dft_tools/test/speed/gf_s.cpp

#define TRIQS_ARRAYS_ENFORCE_BOUNDCHECK

//#define TRIQS_ARRAYS_CHECK_WEAK_REFS

#include <triqs/gfs.hpp>
using namespace triqs::gfs;
using namespace triqs::arrays;
#define TEST(X) std::cout << BOOST_PP_STRINGIZE((X)) << " ---> " << (X) << std::endl << std::endl;
#include <triqs/gfs/local/functions.hpp>

const int nl_interne = 1000;
const int N = 1000;

typedef double VALUE_TYPE;
// typedef int VALUE_TYPE;
// inline VALUE_TYPE fnt(size_t i) { return i*(i+2.0)*(i-8.0);}
inline VALUE_TYPE fnt(size_t i) { return i; } //*(i+2.0)*(i-8);}
// inline VALUE_TYPE fnt(size_t i) { return i*(i+2.0)*(i-8);}

struct with_g {
 void operator()() {

  double beta = 1;
  auto G = gf<imfreq>{{beta, Fermion, N}, {2, 2}};
  G() = 0;

  for (int u = 0; u < nl_interne; ++u)
   // for (int i =0; i<N-1; ++i) G.on_mesh(i)(0,0) = fnt(i);
   for (int i = 0; i < N - 1; ++i) G[i](0, 0) = fnt(i);
 }
};

struct array_code {
 void operator()() {

  double beta = 1;
  auto G = gf<imfreq>{{beta, Fermion, N}, {2, 2}};
  G() = 0;
  auto V = G.data();

  for (int u = 0; u < nl_interne; ++u)
   for (int i = 0; i < N - 1; ++i) V(i, 0, 0) = fnt(i);
 }
};



#include "./speed_tester.hpp"
int main() {
 try {
  speed_tester<array_code>(100);
  speed_tester<with_g>(100);
 }
 TRIQS_CATCH_AND_ABORT;
}