Page Menu
Home
c4science
Search
Configure Global Search
Log In
Files
F61104778
solvers.cpp
No One
Temporary
Actions
Download File
Edit File
Delete File
View Transforms
Subscribe
Mute Notifications
Award Token
Subscribers
None
File Metadata
Details
File Info
Storage
Attached
Created
Sat, May 4, 13:56
Size
10 KB
Mime Type
text/x-c++
Expires
Mon, May 6, 13:56 (2 d)
Engine
blob
Format
Raw Data
Handle
17426329
Attached To
rTAMAAS tamaas
solvers.cpp
View Options
/*
* SPDX-License-Indentifier: AGPL-3.0-or-later
*
* Copyright (©) 2016-2023 EPFL (École Polytechnique Fédérale de Lausanne),
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
* Copyright (©) 2020-2023 Lucas Frérot
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#include "beck_teboulle.hh"
#include "condat.hh"
#include "contact_solver.hh"
#include "dfsane_solver.hh"
#include "ep_solver.hh"
#include "epic.hh"
#include "kato.hh"
#include "kato_saturated.hh"
#include "polonsky_keer_rey.hh"
#include "polonsky_keer_tan.hh"
#include "wrap.hh"
#include <pybind11/iostream.h>
/* -------------------------------------------------------------------------- */
namespace tamaas {
namespace wrap {
/* -------------------------------------------------------------------------- */
using namespace py::literals;
class PyEPSolver : public EPSolver {
public:
using EPSolver::EPSolver;
// NOLINTNEXTLINE(readability-else-after-return)
void solve() override { PYBIND11_OVERLOAD_PURE(void, EPSolver, solve); }
void updateState() override {
// NOLINTNEXTLINE(readability-else-after-return)
PYBIND11_OVERLOAD(void, EPSolver, updateState);
}
};
class PyContactSolver : public ContactSolver {
public:
using ContactSolver::ContactSolver;
Real solve(std::vector<Real> load) override {
PYBIND11_OVERLOAD(Real, ContactSolver, solve, load);
}
Real solve(Real load) override {
PYBIND11_OVERLOAD(Real, ContactSolver, solve, load);
}
};
/* -------------------------------------------------------------------------- */
void wrapSolvers(py::module& mod) {
py::class_<ContactSolver, PyContactSolver>(mod, "ContactSolver")
.def(py::init<Model&, const GridBase<Real>&, Real>(),
py::keep_alive<1, 2>(), py::keep_alive<1, 3>())
.def(
"setMaxIterations",
[](ContactSolver& m, UInt iter) {
TAMAAS_DEPRECATE("setMaxIterations()", "the max_iter property");
m.setMaxIterations(iter);
},
"max_iter"_a)
.def(
"setDumpFrequency",
[](ContactSolver& m, UInt freq) {
TAMAAS_DEPRECATE("setDumpFrequency()", "the dump_freq property");
m.setDumpFrequency(freq);
},
"dump_freq"_a)
.def_property("tolerance", &ContactSolver::getTolerance,
&ContactSolver::setTolerance, "Solver tolerance")
.def_property("max_iter", &ContactSolver::getMaxIterations,
&ContactSolver::setMaxIterations,
"Maximum number of iterations")
.def_property("dump_freq", &ContactSolver::getDumpFrequency,
&ContactSolver::setDumpFrequency,
"Frequency of displaying solver info")
.def_property_readonly("model", &ContactSolver::getModel)
.def_property_readonly("surface", &ContactSolver::getSurface)
.def_property_readonly("functional", &ContactSolver::getFunctional)
.def("addFunctionalTerm", &ContactSolver::addFunctionalTerm,
"Add a term to the contact functional to minimize")
.def("solve", py::overload_cast<std::vector<Real>>(&ContactSolver::solve),
"target_force"_a,
py::call_guard<py::scoped_ostream_redirect,
py::scoped_estream_redirect>(),
"Solve the contact for a mean traction/gap vector")
.def("solve", py::overload_cast<Real>(&ContactSolver::solve),
"target_normal_pressure"_a,
py::call_guard<py::scoped_ostream_redirect,
py::scoped_estream_redirect>(),
"Solve the contact for a mean normal pressure/gap");
py::class_<PolonskyKeerRey, ContactSolver> pkr(
mod, "PolonskyKeerRey",
"Main solver class for normal elastic contact problems. Its functional "
"can be customized to add an adhesion term, and its primal variable can "
"be set to either the gap or the pressure.");
// Need to export enum values before defining PKR constructor
py::enum_<PolonskyKeerRey::type>(pkr, "type")
.value("gap", PolonskyKeerRey::gap)
.value("pressure", PolonskyKeerRey::pressure)
.export_values();
pkr.def(py::init<Model&, const GridBase<Real>&, Real, PolonskyKeerRey::type,
PolonskyKeerRey::type>(),
"model"_a, "surface"_a, "tolerance"_a,
"primal_type"_a = PolonskyKeerRey::type::pressure,
"constraint_type"_a = PolonskyKeerRey::type::pressure,
py::keep_alive<1, 2>(), py::keep_alive<1, 3>())
.def("computeError", &PolonskyKeerRey::computeError);
py::class_<KatoSaturated, PolonskyKeerRey>(
mod, "KatoSaturated",
"Solver for pseudo-plasticity problems where the normal pressure is "
"constrained above by a saturation pressure \"pmax\"")
.def(py::init<Model&, const GridBase<Real>&, Real, Real>(), "model"_a,
"surface"_a, "tolerance"_a, "pmax"_a, py::keep_alive<1, 2>(),
py::keep_alive<1, 3>())
.def_property("pmax", &KatoSaturated::getPMax, &KatoSaturated::setPMax,
"Saturation normal pressure");
py::class_<Kato, ContactSolver> kato(mod, "Kato");
kato.def(py::init<Model&, const GridBase<Real>&, Real, Real>(), "model"_a,
"surface"_a, "tolerance"_a, "mu"_a, py::keep_alive<1, 2>(),
py::keep_alive<1, 3>())
.def("solve", &Kato::solve, "p0"_a, "proj_iter"_a = 50)
.def("solveRelaxed", &Kato::solveRelaxed, "g0"_a)
.def("solveRegularized", &Kato::solveRegularized, "p0"_a, "r"_a = 0.01)
.def("computeCost", &Kato::computeCost, "use_tresca"_a = false);
py::class_<BeckTeboulle, ContactSolver> bt(mod, "BeckTeboulle");
bt.def(py::init<Model&, const GridBase<Real>&, Real, Real>(), "model"_a,
"surface"_a, "tolerance"_a, "mu"_a, py::keep_alive<1, 2>(),
py::keep_alive<1, 3>())
.def("solve", &BeckTeboulle::solve, "p0"_a)
.def("computeCost", &BeckTeboulle::computeCost);
py::class_<Condat, ContactSolver> cd(
mod, "Condat",
"Main solver for frictional contact problems. It has no restraint on the "
"material properties or friction coefficient values, but solves an "
"associated version of the Coulomb friction law, which differs from the "
"traditional Coulomb friction in that the normal and tangential slip "
"components are coupled.");
cd.def(py::init<Model&, const GridBase<Real>&, Real, Real>(), "model"_a,
"surface"_a, "tolerance"_a, "mu"_a, py::keep_alive<1, 2>(),
py::keep_alive<1, 3>())
.def("solve", &Condat::solve, "p0"_a, "grad_step"_a = 0.9)
.def("computeCost", &Condat::computeCost);
py::class_<PolonskyKeerTan, ContactSolver> pkt(mod, "PolonskyKeerTan");
pkt.def(py::init<Model&, const GridBase<Real>&, Real, Real>(), "model"_a,
"surface"_a, "tolerance"_a, "mu"_a, py::keep_alive<1, 2>(),
py::keep_alive<1, 3>())
.def("solve", &PolonskyKeerTan::solve, "p0"_a)
.def("solveTresca", &PolonskyKeerTan::solveTresca, "p0"_a)
.def("computeCost", &PolonskyKeerTan::computeCost,
"use_tresca"_a = false);
py::class_<ToleranceManager>(
mod, "_tolerance_manager",
"Manager object for the tolereance of nonlinear plasticity solvers. "
"Decreases the solver tolerance by geometric progression.")
.def(py::init<Real, Real, Real>(), "start_tol"_a, "end_tol"_a, "rate"_a);
py::class_<EPSolver, PyEPSolver>(
mod, "EPSolver", "Mother class for nonlinear plasticity solvers")
.def(py::init<Residual&>(), "residual"_a, py::keep_alive<1, 2>())
.def("solve", &EPSolver::solve)
.def("getStrainIncrement", &EPSolver::getStrainIncrement,
py::return_value_policy::reference_internal)
.def("getResidual", &EPSolver::getResidual,
py::return_value_policy::reference_internal)
.def("updateState", &EPSolver::updateState)
.def_property("tolerance", &EPSolver::getTolerance,
&EPSolver::setTolerance)
.def("setToleranceManager", &EPSolver::setToleranceManager)
.def("beforeSolve", &EPSolver::beforeSolve);
py::class_<DFSANESolver, EPSolver>(mod, "_DFSANESolver")
.def(py::init<Residual&>(), "residual"_a, py::keep_alive<1, 2>())
.def(py::init([](Residual& res, Model&) {
TAMAAS_DEPRECATE("Solver(residual, model)", "Solver(residual)");
return std::make_unique<DFSANESolver>(res);
}),
"residual"_a, "model"_a, py::keep_alive<1, 2>());
py::class_<EPICSolver>(
mod, "EPICSolver",
"Main solver class for elastic-plastic contact problems")
.def(py::init<ContactSolver&, EPSolver&, Real, Real>(),
"contact_solver"_a, "elasto_plastic_solver"_a, "tolerance"_a = 1e-10,
"relaxation"_a = 0.3, py::keep_alive<1, 2>(), py::keep_alive<1, 3>())
.def(
"solve",
[](EPICSolver& solver, Real pressure) {
return solver.solve(std::vector<Real>{pressure});
},
"normal_pressure"_a,
py::call_guard<py::scoped_ostream_redirect,
py::scoped_estream_redirect>(),
"Solves the EP contact with a relaxed fixed-point scheme. Adjust "
"the relaxation parameter to help convergence.")
.def(
"acceleratedSolve",
[](EPICSolver& solver, Real pressure) {
return solver.acceleratedSolve(std::vector<Real>{pressure});
},
"normal_pressure"_a,
py::call_guard<py::scoped_ostream_redirect,
py::scoped_estream_redirect>(),
"Solves the EP contact with an accelerated fixed-point scheme. May "
"not converge!")
.def_property("tolerance", &EPICSolver::getTolerance,
&EPICSolver::setTolerance)
.def_property("relaxation", &EPICSolver::getRelaxation,
&EPICSolver::setRelaxation)
.def_property_readonly("model", &EPICSolver::getModel);
}
} // namespace wrap
} // namespace tamaas
Event Timeline
Log In to Comment