static_condensation_utility.h

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// KRATOS  ___|  |                   |                   |
//       \___ \  __|  __| |   |  __| __| |   |  __| _` | |
//             | |   |    |   | (    |   |   | |   (   | |
//       _____/ \__|_|   \__,_|\___|\__|\__,_|_|  \__,_|_| MECHANICS
//
//  License:         BSD License
//                   license: StructuralMechanicsApplication/license.txt
//
//  Main authors:    Klauss B Sautter
//                   Philipp Bucher
//
 
#pragma once
 
 
// System includes
 
 
// External includes
 
 
// Project includes
#include "includes/define.h"
#include "utilities/math_utils.h"
 
 
namespace Kratos
{
 
    namespace StaticCondensationUtility
    {
        typedef Element ElementType;
        typedef std::size_t SizeType;
        typedef Matrix MatrixType;
 
        void CondenseLeftHandSide(
            ElementType& rTheElement,
            MatrixType& rLeftHandSideMatrix,
            const std::vector<int> & rDofList);
 
        std::vector<MatrixType> CalculateSchurComplements(
            ElementType& rTheElement,
            const MatrixType& rLeftHandSideMatrix,
            const std::vector<int> & rDofList);
 
        std::vector<int> CreateRemainingDofList(
            ElementType& rTheElement,
            const std::vector<int> & rDofList);
 
        void FillSchurComplements(
            MatrixType& Submatrix,
            const MatrixType& rLeftHandSideMatrix,
            const std::vector<int>& rVecA,
            const std::vector<int>& rVecB,
            const SizeType& rSizeA,
            const SizeType& rSizeB); //maybe inline
 
        void ConvertingCondensation(
            ElementType& rTheElement,
            Vector& rLocalizedDofVector,
            Vector& rValues,
            const std::vector<int>& rDofList,
            const MatrixType& rLeftHandSideMatrix);
 
        SizeType GetNumDofsElement(const ElementType& rTheElement);
 
    }  // namespace StaticCondensationUtility
 
}  // namespace Kratos.