Changelog

Version 4.0.0

CTINT version 4.0.0 is a compatibility release for TRIQS version 4.0.0 that

  • ports the Python bindings from cpp2py to the new c2py + clair framework

  • migrates the single-particle and bosonic quantities to the DLR Matsubara mesh

  • introduces a new per-term alpha tensor with support for dynamic interactions

  • replaces nfft with finufft for the non-uniform Fourier transforms

  • uses the latest app4triqs skeleton

  • migrates the Jenkins CI to the new k8s-based system

  • fixes a number of application issues

We provide a more detailed description of the changes below.

Bindings (c2py + clair)

  • Port the Python bindings from cpp2py to c2py + clair

  • Generate the solver_core and post_process Python modules via c2py_add_module

  • Disable C++20 module scanning for clair-c2py compatibility

  • Update the doxygen documentation in the public headers (params.hpp, container_set.hpp, post_process.hpp, solver_core.hpp) for the c2py docstring pipeline

DLR

  • Migrate the single-particle and bosonic quantities to the DLR Matsubara mesh

  • Adjust the ctint solver to use the DLR mesh version of the Hartree-Fock solver

  • Use the mesh-based triqs_hartree_fock API for the alpha determination

Alpha tensor

  • Implement a new per-term alpha tensor and start the search from the last alpha

  • Restore dynamic D0 interactions for the new per-term alpha tensor

  • Allow n_s = 2 for non-density-density terms

  • Add an auxiliary spin-flip move

NFFT / finufft

  • Replace nfft with finufft (v2.5.1) for the non-uniform Fourier transforms; set nfft_tol=1e-14

  • Extend nfft_buf_t with type-3 and direct DFT modes and refactor the direct NUDFT kernel with rank-specialized algorithms

  • Build finufft with a portable architecture by default (no -march=native)

  • Relax the default finufft type-3 tolerance to 1e-13

Measurements

  • Migrate auto_corr_time to the new TRIQS log_binning API and add density observables

  • Add error-bar estimation for average_sign and average_k

  • Enable measure_density by default

General

  • Port ctint to TRIQS 4.0 (triqs.gf -> triqs.gfs)

  • Use parity_sort/insertion_sort for insert and remove moves

  • Add rethrow_exception to solve_params_t and backwards compatibility for insertion parameters

  • Install triqs_hartree_fock as part of the ctint installation

  • Convert the implementation notes to reStructuredText and update them for the new alpha tensor

cmake / deps

  • Bump the triqs_hartree_fock dependency version to 4.0

  • Increase the h5diff test tolerance to 5e-5 for BLAS portability

jenkins / ghactions

  • Migrate the Jenkins CI to the new k8s-based system (#26)

  • Synchronize the GitHub Actions configuration with app4triqs

We thank all contributors: Marco Barbone, Jennifer Coulter, Thomas Hahn, Alexander Hampel, Marcel Klett, Henri Menke, Dylan Simon, Nils Wentzell

Version 3.1.0

CTINT version 3.1.0 is a compatibility release for TRIQS version 3.1.0 that

  • uses the latest app4triqs/3.1.x skeleton

  • switches documentation to read-the-docs theme

  • improves ghactions and jenkins configuration

  • fixes a number of application issues

We provide a more detailed description of the changes below.

General

  • Port ctint to triqs 3.1

  • Fix runaway memory in G2c_from_M4

  • Expose det_manip parameters to solver

  • Fix compiler warnings

  • Add triqs_ctint::measures::auto_corr_time and enable by default

  • Change measure_density default from true to false

  • Adjust ctint to changes in gf_struct object

  • Add missing h5 write/read for measure_density parameter

  • Remove rerun.py test as identical to solver_h5io

  • Be sure to ignore build directories in .dockerignore

  • Fix type of n_tau_M3_del from double to int in post_processing

  • Fix move constructor of nfft_buf_t to properly call rebind

doc

  • Fix sphinx recursion error and two build warnings

  • Update implementation notes to latest version

cmake

  • Avoid policy warning for CMP0115

  • Add option to compile with MSAN

gh-actions

  • brew install nfft from wentzell/triqs/nfft

We thank all contributors: Michel Ferrero, Alexander Hampel, Henri Menke, Dylan Simon, Nils Wentzell

Version 3.0.1

Consistently put bosonic frequency first for objects with mixed bosonic and fermionic frequencies.

Version 3.0.0

ctint version 3.0.0 is a compatibility release for TRIQS version 3.0.0 that

  • introduces compatibility with Python 3 (Python 2 no longer supported)

  • adds a cmake-based dependency management

  • fixes several application issues

Version 2.2.0

ctint version 2.2.0 is a compatibility release for TRIQS version 2.2.0

This is the initial release for this project.