mirror of
https://github.com/OPM/opm-simulators.git
synced 2024-12-22 15:33:29 -06:00
322 lines
9.9 KiB
C++
322 lines
9.9 KiB
C++
/*
|
|
Copyright 2017 Dr. Blatt - HPC-Simulation-Software & Services
|
|
|
|
This file is part of the Open Porous Media project (OPM).
|
|
|
|
OPM is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
OPM is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with OPM. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#include <config.h>
|
|
#if HAVE_MPI
|
|
#define BOOST_TEST_MODULE BlackoilAmgTest
|
|
#define BOOST_TEST_NO_MAIN
|
|
#include <boost/test/unit_test.hpp>
|
|
#include <opm/simulators/linalg/PreconditionerFactory.hpp>
|
|
#include <opm/simulators/linalg/FlexibleSolver.hpp>
|
|
#include <opm/simulators/linalg/PropertyTree.hpp>
|
|
#include <opm/simulators/linalg/getQuasiImpesWeights.hpp>
|
|
|
|
#include <dune/common/parallel/mpihelper.hh>
|
|
#include <dune/common/fmatrix.hh>
|
|
#include <dune/common/unused.hh>
|
|
#include <dune/common/parallel/indexset.hh>
|
|
#include <dune/common/parallel/plocalindex.hh>
|
|
#include <dune/common/parallel/communication.hh>
|
|
#include <dune/istl/bcrsmatrix.hh>
|
|
#include <dune/istl/owneroverlapcopy.hh>
|
|
#include <dune/istl/schwarz.hh>
|
|
|
|
class MPIError {
|
|
public:
|
|
/** @brief Constructor. */
|
|
MPIError(std::string s, int e) : errorstring(s), errorcode(e){}
|
|
/** @brief The error string. */
|
|
std::string errorstring;
|
|
/** @brief The mpi error code. */
|
|
int errorcode;
|
|
};
|
|
|
|
void MPI_err_handler(MPI_Comm *, int *err_code, ...){
|
|
char *err_string=new char[MPI_MAX_ERROR_STRING];
|
|
int err_length;
|
|
MPI_Error_string(*err_code, err_string, &err_length);
|
|
std::string s(err_string, err_length);
|
|
std::cerr << "An MPI Error ocurred:"<<std::endl<<s<<std::endl;
|
|
delete[] err_string;
|
|
throw MPIError(s, *err_code);
|
|
}
|
|
|
|
typedef Dune::OwnerOverlapCopyAttributeSet GridAttributes;
|
|
typedef GridAttributes::AttributeSet GridFlag;
|
|
typedef Dune::ParallelLocalIndex<GridFlag> LocalIndex;
|
|
|
|
template<class M, class G, class L, int n>
|
|
void setupPattern(int N, M& mat, Dune::ParallelIndexSet<G,L,n>& indices, int overlapStart, int overlapEnd,
|
|
int start, int end);
|
|
|
|
template<class M>
|
|
void fillValues(int N, M& mat, int overlapStart, int overlapEnd, int start, int end);
|
|
|
|
|
|
template<class M, class G, class L, class C, int n>
|
|
M setupAnisotropic2d(int N, Dune::ParallelIndexSet<G,L,n>& indices,
|
|
const C& p, int *nout, typename M::block_type::value_type eps=1.0);
|
|
|
|
|
|
template<class M, class G, class L, int s>
|
|
void setupPattern(int N, M& mat, Dune::ParallelIndexSet<G,L,s>& indices, int overlapStart, int overlapEnd,
|
|
int start, int end)
|
|
{
|
|
int n = overlapEnd - overlapStart;
|
|
|
|
typename M::CreateIterator iter = mat.createbegin();
|
|
indices.beginResize();
|
|
|
|
for(int j=0; j < N; j++)
|
|
for(int i=overlapStart; i < overlapEnd; i++, ++iter) {
|
|
int global = j*N+i;
|
|
GridFlag flag = GridAttributes::owner;
|
|
bool isPublic = false;
|
|
|
|
if((i<start && i > 0) || (i>= end && i < N-1))
|
|
flag=GridAttributes::copy;
|
|
|
|
if(i<start+1 || i>= end-1) {
|
|
isPublic = true;
|
|
indices.add(global, LocalIndex(iter.index(), flag, isPublic));
|
|
}
|
|
|
|
|
|
iter.insert(iter.index());
|
|
|
|
// i direction
|
|
if(i > overlapStart )
|
|
// We have a left neighbour
|
|
iter.insert(iter.index()-1);
|
|
|
|
if(i < overlapEnd-1)
|
|
// We have a rigt neighbour
|
|
iter.insert(iter.index()+1);
|
|
|
|
// j direction
|
|
// Overlap is a dirichlet border, discard neighbours
|
|
if(flag != GridAttributes::copy) {
|
|
if(j>0)
|
|
// lower neighbour
|
|
iter.insert(iter.index()-n);
|
|
if(j<N-1)
|
|
// upper neighbour
|
|
iter.insert(iter.index()+n);
|
|
}
|
|
}
|
|
indices.endResize();
|
|
}
|
|
|
|
template<class M, class T>
|
|
void fillValues([[maybe_unused]] int N, M& mat, int overlapStart, int overlapEnd, int start, int end, T eps)
|
|
{
|
|
typedef typename M::block_type Block;
|
|
Block dval(0), bone(0), bmone(0), beps(0);
|
|
|
|
for(typename Block::RowIterator b = dval.begin(); b != dval.end(); ++b)
|
|
b->operator[](b.index())=2.0+2.0*eps;
|
|
|
|
for(typename Block::RowIterator b=bone.begin(); b != bone.end(); ++b)
|
|
b->operator[](b.index())=1.0;
|
|
|
|
for(typename Block::RowIterator b=bmone.begin(); b != bmone.end(); ++b)
|
|
b->operator[](b.index())=-1.0;
|
|
|
|
for(typename Block::RowIterator b=beps.begin(); b != beps.end(); ++b)
|
|
b->operator[](b.index())=-eps;
|
|
|
|
int n = overlapEnd-overlapStart;
|
|
typedef typename M::ColIterator ColIterator;
|
|
typedef typename M::RowIterator RowIterator;
|
|
|
|
for (RowIterator i = mat.begin(); i != mat.end(); ++i) {
|
|
// calculate coordinate
|
|
int y = i.index() / n;
|
|
int x = overlapStart + i.index() - y * n;
|
|
|
|
ColIterator endi = (*i).end();
|
|
|
|
if(x<start || x >= end) { // || x==0 || x==N-1 || y==0 || y==N-1){
|
|
// overlap node is dirichlet border
|
|
ColIterator j = (*i).begin();
|
|
|
|
for(; j.index() < i.index(); ++j)
|
|
*j=0;
|
|
|
|
*j = bone;
|
|
|
|
for(++j; j != endi; ++j)
|
|
*j=0;
|
|
}else{
|
|
for(ColIterator j = (*i).begin(); j != endi; ++j)
|
|
if(j.index() == i.index())
|
|
*j=dval;
|
|
else if(j.index()+1==i.index() || j.index()-1==i.index())
|
|
*j=beps;
|
|
else
|
|
*j=bmone;
|
|
}
|
|
}
|
|
}
|
|
|
|
template<class V, class G, class L, int s>
|
|
void setBoundary(V& lhs, V& rhs, const G& n, Dune::ParallelIndexSet<G,L,s>& indices)
|
|
{
|
|
typedef typename Dune::ParallelIndexSet<G,L,s>::const_iterator Iter;
|
|
for(Iter i=indices.begin(); i != indices.end(); ++i) {
|
|
G x = i->global()/n;
|
|
G y = i->global()%n;
|
|
|
|
if(x==0 || y ==0 || x==n-1 || y==n-1) {
|
|
//double h = 1.0 / ((double) (n-1));
|
|
lhs[i->local()]=rhs[i->local()]=0; //((double)x)*((double)y)*h*h;
|
|
}
|
|
}
|
|
}
|
|
|
|
template<class V, class G>
|
|
void setBoundary(V& lhs, V& rhs, const G& N)
|
|
{
|
|
typedef typename V::block_type Block;
|
|
typedef typename Block::value_type T;
|
|
for(int j=0; j < N; ++j)
|
|
for(int i=0; i < N; i++)
|
|
if(i==0 || j ==0 || i==N-1 || j==N-1) {
|
|
T h = 1.0 / ((double) (N-1));
|
|
T x, y;
|
|
if(i==N-1)
|
|
x=1;
|
|
else
|
|
x = ((T) i)*h;
|
|
if(j==N-1)
|
|
y = 1;
|
|
else
|
|
y = ((T) j)*h;
|
|
|
|
lhs[j*N+i]=rhs[j*N+i]=0; //x*y;
|
|
}
|
|
}
|
|
|
|
template<class M, class G, class L, class C, int s>
|
|
M setupAnisotropic2d(int N, Dune::ParallelIndexSet<G,L,s>& indices, const C& p, int *nout, typename M::block_type::value_type eps)
|
|
{
|
|
int procs=p.size(), rank=p.rank();
|
|
|
|
typedef M BCRSMat;
|
|
|
|
// calculate size of local matrix in the distributed direction
|
|
int start, end, overlapStart, overlapEnd;
|
|
|
|
int n = N/procs; // number of unknowns per process
|
|
int bigger = N%procs; // number of process with n+1 unknows
|
|
|
|
// Compute owner region
|
|
if(rank<bigger) {
|
|
start = rank*(n+1);
|
|
end = start+(n+1);
|
|
}else{
|
|
start = bigger*(n+1) + (rank-bigger) * n;
|
|
end = start+n;
|
|
}
|
|
|
|
// Compute overlap region
|
|
if(start>0)
|
|
overlapStart = start - 1;
|
|
else
|
|
overlapStart = start;
|
|
|
|
if(end<N)
|
|
overlapEnd = end + 1;
|
|
else
|
|
overlapEnd = end;
|
|
|
|
int noKnown = overlapEnd-overlapStart;
|
|
|
|
*nout = noKnown;
|
|
|
|
BCRSMat mat(noKnown*N, noKnown*N, noKnown*N*5, BCRSMat::row_wise);
|
|
|
|
setupPattern(N, mat, indices, overlapStart, overlapEnd, start, end);
|
|
fillValues(N, mat, overlapStart, overlapEnd, start, end, eps);
|
|
|
|
// Dune::printmatrix(std::cout,mat,"aniso 2d","row",9,1);
|
|
|
|
return mat;
|
|
}
|
|
|
|
|
|
//BOOST_AUTO_TEST_CASE(runBlackoilAmgLaplace)
|
|
void runBlackoilAmgLaplace()
|
|
{
|
|
constexpr int BS=2, N=100;
|
|
typedef Dune::FieldMatrix<double,BS,BS> MatrixBlock;
|
|
typedef Dune::BCRSMatrix<MatrixBlock> BCRSMat;
|
|
typedef Dune::FieldVector<double,BS> VectorBlock;
|
|
typedef Dune::BlockVector<VectorBlock> Vector;
|
|
typedef int GlobalId;
|
|
typedef Dune::OwnerOverlapCopyCommunication<GlobalId> Communication;
|
|
typedef Dune::OverlappingSchwarzOperator<BCRSMat,Vector,Vector,Communication> Operator;
|
|
|
|
const auto& ccomm = Dune::MPIHelper::getCommunication();
|
|
|
|
Communication comm(ccomm);
|
|
int n=0;
|
|
BCRSMat mat = setupAnisotropic2d<BCRSMat>(N, comm.indexSet(), comm.communicator(), &n, 1);
|
|
|
|
|
|
comm.remoteIndices().template rebuild<false>();
|
|
|
|
Vector b(mat.N()), x(mat.M());
|
|
|
|
b=0;
|
|
x=100;
|
|
setBoundary(x, b, N, comm.indexSet());
|
|
|
|
Operator fop(mat, comm);
|
|
Dune::OverlappingSchwarzScalarProduct<Vector,Communication> sp(comm);
|
|
Dune::InverseOperatorResult r;
|
|
|
|
using namespace std::string_literals;
|
|
Opm::PropertyTree prm;
|
|
prm.put("type", "amg"s);
|
|
std::function<Vector()> weights = [&mat]() {
|
|
return Opm::Amg::getQuasiImpesWeights<BCRSMat, Vector>(mat, 0, false);
|
|
};
|
|
auto amg = Opm::PreconditionerFactory<Operator, Communication>::create(fop, prm, weights, comm);
|
|
|
|
Dune::CGSolver<Vector> amgCG(fop, sp, *amg, 10e-8, 300, (ccomm.rank()==0) ? 2 : 0);
|
|
|
|
amgCG.apply(x,b,r);
|
|
|
|
}
|
|
|
|
bool init_unit_test_func()
|
|
{
|
|
return true;
|
|
}
|
|
|
|
int main(int argc, char** argv)
|
|
{
|
|
[[maybe_unused]] const auto& helper = Dune::MPIHelper::instance(argc, argv);
|
|
boost::unit_test::unit_test_main(&init_unit_test_func,
|
|
argc, argv);
|
|
}
|
|
#else
|
|
int main () { return 0; }
|
|
#endif // #if HAVE_MPI
|