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54 lines
1.5 KiB
54 lines
1.5 KiB
/*
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* GmmxxAdapter.h
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*
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* Created on: 24.12.2012
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* Author: Christian Dehnert
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*/
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#ifndef STORM_ADAPTERS_GMMXXADAPTER_H_
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#define STORM_ADAPTERS_GMMXXADAPTER_H_
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#include "src/storage/SparseMatrix.h"
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#include "log4cplus/logger.h"
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#include "log4cplus/loggingmacros.h"
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extern log4cplus::Logger logger;
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namespace storm {
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namespace adapters {
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class GmmxxAdapter {
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public:
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/*!
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* Converts a sparse matrix into the sparse matrix in the gmm++ format.
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* @return A pointer to a column-major sparse matrix in gmm++ format.
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*/
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template<class T>
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static gmm::csr_matrix<T>* toGmmxxSparseMatrix(storm::storage::SparseMatrix<T> const& matrix) {
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uint_fast64_t realNonZeros = matrix.getNonZeroEntryCount();
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LOG4CPLUS_DEBUG(logger, "Converting matrix with " << realNonZeros << " non-zeros to gmm++ format.");
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// Prepare the resulting matrix.
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gmm::csr_matrix<T>* result = new gmm::csr_matrix<T>(matrix.rowCount, matrix.rowCount);
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// Copy Row Indications
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std::copy(matrix.rowIndications.begin(), matrix.rowIndications.end(), std::back_inserter(result->jc));
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// Copy Columns Indications
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result->ir.resize(realNonZeros);
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std::copy(matrix.columnIndications.begin(), matrix.columnIndications.end(), std::back_inserter(result->ir));
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// And do the same thing with the actual values.
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std::copy(matrix.valueStorage.begin(), matrix.valueStorage.end(), std::back_inserter(result->pr));
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LOG4CPLUS_DEBUG(logger, "Done converting matrix to gmm++ format.");
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return result;
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}
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};
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} //namespace adapters
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} //namespace storm
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#endif /* STORM_ADAPTERS_GMMXXADAPTER_H_ */
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