GitLab

Introduced the concept of extended bounding box in ChebyshevTensorial kernel (ONLY supported for NON_HOMOGENEOUS kernels yet) and provided corresponding tests for interpolator.

Some more cleanup in MatrixKernel class (renaming DIM to NCMP, to avoid confusion in other applications) as well as in Chebyshev/Uniform Tensorial tests.

Redesigned direct DFT and FFT classes (provided a separate complex valued FFT and templatized direct DFT with physical value type); Provided test for C-interfaced Lapack functions such as Cholesky Decomposition (TODO add SVD and QRD).

Introduced core width in R_IJ and R_IJK kernels; Fixed R_IJK (scheme: p_i=R_ijk*q_jk, BEWARE: antisymmetry and non_homogeneity strongly affect P2P and MatrixKernel, force not yet implemented); Improved consistency with potential theory for tensorial matrix kernels by defining number of phys vals NPV and number of potential vals NPOT (NRHS=NPV, NLHS=NPOT*NRHS).

Implemented dense tensorial Chebyshev kernel + add test, fixed some failing utests by comparing RELATIVE errors instead of absolute.

Introduced tensorial physical value, potential and force (through templatization of P2PParticleContainer with dimensions NRHS and NLHS, default NRHS=NLHS=1). ChebTensorial kernel does not support this yet (TODO apply same modif on ChebInterpolator).

Implemented a tensorial version for ChebyshevSym kernel (currently in separate files for clarity/safety, TODO finalize and merge), cleaned up tensorial Uniform kernel.

Introduced tensorial kernels for Uniform FMM (NB: Chebyshev UCB incompatible, TODO Chebyshev Sym), tested for kernel R_{,ij} and its derivative, fixed multidimensionnal fft, + some cleanup.

Change to kernel constructor prototype for Chebyshev and Uniform. Changes propagated to all Test and UTest files (I hope)

Implementation of Symmetric Uniform Kernel, optimized evaluation of derivative of Lagrange polynomials.

Implemented UniformGrid/Lagrange interpolation and factorized interpolation specific elements such as the MatrixKernel, Tensor and Mapping classes + Added required tests.