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Commit Graph

38 Commits

Author SHA1 Message Date
Priyanka Seth
71fa498833 API change for tail fitters
python fit_tail, replace_by_tail ==> fit_tail_depr, replace_by_tail_depr
c++ set_tail_from_fit ==> fit_tail
2014-10-01 10:52:32 +02:00
Michel Ferrero
d73c1cf00c Fix and wrap set_tail_from_fit
The c++ version of the tail fit is wrapped to python. I also changed
slightly the code so that when replace_by_fit is true the data is
changed all the way to the end of the Matsubara axis not only on the
interval where the fit was done.
2014-09-26 12:35:59 +02:00
Olivier Parcollet
7cf7d09c77 Fix #112 and put back g +=/-= matrix for imfreq
- The issue comes from the fact that the default generated
  += and co by the Python API is the one for immutable types, like int.
- Indeed, in python, for an int :
  x=1
  id(x)
  140266967205832
  x+=1
  id(x)
  140266967205808
- For a mutable type, like a gf, it is necessary to
  add explicitly the xxx_inplace_add functions.
- Added :
   - the generation of the inplace_xxx functions
   - a method in class_ in the wrapper generator that
     deduce all += operator from the + operators.
   - this assumes that the +=, ... are defined in C++.
   - The generation of such operators are optional, with option
     with_inplace_operators in the arithmetic flag.
- Also, added the overload g += M and g -= M for
  g : GfImfreq, M a complex matrix.
  Mainly for legacy Python codes.
2014-09-06 19:07:34 +02:00
Olivier Parcollet
8d7dd34aeb fourier. Add one overload to make_gf_from_fourier API.
- To be able to give explicitely the number of point.
- two functions : if the number of points is not given, take as before.
- updated the doc.
2014-07-03 19:50:16 +02:00
Michel Ferrero
cbfecdf623 Fix make_mesh_fourier_compatible to correct size
The number of points in imaginary time must be at least twice
as big as the number of pionts in matsubara frequencies.
2014-07-02 22:56:06 +02:00
Michel Ferrero
88f8e4cce4 Fix bug with full bins in Fourier transforms
I also added a test to make sure the time mesh is twice as
long as the frequency mesh. Obviously now some tests don't
pass... I will fix them in the next commit.
2014-07-01 18:04:30 +02:00
Olivier Parcollet
2d071bb74b Remove Cython & prepare wrapper for applis.
- removed cython : macro, detection, pxd, etc...
- adapt wrapper tools for external applis.
- cleaned doc for cython
2014-05-30 19:34:13 +02:00
Olivier Parcollet
cfe3532c94 array & gf transpose
- implement transposed_view for arrays.
- .transpose method for gf
- wrapped to python
- add call op. for GfImTime, using C++
- Added ChangeLog
- rm matrix_stack
- start cleaning old code
2014-05-22 16:08:23 +02:00
Olivier Parcollet
3a9f986461 gf: add a few functions in C++ 2014-05-11 21:47:52 +02:00
Olivier Parcollet
376056f7bd gf : add indices, name in C++ 2014-05-11 21:47:51 +02:00
Olivier Parcollet
8c725f8d5e Work on compilation speed.
- h5/make_h5.... only used in parameters.
- old boost includes before C++11
- remove boost serialization, make macro TRIQS_MAKE_NVP temporarely
- remove boost::is_complex (can be written in 2 lines...)
- move some lib in cpp
2014-05-02 20:49:19 +02:00
Michel Ferrero
82e3b3f02b Fix a bug in bosonic Fourier transform
Appears for full_bins and bosonic GFs.
2014-04-01 17:09:04 +02:00
Olivier Parcollet
8045598534 Attempt to fix gelss call in fit_tail.
uncommenting the resize fix the issue on linux.
valgrind reports no error any more.
What was the problem ?
2014-03-19 14:01:26 +01:00
tayral
558df98786 Split cpp from hpp (fit_tail) 2014-03-19 14:00:53 +01:00
Michel Ferrero
5805c7c3aa Fix in off-diagonal elements of density()
This should fix the bug noticed by Leonid in off-diagonal
elements of the density matrix.

  modified:   triqs/gfs/local/functions.cpp
2014-03-08 13:46:31 +01:00
tayral
8c1f7945e4 Various small fixes in imfreq Gfs.
- documentation of matsubara_freq_mesh
- fixing doc of fit_tail
- fixing right conventions for matsubara_freq_mesh
2014-02-19 11:59:47 +00:00
Olivier Parcollet
2b315fcdea gf : corrections
- correct previous commit (for scalar gf, the new check was not compiling)
- correct windowing of linear mesh (left point corrected as right point for rounding error
2014-02-18 19:25:29 +01:00
Olivier Parcollet
b76a61680c gf make_gf_from_g_and_tail : add security
- if shape (g) != shape(t) -> exception
2014-02-18 17:15:59 +01:00
tayral
708c47305c Extending fit_tail for scalar_valued (+ test)
-> extension by using reinterpret_scalar_valued_as_matrix_valued
2014-02-18 16:16:14 +01:00
tayral
da7e7ec971 Fixed fit_tail for pos. and neg. matsub + bosonic
-> code was previously assuming mesh with only positive, fermionic matsubara freqs
-> changed wn_min to n_min (was misleading, since it was an index, not a frequency) / same for <-> max
-> changed doc accordingly
2014-02-18 16:16:14 +01:00
tayral
82a6d21939 Fixed computation of density for full matsub mesh
-> Previously, calculation was implicitly assuming a mesh with only positive matsubara frequencies.
-> Added corresponding test
-> Also added test of density calculation with or without correct tail.
2014-02-18 16:16:14 +01:00
Hartmut Hafermann
65ed3a8dc2 gf: new tail fitting 2014-02-03 22:22:21 +01:00
Olivier Parcollet
85141350e7 remove warnings in compilation
- triqs & tests now compiles with -Wall on clang (3.2)
Checked on OS X.
Todo : recheck on other compilers.
2014-01-30 22:17:28 +01:00
tayral
1811d53179 Added density for scalar_valued gf (and test thereof) 2014-01-20 17:55:07 +01:00
Olivier Parcollet
bdac3e159c work on doc for gf, and details.
- little details : code cleaning, clang formatting,  along
with documentation writing for c++ gf.
- separated the mesh in small class for better doc.
- work on documentation : reorganize specialisation, ...
2013-12-30 22:32:16 +01:00
Olivier Parcollet
9ce291d640 gf: update gf imfreq for g( om - nu) case
DRAFT : to be tested further...

- update gf<imfreq>
- write a specific mesh for matsubara frequencies
- now the cast series is :
  mesh_pt --> matsubara_freq --> complex<double>
- matsubara_freq is just the matsubara frequency
- arithmetic of the mesh_pt casted to matsubara_freq
- arithmetic of matsubara_freq is casted to complex, except + and -,
  which are kept as matsubara_freq.
- evaluator now accept : int, mesh_pt, and matsubara_freq
  for matsubara_freq : for negative omega, use conjugation
  for omega outside windows, evaluate the tail on omega.
- as a result : g( om - nu) where om, nu are 2 meshes points,
  is the extrapolation outside the grid if necessary.
- updated tests
- added evaluation for tail.
2013-11-18 23:41:32 +01:00
Olivier Parcollet
8be0c208c2 gf.Fourier scalar_valued. Fix tail size
- tail is 0, but must be of dimension (1,1)
2013-10-31 14:54:43 +01:00
tayral
4c1c14b989 gf:fourier Add missing function in no_tail case
- one only the Matsubara case.
- TODO: the real omega case : decide and implement.
- impl: remove superfluous dispatch in x_impl
2013-10-31 14:41:48 +01:00
Olivier Parcollet
579368f24b gf. Clean Fourier
- lazy_fourier and co --> fourier
- ex fourier --> make_gf_from_fourier to make a new gf
- = fourier (g) works only iif lhs is a view, like scalar.
- updated python (commented fourier method).
2013-10-23 18:46:55 +02:00
Olivier Parcollet
9edda8724d implement gf_const_view 2013-10-21 15:12:53 +02:00
Olivier Parcollet
9002c1e456 implement array_const_view 2013-10-21 15:12:53 +02:00
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
Michel Ferrero
84df58aad7 Fix upper bound problem in tails
There was a mistake in the computation of omax in the tail multiplication.

  modified:   triqs/gfs/local/functions.cpp
  modified:   triqs/gfs/local/tail.hpp
2013-09-13 12:16:04 +02:00
Michel Ferrero
f0dfabff38 Change tail implementation with fixed array size
Now the tail have a fixed size. It actually makes everything simpler. I took
order_min = -1 and order_max = 8. This makes the tails compatible with the
previous implementation. However we might want to change this to something like
-10, 10 so that they are self-contained. This commit should also fix issue #11.
2013-09-12 15:21:56 +02:00
Olivier Parcollet
9790fe8bd0 Work on gf
- clean curry.
- start testing.
2013-09-06 16:00:51 +02:00
Olivier Parcollet
17a741ad9e arrays: rm has_view_type_tag & add_views
- has_view_type_tag mechanism was replaced by a decltype long ago.
Cleaning since it seems to work on all supported compiler now.

- removed add_views : not used any more.
2013-08-27 13:43:57 +02:00
Olivier Parcollet
41bc8d0338 changing non_view_type to regular_type
- cosmetic : for clarity of the code.
2013-08-27 13:43:57 +02:00
Olivier Parcollet
bd4926157c [API BREAK] rename directory gf -> gfs 2013-07-29 11:53:02 +02:00