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commute_rtd_error.cc
Go to the documentation of this file.
#include "rheolef.h"
using namespace rheolef;
using namespace std;
#include "cosinus_vector.h"
int main(int argc, char**argv) {
environment rheolef (argc, argv);
Float err_p_l2_valid = (argc > 1) ? atof(argv[1]) : 1;
Float err_p_div_l2_valid = (argc > 2) ? atof(argv[2]) : 1;
field p_Vh_u, pi_h_u;
din >> p_Vh_u >> pi_h_u;
const geo& omega = p_Vh_u.get_geo();
const space& Vh = p_Vh_u.get_space();
size_t d = omega.dimension();
size_t k = Vh.get_basis().family_index();
integrate_option iopt;
iopt.set_order (2*k+2);
Float err_p_l2 = sqrt(integrate(omega,norm2(p_Vh_u-u_exact(d)),iopt)),
err_i_l2 = sqrt(integrate(omega,norm2(pi_h_u-u_exact(d)),iopt)),
err_p_div_l2 = sqrt(integrate(omega,norm2(div_h(p_Vh_u)-div_u_exact(d)),iopt)),
err_i_div_l2 = sqrt(integrate(omega,norm2(div_h(pi_h_u)-div_u_exact(d)),iopt));
dout << "err_p_l2 = " << err_p_l2 << endl
<< "err_i_l2 = " << err_i_l2 << endl
<< "err_p_div_l2 = " << err_p_div_l2 << endl
<< "err_i_div_l2 = " << err_i_div_l2 << endl;
return (err_p_l2 <= err_p_l2_valid && err_p_div_l2 <= err_p_div_l2_valid) ? 0: 1;
}
Float
see the Float page for the full documentation
field
see the field page for the full documentation
geo
see the geo page for the full documentation
rheolef::environment
see the environment page for the full documentation
Definition environment.h:121
rheolef::integrate_option
see the integrate_option page for the full documentation
Definition integrate_option.h:125
rheolef::integrate_option::set_order
void set_order(size_t r)
Definition integrate_option.h:254
space
see the space page for the full documentation
cosinus_vector.h
The cosinus vector function.
main
int main()
Definition field2bb.cc:58
rheolef
This file is part of Rheolef.
Definition compiler_eigen.h:39
rheolef::div_h
std::enable_if< details::has_field_rdof_interface< Expr >::value, details::field_expr_v2_nonlinear_terminal_field< typenameExpr::scalar_type, typenameExpr::memory_type, details::differentiate_option::divergence > >::type div_h(const Expr &expr)
div_h(uh): see the expression page for the full documentation
Definition field_expr_terminal.h:1088
rheolef::norm2
T norm2(const vec< T, M > &x)
norm2(x): see the expression page for the full documentation
Definition vec.h:379
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:211
std
STL namespace.
d
size_t d
Definition neumann-laplace-lambda.cc:28
rheolef.h
rheolef - reference manual
div_u_exact
Definition cosinus_vector.h:31
u_exact
g u_exact
Definition taylor_exact.h:26