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CHanges made to SchurRB solvers to allow for the subtraction of a guess after solve

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This commit is contained in:
fionnoh
2018-05-31 17:16:20 +01:00
parent 200d35b38a
commit f4c6d39238
2 changed files with 92 additions and 10 deletions
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4
lib/algorithms/iterative/Deflation.h
View File

@@ -63,7 +63,7 @@ public:
DeflatedGuesser(const std::vector<Field> & _evec,const std::vector<RealD> & _eval) : evec(_evec), eval(_eval) {};
virtual void operator()(const Field &src,Field &guess) {
virtual void operator()(const Field &src,Field &guess) {
guess = zero;
assert(evec.size()==eval.size());
auto N = evec.size();
@@ -71,6 +71,7 @@ public:
const Field& tmp = evec[i];
axpy(guess,TensorRemove(innerProduct(tmp,src)) / eval[i],tmp,guess);
}
guess.checkerboard = src.checkerboard;
}
};
@@ -101,6 +102,7 @@ public:
axpy(guess_coarse,TensorRemove(innerProduct(tmp,src_coarse)) / eval_coarse[i],tmp,guess_coarse);
}
blockPromote(guess_coarse,guess,subspace);
guess.checkerboard = src.checkerboard;
};
};

98
lib/algorithms/iterative/SchurRedBlack.h
View File

@@ -95,16 +95,26 @@ namespace Grid {
private:
OperatorFunction<Field> & _HermitianRBSolver;
int CBfactorise;
bool subGuess;
public:
/////////////////////////////////////////////////////
// Wrap the usual normal equations Schur trick
/////////////////////////////////////////////////////
SchurRedBlackStaggeredSolve(OperatorFunction<Field> &HermitianRBSolver) :
SchurRedBlackStaggeredSolve(OperatorFunction<Field> &HermitianRBSolver, const bool initSubGuess = false) :
_HermitianRBSolver(HermitianRBSolver)
{
CBfactorise=0;
subtractGuess(initSubGuess);
};
void subtractGuess(const bool initSubGuess)
{
subGuess = initSubGuess;
}
bool isSubtractGuess(void)
{
return subGuess;
}
template<class Matrix>
void operator() (Matrix & _Matrix,const Field &in, Field &out){
@@ -151,7 +161,17 @@ namespace Grid {
//////////////////////////////////////////////////////////////
std::cout<<GridLogMessage << "SchurRedBlackStaggeredSolver calling the Mpc solver" <<std::endl;
guess(src_o,sol_o);
_HermitianRBSolver(_HermOpEO,src_o,sol_o); assert(sol_o.checkerboard==Odd);
if (subGuess)
{
std::cout << GridLogMessage << "Subtracting guess after solve" << std::endl;
Mtmp = sol_o;
_HermitianRBSolver(_HermOpEO,src_o,sol_o); assert(sol_o.checkerboard==Odd);
sol_o = sol_o - Mtmp;
}
else
{
_HermitianRBSolver(_HermOpEO,src_o,sol_o); assert(sol_o.checkerboard==Odd);
}
std::cout<<GridLogMessage << "SchurRedBlackStaggeredSolver called the Mpc solver" <<std::endl;
///////////////////////////////////////////////////
@@ -184,15 +204,25 @@ namespace Grid {
private:
OperatorFunction<Field> & _HermitianRBSolver;
int CBfactorise;
bool subGuess;
public:
/////////////////////////////////////////////////////
// Wrap the usual normal equations Schur trick
/////////////////////////////////////////////////////
SchurRedBlackDiagMooeeSolve(OperatorFunction<Field> &HermitianRBSolver,int cb=0) : _HermitianRBSolver(HermitianRBSolver)
SchurRedBlackDiagMooeeSolve(OperatorFunction<Field> &HermitianRBSolver,int cb=0, const bool initSubGuess = false) : _HermitianRBSolver(HermitianRBSolver)
{
CBfactorise=cb;
subtractGuess(initSubGuess);
};
void subtractGuess(const bool initSubGuess)
{
subGuess = initSubGuess;
}
bool isSubtractGuess(void)
{
return subGuess;
}
template<class Matrix>
void operator() (Matrix & _Matrix,const Field &in, Field &out){
ZeroGuesser<Field> guess;
@@ -236,7 +266,17 @@ namespace Grid {
//////////////////////////////////////////////////////////////
std::cout<<GridLogMessage << "SchurRedBlack solver calling the MpcDagMp solver" <<std::endl;
guess(src_o,sol_o);
_HermitianRBSolver(_HermOpEO,src_o,sol_o); assert(sol_o.checkerboard==Odd);
if (subGuess)
{
std::cout << GridLogMessage << "Subtracting guess after solve" << std::endl;
Mtmp = sol_o;
_HermitianRBSolver(_HermOpEO,src_o,sol_o); assert(sol_o.checkerboard==Odd);
sol_o = sol_o - Mtmp;
}
else
{
_HermitianRBSolver(_HermOpEO,src_o,sol_o); assert(sol_o.checkerboard==Odd);
}
///////////////////////////////////////////////////
// sol_e = M_ee^-1 * ( src_e - Meo sol_o )...
@@ -267,16 +307,26 @@ namespace Grid {
private:
OperatorFunction<Field> & _HermitianRBSolver;
int CBfactorise;
bool subGuess;
public:
/////////////////////////////////////////////////////
// Wrap the usual normal equations Schur trick
/////////////////////////////////////////////////////
SchurRedBlackDiagTwoSolve(OperatorFunction<Field> &HermitianRBSolver) :
SchurRedBlackDiagTwoSolve(OperatorFunction<Field> &HermitianRBSolver, const bool initSubGuess = false) :
_HermitianRBSolver(HermitianRBSolver)
{
CBfactorise=0;
CBfactorise = 0;
subtractGuess(initSubGuess);
};
void subtractGuess(const bool initSubGuess)
{
subGuess = initSubGuess;
}
bool isSubtractGuess(void)
{
return subGuess;
}
template<class Matrix>
void operator() (Matrix & _Matrix,const Field &in, Field &out){
@@ -322,7 +372,17 @@ namespace Grid {
std::cout<<GridLogMessage << "SchurRedBlack solver calling the MpcDagMp solver" <<std::endl;
// _HermitianRBSolver(_HermOpEO,src_o,sol_o); assert(sol_o.checkerboard==Odd);
guess(src_o,tmp);
_HermitianRBSolver(_HermOpEO,src_o,tmp); assert(tmp.checkerboard==Odd);
if (subGuess)
{
std::cout << GridLogMessage << "Subtracting guess after solve" << std::endl;
Mtmp = tmp;
_HermitianRBSolver(_HermOpEO,src_o,tmp); assert(tmp.checkerboard == Odd);
tmp = tmp - Mtmp;
}
else
{
_HermitianRBSolver(_HermOpEO,src_o,tmp); assert(tmp.checkerboard==Odd);
}
_Matrix.MooeeInv(tmp,sol_o); assert( sol_o.checkerboard ==Odd);
///////////////////////////////////////////////////
@@ -352,16 +412,26 @@ namespace Grid {
private:
LinearFunction<Field> & _HermitianRBSolver;
int CBfactorise;
bool subGuess;
public:
/////////////////////////////////////////////////////
// Wrap the usual normal equations Schur trick
/////////////////////////////////////////////////////
SchurRedBlackDiagTwoMixed(LinearFunction<Field> &HermitianRBSolver) :
SchurRedBlackDiagTwoMixed(LinearFunction<Field> &HermitianRBSolver, const bool initSubGuess = false) :
_HermitianRBSolver(HermitianRBSolver)
{
CBfactorise=0;
subtractGuess(initSubGuess);
};
void subtractGuess(const bool initSubGuess)
{
subGuess = initSubGuess;
}
bool isSubtractGuess(void)
{
return subGuess;
}
template<class Matrix>
void operator() (Matrix & _Matrix,const Field &in, Field &out){
@@ -408,7 +478,17 @@ namespace Grid {
// _HermitianRBSolver(_HermOpEO,src_o,sol_o); assert(sol_o.checkerboard==Odd);
// _HermitianRBSolver(_HermOpEO,src_o,tmp); assert(tmp.checkerboard==Odd);
guess(src_o,tmp);
_HermitianRBSolver(src_o,tmp); assert(tmp.checkerboard==Odd);
if (subGuess)
{
std::cout << GridLogMessage << "Subtracting guess after solve" << std::endl;
Mtmp = tmp;
_HermitianRBSolver(_HermOpEO,src_o,tmp); assert(tmp.checkerboard==Odd);
tmp = tmp - Mtmp;
}
else
{
_HermitianRBSolver(_HermOpEO,src_o,tmp); assert(tmp.checkerboard==Odd);
}
_Matrix.MooeeInv(tmp,sol_o); assert( sol_o.checkerboard ==Odd);
///////////////////////////////////////////////////