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Revising the function stablizeNewton().

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For the SOR type relaxation, we need the dx from the previous iteration.
This commit is contained in:
Kai Bao 2014-05-20 11:25:04 +02:00
parent 5b6c325a32
commit 8dcae05a7b
2 changed files with 25 additions and 5 deletions
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2
opm/autodiff/FullyImplicitBlackoilSolver.hpp
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@ -276,7 +276,7 @@ namespace Opm {
const int it, const double relaxRelTol, const int it, const double relaxRelTol,
bool &oscillate, bool &stagnate ) const; bool &oscillate, bool &stagnate ) const;
void stablizeNewton(V &dx, const bool &oscillate, const bool &stagnate, const double omega, void stablizeNewton(V &dx, V &dxOld, const bool &oscillate, const bool &stagnate, const double omega,
const RelaxType relax_type) const; const RelaxType relax_type) const;
}; };

28
opm/autodiff/FullyImplicitBlackoilSolver_impl.hpp
View File

@ -278,8 +278,25 @@ namespace {
<< std::setw(9) << it << std::setprecision(9) << std::setw(9) << it << std::setprecision(9)
<< std::setw(18) << r0 << std::endl; << std::setw(18) << r0 << std::endl;
// compute the size of the linear system
int linearSize = 0;
std::vector<ADB>::const_iterator massBalanceIt = residual_.material_balance_eq.begin();
const std::vector<ADB>::const_iterator endMassBalanceIt = residual_.material_balance_eq.end();
for (; massBalanceIt != endMassBalanceIt; ++massBalanceIt) {
linearSize += (*massBalanceIt).size();
}
linearSize += residual_.well_flux_eq.size();
linearSize += residual_.well_eq.size();
std::cout << " the size of the linear system is " << linearSize << std::endl;
std::cin.ignore();
V dxOld = V::Zero(linearSize);
while ((!converged) && (it < maxit)) { while ((!converged) && (it < maxit)) {
const V dx = solveJacobianSystem(); V dx = solveJacobianSystem();
updateState(dx, x, xw); updateState(dx, x, xw);
@ -1707,9 +1724,12 @@ namespace {
template<class T> template<class T>
void void
FullyImplicitBlackoilSolver<T>::stablizeNewton( V &dx, const bool &oscillate, const bool &stagnate, FullyImplicitBlackoilSolver<T>::stablizeNewton( V &dx, V &dxOld, const bool &oscillate, const bool &stagnate,
const double omega, const RelaxType relax_type) const { const double omega, const RelaxType relax_type) const {
const V tempDxOld = dxOld;
dxOld = dx;
switch (relax_type) { switch (relax_type) {
case DAMPEN: case DAMPEN:
if (omega == 1.) { if (omega == 1.) {
@ -1721,8 +1741,8 @@ namespace {
if (omega == 1.) { if (omega == 1.) {
return; return;
} }
const V dxold = dx; // const V dxold = dx;
dx = dx*omega + (1.-omega)*dxold; dx = dx*omega + (1.-omega)*tempDxOld;
return; return;
default: default:
OPM_THROW(std::runtime_error, "Can only handle DAMPEN and SOR relaxation type."); OPM_THROW(std::runtime_error, "Can only handle DAMPEN and SOR relaxation type.");