wyj
0a46a7095b
Add error-controlled DP5(4) integration and trusted first-crossing localization, including non-monotonic energy thresholds and representable-time stepping. Preserve adaptive state and independent step/time retry grants across RayPool, refinement and movie scheduling. Expose numerical controls, record actual persistent-sample costs, and add v3 lens-map provenance with legacy v2 RK4 import. Use DP54 by default and select an 8M Schwarzschild maximum step from bounded scans and a two-run 4K comparison. Retain the conservative minimum-step guard and document critical-ray and backend capability limits. Archive self-contained benchmark inputs and raw output; keep fixed RK4 HDR references explicit. Validation: make -B -j4 BUILD_TYPE=Debug test passed; explicit RK4 HDR references have zero differences. Bounded convergence checks, benchmark reproduction, Release build and focused reviews passed. No numerical-relativity backend is added.
83 lines
3.3 KiB
Python
Executable File
83 lines
3.3 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Two bounded tight-tolerance mesh references and comparisons (no 4K).
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Usage:
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run_mesh_reference.py [OUT_DIR]
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OUT_DIR defaults to <repo>/local/adaptive_bounds_mesh and must already contain
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the eight ``<scene>_hmax<h>.grlens`` maps from ``run_mesh.py``. The renderer
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binary is expected at build/Release/schwarzschild_sky (see README for the make
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command). Same one-point synthetic dim catalog, no external CSV.
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"""
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import json
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import os
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from pathlib import Path
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import shlex
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import subprocess
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import sys
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import time
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from mesh_maps import load, compare
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ROOT = Path(__file__).resolve().parents[2]
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OUT = Path(sys.argv[1]).resolve() if len(sys.argv) > 1 else \
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ROOT / 'local/adaptive_bounds_mesh'
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BIN = ROOT / 'build/Release/schwarzschild_sky'
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BUILD_CMD = 'make -j4 BUILD_TYPE=Release SPACETIME=schwarzschild backend'
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ENV = dict(os.environ, OMP_NUM_THREADS='8', OMP_DYNAMIC='FALSE')
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def scene_args(scene):
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if scene == 'r100':
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return ['--observer-radius', '100', '--look-ra-deg', '262.5',
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'--look-dec-deg', '-30', '--fov-deg', '45',
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'--refine-jacobian-min', '.2']
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return ['--observer-position', '2.1', '0', '0', '--observer-velocity',
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'0', '0', '0', '--look-ra-deg', '0', '--look-dec-deg', '0',
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'--fov-deg', '90']
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def main():
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if not BIN.exists():
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raise SystemExit(f'missing {BIN}; build it first:\n {BUILD_CMD}')
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OUT.mkdir(parents=True, exist_ok=True)
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catalog = OUT / 'single_dim_star.csv'
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if not catalog.exists():
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catalog.write_text('longitude_deg,latitude_deg,temperature_K,amplitude\n'
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'262.5,-30,6000,1e-30\n')
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results = {}
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for scene in ('r100', 'r2p1'):
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name = scene + '_tight_reference'
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cmd = [str(BIN), '--integrator', 'dp54', '--width', '320',
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'--height', '180', '--coarse-cell-pixels', '8',
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'--refine-max-level', '3', '--catalog', str(catalog),
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'--exposure', '1', '--psf-min-y', '1e-20',
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'--psf-relative-tail', '1e-4', '--ode-min-step', '1e-12',
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'--ode-max-step', '.5', '--ode-rtol', '1e-12',
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'--ode-atol-x', '1e-12', '--ode-atol-pi', '1e-12',
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'--ode-atol-l', '1e-12', '--verbose',
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'--lens-map-output', str(OUT / (name + '.grlens')),
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'--output', str(OUT / (name + '.png')), *scene_args(scene)]
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start = time.perf_counter()
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with (OUT / (name + '.log')).open('w') as log:
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log.write('OMP_NUM_THREADS=8 OMP_DYNAMIC=FALSE ' +
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shlex.join(cmd) + '\n')
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log.flush()
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subprocess.run(cmd, cwd=ROOT, env=ENV, stdout=log,
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stderr=subprocess.STDOUT, check=True, timeout=180)
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info, ref = load(OUT / (name + '.grlens'))
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info['wall_seconds'] = time.perf_counter() - start
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results[name] = info
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print(name, json.dumps(info), flush=True)
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for upper in (.5, 2, 8, 32):
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_, vertices = load(OUT / f'{scene}_hmax{upper:g}.grlens')
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result = compare(ref, vertices)
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results[f'{scene}_ref_vs_{upper:g}'] = result
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print(scene, 'ref vs', upper, json.dumps(result), flush=True)
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(OUT / 'reference_summary.json').write_text(
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json.dumps(results, indent=2) + '\n')
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if __name__ == '__main__':
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main()
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