PRIMA is a package for solving general nonlinear optimization problems without using derivatives. It provides the reference implementation for Powell's derivative-free optimization methods, i.e., COBYLA, UOBYQA, NEWUOA, BOBYQA, and LINCOA. PRIMA means Reference Implementation for Powell's methods with Modernization and Amelioration, P for Powell.
active 2024-10-12 → 2026-08-07 (UTC)
Activity over time
Daily event counts in the loaded window
Line chart, 665 days from 2024-10-12 to 2026-08-07. Pushes: 408 total, peak 16 in a day. Pull requests: 66 total, peak 5 in a day. Issues: 6 total, peak 2 in a day. Comments: 62 total, peak 4 in a day. Stars: 36 total, peak 4 in a day.
- Pushes
- Pull requests
- Issues
- Comments
- Stars
Stars, PRs, issues and forks are under-captured in the later part of this window. GH Archive progressively stopped capturing non-push events during 2026 — −95% or worse by the end of the window. Every series here except Pushes fades for that reason, so a decline above reflects the archive, not this repository. Pushes stay reliable throughout, so read them, and the contributor counts derived from them, as the real signal. Data health has the measurements.
Top contributors
Pushes, PRs, issues, reviews and comments — stars and forks excluded, so this is contribution rather than popularity
| Contributor | Contributions | Pushes | PRs | Comments |
|---|---|---|---|---|
| zaikunzhang | 416 | 397 | 8 | 6 |
| dependabot[bot] | 45 | 1 | 42 | 2 |
| github-actions[bot] | 36 | 0 | 0 | 36 |
| nbelakovski | 19 | 0 | 11 | 7 |
| OptHuang | 4 | 0 | 0 | 3 |
| Copilot | 3 | 0 | 3 | 0 |
| github-advanced-security[bot] | 2 | 0 | 0 | 0 |
| deleveld | 1 | 0 | 0 | 1 |
| asenzz | 1 | 0 | 0 | 1 |
| lucascolley | 1 | 0 | 0 | 1 |
Recent activity
Latest issues, pull requests and releases
- Issue#296zaikunzhang2026-05-10 06:31With MinGW, if we set verbose to true in test_matlab_windows.yml, MATLAB will crash with the message "ERROR: MATLAB error Exit Status: 0xc0000409"
- Issue#295zaikunzhang2026-05-10 06:30Warnings are emitted during mexification
- Pull request#294dependabot[bot]2026-05-10 03:10
- Pull request#293dependabot[bot]2026-05-01 07:51
- Issue comment#289github-actions[bot]2026-04-10 07:12Bump matlab-actions/run-command from 3.0.0 to 3.0.1
- Pull request#282dependabot[bot]2026-03-27 07:04
- Pull request#282dependabot[bot]2026-03-27 07:04
- Pull request#282dependabot[bot]2026-03-27 07:04
- Pull request#282dependabot[bot]2026-03-27 07:04
- Issue comment#280github-actions[bot]2026-03-06 07:06Bump pypa/cibuildwheel from 3.3.1 to 3.4.0
- Pull request#278nbelakovski2026-02-27 10:41
- Pull request#279dependabot[bot]2026-02-27 07:05
- Pull request#279dependabot[bot]2026-02-27 07:05
- Pull request#277nbelakovski2026-02-26 18:44
- Issue#274zaikunzhang2026-02-20 22:00`test_pyptima` sometimes fails on `windows-lates`
- Pull request#272Copilot2026-02-15 14:23
- Pull request#272Copilot2026-02-15 14:23
- Pull request#271Copilot2026-02-15 12:06
- Issue comment#266lucascolley2026-02-03 19:19add `meson.build` to define `pyprima` sources for downstream vendoring
- Pull request#265dependabot[bot]2026-01-30 07:06
- Pull request#265dependabot[bot]2026-01-30 07:06
- Pull request#265dependabot[bot]2026-01-30 07:06
- Pull request#265dependabot[bot]2026-01-30 07:06
- Pull request#263dependabot[bot]2026-01-30 07:04
- Issue#250nbelakovski2026-01-08 03:31Include code to eliminate fixed bounds in python bindings
Totals cover only the window loaded into ClickHouse and count events, not GitHub's lifetime totals — 36 stars here means stars gained during the window, not the repo's star count.