Data of "Factorized approximate inverse preconditioners in the tensor train format"

Collected results of the numerical experiments of the paper “Factorized approximate inverse preconditioners in the tensor train format” (arXiv:2611.03859) on the spectra of the truncated approximate inverses (Fig. 3), the discrete floor of the anisotropy benchmark quoted in Sec. 5.1 (with the ranks of the exact solution), and the repeated-run statistics of the anisotropic diffusion benchmark (Table 1, Figs. 9-10) and of the Chorin projection pipeline (Table 2, Figs. 11-12). Produced with DifferenTT.jl at commit 3945c32 (Julia 1.12.0, MareNostrum 5 NG nodes, Nvidia Grace CPU superchip), with the scripts in its folder experiments/paper/. The README.md in the archive gives the provenance, the layout of every file, and how to load the data and redraw the figures.