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dft_tools/triqs/gfs/domains/discrete.hpp
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

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/*******************************************************************************
*
* TRIQS: a Toolbox for Research in Interacting Quantum Systems
*
* Copyright (C) 2012 by M. Ferrero, O. Parcollet
*
* TRIQS is free software: you can redistribute it and/or modify it under the
* terms of the GNU General Public License as published by the Free Software
* Foundation, either version 3 of the License, or (at your option) any later
* version.
*
* TRIQS is distributed in the hope that it will be useful, but WITHOUT ANY
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License along with
* TRIQS. If not, see <http://www.gnu.org/licenses/>.
*
******************************************************************************/
#ifndef TRIQS_GF_DISCRETE_DOMAIN_H
#define TRIQS_GF_DISCRETE_DOMAIN_H
#include "../tools.hpp"
#include <map>
namespace triqs { namespace gfs {
/// The domain
class discrete_domain {
size_t Nmax;
std::vector<std::string> _names;// name of the points (e.g. for block)
std::map<std::string,int> _inv_names;
void init_inv() {
for (size_t i =0; i<Nmax; ++i) { _inv_names[_names[i]]=i;}
}
public:
typedef long point_t;
size_t size() const { return Nmax;};
discrete_domain (size_t Nmax_=1) : Nmax(Nmax_) {
for (size_t i =0; i<Nmax; ++i) { std::stringstream fs; fs<<i; _names.push_back(fs.str());}
init_inv();
}
discrete_domain (std::vector<std::string> && Names) : Nmax(Names.size()), _names(Names) {init_inv(); }
discrete_domain (std::vector<std::string> const & Names) : Nmax(Names.size()), _names(Names) { init_inv();}
discrete_domain (std::initializer_list<std::string> const & Names) : Nmax(Names.size()), _names(Names) { init_inv();}
std::vector<std::string> const & names() const { return _names;}
int index_from_name(std::string const & s) const { return _inv_names.at(s);}
bool operator == (discrete_domain const & D) const { return (Nmax == D.Nmax);}
/// Write into HDF5
friend void h5_write (h5::group fg, std::string subgroup_name, discrete_domain const & d) {
h5::group gr = fg.create_group(subgroup_name);
h5_write(gr,"n_max",d.Nmax);
}
/// Read from HDF5
friend void h5_read (h5::group fg, std::string subgroup_name, discrete_domain & d){
h5::group gr = fg.open_group(subgroup_name);
long n;
h5_read(gr,"n_max",n);
d = discrete_domain(n);
}
// BOOST Serialization
friend class boost::serialization::access;
template<class Archive>
void serialize(Archive & ar, const unsigned int version) {
ar & boost::serialization::make_nvp("n_max",Nmax);
ar & boost::serialization::make_nvp("names",_names);
}
};
}}
#endif