Browse Source
Removed GraphTransition class, which is now replaced by SparseMatrix in the instances where it was used before. Changed GraphAnalyzer accordingly and adapted tests.
tempestpy_adaptions
Removed GraphTransition class, which is now replaced by SparseMatrix in the instances where it was used before. Changed GraphAnalyzer accordingly and adapted tests.
tempestpy_adaptions
dehnert
12 years ago
13 changed files with 244 additions and 345 deletions
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2src/modelchecker/GmmxxMdpPrctlModelChecker.h
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6src/modelchecker/TopologicalValueIterationMdpPrctlModelChecker.h
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5src/models/AbstractDeterministicModel.h
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73src/models/AbstractModel.h
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7src/models/AbstractNondeterministicModel.h
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258src/models/GraphTransitions.h
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24src/storage/SparseMatrix.h
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41src/utility/GraphAnalyzer.h
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9test/functional/storm-functional-tests.cpp
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98test/performance/graph/GraphTest.cpp
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12test/performance/modelchecker/GmmxxDtmcPrctModelCheckerTest.cpp
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40test/performance/modelchecker/GmmxxMdpPrctModelCheckerTest.cpp
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12test/performance/storm-performance-tests.cpp
@ -1,258 +0,0 @@ |
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/* |
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* GraphTransitions.h |
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* |
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* Created on: 17.11.2012 |
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* Author: Christian Dehnert |
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*/ |
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|
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#ifndef STORM_MODELS_GRAPHTRANSITIONS_H_ |
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#define STORM_MODELS_GRAPHTRANSITIONS_H_ |
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#include "src/storage/SparseMatrix.h" |
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#include <algorithm> |
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#include <memory> |
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namespace storm { |
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namespace models { |
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/*! |
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* This class stores the successors of all states in a state space of the |
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* given size. |
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*/ |
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template <class T> |
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class GraphTransitions { |
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public: |
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/*! |
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* Just typedef the iterator as a pointer to the index type. |
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*/ |
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typedef const uint_fast64_t * stateSuccessorIterator; |
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|
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//! Constructor |
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/*! |
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* Constructs an object representing the graph structure of the given |
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* transition relation, which is given by a sparse matrix. |
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* @param transitionMatrix The (0-based) matrix representing the transition |
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* relation. |
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* @param forward If set to true, this objects will store the graph structure |
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* of the backwards transition relation. |
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*/ |
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GraphTransitions(storm::storage::SparseMatrix<T> const& transitionMatrix, bool forward) |
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: numberOfStates(transitionMatrix.getColumnCount()), numberOfTransitions(transitionMatrix.getNonZeroEntryCount()), successorList(numberOfTransitions), stateIndications(numberOfStates + 1) { |
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if (forward) { |
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this->initializeForward(transitionMatrix); |
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} else { |
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this->initializeBackward(transitionMatrix); |
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} |
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} |
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GraphTransitions(storm::storage::SparseMatrix<T> const& transitionMatrix, std::vector<uint_fast64_t> const& nondeterministicChoiceIndices, bool forward) |
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: numberOfStates(transitionMatrix.getColumnCount()), numberOfTransitions(transitionMatrix.getNonZeroEntryCount()), successorList(numberOfTransitions), stateIndications(numberOfStates + 1) { |
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if (forward) { |
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this->initializeForward(transitionMatrix, nondeterministicChoiceIndices); |
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} else { |
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this->initializeBackward(transitionMatrix, nondeterministicChoiceIndices); |
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} |
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} |
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GraphTransitions(GraphTransitions<T> const& transitions, std::vector<std::vector<std::uint_fast64_t>> const& stronglyConnectedComponents, std::map<uint_fast64_t, uint_fast64_t> const& stateToSccMap) |
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: numberOfStates(stronglyConnectedComponents.size()), numberOfTransitions(0), successorList(), stateIndications(numberOfStates + 1) { |
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this->initializeFromSccDecomposition(transitions, stronglyConnectedComponents, stateToSccMap); |
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} |
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GraphTransitions() : numberOfStates(0), numberOfTransitions(0), successorList(), stateIndications() { |
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// Intentionally left empty. |
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} |
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/*! |
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* Retrieves the size of the internal representation of the graph transitions in memory. |
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* @return the size of the internal representation of the graph transitions in memory |
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* measured in bytes. |
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*/ |
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virtual uint_fast64_t getSizeInMemory() const { |
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uint_fast64_t result = sizeof(this) + (numberOfStates + numberOfTransitions + 1) * sizeof(uint_fast64_t); |
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return result; |
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} |
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uint_fast64_t getNumberOfStates() const { |
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return numberOfStates; |
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} |
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uint_fast64_t getNumberOfTransitions() const { |
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return numberOfTransitions; |
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} |
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|
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/*! |
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* Returns an iterator to the successors of the given state. |
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* @param state The state for which to get the successor iterator. |
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* @return An iterator to the predecessors of the given states. |
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*/ |
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stateSuccessorIterator beginStateSuccessorsIterator(uint_fast64_t state) const { |
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return &(this->successorList[0]) + this->stateIndications[state]; |
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} |
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|
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/*! |
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* Returns an iterator referring to the element after the successors of |
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* the given state. |
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* @param state The state for which to get the iterator. |
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* @return An iterator referring to the element after the successors of |
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* the given state. |
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*/ |
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stateSuccessorIterator endStateSuccessorsIterator(uint_fast64_t state) const { |
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return &(this->successorList[0]) + this->stateIndications[state + 1]; |
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} |
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|
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/*! |
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* Returns a (naive) string representation of the transitions in this object. |
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* @returns a (naive) string representation of the transitions in this object. |
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*/ |
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std::string toString() const { |
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std::stringstream stream; |
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for (uint_fast64_t state = 0; state < numberOfStates; ++state) { |
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for (auto succIt = this->beginStateSuccessorsIterator(state), succIte = this->endStateSuccessorsIterator(state); succIt != succIte; ++succIt) { |
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stream << state << " -> " << *succIt << std::endl; |
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} |
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} |
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return stream.str(); |
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} |
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private: |
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/*! |
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* Initializes this graph transitions object using the forward transition |
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* relation given by means of a sparse matrix. |
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*/ |
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void initializeForward(storm::storage::SparseMatrix<T> const& transitionMatrix) { |
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// First, we copy the index list from the sparse matrix as this will |
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// stay the same. |
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std::copy(transitionMatrix.constColumnIteratorBegin(), transitionMatrix.constColumnIteratorEnd(), this->stateIndications.begin()); |
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// Now we can iterate over all rows of the transition matrix and record the target state. |
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for (uint_fast64_t i = 0, currentNonZeroElement = 0; i < numberOfStates; i++) { |
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for (auto rowIt = transitionMatrix.constColumnIteratorBegin(i); rowIt != transitionMatrix.constColumnIteratorEnd(i); ++rowIt) { |
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this->successorList[currentNonZeroElement++] = *rowIt; |
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} |
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} |
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} |
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void initializeForward(storm::storage::SparseMatrix<T> const& transitionMatrix, std::vector<uint_fast64_t> const& nondeterministicChoiceIndices) { |
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// We can directly copy the starting indices from the transition matrix as we do not |
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// eliminate duplicate transitions and therefore will have as many non-zero entries as this |
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// matrix. |
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typename storm::storage::SparseMatrix<T>::ConstRowsIterator rowsIt(transitionMatrix); |
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for (uint_fast64_t i = 0; i < numberOfStates; ++i) { |
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rowsIt.moveToRow(nondeterministicChoiceIndices[i]); |
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this->stateIndications[i] = rowsIt.index(); |
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} |
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this->stateIndications[numberOfStates] = numberOfTransitions; |
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// Now we can iterate over all rows of the transition matrix and record |
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// the target state. |
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for (uint_fast64_t i = 0, currentNonZeroElement = 0; i < numberOfStates; i++) { |
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for (uint_fast64_t j = nondeterministicChoiceIndices[i]; j < nondeterministicChoiceIndices[i + 1]; ++j) { |
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for (auto rowIt = transitionMatrix.constColumnIteratorBegin(j); rowIt != transitionMatrix.constColumnIteratorEnd(j); ++rowIt) { |
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this->successorList[currentNonZeroElement++] = *rowIt; |
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} |
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} |
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} |
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} |
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|
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/*! |
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* Initializes this graph transitions object using the backwards transition |
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* relation, whose forward transition relation is given by means of a sparse |
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* matrix. |
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*/ |
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void initializeBackward(storm::storage::SparseMatrix<T> const& transitionMatrix) { |
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// First, we need to count how many backward transitions each state has. |
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for (uint_fast64_t i = 0; i < numberOfStates; ++i) { |
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for (auto rowIt = transitionMatrix.constColumnIteratorBegin(i); rowIt != transitionMatrix.constColumnIteratorEnd(i); ++rowIt) { |
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this->stateIndications[*rowIt + 1]++; |
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} |
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} |
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|
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// Now compute the accumulated offsets. |
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for (uint_fast64_t i = 1; i < numberOfStates; ++i) { |
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this->stateIndications[i] = this->stateIndications[i - 1] + this->stateIndications[i]; |
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} |
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|
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// Put a sentinel element at the end of the indices list. This way, |
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// for each state i the range of indices can be read off between |
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// state_indices_list[i] and state_indices_list[i + 1]. |
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this->stateIndications[numberOfStates] = numberOfTransitions; |
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|
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// Create an array that stores the next index for each state. Initially |
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// this corresponds to the previously computed accumulated offsets. |
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std::vector<uint_fast64_t> nextIndices = stateIndications; |
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|
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// Now we are ready to actually fill in the list of predecessors for |
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// every state. Again, we start by considering all but the last row. |
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for (uint_fast64_t i = 0; i < numberOfStates; ++i) { |
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for (auto rowIt = transitionMatrix.constColumnIteratorBegin(i); rowIt != transitionMatrix.constColumnIteratorEnd(i); ++rowIt) { |
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this->successorList[nextIndices[*rowIt]++] = i; |
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} |
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} |
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} |
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|
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void initializeBackward(storm::storage::SparseMatrix<T> const& transitionMatrix, std::vector<uint_fast64_t> const& nondeterministicChoiceIndices) { |
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// First, we need to count how many backward transitions each state has. |
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for (uint_fast64_t i = 0; i < numberOfStates; ++i) { |
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for (uint_fast64_t j = nondeterministicChoiceIndices[i]; j < nondeterministicChoiceIndices[i + 1]; ++j) { |
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for (auto rowIt = transitionMatrix.constColumnIteratorBegin(j); rowIt != transitionMatrix.constColumnIteratorEnd(j); ++rowIt) { |
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this->stateIndications[*rowIt + 1]++; |
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} |
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} |
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} |
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|
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// Now compute the accumulated offsets. |
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for (uint_fast64_t i = 1; i < numberOfStates; i++) { |
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this->stateIndications[i] = this->stateIndications[i - 1] + this->stateIndications[i]; |
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} |
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|
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// Put a sentinel element at the end of the indices list. This way, |
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// for each state i the range of indices can be read off between |
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// state_indices_list[i] and state_indices_list[i + 1]. |
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this->stateIndications[numberOfStates] = numberOfTransitions; |
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|
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// Create an array that stores the next index for each state. Initially |
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// this corresponds to the previously computed accumulated offsets. |
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std::vector<uint_fast64_t> nextIndices = stateIndications; |
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|
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// Now we are ready to actually fill in the list of predecessors for |
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// every state. Again, we start by considering all but the last row. |
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for (uint_fast64_t i = 0; i < numberOfStates; i++) { |
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for (uint_fast64_t j = nondeterministicChoiceIndices[i]; j < nondeterministicChoiceIndices[i + 1]; ++j) { |
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for (auto rowIt = transitionMatrix.constColumnIteratorBegin(j); rowIt != transitionMatrix.constColumnIteratorEnd(j); ++rowIt) { |
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this->successorList[nextIndices[*rowIt]++] = i; |
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} |
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} |
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} |
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} |
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/*! |
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* Store the number of states to determine the highest index at which the |
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* state_indices_list may be accessed. |
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*/ |
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uint_fast64_t numberOfStates; |
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/*! |
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* Store the number of non-zero transition entries to determine the highest |
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* index at which the predecessor_list may be accessed. |
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*/ |
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uint_fast64_t numberOfTransitions; |
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/*! A list of successors for *all* states. */ |
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std::vector<uint_fast64_t> successorList; |
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/*! |
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* A list of indices indicating at which position in the global array the |
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* successors of a state can be found. |
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*/ |
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std::vector<uint_fast64_t> stateIndications; |
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}; |
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} // namespace models |
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} // namespace storm |
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#endif /* STORM_MODELS_GRAPHTRANSITIONS_H_ */ |
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