sp
/
tempest
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

started making row grouping optional 

Former-commit-id: b90ae91e75
main
dehnert 10 years ago
parent
1f5439e270
commit
f81ce1cac1
2 changed files with 148 additions and 96 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 198
      src/storage/SparseMatrix.cpp
  2. 46
      src/storage/SparseMatrix.h

198
src/storage/SparseMatrix.cpp
View File

@ -80,8 +80,9 @@ namespace storm {
if (initialEntryCountSet) { if (initialEntryCountSet) {
columnsAndValues.reserve(initialEntryCount); columnsAndValues.reserve(initialEntryCount);
} }
if (initialRowGroupCountSet) {
rowGroupIndices.reserve(initialRowGroupCount + 1);
if (initialRowGroupCountSet && hasCustomRowGrouping) {
rowGroupIndices = std::vector<index_type>();
rowGroupIndices.get().reserve(initialRowGroupCount + 1);
} }
rowIndications.push_back(0); rowIndications.push_back(0);
} }
@ -92,8 +93,8 @@ namespace storm {
// If the matrix has a custom row grouping, we move it and remove the last element to make it 'open' again. // If the matrix has a custom row grouping, we move it and remove the last element to make it 'open' again.
if (hasCustomRowGrouping) { if (hasCustomRowGrouping) {
rowGroupIndices = std::move(matrix.rowGroupIndices); rowGroupIndices = std::move(matrix.rowGroupIndices);
rowGroupIndices.pop_back();
currentRowGroup = rowGroupIndices.size() - 1;
rowGroupIndices.get().pop_back();
currentRowGroup = rowGroupIndices.get().size() - 1;
} }
// Likewise, we need to 'open' the row indications again. // Likewise, we need to 'open' the row indications again.
@ -141,7 +142,7 @@ namespace storm {
void SparseMatrixBuilder<ValueType>::newRowGroup(index_type startingRow) { void SparseMatrixBuilder<ValueType>::newRowGroup(index_type startingRow) {
STORM_LOG_THROW(hasCustomRowGrouping, storm::exceptions::InvalidStateException, "Matrix was not created to have a custom row grouping."); STORM_LOG_THROW(hasCustomRowGrouping, storm::exceptions::InvalidStateException, "Matrix was not created to have a custom row grouping.");
STORM_LOG_THROW(startingRow >= lastRow, storm::exceptions::InvalidStateException, "Illegal row group with negative size."); STORM_LOG_THROW(startingRow >= lastRow, storm::exceptions::InvalidStateException, "Illegal row group with negative size.");
rowGroupIndices.push_back(startingRow);
rowGroupIndices.get().push_back(startingRow);
++currentRowGroup; ++currentRowGroup;
// Close all rows from the most recent one to the starting row. // Close all rows from the most recent one to the starting row.
@ -186,11 +187,7 @@ namespace storm {
} }
// Check whether row groups are missing some entries. // Check whether row groups are missing some entries.
if (!hasCustomRowGrouping) {
for (index_type i = 0; i <= rowCount; ++i) {
rowGroupIndices.push_back(i);
}
} else {
if (hasCustomRowGrouping) {
uint_fast64_t rowGroupCount = currentRowGroup; uint_fast64_t rowGroupCount = currentRowGroup;
if (initialRowGroupCountSet && forceInitialDimensions) { if (initialRowGroupCountSet && forceInitialDimensions) {
STORM_LOG_THROW(rowGroupCount <= initialRowGroupCount, storm::exceptions::InvalidStateException, "Expected not more than " << initialRowGroupCount << " row groups, but got " << rowGroupCount << "."); STORM_LOG_THROW(rowGroupCount <= initialRowGroupCount, storm::exceptions::InvalidStateException, "Expected not more than " << initialRowGroupCount << " row groups, but got " << rowGroupCount << ".");
@ -199,7 +196,7 @@ namespace storm {
rowGroupCount = std::max(rowGroupCount, overriddenRowGroupCount); rowGroupCount = std::max(rowGroupCount, overriddenRowGroupCount);
for (index_type i = currentRowGroup; i <= rowGroupCount; ++i) { for (index_type i = currentRowGroup; i <= rowGroupCount; ++i) {
rowGroupIndices.push_back(rowCount);
rowGroupIndices.get().push_back(rowCount);
} }
} }
@ -295,12 +292,12 @@ namespace storm {
} }
template<typename ValueType> template<typename ValueType>
SparseMatrix<ValueType>::SparseMatrix() : rowCount(0), columnCount(0), entryCount(0), nonzeroEntryCount(0), columnsAndValues(), rowIndications(), nontrivialRowGrouping(false), rowGroupIndices() {
SparseMatrix<ValueType>::SparseMatrix() : rowCount(0), columnCount(0), entryCount(0), nonzeroEntryCount(0), columnsAndValues(), rowIndications(), rowGroupIndices() {
// Intentionally left empty. // Intentionally left empty.
} }
template<typename ValueType> template<typename ValueType>
SparseMatrix<ValueType>::SparseMatrix(SparseMatrix<ValueType> const& other) : rowCount(other.rowCount), columnCount(other.columnCount), entryCount(other.entryCount), nonzeroEntryCount(other.nonzeroEntryCount), columnsAndValues(other.columnsAndValues), rowIndications(other.rowIndications), nontrivialRowGrouping(other.nontrivialRowGrouping), rowGroupIndices(other.rowGroupIndices) {
SparseMatrix<ValueType>::SparseMatrix(SparseMatrix<ValueType> const& other) : rowCount(other.rowCount), columnCount(other.columnCount), entryCount(other.entryCount), nonzeroEntryCount(other.nonzeroEntryCount), columnsAndValues(other.columnsAndValues), rowIndications(other.rowIndications), rowGroupIndices(other.rowGroupIndices) {
// Intentionally left empty. // Intentionally left empty.
} }
@ -312,7 +309,7 @@ namespace storm {
} }
template<typename ValueType> template<typename ValueType>
SparseMatrix<ValueType>::SparseMatrix(SparseMatrix<ValueType>&& other) : rowCount(other.rowCount), columnCount(other.columnCount), entryCount(other.entryCount), nonzeroEntryCount(other.nonzeroEntryCount), columnsAndValues(std::move(other.columnsAndValues)), rowIndications(std::move(other.rowIndications)), nontrivialRowGrouping(other.nontrivialRowGrouping), rowGroupIndices(std::move(other.rowGroupIndices)) {
SparseMatrix<ValueType>::SparseMatrix(SparseMatrix<ValueType>&& other) : rowCount(other.rowCount), columnCount(other.columnCount), entryCount(other.entryCount), nonzeroEntryCount(other.nonzeroEntryCount), columnsAndValues(std::move(other.columnsAndValues)), rowIndications(std::move(other.rowIndications)), rowGroupIndices(std::move(other.rowGroupIndices)) {
// Now update the source matrix // Now update the source matrix
other.rowCount = 0; other.rowCount = 0;
other.columnCount = 0; other.columnCount = 0;
@ -320,12 +317,12 @@ namespace storm {
} }
template<typename ValueType> template<typename ValueType>
SparseMatrix<ValueType>::SparseMatrix(index_type columnCount, std::vector<index_type> const& rowIndications, std::vector<MatrixEntry<index_type, ValueType>> const& columnsAndValues, std::vector<index_type> const& rowGroupIndices, bool nontrivialRowGrouping) : rowCount(rowIndications.size() - 1), columnCount(columnCount), entryCount(columnsAndValues.size()), nonzeroEntryCount(0), columnsAndValues(columnsAndValues), rowIndications(rowIndications), nontrivialRowGrouping(nontrivialRowGrouping), rowGroupIndices(rowGroupIndices) {
SparseMatrix<ValueType>::SparseMatrix(index_type columnCount, std::vector<index_type> const& rowIndications, std::vector<MatrixEntry<index_type, ValueType>> const& columnsAndValues, boost::optional<std::vector<index_type>> const& rowGroupIndices) : rowCount(rowIndications.size() - 1), columnCount(columnCount), entryCount(columnsAndValues.size()), nonzeroEntryCount(0), columnsAndValues(columnsAndValues), rowIndications(rowIndications), trivialRowGrouping(!rowGroupIndices), rowGroupIndices(rowGroupIndices) {
this->updateNonzeroEntryCount(); this->updateNonzeroEntryCount();
} }
template<typename ValueType> template<typename ValueType>
SparseMatrix<ValueType>::SparseMatrix(index_type columnCount, std::vector<index_type>&& rowIndications, std::vector<MatrixEntry<index_type, ValueType>>&& columnsAndValues, std::vector<index_type>&& rowGroupIndices, bool nontrivialRowGrouping) : rowCount(rowIndications.size() - 1), columnCount(columnCount), entryCount(columnsAndValues.size()), nonzeroEntryCount(0), columnsAndValues(std::move(columnsAndValues)), rowIndications(std::move(rowIndications)), nontrivialRowGrouping(nontrivialRowGrouping), rowGroupIndices(std::move(rowGroupIndices)) {
SparseMatrix<ValueType>::SparseMatrix(index_type columnCount, std::vector<index_type>&& rowIndications, std::vector<MatrixEntry<index_type, ValueType>>&& columnsAndValues, boost::optional<std::vector<index_type>>&& rowGroupIndices, bool nontrivialRowGrouping) : rowCount(rowIndications.size() - 1), columnCount(columnCount), entryCount(columnsAndValues.size()), nonzeroEntryCount(0), columnsAndValues(std::move(columnsAndValues)), rowIndications(std::move(rowIndications)), trivialRowGrouping(!rowGroupIndices), rowGroupIndices(std::move(rowGroupIndices)) {
this->updateNonzeroEntryCount(); this->updateNonzeroEntryCount();
} }
@ -341,7 +338,7 @@ namespace storm {
columnsAndValues = other.columnsAndValues; columnsAndValues = other.columnsAndValues;
rowIndications = other.rowIndications; rowIndications = other.rowIndications;
rowGroupIndices = other.rowGroupIndices; rowGroupIndices = other.rowGroupIndices;
nontrivialRowGrouping = other.nontrivialRowGrouping;
trivialRowGrouping = other.trivialRowGrouping;
} }
return *this; return *this;
@ -359,7 +356,7 @@ namespace storm {
columnsAndValues = std::move(other.columnsAndValues); columnsAndValues = std::move(other.columnsAndValues);
rowIndications = std::move(other.rowIndications); rowIndications = std::move(other.rowIndications);
rowGroupIndices = std::move(other.rowGroupIndices); rowGroupIndices = std::move(other.rowGroupIndices);
nontrivialRowGrouping = other.nontrivialRowGrouping;
trivialRowGrouping = other.trivialRowGrouping;
} }
return *this; return *this;
@ -381,7 +378,11 @@ namespace storm {
if (!equalityResult) { if (!equalityResult) {
return false; return false;
} }
equalityResult &= this->getRowGroupIndices() == other.getRowGroupIndices();
if (!this->hasTrivialRowGrouping() && !other.hasTrivialRowGrouping()) {
equalityResult &= this->getRowGroupIndices() == other.getRowGroupIndices();
} else {
equalityResult &= this->hasTrivialRowGrouping() && other.hasTrivialRowGrouping();
}
if (!equalityResult) { if (!equalityResult) {
return false; return false;
} }
@ -433,8 +434,12 @@ namespace storm {
template<typename T> template<typename T>
uint_fast64_t SparseMatrix<T>::getRowGroupEntryCount(uint_fast64_t const group) const { uint_fast64_t SparseMatrix<T>::getRowGroupEntryCount(uint_fast64_t const group) const {
uint_fast64_t result = 0; uint_fast64_t result = 0;
for (uint_fast64_t row = this->getRowGroupIndices()[group]; row < this->getRowGroupIndices()[group + 1]; ++row) {
result += (this->rowIndications[row + 1] - this->rowIndications[row]);
if (!this->hasTrivialRowGrouping()) {
for (uint_fast64_t row = this->getRowGroupIndices()[group]; row < this->getRowGroupIndices()[group + 1]; ++row) {
result += (this->rowIndications[row + 1] - this->rowIndications[row]);
}
} else {
result += (this->rowIndications[group + 1] - this->rowIndications[group]);
} }
return result; return result;
} }
@ -473,7 +478,11 @@ namespace storm {
template<typename ValueType> template<typename ValueType>
typename SparseMatrix<ValueType>::index_type SparseMatrix<ValueType>::getRowGroupCount() const { typename SparseMatrix<ValueType>::index_type SparseMatrix<ValueType>::getRowGroupCount() const {
return rowGroupIndices.size() - 1;
if (!this->hasTrivialRowGrouping()) {
return rowGroupIndices.get().size() - 1;
} else {
return rowCount;
}
} }
template<typename ValueType> template<typename ValueType>
@ -483,7 +492,15 @@ namespace storm {
template<typename ValueType> template<typename ValueType>
std::vector<typename SparseMatrix<ValueType>::index_type> const& SparseMatrix<ValueType>::getRowGroupIndices() const { std::vector<typename SparseMatrix<ValueType>::index_type> const& SparseMatrix<ValueType>::getRowGroupIndices() const {
return rowGroupIndices;
// If there is no current row grouping, we need to create it.
if (!this->rowGroupIndices) {
STORM_LOG_ASSERT(trivialRowGrouping, "Only trivial row-groupings can be constructed on-the-fly.");
this->rowGroupIndices = std::vector<index_type>(this->getRowCount() + 1);
for (uint_fast64_t group = 0; group < this->getRowCount(); ++group) {
this->rowGroupIndices.get()[group] = group;
}
}
return rowGroupIndices.get();
} }
template<typename ValueType> template<typename ValueType>
@ -495,9 +512,15 @@ namespace storm {
template<typename ValueType> template<typename ValueType>
void SparseMatrix<ValueType>::makeRowGroupsAbsorbing(storm::storage::BitVector const& rowGroupConstraint) { void SparseMatrix<ValueType>::makeRowGroupsAbsorbing(storm::storage::BitVector const& rowGroupConstraint) {
for (auto rowGroup : rowGroupConstraint) {
for (index_type row = this->getRowGroupIndices()[rowGroup]; row < this->getRowGroupIndices()[rowGroup + 1]; ++row) {
makeRowDirac(row, rowGroup);
if (!this->hasTrivialRowGrouping()) {
for (auto rowGroup : rowGroupConstraint) {
for (index_type row = this->getRowGroupIndices()[rowGroup]; row < this->getRowGroupIndices()[rowGroup + 1]; ++row) {
makeRowDirac(row, rowGroup);
}
}
} else {
for (auto rowGroup : rowGroupConstraint) {
makeRowDirac(rowGroup, rowGroup);
} }
} }
} }
@ -550,9 +573,15 @@ namespace storm {
std::vector<ValueType> SparseMatrix<ValueType>::getConstrainedRowGroupSumVector(storm::storage::BitVector const& rowGroupConstraint, storm::storage::BitVector const& columnConstraint) const { std::vector<ValueType> SparseMatrix<ValueType>::getConstrainedRowGroupSumVector(storm::storage::BitVector const& rowGroupConstraint, storm::storage::BitVector const& columnConstraint) const {
std::vector<ValueType> result; std::vector<ValueType> result;
result.reserve(rowGroupConstraint.getNumberOfSetBits()); result.reserve(rowGroupConstraint.getNumberOfSetBits());
for (auto rowGroup : rowGroupConstraint) {
for (index_type row = this->getRowGroupIndices()[rowGroup]; row < this->getRowGroupIndices()[rowGroup + 1]; ++row) {
result.push_back(getConstrainedRowSum(row, columnConstraint));
if (!this->hasTrivialRowGrouping()) {
for (auto rowGroup : rowGroupConstraint) {
for (index_type row = this->getRowGroupIndices()[rowGroup]; row < this->getRowGroupIndices()[rowGroup + 1]; ++row) {
result.push_back(getConstrainedRowSum(row, columnConstraint));
}
}
} else {
for (auto rowGroup : rowGroupConstraint) {
result.push_back(getConstrainedRowSum(rowGroup, columnConstraint));
} }
} }
return result; return result;
@ -571,24 +600,29 @@ namespace storm {
} }
auto res = getSubmatrix(rowConstraint, columnConstraint, fakeRowGroupIndices, insertDiagonalElements); auto res = getSubmatrix(rowConstraint, columnConstraint, fakeRowGroupIndices, insertDiagonalElements);
// Create a new row grouping that reflects the new sizes of the row groups.
std::vector<uint_fast64_t> newRowGroupIndices;
newRowGroupIndices.push_back(0);
auto selectedRowIt = rowConstraint.begin();
// For this, we need to count how many rows were preserved in every group.
for (uint_fast64_t group = 0; group < this->getRowGroupCount(); ++group) {
uint_fast64_t newRowCount = 0;
while (*selectedRowIt < this->getRowGroupIndices()[group + 1]) {
++selectedRowIt;
++newRowCount;
}
if (newRowCount > 0) {
newRowGroupIndices.push_back(newRowGroupIndices.back() + newRowCount);
// Create a new row grouping that reflects the new sizes of the row groups if the current matrix has a
// non trivial row-grouping.
if (!this->hasTrivialRowGrouping()) {
std::vector<uint_fast64_t> newRowGroupIndices;
newRowGroupIndices.push_back(0);
auto selectedRowIt = rowConstraint.begin();
// For this, we need to count how many rows were preserved in every group.
for (uint_fast64_t group = 0; group < this->getRowGroupCount(); ++group) {
uint_fast64_t newRowCount = 0;
while (*selectedRowIt < this->getRowGroupIndices()[group + 1]) {
++selectedRowIt;
++newRowCount;
}
if (newRowCount > 0) {
newRowGroupIndices.push_back(newRowGroupIndices.back() + newRowCount);
}
} }
res.trivialRowGrouping = false;
res.rowGroupIndices = newRowGroupIndices;
} }
res.rowGroupIndices = newRowGroupIndices;
return res; return res;
} }
} }
@ -635,13 +669,13 @@ namespace storm {
} }
// Create and initialize resulting matrix. // Create and initialize resulting matrix.
SparseMatrixBuilder<ValueType> matrixBuilder(subRows, submatrixColumnCount, subEntries, true, this->hasNontrivialRowGrouping());
SparseMatrixBuilder<ValueType> matrixBuilder(subRows, submatrixColumnCount, subEntries, true, !this->hasTrivialRowGrouping());
// Copy over selected entries. // Copy over selected entries.
rowGroupCount = 0; rowGroupCount = 0;
index_type rowCount = 0; index_type rowCount = 0;
for (auto index : rowGroupConstraint) { for (auto index : rowGroupConstraint) {
if (this->hasNontrivialRowGrouping()) {
if (!this->hasTrivialRowGrouping()) {
matrixBuilder.newRowGroup(rowCount); matrixBuilder.newRowGroup(rowCount);
} }
for (index_type i = rowGroupIndices[index]; i < rowGroupIndices[index + 1]; ++i) { for (index_type i = rowGroupIndices[index]; i < rowGroupIndices[index + 1]; ++i) {
@ -677,12 +711,12 @@ namespace storm {
template<typename ValueType> template<typename ValueType>
SparseMatrix<ValueType> SparseMatrix<ValueType>::restrictRows(storm::storage::BitVector const& rowsToKeep) const { SparseMatrix<ValueType> SparseMatrix<ValueType>::restrictRows(storm::storage::BitVector const& rowsToKeep) const {
// For now, we use the expensive call to submatrix. // For now, we use the expensive call to submatrix.
assert(rowsToKeep.size() == getRowCount());
assert(rowsToKeep.getNumberOfSetBits() >= getRowGroupCount());
STORM_LOG_ASSERT(rowsToKeep.size() == this->getRowCount(), "Dimensions mismatch.");
STORM_LOG_ASSERT(rowsToKeep.getNumberOfSetBits() >= this->getRowGroupCount(), "Invalid dimensions.");
SparseMatrix<ValueType> res(getSubmatrix(false, rowsToKeep, storm::storage::BitVector(getColumnCount(), true), false)); SparseMatrix<ValueType> res(getSubmatrix(false, rowsToKeep, storm::storage::BitVector(getColumnCount(), true), false));
assert(res.getRowCount() == rowsToKeep.getNumberOfSetBits());
assert(res.getColumnCount() == getColumnCount());
assert(getRowGroupCount() == res.getRowGroupCount());
STORM_LOG_ASSERT(res.getRowCount() == rowsToKeep.getNumberOfSetBits(), "Invalid dimensions");
STORM_LOG_ASSERT(res.getColumnCount() == this->getColumnCount(), "Invalid dimensions");
STORM_LOG_ASSERT(this->getRowGroupCount() == res.getRowGroupCount(), "Invalid dimensions");
return res; return res;
} }
@ -693,7 +727,7 @@ namespace storm {
index_type subEntries = 0; index_type subEntries = 0;
for (index_type rowGroupIndex = 0, rowGroupIndexEnd = rowGroupToRowIndexMapping.size(); rowGroupIndex < rowGroupIndexEnd; ++rowGroupIndex) { for (index_type rowGroupIndex = 0, rowGroupIndexEnd = rowGroupToRowIndexMapping.size(); rowGroupIndex < rowGroupIndexEnd; ++rowGroupIndex) {
// Determine which row we need to select from the current row group. // Determine which row we need to select from the current row group.
index_type rowToCopy = rowGroupIndices[rowGroupIndex] + rowGroupToRowIndexMapping[rowGroupIndex];
index_type rowToCopy = this->getRowGroupIndices()[rowGroupIndex] + rowGroupToRowIndexMapping[rowGroupIndex];
// Iterate through that row and count the number of slots we have to reserve for copying. // Iterate through that row and count the number of slots we have to reserve for copying.
bool foundDiagonalElement = false; bool foundDiagonalElement = false;
@ -709,12 +743,12 @@ namespace storm {
} }
// Now create the matrix to be returned with the appropriate size. // Now create the matrix to be returned with the appropriate size.
SparseMatrixBuilder<ValueType> matrixBuilder(rowGroupIndices.size() - 1, columnCount, subEntries);
SparseMatrixBuilder<ValueType> matrixBuilder(rowGroupIndices.get().size() - 1, columnCount, subEntries);
// Copy over the selected lines from the source matrix. // Copy over the selected lines from the source matrix.
for (index_type rowGroupIndex = 0, rowGroupIndexEnd = rowGroupToRowIndexMapping.size(); rowGroupIndex < rowGroupIndexEnd; ++rowGroupIndex) { for (index_type rowGroupIndex = 0, rowGroupIndexEnd = rowGroupToRowIndexMapping.size(); rowGroupIndex < rowGroupIndexEnd; ++rowGroupIndex) {
// Determine which row we need to select from the current row group. // Determine which row we need to select from the current row group.
index_type rowToCopy = rowGroupIndices[rowGroupIndex] + rowGroupToRowIndexMapping[rowGroupIndex];
index_type rowToCopy = this->getRowGroupIndices()[rowGroupIndex] + rowGroupToRowIndexMapping[rowGroupIndex];
// Iterate through that row and copy the entries. This also inserts a zero element on the diagonal if // Iterate through that row and copy the entries. This also inserts a zero element on the diagonal if
// there is no entry yet. // there is no entry yet.
@ -781,12 +815,7 @@ namespace storm {
} }
} }
std::vector<index_type> rowGroupIndices(rowCount + 1);
for (index_type i = 0; i <= rowCount; ++i) {
rowGroupIndices[i] = i;
}
storm::storage::SparseMatrix<ValueType> transposedMatrix(columnCount, std::move(rowIndications), std::move(columnsAndValues), std::move(rowGroupIndices), false);
storm::storage::SparseMatrix<ValueType> transposedMatrix(columnCount, std::move(rowIndications), std::move(columnsAndValues), boost::none);
return transposedMatrix; return transposedMatrix;
} }
@ -1056,30 +1085,46 @@ namespace storm {
template<typename ValueType> template<typename ValueType>
typename SparseMatrix<ValueType>::const_rows SparseMatrix<ValueType>::getRow(index_type rowGroup, index_type offset) const { typename SparseMatrix<ValueType>::const_rows SparseMatrix<ValueType>::getRow(index_type rowGroup, index_type offset) const {
assert(rowGroup < this->getRowGroupCount());
assert(offset < this->getRowGroupEntryCount(rowGroup));
return getRow(rowGroupIndices[rowGroup] + offset);
STORM_LOG_ASSERT(rowGroup < this->getRowGroupCount(), "Row group is out-of-bounds.");
STORM_LOG_ASSERT(offset < this->getRowGroupEntryCount(rowGroup), "Row offset in row-group is out-of-bounds.");
if (!this->hasTrivialRowGrouping()) {
return getRow(this->getRowGroupIndices()[rowGroup] + offset);
} else {
return getRow(this->getRowGroupIndices()[rowGroup] + offset);
}
} }
template<typename ValueType> template<typename ValueType>
typename SparseMatrix<ValueType>::rows SparseMatrix<ValueType>::getRow(index_type rowGroup, index_type offset) { typename SparseMatrix<ValueType>::rows SparseMatrix<ValueType>::getRow(index_type rowGroup, index_type offset) {
assert(rowGroup < this->getRowGroupCount());
assert(offset < this->getRowGroupEntryCount(rowGroup));
return getRow(rowGroupIndices[rowGroup] + offset);
STORM_LOG_ASSERT(rowGroup < this->getRowGroupCount(), "Row group is out-of-bounds.");
STORM_LOG_ASSERT(offset < this->getRowGroupEntryCount(rowGroup), "Row offset in row-group is out-of-bounds.");
if (!this->hasTrivialRowGrouping()) {
return getRow(this->getRowGroupIndices()[rowGroup] + offset);
} else {
return getRow(rowGroup + offset);
}
} }
template<typename ValueType> template<typename ValueType>
typename SparseMatrix<ValueType>::const_rows SparseMatrix<ValueType>::getRowGroup(index_type rowGroup) const { typename SparseMatrix<ValueType>::const_rows SparseMatrix<ValueType>::getRowGroup(index_type rowGroup) const {
assert(rowGroup < this->getRowGroupCount());
return getRows(rowGroupIndices[rowGroup], rowGroupIndices[rowGroup + 1] - 1);
STORM_LOG_ASSERT(rowGroup < this->getRowGroupCount(), "Row group is out-of-bounds.");
if (!this->hasTrivialRowGrouping()) {
return getRows(this->getRowGroupIndices()[rowGroup], this->getRowGroupIndices()[rowGroup + 1] - 1);
} else {
return getRows(rowGroup, rowGroup + 1);
}
} }
template<typename ValueType> template<typename ValueType>
typename SparseMatrix<ValueType>::rows SparseMatrix<ValueType>::getRowGroup(index_type rowGroup) { typename SparseMatrix<ValueType>::rows SparseMatrix<ValueType>::getRowGroup(index_type rowGroup) {
assert(rowGroup < this->getRowGroupCount());
return getRows(rowGroupIndices[rowGroup], rowGroupIndices[rowGroup + 1] - 1);
STORM_LOG_ASSERT(rowGroup < this->getRowGroupCount(), "Row group is out-of-bounds.");
if (!this->hasTrivialRowGrouping()) {
return getRows(this->getRowGroupIndices()[rowGroup], this->getRowGroupIndices()[rowGroup + 1] - 1);
} else {
return getRows(rowGroup, rowGroup + 1);
}
} }
template<typename ValueType> template<typename ValueType>
@ -1113,8 +1158,8 @@ namespace storm {
} }
template<typename ValueType> template<typename ValueType>
bool SparseMatrix<ValueType>::hasNontrivialRowGrouping() const {
return nontrivialRowGrouping;
bool SparseMatrix<ValueType>::hasTrivialRowGrouping() const {
return trivialRowGrouping;
} }
template<typename ValueType> template<typename ValueType>
@ -1143,6 +1188,9 @@ namespace storm {
// Check for matching sizes. // Check for matching sizes.
if (this->getRowCount() != matrix.getRowCount()) return false; if (this->getRowCount() != matrix.getRowCount()) return false;
if (this->getColumnCount() != matrix.getColumnCount()) return false; if (this->getColumnCount() != matrix.getColumnCount()) return false;
if (this->hasTrivialRowGrouping() && !matrix.hasTrivialRowGrouping()) return false;
if (!this->hasTrivialRowGrouping() && matrix.hasTrivialRowGrouping()) return false;
if (!this->hasTrivialRowGrouping() && !matrix.hasTrivialRowGrouping() && this->getRowGroupIndices() != matrix.getRowGroupIndices()) return false;
if (this->getRowGroupIndices() != matrix.getRowGroupIndices()) return false; if (this->getRowGroupIndices() != matrix.getRowGroupIndices()) return false;
// Check the subset property for all rows individually. // Check the subset property for all rows individually.
@ -1174,7 +1222,7 @@ namespace storm {
// Iterate over all row groups. // Iterate over all row groups.
for (typename SparseMatrix<ValueType>::index_type group = 0; group < matrix.getRowGroupCount(); ++group) { for (typename SparseMatrix<ValueType>::index_type group = 0; group < matrix.getRowGroupCount(); ++group) {
out << "\t---- group " << group << "/" << (matrix.getRowGroupCount() - 1) << " ---- " << std::endl; out << "\t---- group " << group << "/" << (matrix.getRowGroupCount() - 1) << " ---- " << std::endl;
for (typename SparseMatrix<ValueType>::index_type i = matrix.getRowGroupIndices()[group]; i < matrix.getRowGroupIndices()[group + 1]; ++i) {
for (typename SparseMatrix<ValueType>::index_type i = matrix.hasTrivialRowGrouping() ? group : matrix.getRowGroupIndices()[group]; i < matrix.hasTrivialRowGrouping() ? group + 1 : matrix.getRowGroupIndices()[group + 1]; ++i) {
typename SparseMatrix<ValueType>::index_type nextIndex = matrix.rowIndications[i]; typename SparseMatrix<ValueType>::index_type nextIndex = matrix.rowIndications[i];
// Print the actual row. // Print the actual row.
@ -1237,7 +1285,9 @@ namespace storm {
boost::hash_combine(result, this->getEntryCount()); boost::hash_combine(result, this->getEntryCount());
boost::hash_combine(result, boost::hash_range(columnsAndValues.begin(), columnsAndValues.end())); boost::hash_combine(result, boost::hash_range(columnsAndValues.begin(), columnsAndValues.end()));
boost::hash_combine(result, boost::hash_range(rowIndications.begin(), rowIndications.end())); boost::hash_combine(result, boost::hash_range(rowIndications.begin(), rowIndications.end()));
boost::hash_combine(result, boost::hash_range(rowGroupIndices.begin(), rowGroupIndices.end()));
if (!this->hasTrivialRowGrouping()) {
boost::hash_combine(result, boost::hash_range(rowGroupIndices.get().begin(), rowGroupIndices.get().end()));
}
return result; return result;
} }

46
src/storage/SparseMatrix.h
View File

@ -7,9 +7,11 @@
#include <vector> #include <vector>
#include <iterator> #include <iterator>
#include <boost/functional/hash.hpp>
#include <boost/optional.hpp>
#include "src/utility/OsDetection.h" #include "src/utility/OsDetection.h"
#include "src/adapters/CarlAdapter.h" #include "src/adapters/CarlAdapter.h"
#include <boost/functional/hash.hpp>
// Forward declaration for adapter classes. // Forward declaration for adapter classes.
namespace storm { namespace storm {
@ -259,7 +261,8 @@ namespace storm {
// The number of row groups in the matrix. // The number of row groups in the matrix.
index_type initialRowGroupCount; index_type initialRowGroupCount;
std::vector<index_type> rowGroupIndices;
// The vector that stores the row-group indices (if they are non-trivial).
boost::optional<std::vector<index_type>> rowGroupIndices;
// The storage for the columns and values of all entries in the matrix. // The storage for the columns and values of all entries in the matrix.
std::vector<MatrixEntry<index_type, value_type>> columnsAndValues; std::vector<MatrixEntry<index_type, value_type>> columnsAndValues;
@ -447,9 +450,8 @@ namespace storm {
* @param rowIndications The row indications vector of the matrix to be constructed. * @param rowIndications The row indications vector of the matrix to be constructed.
* @param columnsAndValues The vector containing the columns and values of the entries in the matrix. * @param columnsAndValues The vector containing the columns and values of the entries in the matrix.
* @param rowGroupIndices The vector representing the row groups in the matrix. * @param rowGroupIndices The vector representing the row groups in the matrix.
* @param hasNontrivialRowGrouping If set to true, this indicates that the row grouping is non-trivial.
*/ */
SparseMatrix(index_type columnCount, std::vector<index_type> const& rowIndications, std::vector<MatrixEntry<index_type, value_type>> const& columnsAndValues, std::vector<index_type> const& rowGroupIndices, bool hasNontrivialRowGrouping);
SparseMatrix(index_type columnCount, std::vector<index_type> const& rowIndications, std::vector<MatrixEntry<index_type, value_type>> const& columnsAndValues, boost::optional<std::vector<index_type>> const& rowGroupIndices);
/*! /*!
* Constructs a sparse matrix by moving the given contents. * Constructs a sparse matrix by moving the given contents.
@ -458,9 +460,8 @@ namespace storm {
* @param rowIndications The row indications vector of the matrix to be constructed. * @param rowIndications The row indications vector of the matrix to be constructed.
* @param columnsAndValues The vector containing the columns and values of the entries in the matrix. * @param columnsAndValues The vector containing the columns and values of the entries in the matrix.
* @param rowGroupIndices The vector representing the row groups in the matrix. * @param rowGroupIndices The vector representing the row groups in the matrix.
* @param hasNontrivialRowGrouping If set to true, this indicates that the row grouping is non-trivial.
*/ */
SparseMatrix(index_type columnCount, std::vector<index_type>&& rowIndications, std::vector<MatrixEntry<index_type, value_type>>&& columnsAndValues, std::vector<index_type>&& rowGroupIndices, bool hasNontrivialRowGrouping);
SparseMatrix(index_type columnCount, std::vector<index_type>&& rowIndications, std::vector<MatrixEntry<index_type, value_type>>&& columnsAndValues, boost::optional<std::vector<index_type>>&& rowGroupIndices);
/*! /*!
* Assigns the contents of the given matrix to the current one by deep-copying its contents. * Assigns the contents of the given matrix to the current one by deep-copying its contents.
@ -913,27 +914,28 @@ namespace storm {
iterator end(); iterator end();
/*! /*!
* Retrieves whether the matrix has a (possibly) non-trivial row grouping.
* Retrieves whether the matrix has a trivial row grouping.
* *
* @return True iff the matrix has a (possibly) non-trivial row grouping.
* @return True iff the matrix has a trivial row grouping.
*/ */
bool hasNontrivialRowGrouping() const;
bool hasTrivialRowGrouping() const;
/*! /*!
* Returns a copy of the matrix with the chosen internal data type * Returns a copy of the matrix with the chosen internal data type
*/ */
template<typename NewValueType> template<typename NewValueType>
SparseMatrix<NewValueType> toValueType() const { SparseMatrix<NewValueType> toValueType() const {
std::vector<MatrixEntry<SparseMatrix::index_type, NewValueType>> new_columnsAndValues;
std::vector<SparseMatrix::index_type> new_rowIndications(rowIndications);
std::vector<SparseMatrix::index_type> new_rowGroupIndices(rowGroupIndices);
std::vector<MatrixEntry<SparseMatrix::index_type, NewValueType>> newColumnsAndValues;
std::vector<SparseMatrix::index_type> newRowIndications(rowIndications);
boost::optional<std::vector<SparseMatrix::index_type>> newRowGroupIndices(rowGroupIndices);
new_columnsAndValues.resize(columnsAndValues.size());
for (size_t i = 0, size = columnsAndValues.size(); i < size; ++i) {
new_columnsAndValues.at(i) = MatrixEntry<SparseMatrix::index_type, NewValueType>(columnsAndValues.at(i).getColumn(), static_cast<NewValueType>(columnsAndValues.at(i).getValue()));
}
newColumnsAndValues.resize(columnsAndValues.size());
std::transform(columnsAndValues.begin(), columnsAndValues.end(), newColumnsAndValues.begin(),
[] (MatrixEntry<SparseMatrix::index_type, ValueType> const& a) {
return MatrixEntry<SparseMatrix::index_type, NewValueType>(a.getColumn(), static_cast<NewValueType>(a.getValue()));
});
return SparseMatrix<NewValueType>(columnCount, std::move(new_rowIndications), std::move(new_columnsAndValues), std::move(new_rowGroupIndices), nontrivialRowGrouping);
return SparseMatrix<NewValueType>(columnCount, std::move(newRowIndications), std::move(newColumnsAndValues), std::move(newRowGroupIndices));
} }
private: private:
@ -972,12 +974,12 @@ namespace storm {
// entry is not included anymore. // entry is not included anymore.
std::vector<index_type> rowIndications; std::vector<index_type> rowIndications;
// A flag that indicates whether the matrix has a non-trivial row-grouping, i.e. (possibly) more than one
// row per row group.
bool nontrivialRowGrouping;
// A flag indicating whether the matrix has a trivial row grouping. Note that this may be true and yet
// there may be row group indices, because they were requested from the outside.
bool trivialRowGrouping;
// A vector indicating the row groups of the matrix.
std::vector<index_type> rowGroupIndices;
// A vector indicating the row groups of the matrix. This needs to be mutible in case we create it on-the-fly.
mutable boost::optional<std::vector<index_type>> rowGroupIndices;
}; };

Write Preview
Loading…
Cancel
Save