--- pretty_name: jax-fli forward-modelling experiments license: mit language: - en tags: - cosmology - large-scale-structure - n-body - particle-mesh - weak-lensing - lightcone - healpix - jax size_categories: - n<1K configs: - config_name: 00-cosmogrid-kappa data_files: 00-cosmogrid/kappa/cosmogrid_sample_kappa.parquet - config_name: 00-cosmogrid-density data_files: 00-cosmogrid/density/cosmogrid_density_nside2048_shell*.parquet - config_name: 00-cosmogrid-born-des data_files: 00-cosmogrid/kappa/kappa_born_des.parquet - config_name: 00-cosmogrid-born-s3 data_files: 00-cosmogrid/kappa/kappa_born_s3.parquet - config_name: 01-resolution-density data_files: 01-resolution/density/*.parquet - config_name: 01-resolution-spectra data_files: 01-resolution/spectra/*.parquet - config_name: 01-resolution-perf data_files: 01-resolution/perf/perf_pm.parquet - config_name: 06-cosmogrid-shells-perf data_files: 06-cosmogrid-shells/perf/perf_pm.parquet - config_name: 06-cosmogrid-shells-density-2bin-fullsky-pencil data_files: 06-cosmogrid-shells/density/cosmogrid_2bin_fullsky_pencil/shell_*.parquet - config_name: 06-cosmogrid-shells-density-2bin-fullsky-slab data_files: 06-cosmogrid-shells/density/cosmogrid_2bin_fullsky_slab/shell_*.parquet - config_name: 06-cosmogrid-shells-density-2bin-quadrant-pencil data_files: 06-cosmogrid-shells/density/cosmogrid_2bin_quadrant_pencil/shell_*.parquet - config_name: 06-cosmogrid-shells-density-2bin-quadrant-slab data_files: 06-cosmogrid-shells/density/cosmogrid_2bin_quadrant_slab/shell_*.parquet - config_name: 06-cosmogrid-shells-density-3bin-fullsky-pencil data_files: 06-cosmogrid-shells/density/cosmogrid_3bin_fullsky_pencil/shell_*.parquet - config_name: 06-cosmogrid-shells-density-3bin-fullsky-slab data_files: 06-cosmogrid-shells/density/cosmogrid_3bin_fullsky_slab/shell_*.parquet - config_name: 06-cosmogrid-shells-density-3bin-quadrant-pencil data_files: 06-cosmogrid-shells/density/cosmogrid_3bin_quadrant_pencil/shell_*.parquet - config_name: 06-cosmogrid-shells-density-3bin-quadrant-slab data_files: 06-cosmogrid-shells/density/cosmogrid_3bin_quadrant_slab/shell_*.parquet - config_name: 06-cosmogrid-shells-density-512-2bin-fullsky-pencil data_files: 06-cosmogrid-shells/density_512/cosmogrid_2bin_fullsky_pencil_density_512.parquet - config_name: 06-cosmogrid-shells-density-512-2bin-fullsky-slab data_files: 06-cosmogrid-shells/density_512/cosmogrid_2bin_fullsky_slab_density_512.parquet - config_name: 06-cosmogrid-shells-density-512-2bin-quadrant-pencil data_files: 06-cosmogrid-shells/density_512/cosmogrid_2bin_quadrant_pencil_density_512.parquet - config_name: 06-cosmogrid-shells-density-512-2bin-quadrant-slab data_files: 06-cosmogrid-shells/density_512/cosmogrid_2bin_quadrant_slab_density_512.parquet - config_name: 06-cosmogrid-shells-density-512-3bin-fullsky-pencil data_files: 06-cosmogrid-shells/density_512/cosmogrid_3bin_fullsky_pencil_density_512.parquet - config_name: 06-cosmogrid-shells-density-512-3bin-fullsky-slab data_files: 06-cosmogrid-shells/density_512/cosmogrid_3bin_fullsky_slab_density_512.parquet - config_name: 06-cosmogrid-shells-density-512-3bin-quadrant-pencil data_files: 06-cosmogrid-shells/density_512/cosmogrid_3bin_quadrant_pencil_density_512.parquet - config_name: 06-cosmogrid-shells-density-512-3bin-quadrant-slab data_files: 06-cosmogrid-shells/density_512/cosmogrid_3bin_quadrant_slab_density_512.parquet - config_name: 06-cosmogrid-shells-spectra-512-2bin-fullsky-pencil data_files: 06-cosmogrid-shells/spectra_512/spectra_cosmogrid_2bin_fullsky_pencil_density_512.parquet - config_name: 06-cosmogrid-shells-spectra-512-2bin-fullsky-slab data_files: 06-cosmogrid-shells/spectra_512/spectra_cosmogrid_2bin_fullsky_slab_density_512.parquet - config_name: 06-cosmogrid-shells-spectra-512-2bin-quadrant-pencil data_files: 06-cosmogrid-shells/spectra_512/spectra_cosmogrid_2bin_quadrant_pencil_density_512.parquet - config_name: 06-cosmogrid-shells-spectra-512-2bin-quadrant-slab data_files: 06-cosmogrid-shells/spectra_512/spectra_cosmogrid_2bin_quadrant_slab_density_512.parquet - config_name: 06-cosmogrid-shells-spectra-512-3bin-fullsky-pencil data_files: 06-cosmogrid-shells/spectra_512/spectra_cosmogrid_3bin_fullsky_pencil_density_512.parquet - config_name: 06-cosmogrid-shells-spectra-512-3bin-fullsky-slab data_files: 06-cosmogrid-shells/spectra_512/spectra_cosmogrid_3bin_fullsky_slab_density_512.parquet - config_name: 06-cosmogrid-shells-spectra-512-3bin-quadrant-pencil data_files: 06-cosmogrid-shells/spectra_512/spectra_cosmogrid_3bin_quadrant_pencil_density_512.parquet - config_name: 06-cosmogrid-shells-spectra-512-3bin-quadrant-slab data_files: 06-cosmogrid-shells/spectra_512/spectra_cosmogrid_3bin_quadrant_slab_density_512.parquet - config_name: 00-cosmogrid-density-spectra data_files: 00-cosmogrid/density_spectra/*.parquet - config_name: 00-cosmogrid-kappa-spectra data_files: 00-cosmogrid/kappa_spectra/*.parquet - config_name: 06-cosmogrid-shells-spectra-2048-2bin-fullsky-pencil data_files: 06-cosmogrid-shells/spectra_2048/spectra_cosmogrid_2bin_fullsky_pencil_2048.parquet - config_name: 06-cosmogrid-shells-spectra-2048-2bin-fullsky-slab data_files: 06-cosmogrid-shells/spectra_2048/spectra_cosmogrid_2bin_fullsky_slab_2048.parquet - config_name: 06-cosmogrid-shells-spectra-2048-2bin-quadrant-pencil data_files: 06-cosmogrid-shells/spectra_2048/spectra_cosmogrid_2bin_quadrant_pencil_2048.parquet - config_name: 06-cosmogrid-shells-spectra-2048-2bin-quadrant-slab data_files: 06-cosmogrid-shells/spectra_2048/spectra_cosmogrid_2bin_quadrant_slab_2048.parquet - config_name: 06-cosmogrid-shells-spectra-2048-3bin-fullsky-pencil data_files: 06-cosmogrid-shells/spectra_2048/spectra_cosmogrid_3bin_fullsky_pencil_2048.parquet - config_name: 06-cosmogrid-shells-spectra-2048-3bin-fullsky-slab data_files: 06-cosmogrid-shells/spectra_2048/spectra_cosmogrid_3bin_fullsky_slab_2048.parquet - config_name: 06-cosmogrid-shells-spectra-2048-3bin-quadrant-pencil data_files: 06-cosmogrid-shells/spectra_2048/spectra_cosmogrid_3bin_quadrant_pencil_2048.parquet - config_name: 06-cosmogrid-shells-spectra-2048-3bin-quadrant-slab data_files: 06-cosmogrid-shells/spectra_2048/spectra_cosmogrid_3bin_quadrant_slab_2048.parquet - config_name: 05b-3bins-density data_files: 05-spacing-n-stepping/05b-3bins/density/*/*.parquet - config_name: 05b-3bins-spectra data_files: 05-spacing-n-stepping/05b-3bins/density_spectra/*.parquet - config_name: 05c-equal-volume-kappa data_files: 05-spacing-n-stepping/05c-equal-volume/kappa/*/*.parquet - config_name: 05c-equal-volume-kappa-spectra data_files: 05-spacing-n-stepping/05c-equal-volume/kappa_spectra/*.parquet - config_name: 11-scaling-spectra data_files: 11-scaling/density_spectra/*.parquet --- # jax-fli experiments Data, samples, and reference catalogs for the [`jax-fli`](https://github.com/ASKabalan/jax-fli) forward-modelling experiments. Each experiment is exposed as one or more HuggingFace dataset *configs*; load a config with `datasets.load_dataset`. ## Experiment 00 — CosmoGrid reference A single CosmoGrid simulation (`cosmo_000001`) packaged as `jax-fli` `Catalog` parquet files, used as reference truth for the lensing / masked-shear experiments. | Config | Field | Shape | NSIDE | Description | |--------|-------|-------|-------|-------------| | `00-cosmogrid-density` | `SphericalDensity` | `(56, 50331648)` | 2048 | Density (rho = N/V, float32) lightcone, 56 per-shell parquet rows out to z <= 1.6 (DES Y3 source depth, see exp 06). One config — **load by streaming**: concatenating all 56 shells into a single Arrow column overflows its INT32 list-offset. | | `00-cosmogrid-kappa` | `SphericalKappaField` | `(4, 3145728)` | 512 | CosmoGrid's own Stage-3 forecast convergence maps, 4 tomographic bins. | | `00-cosmogrid-born-des` | `SphericalKappaField` | `(4, 50331648)` | 2048 | jax-fli Born-approximation convergence from the nside-2048 density lightcone, **DES Y3** source n(z), 4 tomographic bins. | | `00-cosmogrid-born-s3` | `SphericalKappaField` | `(4, 50331648)` | 2048 | jax-fli Born-approximation convergence from the same lightcone, **CosmoGrid Stage-3** source n(z), 4 tomographic bins. | ```python import jax_fli as jfli from datasets import load_dataset from huggingface_hub import snapshot_download from jax_fli.io import Catalog REPO = "ASKabalan/jax-fli-experiments" # --- Forecast convergence (kappa), nside 512: one small config, plain (non-streaming) load --- kappa = Catalog.from_dataset( load_dataset(REPO, "00-cosmogrid-kappa", split="train").with_format("numpy") ).field[0] # SphericalKappaField (4, npix) # --- Born convergence, nside 2048, 4 bins: one ~0.8 GB file per config, plain load --- born_des = Catalog.from_dataset( load_dataset(REPO, "00-cosmogrid-born-des", split="train").with_format("numpy") ).field[0] # SphericalKappaField (4, npix) — DES Y3 source n(z); use "00-cosmogrid-born-s3" for Stage-3 # --- Density lightcone, nside 2048, 56 shells: MUST be streamed --- # A plain load_dataset concatenates the 56 (npix,) shell rows into one Arrow column and overflows its # INT32 list-offset. Snapshot the per-shell parquets (+ README, which carries the config glob), then # stream from the local dir and stack the shells into the (56, npix) lightcone. local = snapshot_download( REPO, repo_type="dataset", allow_patterns=["00-cosmogrid/density/cosmogrid_density_nside2048_shell*.parquet", "README.md"], ) shells = [ Catalog.from_dataset(row).field[0] for row in load_dataset(local, "00-cosmogrid-density", split="train", streaming=True) ] density = jfli.SphericalDensity.stack(shells) # SphericalDensity (56, npix) float32 ``` ## Experiment 01 — Resolution convergence PM mesh-resolution study (512³–3072³, fixed box/steps/cosmology, **independent IC realisation per mesh**) painting 10 comoving HEALPix shells (nside 512, z≈0.017–0.35). See [`docs/5-experiments/01-resolution-convergence`](https://github.com/ASKabalan/jax-fli/tree/main/docs/5-experiments/01-resolution-convergence). **Three configs**, each bundling all five resolutions `m∈{512,1024,2048,2560,3072}` as **rows** (the `01-resolution-density` config additionally carries pencil-decomposition variants at m2560 and m3072, tagged with a `_pencil` suffix on each row's `name`): | Config | Field (per row) | Shape | Rows | |--------|-----------------|-------|------| | `01-resolution-density` | `SphericalDensity` (DENSITY, float64) | `(10, 3145728)` | 7 density maps (5 resolutions + 2 pencil-decomp: m2560, m3072) | | `01-resolution-spectra` | `PowerSpectrum` (ANGULAR_CL, per_plane δ, full-sky) | `(10, 1536)` | 5 raw spectra | | `01-resolution-perf` | jax-hpc-profiler timings, 19 cols (`perf_pm.parquet`) | — | 5 rungs | The raw `perf_pm.csv`, the per-rung perf markdown reports, and the `m.args.log` launch logs sit alongside it in `01-resolution/perf/` (plain files). Rows within a parquet config are ordered by filename, **not** mesh, so index them by each field's `mesh_size`: ```python from datasets import load_dataset from jax_fli.io.catalog import Catalog REPO = "ASKabalan/jax-fli-experiments" cat = Catalog.from_dataset( load_dataset(REPO, "01-resolution-spectra", split="train").with_format("numpy") ) spectra = {int(f.mesh_size[0]): f for f in cat.field} # {512: PowerSpectrum(10,1536), 1024: ..., ...} ```