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MdagM solver from mg_proto #56

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MdagM solver from mg_proto #56

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31cb8db
fixed a bug of XML parsing
sunwayihep Mar 14, 2019
160f7b9
add multigrid MdagM solver based on mg_proto
Sep 30, 2019
afe7dde
add RsdToleranceFactor parameter and a test input
sunwayihep Sep 30, 2019
30e59f2
recreate multigrid subspace if number of iterations exceed some thres…
sunwayihep Oct 3, 2019
84bdc1c
check convergence after each step of two-step solver
sunwayihep Oct 4, 2019
f9600e6
fix a bug to avoid recreate the subspace at X solve where the same su…
sunwayihep Nov 14, 2019
cfe6572
add RsdToleranceFactor for linop
sunwayihep Nov 25, 2019
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6 changes: 4 additions & 2 deletions lib/Makefile.am
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Original file line number Diff line number Diff line change
Expand Up @@ -2121,13 +2121,15 @@ nobase_include_HEADERS += \
actions/ferm/invert/mg_proto/mg_proto_qphix_helpers.h \
meas/inline/io/inline_erase_mg_proto_qphix_space.h \
actions/ferm/invert/mg_proto/syssolver_linop_clover_mg_proto_qphix.h \
actions/ferm/invert/mg_proto/syssolver_linop_clover_mg_proto_qphix_eo.h
actions/ferm/invert/mg_proto/syssolver_linop_clover_mg_proto_qphix_eo.h \
actions/ferm/invert/mg_proto/syssolver_mdagm_clover_mg_proto_qphix_eo.h

libchroma_a_SOURCES += \
actions/ferm/invert/mg_proto/mg_proto_qphix_helpers.cc \
meas/inline/io/inline_erase_mg_proto_qphix_space.cc \
actions/ferm/invert/mg_proto/syssolver_linop_clover_mg_proto_qphix.cc \
actions/ferm/invert/mg_proto/syssolver_linop_clover_mg_proto_qphix_eo.cc
actions/ferm/invert/mg_proto/syssolver_linop_clover_mg_proto_qphix_eo.cc \
actions/ferm/invert/mg_proto/syssolver_mdagm_clover_mg_proto_qphix_eo.cc
endif

endif
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5 changes: 5 additions & 0 deletions lib/actions/ferm/invert/mg_proto/mg_proto_qphix_helpers.h
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Expand Up @@ -40,6 +40,11 @@ using MGPreconditionerEO = MGPreconditionerT<MG::QPhiXMultigridLevelsEO, MG::VCy


// for testing
template<typename QPhiXLinOpT>
std::shared_ptr<QPhiXLinOpT>
createFineLinOpT( const MGProtoSolverParams& params, const multi1d<LatticeColorMatrix>& u,
const MG::LatticeInfo& info);

std::shared_ptr<MG::QPhiXWilsonCloverLinearOperator>
createFineLinOp( const MGProtoSolverParams& params, const multi1d<LatticeColorMatrix>& u,
const MG::LatticeInfo& info);
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11 changes: 11 additions & 0 deletions lib/actions/ferm/invert/mg_proto/mgproto_solver_params.cc
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Expand Up @@ -67,6 +67,17 @@ MGProtoSolverParams::MGProtoSolverParams(XMLReader& xml, const std::string& path
read( paramtop, "OuterSolverRsdTarget", OuterSolverRsdTarget);
read( paramtop, "OuterSolverMaxIters", OuterSolverMaxIters);
read( paramtop, "OuterSolverVerboseP", OuterSolverVerboseP);
if( paramtop.count("RsdToleranceFactor") > 0 ) {
read(paramtop, "RsdToleranceFactor", RsdToleranceFactor);
} else {
RsdToleranceFactor = 10;
}

if( paramtop.count("ThresholdCount") > 0 ) {
read(paramtop, "ThresholdCount", ThresholdCount);
} else {
ThresholdCount = 50; // current setup for test
}

read( paramtop, "VCyclePreSmootherMaxIters", VCyclePreSmootherMaxIters, MGLevels-1);
read( paramtop, "VCyclePreSmootherRsdTarget", VCyclePreSmootherRsdTarget, MGLevels-1);
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2 changes: 2 additions & 0 deletions lib/actions/ferm/invert/mg_proto/mgproto_solver_params.h
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Expand Up @@ -39,8 +39,10 @@ struct MGProtoSolverParams {
// Details of Outer Solver
int OuterSolverNKrylov;
Double OuterSolverRsdTarget;
Double RsdToleranceFactor;
int OuterSolverMaxIters;
bool OuterSolverVerboseP;
int ThresholdCount;

// VCycle Details (MGLevels - 1 of these)
// Presmoother
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11 changes: 6 additions & 5 deletions lib/actions/ferm/invert/mg_proto/syssolver_linop_clover_mg_proto_qphix_eo.cc
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Expand Up @@ -112,7 +112,7 @@ namespace Chroma
LinOpSysSolverMGProtoQPhiXEOClover::operator()(T& psi, const T& chi) const
{
QDPIO::cout << "Jolly Greetings from Even-Odd Multigridland" << std::endl;
const Subset& s = A->subset();
const Subset& s = A->subset();
StopWatch swatch;
StopWatch swatch2;

Expand Down Expand Up @@ -146,10 +146,10 @@ namespace Chroma
MG::LinearSolverResults res=(*eo_solver)(qphix_out,qphix_in, RELATIVE);

swatch2.stop();

double qphix_out_norm_cb0 = MG::Norm2Vec(qphix_out, SUBSET_EVEN);
double qphix_out_norm_cb1 = MG::Norm2Vec(qphix_out, SUBSET_ODD);

psi = zero;
QPhiXSpinorToQDPSpinor(qphix_out,psi);
Double psi_norm_cb0 = norm2(psi,rb[0]);
Expand All @@ -170,8 +170,9 @@ namespace Chroma
Double n2 = norm2(tmp,s);
Double n2rel = n2 / norm2(chi,s);
QDPIO::cout << "MG_PROTO_QPHIX_EO_CLOVER_INVERTER: iters = "<< res.n_count << " rel resid = " << sqrt(n2rel) << std::endl;
if( toBool( sqrt(n2rel) > invParam.OuterSolverRsdTarget ) ) {
MGSolverException convergence_fail(invParam.CloverParams.Mass,
if( toBool( sqrt(n2rel) > invParam.OuterSolverRsdTarget * invParam.RsdToleranceFactor) ) {
QDPIO::cout<<"MG_PROTO Solver Not Converged!"<<std::endl;
MGSolverException convergence_fail(invParam.CloverParams.Mass,
subspaceId,
res.n_count,
Real(sqrt(n2rel)),
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