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dft_tools/test/triqs/gfs/curry_and_fourier.cpp
Olivier Parcollet 39edb2f846 [API change] gf : factories -> constructors
- Make more general constructors for the gf.
  gf( mesh, target_shape_t)
- remove the old make_gf for the basic gf.
- 2 var non generic gf removed.
- clean evaluator
- add tensor_valued
- add a simple vertex test.
- clean specialisation
- Fix bug introduced in 1906dc3
- forgot to resize the gf in new version of operator =
- Fix make_singularity in gf.hpp

- clean resize in operator =

- update h5 read/write for block gf
  - changed a bit the general trait to save *all* the gf.
  - allows a more general specialization, then a correct for blocks

- NOT FINISHED : need to save the block indice for python.
  How to reread ?
  Currently it read the blocks names and reconstitute the mesh from it.
  Is it sufficient ?

- clean block constructors

 - block constructors simplest possible : an int for the number of blocks
 - rest in free factories.
 - fixed the generic constructor from GfType for the regular type :
   only enable iif GfType is ImmutableGreenFunction

- multivar. fix linear index in C, and h5 format

  - linear index now correctly flatten in C mode
    (was in fortran mode), using a simple reverse of the tuple in the folding.
  - fix the h5 read write of the multivar fonctions
   in order to write an array on dimension # variables + dim_target
   i.e. without flattening the indices of the meshes.
   Easier for later data analysis, e.g. in Python.

- merge matrix/tensor_valued. improve factories

  - matrix_valued now = tensor_valued<2>
    (simplifies generic code for h5).
  - factories_one_var -> factories : this is the generic case ...
    only a few specialization, code is simpler.

- clef expression call with rvalue for *this
- generalize matrix_proxy to tensor and clean

 - clean exception catch in tests

  - exception catching catch in need in test
    because the silly OS X does not print anything, just "exception occurred".
    Very convenient for the developer...
  - BUT, one MUST add return 1, or the make test will *pass* !!
  - --> systematically replace the catch by a macro TRIQS_CATCH_AND_ABORT
    which return a non zero error code.
   - exception : curry_and_fourier which does not work at this stage
   (mesh incompatible).

- gf: clean draft of gf 2 times
  - comment the python interface for the moment.
  - rm useless tests
2013-10-21 15:11:44 +02:00

48 lines
1.4 KiB
C++

#define TRIQS_ARRAYS_ENFORCE_BOUNDCHECK
#include <triqs/gfs.hpp>
#include <triqs/gfs/product.hpp>
#include <triqs/gfs/curry.hpp>
#include <triqs/gfs/local/fourier_real.hpp>
#include <triqs/gfs/local/fourier_matsubara.hpp>
#include <triqs/arrays.hpp>
using namespace triqs::gfs;
int main() {
try {
double beta =1.;
double tmin=0.;
double tmax=10;
double wmin=0.;
double wmax=1.0;
int n_re_freq=100;
int n_im_freq=100;
int Nt=100;
triqs::clef::placeholder<0> w_;
triqs::clef::placeholder<1> wn_;
triqs::clef::placeholder<2> tau_;
auto G_w_wn = gf<cartesian_product<refreq,refreq>, scalar_valued>( {gf_mesh<refreq>(wmin, wmax, n_re_freq), gf_mesh<refreq>(wmin, wmax, n_re_freq)});
auto G_w_tau = gf<cartesian_product<refreq,retime>, scalar_valued>( {gf_mesh<refreq>(wmin, wmax, n_re_freq), gf_mesh<retime>(-tmax, tmax, Nt)});
G_w_wn(w_,wn_)<<1/(wn_-1)/( pow(w_,3) );
G_w_tau(w_,tau_)<< exp( -2*tau_ ) / (w_*w_ + 1 );
auto G_w_wn_curry0 = curry<0>(G_w_wn);
auto G_w_tau_curry0 = curry<0>(G_w_tau);
for (auto const & w : G_w_wn_curry0.mesh()) G_w_wn_curry0[w] = lazy_fourier(G_w_tau_curry0[w]);
G_w_wn_curry0[w_] << lazy_fourier(G_w_tau_curry0[w_]);
curry<0>(G_w_wn) [w_] << lazy_fourier(curry<0>(G_w_tau)[w_]);
}
// temp fix : THE TEST DOES NOT RUN !!
//TRIQS_CATCH_AND_ABORT;
catch(std::exception const & e ) { std::cout << "error "<< e.what()<< std::endl;}
}