transport_dg2_error.cc
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#include "rheolef.h"
using namespace rheolef;
using namespace std;
#include "transport_dg2.h"
int main(int argc, char**argv) {
environment rheolef (argc, argv);
Float tol = (argc > 1) ? atof(argv[1]) : 1e-10;
bool dump = (argc > 2);
Float w;
field phi_h;
din >> catchmark("w") >> w
>> catchmark("phi") >> phi_h;
size_t k = phi_h.get_space().degree();
integrate_option iopt;
iopt.set_family(integrate_option::gauss);
iopt.set_order(2*k+1);
Float err_l2 = sqrt(integrate (phi_h.get_geo(), sqr(phi_h - phi_exact(w)), iopt));
space Th1 (phi_h.get_geo(), "P"+itos(k+1)+"d");
field eh = interpolate(Th1, phi_h - phi_exact(w));
Float err_linf = eh.max_abs();
derr << "err_l2 = " << err_l2 << endl
<< "err_linf = " << err_linf << endl;
if (dump) {
dout << catchmark("phi") << phi_h
<< catchmark("e") << eh;
}
return (err_l2 < tol) ? 0 : 1;
}
rheolef::catchmark
see the catchmark page for the full documentation
Definition: catchmark.h:67
transport_dg2.h
The rotating hill benchmark for the transport problem.
rheolef::integrate_option::set_order
void set_order(size_t r)
Definition: integrate_option.h:254
field
see the field page for the full documentation
rheolef::integrate
std::enable_if< details::is_field_expr_v2_nonlinear_arg< Expr >::value &&! is_undeterminated< Result >::value, Result >::type integrate(const geo_basic< T, M > &omega, const Expr &expr, const integrate_option &iopt, Result dummy=Result())
see the integrate page for the full documentation
Definition: integrate.h:202
dump
verbose clean transpose logscale grid shrink ball stereo iso volume skipvtk deformation fastfieldload lattice reader_on_stdin color format format format format format format format format format format format format format format format format format format dump
Definition: iorheo-members.h:119
space
see the space page for the full documentation
phi_exact
Definition: transport_dg2.h:30
rheolef.h
rheolef - reference manual
rheolef::integrate_option
see the integrate_option page for the full documentation
Definition: integrate_option.h:125
rheolef::integrate_option::gauss
@ gauss
Definition: integrate_option.h:132
rheolef::interpolate
field_basic< T, M > interpolate(const space_basic< T, M > &V2h, const field_basic< T, M > &u1h)
see the interpolate page for the full documentation
Definition: interpolate.cc:233
eh
field_basic< T, M > eh
Definition: form_field_expr.h:58
rheolef::din
idiststream din
see the diststream page for the full documentation
Definition: diststream.h:427
rheolef::environment
see the environment page for the full documentation
Definition: environment.h:115
rheolef
This file is part of Rheolef.
Definition: compiler_eigen.h:37
rheolef::derr
odiststream derr(cerr)
see the diststream page for the full documentation
Definition: diststream.h:436
Float
see the Float page for the full documentation
rheolef::integrate_option::set_family
void set_family(family_type type)
Definition: integrate_option.h:260
rheolef::dout
odiststream dout(cout)
see the diststream page for the full documentation
Definition: diststream.h:430
rheolef::itos
std::string itos(std::string::size_type i)
itos: see the rheostream page for the full documentation
rheolef::std
Definition: vec_expr_v2.h:391
main
int main(int argc, char **argv)
Definition: transport_dg2_error.cc:25