Template Function Pennylane::Util::write_CSR_vectors

• Defined in File TestHelpers.hpp

Function Documentation

template<class ComplexT, class IndexT>
void Pennylane::Util::write_CSR_vectors(std::vector<IndexT> &row_map, std::vector<IndexT> &entries, std::vector<ComplexT> &values, IndexT numRows)

Fills the empty vectors with the CSR (Compressed Sparse Row) sparse matrix representation for a tri-diagonal + periodic boundary conditions Hamiltonian.

Template Parameters

• PrecisionT – data float point precision.

• IndexT – integer type used as indices of the sparse matrix.

Parameters

• row_map – the j element encodes the total number of non-zeros above row j.

• entries – column indices.

• values – matrix non-zero elements.

• numRows – matrix number of rows.

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