c1aecc05e6
This patch extensively modifies DSENT so that it can be accessed using Python. To access the Python interface, DSENT needs to compiled as a shared library. For this purpose a CMakeLists.txt file has been added. Some of the code that is not required is being removed.
94 lines
4 KiB
C++
94 lines
4 KiB
C++
/* Copyright (c) 2012 Massachusetts Institute of Technology
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef __DSENT_MODEL_ELECTRICAL_TIMING_TREE_H__
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#define __DSENT_MODEL_ELECTRICAL_TIMING_TREE_H__
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#include <vector>
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#include "util/CommonType.h"
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#include "model/timing_graph/ElectricalTimingNode.h"
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namespace DSENT
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{
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using std::vector;
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class ElectricalDriver;
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class ElectricalTimingTree
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{
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public:
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// The visited number for the next timing run. This needs to be
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// global because several timing trees may be created to evaluate
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// a single timing path, causing problems
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static int msTreeNum;
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public:
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// Construct timing tree that watches over model_
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ElectricalTimingTree(const String& instance_name_, ElectricalModel* model_);
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~ElectricalTimingTree();
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public:
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// Get tree name
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const String& getInstanceName() const;
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// A wrapper for extractCritPathDelay
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// Update the tree num before do extract critical path delay recursively
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double performCritPathExtract(ElectricalTimingNode* node_);
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// Calculate the delay of the marked critical path from a starting node
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double calculateCritPathDelay(ElectricalTimingNode* node_) const;
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// Calculate the transition at a node
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double calculateNodeTransition(ElectricalTimingNode* node_) const;
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// Returns the optimal node to optimize timing (by sizing up) in the critical
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// path to reduce critical path delay
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ElectricalTimingNode* findNodeForTimingOpt(ElectricalTimingNode* node_) const;
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// Perform incremental timing optimization to guarantee that all timing paths from a
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// starting node meets a required delay
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// Return false if the timing optimization fails to meet the required delay
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bool performTimingOpt(ElectricalTimingNode* node_, double required_delay_);
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// Return the model
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ElectricalModel* getModel();
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private:
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// Disable the use of copy constructor
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ElectricalTimingTree(const ElectricalTimingTree& graph_);
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// Recursively calculate delay from a starting node, finding and marking the
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// critical path along the way and returns the delay of the critical path
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double extractCritPathDelay(ElectricalTimingNode* node_);
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public:
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// Set the sequence number of the timing tree
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static void setTreeNum(int tree_num_);
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static int getTreeNum();
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private:
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// Name of the timing tree
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const String m_instance_name_;
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// A pointer to the model that contains this node
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ElectricalModel* m_model_;
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}; // class ElectricalTimingTree
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} // namespace DSENT
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#endif // __DSENT_MODEL_ELECTRICAL_TIMING_TREE_H__
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