void Foam::steadyStateControl::maxTypeResidual
(
const word& fieldName,
ITstream& data,
scalar& firstRes,
scalar& lastRes
) const
{
typedef GeometricField<Type, fvPatchField, volMesh> fieldType;
if (mesh_.foundObject<fieldType>(fieldName))
{
//fieldType& pointVelocity = const_cast<fieldType&>(
// mesh_.objectRegistry::lookupObject<fieldType>( fieldName )
//);
fieldType& field = const_cast<fieldType&>(
mesh_.lookupObject<fieldType>( fieldName )
);
const List<SolverPerformance<Type> > sp(data);
int sz = field.size();
reduce(sz, sumOp<int>());
Type nF = gSumCmptProd( field, field ) / static_cast<double>(sz);
//Type finiR = sp.first().initialResidual();
//Type liniR = sp.last().initialResidual();
//
scalar norm = mag(nF);
for (direction cmpt=0; cmpt < nF.size(); cmpt++){
nF[cmpt] = sqrt( nF[cmpt] );
//finiR[cmpt] *= tmpNF;
//liniR[cmpt] *= tmpNF;
}
nF = nF/norm;
//finiR /= norm;
//liniR /= norm;
//firstRes = cmptMax(finiR);
//lastRes = cmptMax(liniR);
//
firstRes = cmptMax( cmptMultiply(sp.first().initialResidual(), nF) );
lastRes = cmptMax( cmptMultiply(sp.last().initialResidual(), nF) );
//firstRes = cmptMax(sp.first().initialResidual());
//lastRes = cmptMax(sp.last().initialResidual());
}
}
Foam::faceAreaPairGAMGAgglomeration::faceAreaPairGAMGAgglomeration
(
const lduMesh& mesh,
const scalarField& cellVolumes,
const vectorField& faceAreas,
const dictionary& controlDict
)
:
pairGAMGAgglomeration(mesh, controlDict)
{
// agglomerate(mesh, sqrt(mag(faceAreas)));
agglomerate
(
mesh,
mag
(
cmptMultiply
(
faceAreas
/sqrt(mag(faceAreas)),
vector(1, 1.01, 1.02)
// vector::one
)
)
);
}
vector horizontalVelocityField::streamfunctionAt
(
const point& p,
const Time& t
) const
{
const vector unitNormal(0, -1, 0);
const dimensionedScalar z("z", dimLength, p.z());
dimensionedScalar psi("psi", cmptMultiply(dimVelocity, dimLength), scalar(0));
if (z.value() <= z1.value())
{
// psi is zero
}
else if (z.value() <= z2.value())
{
psi = -0.5*u0*(z - z1 - (z2-z1)/M_PI*Foam::sin(M_PI*(z-z1)/(z2-z1)));
}
else
{
psi = -0.5*u0*(2*z - z2 - z1);
}
return unitNormal * psi.value();
}
bool Foam::SolverPerformance<Type>::checkConvergence
(
const Type& Tolerance,
const Type& RelTolerance
)
{
if (debug >= 2)
{
Info<< solverName_
<< ": Iteration " << nIterations_
<< " residual = " << finalResidual_
<< endl;
}
if
(
finalResidual_ < Tolerance
|| (
RelTolerance
> small_*pTraits<Type>::one
&& finalResidual_ < cmptMultiply(RelTolerance, initialResidual_)
)
)
{
converged_ = true;
}
else
{
converged_ = false;
}
return converged_;
}
Foam::tmp<Foam::Field<Type>>
Foam::transformFvPatchField<Type>::gradientBoundaryCoeffs() const
{
return
snGrad()
- cmptMultiply(gradientInternalCoeffs(), this->patchInternalField());
}
Foam::faceAreaPairGAMGAgglomeration::faceAreaPairGAMGAgglomeration
(
const lduMesh& mesh,
const dictionary& controlDict
)
:
pairGAMGAgglomeration(mesh, controlDict)
{
const fvMesh& fvmesh = refCast<const fvMesh>(mesh);
//agglomerate(mesh, sqrt(fvmesh.magSf().internalField()));
agglomerate
(
mesh,
mag
(
cmptMultiply
(
fvmesh.Sf().internalField()
/sqrt(fvmesh.magSf().internalField()),
vector(1, 1.01, 1.02)
//vector::one
)
)
);
}
void Foam::directionalDiffusivity::correct()
{
const fvMesh& mesh = mSolver().mesh();
surfaceVectorField n = mesh.Sf()/mesh.magSf();
faceDiffusivity_ == (n & cmptMultiply(diffusivityVector_, n));
}
void Foam::displacementMotionSolver::updateMesh(const mapPolyMesh& mpm)
{
// pointMesh already updates pointFields
motionSolver::updateMesh(mpm);
// Map points0_. Bit special since we somehow have to come up with
// a sensible points0 position for introduced points.
// Find out scaling between points0 and current points
// Get the new points either from the map or the mesh
const pointgpuField& points =
(
mpm.hasMotionPoints()
? mpm.preMotionPoints()
: mesh().points()
);
// Note: boundBox does reduce
const vector span0 = boundBox(points0_).span();
const vector span = boundBox(points).span();
vector scaleFactors(cmptDivide(span0, span));
pointField newPoints0(mpm.pointMap().size());
forAll(newPoints0, pointI)
{
label oldPointI = mpm.pointMap()[pointI];
if (oldPointI >= 0)
{
label masterPointI = mpm.reversePointMap()[oldPointI];
if (masterPointI == pointI)
{
newPoints0[pointI] = points0_[oldPointI];
}
else
{
// New point - assume motion is scaling
newPoints0[pointI] = points0_[oldPointI] + cmptMultiply
(
scaleFactors,
points[pointI] - points[masterPointI]
);
}
}
else
{
FatalErrorIn
(
"displacementMotionSolver::updateMesh"
"(const mapPolyMesh&)"
) << "Cannot determine co-ordinates of introduced vertices."
<< " New vertex " << pointI << " at co-ordinate "
<< points[pointI] << exit(FatalError);
}
}
Type projection
(
const GeometricField<Type, fvPatchField, volMesh>& a,
const GeometricField<Type, fvPatchField, volMesh>& b
)
{
return sum(cmptMultiply(a.internalField(), b.internalField()));
}
tmp<Field<Type> > transformFaPatchField<Type>::valueBoundaryCoeffs
(
const tmp<scalarField>&
) const
{
return
*this
- cmptMultiply
(
valueInternalCoeffs(this->patch().weights()),
this->patchInternalField()
);
}
void implicitExtrapolationFvPatchField<Type>::updateCoeffs(){
Field<Type>& boundaryField = *this; // will be set from old time-step
const Field<Type>& internalField = this->internalField();
const fvMesh& m = this->patch().boundaryMesh().mesh();
const scalarField& d1 = this->patch().deltaCoeffs();
const scalarField& d2 = secondDeltas;
const scalarField d1_dividedBy_d2 = (1/d1)/d2;
const Field<Type> oneField = Field<Type>(this->size(), pTraits<Type>::one);
const labelList& faceCells = this->patch().faceCells();
internalCoeffsDiag = (1 + d1_dividedBy_d2 ) * oneField;
forAll(boundaryField, i){
if(secondNormalCellIsOwner[i]){
internalCoeffsLower[i] = - d1_dividedBy_d2[i] * oneField[i];
internalCoeffsUpper[i] = 0 * oneField[i];
const label boundaryCell = faceCells[i];
const label secondCell = m.owner()[secondFaces()[i]];
boundaryField[i] = cmptMultiply(internalCoeffsDiag[i],internalField[boundaryCell])
+ cmptMultiply(internalCoeffsLower[i],internalField[secondCell]);
}
else{
internalCoeffsLower[i] = 0 * oneField[i];
internalCoeffsUpper[i] = - d1_dividedBy_d2[i] * oneField[i];
const label boundaryCell = faceCells[i];
const label secondCell = m.neighbour()[secondFaces()[i]];
boundaryField[i] = cmptMultiply(internalCoeffsDiag[i],internalField[boundaryCell])
+ cmptMultiply(internalCoeffsUpper[i],internalField[secondCell]);
}
}
fvPatchField<Type>::updateCoeffs();
}
void Foam::processorBlockGAMGInterfaceField<Type>::updateInterfaceMatrix
(
const Field<Type>& psiInternal,
Field<Type>& result,
const BlockLduMatrix<Type>&,
const CoeffField<Type>& coeffs,
const Pstream::commsTypes commsType,
const bool switchToLhs
) const
{
Field<Type> pnf
(
coeffs.size()
);
if (coeffs.activeType() == blockCoeffBase::SCALAR)
{
pnf = coeffs.asScalar()*
procInterface_.compressedReceive<Type>(commsType, this->size())();
}
else if (coeffs.activeType() == blockCoeffBase::LINEAR)
{
pnf = cmptMultiply
(
coeffs.asLinear(),
procInterface_.compressedReceive<Type>(commsType, this->size())()
);
}
else if (coeffs.activeType() == blockCoeffBase::SQUARE)
{
pnf = coeffs.asSquare() &
procInterface_.compressedReceive<Type>(commsType, this->size())();
}
const unallocLabelList& faceCells = procInterface_.faceCells();
if (switchToLhs)
{
forAll(faceCells, elemI)
{
result[faceCells[elemI]] += pnf[elemI];
}
}
else
{
void Foam::motionDirectionalDiffusivity::correct()
{
const fvMesh& mesh = mSolver().mesh();
static bool first = true;
if (!first)
{
const volVectorField& cellMotionU =
mesh.lookupObject<volVectorField>("cellMotionU");
volVectorField D
(
IOobject
(
"D",
mesh.time().timeName(),
mesh
),
diffusivityVector_.y()*vector::one
+ (diffusivityVector_.x() - diffusivityVector_.y())*cellMotionU
/(mag(cellMotionU) + dimensionedScalar("small", dimVelocity, SMALL)),
zeroGradientFvPatchVectorField::typeName
);
D.correctBoundaryConditions();
surfaceVectorField n = mesh.Sf()/mesh.magSf();
faceDiffusivity_ == (n & cmptMultiply(fvc::interpolate(D), n));
}
else
{
first = false;
const_cast<fvMotionSolver&>(mSolver()).solve();
correct();
}
}
typename Foam::SolverPerformance<Type>
Foam::PCICG<Type, DType, LUType>::solve(Field<Type>& psi) const
{
word preconditionerName(this->controlDict_.lookup("preconditioner"));
// --- Setup class containing solver performance data
SolverPerformance<Type> solverPerf
(
preconditionerName + typeName,
this->fieldName_
);
label nCells = psi.size();
Type* __restrict__ psiPtr = psi.begin();
Field<Type> pA(nCells);
Type* __restrict__ pAPtr = pA.begin();
Field<Type> wA(nCells);
Type* __restrict__ wAPtr = wA.begin();
Type wArA = solverPerf.great_*pTraits<Type>::one;
Type wArAold = wArA;
// --- Calculate A.psi
this->matrix_.Amul(wA, psi);
// --- Calculate initial residual field
Field<Type> rA(this->matrix_.source() - wA);
Type* __restrict__ rAPtr = rA.begin();
// --- Calculate normalisation factor
Type normFactor = this->normFactor(psi, wA, pA);
if (LduMatrix<Type, DType, LUType>::debug >= 2)
{
Info<< " Normalisation factor = " << normFactor << endl;
}
// --- Calculate normalised residual norm
solverPerf.initialResidual() = cmptDivide(gSumCmptMag(rA), normFactor);
solverPerf.finalResidual() = solverPerf.initialResidual();
// --- Check convergence, solve if not converged
if
(
this->minIter_ > 0
|| !solverPerf.checkConvergence(this->tolerance_, this->relTol_)
)
{
// --- Select and construct the preconditioner
autoPtr<typename LduMatrix<Type, DType, LUType>::preconditioner>
preconPtr = LduMatrix<Type, DType, LUType>::preconditioner::New
(
*this,
this->controlDict_
);
// --- Solver iteration
do
{
// --- Store previous wArA
wArAold = wArA;
// --- Precondition residual
preconPtr->precondition(wA, rA);
// --- Update search directions:
wArA = gSumCmptProd(wA, rA);
if (solverPerf.nIterations() == 0)
{
for (label cell=0; cell<nCells; cell++)
{
pAPtr[cell] = wAPtr[cell];
}
}
else
{
Type beta = cmptDivide
(
wArA,
stabilise(wArAold, solverPerf.vsmall_)
);
for (label cell=0; cell<nCells; cell++)
{
pAPtr[cell] = wAPtr[cell] + cmptMultiply(beta, pAPtr[cell]);
}
}
// --- Update preconditioned residual
this->matrix_.Amul(wA, pA);
Type wApA = gSumCmptProd(wA, pA);
// --- Test for singularity
if
(
solverPerf.checkSingularity
(
cmptDivide(cmptMag(wApA), normFactor)
)
)
{
break;
}
// --- Update solution and residual:
Type alpha = cmptDivide
(
wArA,
stabilise(wApA, solverPerf.vsmall_)
);
for (label cell=0; cell<nCells; cell++)
{
psiPtr[cell] += cmptMultiply(alpha, pAPtr[cell]);
rAPtr[cell] -= cmptMultiply(alpha, wAPtr[cell]);
}
solverPerf.finalResidual() =
cmptDivide(gSumCmptMag(rA), normFactor);
} while
(
(
solverPerf.nIterations()++ < this->maxIter_
&& !solverPerf.checkConvergence(this->tolerance_, this->relTol_)
)
|| solverPerf.nIterations() < this->minIter_
);
}
return solverPerf;
}
void Foam::directionalDiffusivity::correct()
{
const surfaceVectorField n(mesh().Sf()/mesh().magSf());
faceDiffusivity_ == (n & cmptMultiply(diffusivityVector_, n));
}
void Foam::displacementSBRStressFvMotionSolver::updateMesh
(
const mapPolyMesh& mpm
)
{
fvMotionSolver::updateMesh(mpm);
// Map points0_
// Map points0_. Bit special since we somehow have to come up with
// a sensible points0 position for introduced points.
// Find out scaling between points0 and current points
// Get the new points either from the map or the mesh
const pointField& points =
(
mpm.hasMotionPoints()
? mpm.preMotionPoints()
: fvMesh_.points()
);
// Note: boundBox does reduce
const boundBox bb0(points0_, true);
const vector span0(bb0.max()-bb0.min());
const boundBox bb(points, true);
const vector span(bb.max()-bb.min());
vector scaleFactors(cmptDivide(span0, span));
pointField newPoints0(mpm.pointMap().size());
forAll(newPoints0, pointI)
{
label oldPointI = mpm.pointMap()[pointI];
if (oldPointI >= 0)
{
label masterPointI = mpm.reversePointMap()[oldPointI];
if (masterPointI == pointI)
{
newPoints0[pointI] = points0_[oldPointI];
}
else
{
// New point. Assume motion is scaling.
newPoints0[pointI] =
points0_[oldPointI]
+ cmptMultiply
(
scaleFactors,
points[pointI]-points[masterPointI]
);
}
}
else
{
FatalErrorIn
(
"displacementSBRStressFvMotionSolver::updateMesh"
"(const mapPolyMesh& mpm)"
) << "Cannot work out coordinates of introduced vertices."
<< " New vertex " << pointI << " at coordinate "
<< points[pointI] << exit(FatalError);
}
}
void Foam::searchableSurfaceCollection::findNearest
(
const pointField& samples,
scalarField& minDistSqr,
List<pointIndexHit>& nearestInfo,
labelList& nearestSurf
) const
{
// Initialise
nearestInfo.setSize(samples.size());
nearestInfo = pointIndexHit();
nearestSurf.setSize(samples.size());
nearestSurf = -1;
List<pointIndexHit> hitInfo(samples.size());
const scalarField localMinDistSqr(samples.size(), GREAT);
forAll(subGeom_, surfI)
{
subGeom_[surfI].findNearest
(
cmptDivide // Transform then divide
(
transform_[surfI].localPosition(samples),
scale_[surfI]
),
localMinDistSqr,
hitInfo
);
forAll(hitInfo, pointI)
{
if (hitInfo[pointI].hit())
{
// Rework back into global coordinate sys. Multiply then
// transform
point globalPt = transform_[surfI].globalPosition
(
cmptMultiply
(
hitInfo[pointI].rawPoint(),
scale_[surfI]
)
);
scalar distSqr = magSqr(globalPt - samples[pointI]);
if (distSqr < minDistSqr[pointI])
{
minDistSqr[pointI] = distSqr;
nearestInfo[pointI].setPoint(globalPt);
nearestInfo[pointI].setHit();
nearestInfo[pointI].setIndex
(
hitInfo[pointI].index()
+ indexOffset_[surfI]
);
nearestSurf[pointI] = surfI;
}
}
}
}
int main(int argc, char *argv[])
{
# include "setRootCase.H"
# include "createTime.H"
// Get times list
instantList Times = runTime.times();
const label startTime = 1;
const label endTime = Times.size();
const label nSnapshots = Times.size() - 1;
Info << "Number of snapshots: " << nSnapshots << endl;
// Create a list of snapshots
PtrList<volVectorField> fields(nSnapshots);
runTime.setTime(Times[startTime], startTime);
# include "createMesh.H"
IOdictionary PODsolverDict
(
IOobject
(
"PODsolverDict",
runTime.system(),
mesh,
IOobject::MUST_READ,
IOobject::NO_WRITE
)
);
scalar accuracy =
readScalar
(
PODsolverDict.subDict("scalarTransportCoeffs").lookup("accuracy")
);
Info << "Seeking accuracy: " << accuracy << endl;
word fieldName
(
PODsolverDict.subDict("scalarTransportCoeffs").lookup("velocity")
);
label snapI = 0;
labelList timeIndices(nSnapshots);
for (label i = startTime; i < endTime; i++)
{
runTime.setTime(Times[i], i);
Info<< "Time = " << runTime.timeName() << endl;
mesh.readUpdate();
Info<< " Reading " << fieldName << endl;
fields.set
(
snapI,
new volVectorField
(
IOobject
(
fieldName,
runTime.timeName(),
mesh,
IOobject::MUST_READ
),
mesh
)
);
// Rename the field
fields[snapI].rename(fieldName + name(i));
timeIndices[snapI] = i;
snapI++;
Info<< endl;
}
timeIndices.setSize(snapI);
vectorPODOrthoNormalBase eb(fields, accuracy);
const RectangularMatrix<vector>& coeffs = eb.interpolationCoeffs();
// Check all snapshots
forAll (fields, fieldI)
{
runTime.setTime(Times[timeIndices[fieldI]], timeIndices[fieldI]);
volVectorField reconstruct
(
IOobject
(
fieldName + "PODreconstruct",
runTime.timeName(),
mesh,
IOobject::NO_READ
),
mesh,
dimensionedVector
(
"zero",
fields[fieldI].dimensions(),
vector::zero
)
);
for (label baseI = 0; baseI < eb.baseSize(); baseI++)
{
reconstruct +=
cmptMultiply
(
eb.orthoField(baseI),
coeffs[fieldI][baseI]
);
}
scalar sumFieldError =
sumMag
(
reconstruct.internalField()
- fields[fieldI].internalField()
);
scalar measure = sumMag(fields[fieldI].internalField()) + SMALL;
Info<< "Field error: absolute = " << sumFieldError << " relative = "
<< sumFieldError/measure << " measure = " << measure
<< endl;
reconstruct.write();
}
