sutherland_viscosity_vec_unit.C File Reference

#include "antioch_config.h"
#include <valarray>
#include "Eigen/Dense"
#include "metaphysicl/numberarray.h"
#include "vexcl/vexcl.hpp"
#include <iostream>
#include <cmath>
#include <limits>
#include "antioch/eigen_utils_decl.h"
#include "antioch/metaphysicl_utils_decl.h"
#include "antioch/valarray_utils_decl.h"
#include "antioch/vector_utils_decl.h"
#include "antioch/vexcl_utils_decl.h"
#include "antioch/sutherland_viscosity.h"
#include "antioch/eigen_utils.h"
#include "antioch/metaphysicl_utils.h"
#include "antioch/valarray_utils.h"
#include "antioch/vexcl_utils.h"

Go to the source code of this file.

Functions
template<typename Scalar , typename PairScalars >
int	test_viscosity (const PairScalars mu, const PairScalars mu_exact, const Scalar tol)
template<typename PairScalars >
int	vectester (const PairScalars &example, const std::string &testname)
int	main ()

Function Documentation

int main

(

)

Definition at line 164 of file sutherland_viscosity_vec_unit.C.

References vectester().

{
  int returnval = 0;

  returnval = returnval ||
    vectester (std::valarray<float>(2*ANTIOCH_N_TUPLES), "valarray<float>");
  returnval = returnval ||
    vectester (std::valarray<double>(2*ANTIOCH_N_TUPLES), "valarray<double>");
  returnval = returnval ||
    vectester (std::valarray<long double>(2*ANTIOCH_N_TUPLES), "valarray<ld>");
#ifdef ANTIOCH_HAVE_EIGEN
  returnval = returnval ||
    vectester (Eigen::Array<float, 2*ANTIOCH_N_TUPLES, 1>(), "Eigen::ArrayXf");
  returnval = returnval ||
    vectester (Eigen::Array<double, 2*ANTIOCH_N_TUPLES, 1>(), "Eigen::ArrayXd");
  returnval = returnval ||
    vectester (Eigen::Array<long double, 2*ANTIOCH_N_TUPLES, 1>(), "Eigen::ArrayXld");
#endif
#ifdef ANTIOCH_HAVE_METAPHYSICL
  returnval = returnval ||
    vectester (MetaPhysicL::NumberArray<2*ANTIOCH_N_TUPLES, float> (0), "NumberArray<float>");
  returnval = returnval ||
    vectester (MetaPhysicL::NumberArray<2*ANTIOCH_N_TUPLES, double> (0), "NumberArray<double>");
  returnval = returnval ||
    vectester (MetaPhysicL::NumberArray<2*ANTIOCH_N_TUPLES, long double> (0), "NumberArray<ld>");
#endif
#ifdef ANTIOCH_HAVE_VEXCL
  vex::Context ctx_f (vex::Filter::All);
  if (!ctx_f.empty())
    returnval = returnval ||
      vectester (vex::vector<float> (ctx_f, 2*ANTIOCH_N_TUPLES), "vex::vector<float>");

  vex::Context ctx_d (vex::Filter::DoublePrecision);
  if (!ctx_d.empty())
    returnval = returnval ||
      vectester (vex::vector<double> (ctx_d, 2*ANTIOCH_N_TUPLES), "vex::vector<double>");
#endif

#ifdef ANTIOCH_HAVE_GRVY
  gt.Finalize();
  gt.Summarize();
#endif

  return returnval;
}

template<typename Scalar , typename PairScalars >

int test_viscosity	(	const PairScalars	mu,
		const PairScalars	mu_exact,
		const Scalar	tol
	)

Definition at line 76 of file sutherland_viscosity_vec_unit.C.

References Antioch::max().

Referenced by vectester().

{
  using std::abs;

  int return_flag = 0;

  const PairScalars rel_error = abs( (mu - mu_exact)/mu_exact);

  if( Antioch::max(rel_error) > tol )
    {
      std::cerr << "Error: Mismatch in viscosity" << std::endl
                << "mu(T)    = " << mu << std::endl
                << "mu_exact = " << mu_exact << std::endl
                << "rel_error = " << rel_error << std::endl
                << "tol = " << tol << std::endl;
      return_flag = 1;
    }

  return return_flag;
}

template<typename PairScalars >

int vectester	(	const PairScalars &	example,
		const std::string &	testname
	)

Definition at line 99 of file sutherland_viscosity_vec_unit.C.

References Antioch::SutherlandViscosity< CoeffType >::reset_coeffs(), and test_viscosity().

Referenced by main().

{
  typedef typename Antioch::value_type<PairScalars>::type Scalar;

  const Scalar mu_ref = 1.0e-3L;
  const Scalar T_ref = 300.0L;

  Antioch::SutherlandViscosity<Scalar> mu(mu_ref,T_ref);

  std::cout << mu << std::endl;

  PairScalars T = example;
  PairScalars mu_exact = example;
  PairScalars mu_exact2 = example;

  for (unsigned int tuple=0; tuple != ANTIOCH_N_TUPLES; ++tuple)
    {
      T[2*tuple  ] = 1521.2L;
      T[2*tuple+1] = 1721.2L;

      // bc with scale=40 gives
      mu_exact[2*tuple  ] = .0325778060534850406481862157435995107036L;
      mu_exact[2*tuple+1] = .0353295183373055195000058747316029365368L;

      mu_exact2[2*tuple  ] = .0959985656417205050367745642313443587197L;
      mu_exact2[2*tuple+1] = .1047500160115581483776648561664869285592L;
    }

  int return_flag = 0;

  const Scalar tol = std::numeric_limits<Scalar>::epsilon() * 10;

#ifdef ANTIOCH_HAVE_GRVY
  gt.BeginTimer(testname);
#endif

  PairScalars muT = mu(T);

#ifdef ANTIOCH_HAVE_GRVY
  gt.EndTimer(testname);
#endif

  return_flag = test_viscosity( muT, mu_exact, tol );
  
  const Scalar mu_ref2 = 3.14159e-3L;
  const Scalar T_ref2 = 420.42L;

  mu.reset_coeffs(mu_ref2,T_ref2);

#ifdef ANTIOCH_HAVE_GRVY
  gt.BeginTimer(testname);
#endif

  muT = mu(T);

#ifdef ANTIOCH_HAVE_GRVY
  gt.EndTimer(testname);
#endif

  return_flag = test_viscosity( muT, mu_exact2, tol );

  return return_flag;
}