAL_ERROR, "[PrunePass] add control edge fail between DATA node[%s] and NETOUTPUT node[%s]!",
|
|
node_ptr->GetOpDesc()->GetName().c_str(), out_nodes[0]->GetOpDesc()->GetName().c_str());
|
|
return INTERNAL_ERROR;
|
|
}
|
|
GELOGI("[PrunePass] add extra control edge between DATA node[%s] and NETOUTPUT node[%s]!",
|
|
node_ptr->GetOpDesc()->GetName().c_str(), out_nodes[0]->GetOpDesc()->GetName().c_str());
|
|
continue;
|
|
}
|
|
// Remove subgraphs on the node before remove it in graph.
|
|
(void)NodeUtils::RemoveSubgraphsOnNode(node_ptr);
|
|
/// Common function:[RemoveNode] will delete not only input node but its constant input node also will be deleted
|
|
(void)graph->RemoveNode(node_ptr);
|
|
GELOGI("[PrunePass] remove graph node [%s]!", node_ptr->GetOpDesc()->GetName().c_str());
|
|
}
|
|
return ge::SUCCESS;
|
|
}
|
|
} // namespace ge
|