prima
fml9000
prima | fml9000 | |
---|---|---|
13 | 4 | |
275 | 8 | |
4.0% | - | |
9.9 | 2.9 | |
6 days ago | 9 months ago | |
Fortran | Rust | |
BSD 3-clause "New" or "Revised" License | MIT License |
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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
fml9000
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What are you rewriting in rust?
this has not gotten very far off the ground but making a foobar2000-like music player using gtk4-rs https://github.com/cmdcolin/fml9000
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How do you listen to your music?
I am trying to make my own gui music player https://github.com/cmdcolin/fml9000/. I've used cmus (command line) and it didn't click. also used quod libet and foobar under wine. foobar is the best but i want to get a bit custom. I mostly listen to stuff on youtube so I want my gui music player to support connecting to youtube and maybe bandcamp (I have many bandcamp purchases also, so being able to access those without bulk download is ideal to me even though I've used bandcamp-collection-downloader, it just takes up space on my laptop)
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Looking for a partner to code with
i'm attempting to make a music player with rust and gtk (both new things to me) at https://github.com/cmdcolin/fml9000
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Do you think is it worth to learn gtk4 to use it with rust?
my gtk4-rs app that i'm writing is pretty spaghetti-codey but feel like it could be cleaned up over time. relm4 is interesting and may help code organization, but i went with raw gtk4-rs to start with to avoid trying to learn too many things at once. my nooby code just for ref https://github.com/cmdcolin/fml9000
What are some alternatives?
solid-docs - Cumulative documentation for SolidJS and related packages.
signrs
stdlib - Fortran Standard Library
tensorken - A fun, hackable, GPU-accelerated, neural network library in Rust, written by an idiot
pybobyqa - Python-based Derivative-Free Optimization with Bound Constraints
Hearth - Hearth is an Ultra-fast LavaLink alternative written in Rust
Optimization-Codes-by-ChatGPT - numerical optimization subroutines in Fortran generated by ChatGPT-4
rattler - Rust crates to work with the Conda ecosystem.
inox2d - Native Rust reimplementation of Inochi2D
web - Source for my personal website, here be dragons.
OfficerBreaker - OOXML password remover
music-for-programming - Stream musicforprogramming.net directly into your terminal