The dataset viewer is not available for this split.
Error code: StreamingRowsError
Exception: CastError
Message: Couldn't cast
passed: bool
field_consistency_passed: bool
acceptance_errors: list<item: null>
child 0, item: null
flow_model: string
end_time_s: double
transient_steps: int64
native_fluid_cells: int64
moving_mesh: bool
snapshots: list<item: struct<step: int64, time_s: double, mass_half_kg: double, mass_relative_error: double, EO (... 489 chars omitted)
child 0, item: struct<step: int64, time_s: double, mass_half_kg: double, mass_relative_error: double, EOS_relative_ (... 477 chars omitted)
child 0, step: int64
child 1, time_s: double
child 2, mass_half_kg: double
child 3, mass_relative_error: double
child 4, EOS_relative_error: double
child 5, mesh_error_m: double
child 6, native_volume_relative_error: double
child 7, minimum_signed_fan_volume_m3: double
child 8, joule_relative_error: double
child 9, force_relative_error: double
child 10, circuit_residual_V: double
child 11, T_min_K: double
child 12, T_max_K: double
child 13, U_max_m_s: double
child 14, estimated_Mach_max: double
child 15, absolute_pressure_min_Pa: double
child 16, absolute_pressure_max_Pa: double
child 17, nonlinear_coupling_passed: bool
child 18, temperature_change_ratio: double
child 19, heat_change_relative: double
child 20, force_change_relative: double
last_step: int64
start_time_s: int64
paraview_collection: string
scope: string
local_error_ratios_passed: bool
all_accepted_segments_audited: bool
accepted_native_steps: int64
to
{'passed': Value('bool'), 'end_time_s': Value('float64'), 'accepted_native_steps': Value('int64'), 'all_accepted_segments_audited': Value('bool'), 'local_error_ratios_passed': Value('bool'), 'scope': Value('string')}
because column names don't match
Traceback: Traceback (most recent call last):
File "/src/services/worker/src/worker/utils.py", line 147, in get_rows_or_raise
return get_rows(
dataset=dataset,
...<4 lines>...
column_names=column_names,
)
File "/src/libs/libcommon/src/libcommon/utils.py", line 272, in decorator
return func(*args, **kwargs)
File "/src/services/worker/src/worker/utils.py", line 127, in get_rows
rows_plus_one = list(itertools.islice(safe_iter(ds, dataset=dataset), rows_max_number + 1))
File "/src/services/worker/src/worker/utils.py", line 483, in safe_iter
yield from ds.decode(False) if ds.features else ds
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2951, in __iter__
for key, example in ex_iterable:
^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2461, in __iter__
for key, pa_table in self._iter_arrow():
~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 2486, in _iter_arrow
for key, pa_table in self.ex_iterable._iter_arrow():
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 547, in _iter_arrow
for key, pa_table in iterator:
^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/iterable_dataset.py", line 430, in _iter_arrow
for key, pa_table in self.generate_tables_fn(**gen_kwags):
~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 343, in _generate_tables
self._cast_table(pa_table, json_field_paths=json_field_paths),
~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/json/json.py", line 132, in _cast_table
pa_table = table_cast(pa_table, self.info.features.arrow_schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2378, in table_cast
return cast_table_to_schema(table, schema)
File "/usr/local/lib/python3.14/site-packages/datasets/table.py", line 2306, in cast_table_to_schema
raise CastError(
...<3 lines>...
)
datasets.table.CastError: Couldn't cast
passed: bool
field_consistency_passed: bool
acceptance_errors: list<item: null>
child 0, item: null
flow_model: string
end_time_s: double
transient_steps: int64
native_fluid_cells: int64
moving_mesh: bool
snapshots: list<item: struct<step: int64, time_s: double, mass_half_kg: double, mass_relative_error: double, EO (... 489 chars omitted)
child 0, item: struct<step: int64, time_s: double, mass_half_kg: double, mass_relative_error: double, EOS_relative_ (... 477 chars omitted)
child 0, step: int64
child 1, time_s: double
child 2, mass_half_kg: double
child 3, mass_relative_error: double
child 4, EOS_relative_error: double
child 5, mesh_error_m: double
child 6, native_volume_relative_error: double
child 7, minimum_signed_fan_volume_m3: double
child 8, joule_relative_error: double
child 9, force_relative_error: double
child 10, circuit_residual_V: double
child 11, T_min_K: double
child 12, T_max_K: double
child 13, U_max_m_s: double
child 14, estimated_Mach_max: double
child 15, absolute_pressure_min_Pa: double
child 16, absolute_pressure_max_Pa: double
child 17, nonlinear_coupling_passed: bool
child 18, temperature_change_ratio: double
child 19, heat_change_relative: double
child 20, force_change_relative: double
last_step: int64
start_time_s: int64
paraview_collection: string
scope: string
local_error_ratios_passed: bool
all_accepted_segments_audited: bool
accepted_native_steps: int64
to
{'passed': Value('bool'), 'end_time_s': Value('float64'), 'accepted_native_steps': Value('int64'), 'all_accepted_segments_audited': Value('bool'), 'local_error_ratios_passed': Value('bool'), 'scope': Value('string')}
because column names don't matchNeed help to make the dataset viewer work? Make sure to review how to configure the dataset viewer, and open a discussion for direct support.
SuperArc simulation packages
Latest Docker and Colab package — 2026-10-15
- Download the code_saturne source/launcher ZIP.
- Download the prebuilt Docker image.
- Download the updated Colab notebook, then open Colab → File → Upload notebook.
- Setup and run guide · Parameter guide · Colab/Drive guide.
This version uses code_saturne 9.2.0 and custom in-process electromagnetics/circuit, with configurable MPI/SMT, EM threads, timestep, output and audited restart/Drive backups. Docker and Colab share the checked runtime. The default target is 10 ms; a completed 10 ms discharge is not validated. Short native accuracy/restart/runtime tests passed. The previous trajectory hit a material guard near 16.1 µs; long-time accuracy and automatic remeshing remain unresolved. Full saved-image loading, hosted Colab/Drive and 22/44-rank scaling have explicit validation gaps in the guide. Earlier packages and evidence remain below unchanged.
code_saturne example with COMSOL-inspired configuration (2026-10-14): Download the ZIP (47,412,838 bytes), read setup and run instructions, or browse the solver profile and measured results. Includes the updated native Linux/WSL source kit, required EM backend, geometry/material inputs, test evidence, and seven accepted ParaView frames ending at 15 ns. Requires building code_saturne 9.2.0; no Docker image is included. The adaptive startup test passed its finer-reference criteria. Variable-order BDF2, Newton/PARDISO flow blocks and automatic remeshing remain differences from COMSOL; a fixed 350 microsecond startup step still fails. The full 10 ms discharge and a runtime speedup remain unvalidated. Earlier packages are preserved.
OpenFOAM with internal electromagnetics local package (2026-10-14): Download the offline ZIP or read the local instructions and verification report. This separate experimental case is configured for 10 ms and includes editable CPU workers, adaptive timesteps, moving-contact remeshing, restart and ParaView output. The finite-volume fluid solve remains serial. The bounded tests do not establish full 10 ms or mesh convergence, or agreement with COMSOL. Earlier packages remain available.
775 us remesh repair (2026-10-13): The reported three-face interpolation-weight failure was reproduced exactly. An additional bounded fallback widens the contact refinement transition from 1 mm to 3 mm, passing all original strict checks with 153,524 fluid cells (about 4% more). Instructions, small Colab installer, update ZIP, and validation are available. The Colab ZIP now includes this repair. Static meshes at 775/800/825/1000 us and a short coupled remap/restart passed. The actual user 775 us flow fields, all future positions, mesh convergence, and a full 10 ms run remain unverified. The mesh uses fixed refinement boxes; this repair does not add arc-tracking adaptation.
Optional electrical Elmer MPI update (2026-10-12): Download the small update or use the updated Colab package/notebook below. Real MPI/MUMPS electrical solving passed field/conservation checks and a short coupled restart. It was slower on the tested mesh (median 0.685 s serial versus 1.535 s with four MPI processes), so serial electrical remains the default. Magnetic MPI failed its field comparison, including sensitivity to changing the direct solver with one process, and is excluded from the coupled runner. See ELMER_PARALLEL.md and validation. No 22-core speedup or complete 10 ms/COMSOL agreement is claimed. The existing enthalpy and mesh-recovery fixes remain included.
Mesh-quality recovery update (2026-10-12): A small update ZIP adds a bounded repair for fresh-remesh quality failures. Existing local packages need no Docker rebuild. See REMESH_FIX.md for installation and automatic selection of the last validated restart. The Colab ZIP below now includes this update. Its fallback uses surface/volume optimization and a finer splitter-region mesh; the tested cell count increases from about 65,000 to 136,000, so the earlier runtime estimates do not describe this finer profile. Static checks passed at sampled positions through 2 ms and a short coupled remap/restart passed; the full 10 ms event remains unvalidated. The exact newly reported local failure still requires its checkMesh log for confirmation.
New: 22-core Google Colab package (2026-10-12)
- Download the Colab notebook. Open https://colab.research.google.com/ → File → Upload notebook, then run its cells.
- Download the complete updated ZIP. The notebook can download this automatically.
- Colab instructions · Validation details · ZIP SHA256
Defaults: 22 OpenFOAM MPI ranks, 22 magnetic BLAS threads, one current-solver thread. Includes the enthalpy correction, Docker-free runtime, optional scaling benchmark, checksummed restart backups to a mounted Drive, and ParaView preview. The initial accepted state remains 25 us. A shortened notebook test, archive restore/continuation, and a 22-rank coupled correctness test passed. Actual hosted Colab authorization and 22-core performance remain to be checked there.
Four-core timings extrapolate to approximately 5–9 days for 10 ms, assuming the short-interval rate persists. This is not an upper bound or a measured full-run duration. Neither the full 10 ms event nor linear 22-core speedup is established. The older archives below are preserved.
2026-10-12 update: A small enthalpy correction fixes the reproduced Newton-iteration failure. Install it after extracting the original ZIP; see ENTHALPY_FIX.md. Native regression checks and four-process coupled tests through 26.1 microseconds, including another remesh, passed. The full 10 ms run remains unvalidated. The original ZIP below is preserved unchanged.
Download the complete ZIP (1,622,031,461 bytes).
This dataset repository hosts the portable simulation package, including its compiled Docker runtime, sources, native restart, computed ParaView results, and PDF/LaTeX guides.
Original archive, before the update: the validated result ends at 25 microseconds. The following interval failed with Plasma enthalpy inversion failed. The 10 ms simulation has not completed. Read KNOWN_ISSUE.md.
Extract the whole ZIP and follow LOCAL_RUN_README.md. Docker with Linux containers, Python 3.9+, at least four CPU threads, and approximately 25 GB of free disk are required. The runtime is Linux amd64.
From the extracted SuperArc-local directory, verify the saved state with:
python3 run_local.py check --render
This check does not advance the simulation. Without the update, local continuation reproduces the preserved numerical failure. Apply the update before resuming.
Archive SHA-256: 4d4eab0722fd23bc56d70f32a8e987510bf75893ca89a37bcfae389854bcd488.
All 1,331 archive entries were checked during packaging. The original planar case guides are included; they do not describe a completed moving-contact simulation. The cloud run is stopped. These exploratory results do not establish equivalence to the full COMSOL switching event.
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