prima
freebsd-src
prima | freebsd-src | |
---|---|---|
13 | 133 | |
275 | 7,490 | |
4.0% | 0.9% | |
9.9 | 10.0 | |
6 days ago | 5 days ago | |
Fortran | C | |
BSD 3-clause "New" or "Revised" License | GNU General Public License v3.0 or later |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
prima
-
Prima has got a Python interface
The developer of PRIMA here.
If you use method "cobyla" from scipy.optimize.minimize, then PRIMA already performs far better (in terms of the number of function evaluations). See the comparison at https://github.com/libprima/prima#improvements .
The bugs are indeed only a secondary reason: they can only be triggered under special situations. They may not affect your usage at all (when it does affect you, the consequence is catastrophophic).
-
Nagfor supports half-precision floating-point numbers
1. nagfor Release 7.1(Hanzomon) Build 7149 released on March 5, 2024, fixed all the bugs spotted, but introduced an ICE when compiling PRIMA ( http://www.libprima.net ). The ICE has nothing to do with half-precision real, because it occurs when PRIMA is configured to use single or double precision. It can be reproduced by
```
git clone https://github.com/libprima/prima.git && cd prima && git checkout ec42cb0 && cd fortran/examples/lincoa && make ntest
```
2. nagfor 7.2 released on 6 March, 2024 included neither the ICE nor the fixes for the bugs.
- PRIMA: Solving general nonlinear optimization problems without derivatives
-
What are you rewriting in rust?
My goal is to rewrite this library for derivative-free optimization: https://github.com/libprima/prima
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SciPy: Interested in adopting PRIMA, but little appetite for more Fortran code
A native port is indeed planned. However, since we are talking about a project of about 10K lines of code, such a port will not be delivered very soon.
In fact, native implementations of PRIMA in Python, MATLAB, C++, Julia, and R will all be done in the future. See https://github.com/libprima/prima#other-languages . But it takes time. PRIMA has been a one-man project since it started three yearss ago. Community help is greatly needed.
Thanks.
-
Optimization Without Using Derivatives: the PRIMA Package, its Fortran Implementation, and Its Inclusion in SciPy - Announcements
GitHub repo of the project: https://github.com/libprima/prima
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Optimization Without Derivatives: Prima Fortran Version and Inclusion in SciPy
It sounds like this was a difficult task. The motivation to fulfill Prof. Powell's request and help the community of derivative-free optimization users must have been strong. Congratulations on your achievement!
From the GitHub README:
> In the past years, while working on PRIMA, I have spotted a dozen of bugs in reputable Fortran compilers and two bugs in MATLAB. Each of them represents days of bitter debugging, which finally led to the conclusion that it was not a problem in my code but a flaw in the Fortran compilers or in MATLAB. From a very unusual angle, this reflects how intensive the coding has been.
> The bitterness behind this "fun" fact is exactly why I work on PRIMA: I hope that all the frustrations that I have experienced will not happen to any user of Powell's methods anymore. I hope I am the last one in the world to decode a maze of 244 GOTOs in 7939 lines of Fortran 77 code — I have been doing this for three years and I do not want anyone else to do it again.
https://github.com/libprima/prima#a-fun-fact
- Optimization Without Using Derivatives
freebsd-src
- You shouldn't run a BSD on a PC
- Linux Crisis Tools
- What about the vfs.zfs.bclone_enabled sysctl now?
-
Personal FreeBSD PKGBASE Update Server
2023-06-26: https://github.com/freebsd/freebsd-src/commit/ee0aa1ce12b3caea34477a31e9d2111a329e33b9 to main (tagged release/14.0.0).
- What version of ZFS at FreeBSD solves the block cloning issue?
-
Installing FreeBSD 14 Stable on an T480 Laptop w/ an Encrypted Home Directory
It's not yet in FreeBSD base so if you want to test it you'll have to use the patch from the PR: https://github.com/freebsd/freebsd-src/pull/881
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FreeBSD 14.0 Delivering Great Performance Uplift
Lots of great work by many people. But I bet this guy and his optimizations to the vfs and locking has made a significant impact.
https://github.com/freebsd/freebsd-src/commits?author=mjguzi...
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ZFS 2.2.1: Block Cloning disabled due to data corruption
and then there were deep concerns about the stability of same, so vfs.zfs.bclone_enabled = 0 was left in-place
https://github.com/freebsd/freebsd-src/commit/068913e4ba3dd9...
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FreeBSD 14.0-Release Announcement
Well there are some examples:
https://github.com/freebsd/freebsd-src/tree/main/share/examp...
But yeah that pf.conf could be expanded allot, but there are many source to cobble a conf together. My conf is massive but 99.9% commented out so i have my "template" for nearly everything, from mail to web to blacklistd etc.
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Git cherry-pick and revert use 3-way merge
The BSD version is sort of very recent, for what it's worth -- FreeBSD imported a not fully functional version in 2017 and has seen more work on it in 2022: https://github.com/freebsd/freebsd-src/commits/main/usr.bin/... , but the default version shipped is still GNU diff3: https://man.freebsd.org/cgi/man.cgi?query=diff3&apropos=0&se... .
What are some alternatives?
solid-docs - Cumulative documentation for SolidJS and related packages.
podman - Podman: A tool for managing OCI containers and pods.
stdlib - Fortran Standard Library
musl - unofficial musl mirror git://git.musl-libc.org/musl
pybobyqa - Python-based Derivative-Free Optimization with Bound Constraints
darwin-xnu - Legacy mirror of Darwin Kernel. Replaced by https://github.com/apple-oss-distributions/xnu
Optimization-Codes-by-ChatGPT - numerical optimization subroutines in Fortran generated by ChatGPT-4
src - Read-only git conversion of OpenBSD's official CVS src repository. Pull requests not accepted - send diffs to the tech@ mailing list.
inox2d - Native Rust reimplementation of Inochi2D
ravynos - A BSD-based OS project that aims to provide source and binary compatibility with macOS® and a similar user experience.
OfficerBreaker - OOXML password remover
coreutils - upstream mirror