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dft_tools/test/triqs/gfs/vertex.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

86 lines
1.8 KiB
C++

#define TRIQS_ARRAYS_ENFORCE_BOUNDCHECK
#include <triqs/gfs.hpp>
#include <triqs/gfs/local/fourier_real.hpp>
using namespace triqs::gfs;
using triqs::clef::placeholder;
int main() {
// scalar valued gf_vertex
using gf_vertex_t = gf<cartesian_product<imfreq,imfreq,imfreq>, scalar_valued>;
using gf_vertex_tensor_t = gf<cartesian_product<imfreq,imfreq,imfreq>, tensor_valued<3>>;
try {
double beta =10.0;
int n_im_freq=10;
auto m = gf_mesh<imfreq> {beta, Fermion, n_im_freq};
auto vertex = gf_vertex_t { {m,m,m} };
auto vertex2 = gf_vertex_t{}; //vertex;
placeholder<0> w0_;
placeholder<1> w1_;
placeholder<2> w2_;
vertex (w0_, w1_, w2_) << w0_ + 2.3*w1_ + 3.1*w2_;
vertex [{0,0,0}] = 10;
std::cout << " vertex [{1,6,3}] " << vertex [{1,6,3}] << std::acos(-1)*(2*1 +1)/10.0 + 2.3*std::acos(-1)*(2*6 +1)/10.0 + 3.1*std::acos(-1)*(2*3 +1)/10.0 << std::endl ;
auto v = on_mesh(vertex);
v(0,0,0) *=2;
std::cout << vertex(0,0,0)<< std::endl;
//saving
{
H5::H5File file("vertex1.h5", H5F_ACC_TRUNC );
h5_write(file, "v", vertex);
}
// loading
{
H5::H5File file("vertex1.h5", H5F_ACC_RDONLY );
h5_read(file, "v", vertex2);
}
//resaving
{
H5::H5File file("vertex1b.h5", H5F_ACC_TRUNC );
h5_write(file, "v", vertex2);
}
// now with indices
auto vertex3 = gf_vertex_tensor_t { {m,m,m} , {2,2,2} };
auto vertex3b = vertex3;
vertex3 [{0,0,0}](0,0,0) = 10;
std::cout << vertex3(0,0,0)<< std::endl;
//saving
{
H5::H5File file("vertex3.h5", H5F_ACC_TRUNC );
h5_write(file, "v", vertex3);
}
// loading
{
H5::H5File file("vertex3.h5", H5F_ACC_RDONLY );
h5_read(file, "v", vertex3b);
}
//resaving
{
H5::H5File file("vertex3b.h5", H5F_ACC_TRUNC );
h5_write(file, "v", vertex3b);
}
}
TRIQS_CATCH_AND_ABORT;
}