release: 22.5.0 — configurable LightGBM n_jobs (lgbm_n_jobs) + code-scanning #214#381
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The lgbm forecaster factories (default_lgbm_forecaster_factory, quantile_lgbm_forecaster_factory) now read config.lgbm_n_jobs and forward it to LGBMRegressor(n_jobs=...). Default is 1: on heterogeneous-core CPUs (e.g. Apple Silicon's performance + efficiency cores) LightGBM's all-core OpenMP anti-scales (the fork-join barrier stalls on the slow E-cores). With n_jobs=1 the backtesting heuristic (select_n_jobs_backtesting) instead parallelises the CV folds across processes, which scales cleanly (~3x faster end-to-end tuning on an M4 Max). On many-core homogeneous machines (e.g. Linux Xeon) set lgbm_n_jobs=-1 to restore all-core in-model threading. New field on ConfigMulti (inherited by ConfigEntsoe) and the PipelineConfig protocol; factories read it via getattr(config, "lgbm_n_jobs", 1) so config-like objects predating the field keep working. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
…l-variable) _throttle_open_meteo rebinding the module-level _LAST_REQUEST_MONOTONIC through `global` tripped CodeQL's py/unused-global-variable (code-scanning alert #214). Hold the last-request monotonic time in a one-element list mutated in place under the lock instead: identical runtime behaviour, no global rebind. Updates the throttle-spacing test to the list form. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Sync docs/reference with the new ConfigMulti/ConfigEntsoe.lgbm_n_jobs field and the updated lgbm factory docstrings (API Reference In Sync gate). Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
…gbm-n-jobs feat(multitask): configurable LightGBM n_jobs (default 1) + clear code-scanning #214
## [22.5.0-rc.1](v22.4.1...v22.5.0-rc.1) (2026-06-13) ### Features * **multitask:** configurable LightGBM n_jobs via config.lgbm_n_jobs ([1163478](1163478)) ### Bug Fixes * **weather:** hold throttle timestamp in a container (py/unused-global-variable) ([7860fe2](7860fe2)), closes [#214](#214) ### Documentation * **reference:** regenerate quartodoc reference for lgbm_n_jobs ([a7aeee4](a7aeee4))
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develop→mainto release 22.5.0.Since 22.4.1:
config.lgbm_n_jobs(default1) — configurable LightGBM thread count for the forecaster factories. Default 1 lets the backtester parallelise CV folds across processes (cleanly scaling), avoiding LightGBM's all-core OpenMP anti-scaling on heterogeneous-core CPUs (Apple Silicon). Set-1on many-core homogeneous machines (Linux Xeon). (feat(multitask): configurable LightGBM n_jobs (default 1) + clear code-scanning #214 #380)py/unused-global-variable(alert docs: completed Examples: #214) in the Open-Meteo throttle. (feat(multitask): configurable LightGBM n_jobs (default 1) + clear code-scanning #214 #380)🤖 Generated with Claude Code