/// <summary>
/// Updating the <see cref="CurrentLin"/> -- operator;
/// </summary>
/// <param name="CurrentState">linearization point</param>
protected void Update(IEnumerable <DGField> CurrentState)
{
if (!(this.ProblemMapping.BasisS.Count == CurrentState.Count()))
{
throw new ArgumentException("missmatch in number of fields.");
}
BlockMsrMatrix OpMtxRaw, MassMtxRaw;
double[] OpAffineRaw;
this.m_AssembleMatrix(out OpMtxRaw, out OpAffineRaw, out MassMtxRaw, CurrentState.ToArray());
CurrentLin = new MultigridOperator(this.m_AggBasisSeq, this.ProblemMapping,
OpMtxRaw.CloneAs(), MassMtxRaw,
this.m_MultigridOperatorConfig);
OpAffineRaw = OpAffineRaw.CloneAs();
if (this.RHSRaw != null)
{
OpAffineRaw.AccV(-1.0, this.RHSRaw);
}
if (LinearizationRHS == null || LinearizationRHS.Length != this.CurrentLin.Mapping.LocalLength)
{
LinearizationRHS = new double[this.CurrentLin.Mapping.LocalLength];
}
else
{
LinearizationRHS.ClearEntries();
}
CurrentLin.TransformRhsInto(OpAffineRaw, this.LinearizationRHS);
this.LinearizationRHS.ScaleV(-1.0);
}
/// <summary>
/// Updating the <see cref="CurrentLin"/> -- operator;
/// </summary>
/// <param name="CurrentState">linearization point</param>
/// <param name="HomotopyValue">
/// <see cref="ISpatialOperator.CurrentHomotopyValue"/>
/// </param>
protected void UpdateLinearization(IEnumerable <DGField> CurrentState, double HomotopyValue)
{
if (!(this.ProblemMapping.BasisS.Count == CurrentState.Count()))
{
throw new ArgumentException("mismatch in number of fields.");
}
SetHomotopyValue(HomotopyValue);
// the real call:
this.m_AssembleMatrix(out BlockMsrMatrix OpMtxRaw, out double[] OpAffineRaw, out BlockMsrMatrix MassMtxRaw, CurrentState.ToArray(), true, out ISpatialOperator abstractOperator);
AbstractOperator = abstractOperator;
// blabla:
CurrentLin = new MultigridOperator(this.m_AggBasisSeq, this.ProblemMapping,
OpMtxRaw.CloneAs(), MassMtxRaw,
this.m_MultigridOperatorConfig,
AbstractOperator.DomainVar.Select(varName => AbstractOperator.FreeMeanValue[varName]).ToArray());
OpAffineRaw = OpAffineRaw.CloneAs();
if (this.RHSRaw != null)
{
OpAffineRaw.AccV(-1.0, this.RHSRaw);
}
if (LinearizationRHS == null || LinearizationRHS.Length != this.CurrentLin.Mapping.LocalLength)
{
LinearizationRHS = new double[this.CurrentLin.Mapping.LocalLength];
}
else
{
LinearizationRHS.ClearEntries();
}
CurrentLin.TransformRhsInto(OpAffineRaw, this.LinearizationRHS, true);
this.LinearizationRHS.ScaleV(-1.0);
}
