/usr/include/trilinos/Stokhos_SchurPreconditioner.hpp is in libtrilinos-stokhos-dev 12.4.2-2.
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#ifndef STOKHOS_SCHURPRECONDITIONER_HPP
#define STOKHOS_SCHURPRECONDITIONER_HPP
#include "Teuchos_RCP.hpp"
#include "Stokhos_Operator.hpp"
#include "Teuchos_SerialDenseMatrix.hpp"
namespace Stokhos {
template <typename ordinal_type, typename value_type>
class SchurPreconditioner :
public Stokhos::Operator<ordinal_type, value_type> {
public:
//! Constructor
SchurPreconditioner(
const Teuchos::SerialDenseMatrix<ordinal_type,value_type> & K,
const ordinal_type p, const ordinal_type m, const ordinal_type diag);
//! Destructor
virtual ~SchurPreconditioner();
virtual ordinal_type ApplyInverse(
const Teuchos::SerialDenseMatrix<ordinal_type, value_type>& Input,
Teuchos::SerialDenseMatrix<ordinal_type, value_type>& Result,
ordinal_type prec_iters) const;
protected:
ordinal_type fact(ordinal_type n) const;
ordinal_type size(ordinal_type n, ordinal_type m) const;
const Teuchos::SerialDenseMatrix<ordinal_type,value_type> & K;
const ordinal_type p;
const ordinal_type m;
const ordinal_type diag;
}; // class SchurPreconditioner
} // namespace Stokhos
#include "Stokhos_SchurPreconditionerImp.hpp"
#endif // STOKHOS_SCHURPRECONDITIONER_HPP
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