Expose acceleration_trust_factor in Python bindings#214
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Plumbs the new ScsSettings.acceleration_trust_factor field through the Cython kwargs interface. Defaults to math.inf (no cap, matches current SCS master behavior); positive finite values activate the trust-region + adaptive-r mode from the underlying aa library. Bumps the scs_source submodule to pick up the C-side change. Validation rejects NaN and non-positive values. Adds coverage tests for the default, finite/inf sweep, and rejection cases.
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Pulls in the cvxgrp/scs PR #396 follow-up that re-allows +inf as the "disable" sentinel for eps_abs/eps_rel/eps_infeas and time_limit_secs. This restores the behavior that test_posinf_setting_accepted asserts and that the Python wrapper has always documented.
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Summary
Plumbs the new
acceleration_trust_factorsetting (added in cvxgrp/scs#396) through the scs Python kwargs interface.acceleration_trust_factorto the kwlist and argparse format inscs/scsobject.hscs_sourcesubmodule to the corresponding scs branchmath.inf= no cap, current HEAD behavior), a sweep of positive finite values, and rejection of bad inputsThe default is
math.infwhich preserves the current HEAD behavior bit-for-bit. Positive finite values turn on the trust-region + adaptive-r mode from the underlying aa library (PR #54 there), enabling parameter sweeps for further tuning.Test plan
python -m pytest test/test_scs_coverage.py— 286/286 passpython -m pytest test/test_scs_basic.py test/test_scs_object.py— 26/26 passDepends on cvxgrp/scs#396 being merged before this can land cleanly.