QDirStat
NASTRAN-95 | QDirStat | |
---|---|---|
8 | 29 | |
415 | 1,573 | |
3.1% | - | |
0.0 | 9.3 | |
over 7 years ago | 10 days ago | |
Fortran | C++ | |
- | GNU General Public License v3.0 only |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
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.
NASTRAN-95
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Which FEA software product does each major industry (automotive, aerospace, etc) use?
Well, NASTRAN was one of the first Solvers developed and available. You can download predecessor if current NASTRAN for free from github: https://github.com/nasa/NASTRAN-95
- What is some good resource to study FEA?
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What is the best opens-source finite element solver which I can use for learning and implementing new contact interaction algorithms?
I haven’t tried to use the public, open source version, but shouldn’t NASTRAN make this list?
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Revitalizing Castlequest, Part 4: Squarified Cushioned Treemaps
A larger legacy FORTRAN project is NASTRAN-95, a finite element structural analysis code (again from NASA) that consists of almost 2000 individual source files as well as substantial example case input and output files.
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Revitalizing Castlequest, Part 3: The Shape of Code
Finally, consider how long it took to answer these questions for each file. The Castlequest source code is distributed among 16 files; how long would it take to assess the whole codebase by viewing bitmaps versus skimming source files in an IDE or text editor? By comparison, the NASTRAN-95 project consists of almost 1900 separate source files distributed among 10 directories - would the graphical or the textual approach be more effective on a project of that size? Would either approach be effective at that scale?
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Toward Modern Fortran Tooling and a Thriving Developer Community
I think there's a common misconception that numerical codes should be accessible without documentation, and without a background in the subject.
Take NASTRAN-95 [1] or SPICE2 [2], for example. Both have good documentation in the form of manuals, books, and papers. If you have the mechanical or electrical background, you should be able to understand the docs explaining the implementation, and then you should be able to understand the code. It doesn't matter that there are no comments anywhere, or that GOTO is used. Aside from some cosmetic differences, it looks pretty much like what you'd write today with MATLAB or Python.
I picked these examples because they're publicly available, but I would guess that most Fortran still in use has no public visibility. In my experience with commercial numerical engineering software, Fortran lives on in under-the-hood components written by subject matter experts for performing specific tasks. It doesn't matter that programmers are unfamiliar with the language, because only subject matter experts are allowed to modify the code anyway.
To be clear, I'm not defending the many examples of unstructured, undocumented academic code that grows until it's essential to an organization despite being buggy and virtually unmaintainable. But those would have been terrible to read no matter which language was used.
I've never seen the language itself be a significant barrier to understanding in a business context. And it's not like we have a problem where there are all these active open-source projects that could be so much better if only they were written in a different language.
[1] https://github.com/nasa/NASTRAN-95
[2] https://ptolemy.berkeley.edu/projects/embedded/pubs/download...
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Hypothetical question: What schema would you use to store a high but finite number of document/record types?
Nastran bulk data: https://github.com/nasa/NASTRAN-95/blob/master/um/BULK.TXT Similar case, but modern nastran versions have somewhere in the 1000s (I think) card types.
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Website for generating and downloading sample FEM mesh files
NASTRAN-95/um at master · nasa/NASTRAN-95 (github.com)
QDirStat
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Is there a way to mount my entire Synology disk as a drive to my computer?
You can obviously do it separately on each share. You can use Storage Analyzer to get some of the functionality, but it's not quite as easy as WinDirStat or the like. If you've got some time and willingness to experiment, you can probably get qdirstat (https://github.com/shundhammer/qdirstat) to run in Docker, and mount the volume in a way to analyze it.
- ncdu / WinDirStat / QDirStat as online tool?
- Deleted files taking up space
- Does a treemap tool exist for analysing space usage?
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2 ext4.vhdx files
I'm a big fan of WinDirStat to help me figure out why I don't have any disk space left. It's shiny. And also free. (And then you can use QDirStat from inside your linux distros with basically no learning curve.)
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-🎄- 2022 Day 7 Solutions -🎄-
It's used by several disk usage utilities like https://github.com/shundhammer/qdirstat
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This week in KDE: Humongous UI improvements
https://github.com/shundhammer/qdirstat/issues/166 and
- Building apps with Visual studios.
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Is there an app like WinDirStat for Linux?
QDirStat is another alternative.
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/var/log/syslog grew to 200GB
This shows a screenshot from each and gives a quick performance comparrison.
What are some alternatives?
fpm - Fortran Package Manager (fpm)
k4dirstat - K4DirStat (KDE Directory Statistics) is a small utility program that sums up disk usage for directory trees, very much like the Unix 'du' command. It displays the disk space used up by a directory tree, both numerically and graphically (copied from the Debian package description).
squarify - Pure Python implementation of the squarify treemap layout algorithm
simple64-gui - mupen64plus GUI written in Qt6
duf - Disk Usage/Free Utility - a better 'df' alternative
disk-usage - Mirror of the disk-usage package from GNU ELPA, current as of 2024-05-05
Cyberpunk-Neon - Cyberpunk Neon Themes for KDE Plasma, GTK, Telegram, Tilix, Vim, Zim and more.
f2 - F2 is a cross-platform command-line tool for batch renaming files and directories quickly and safely. Written in Go!
fsearch - A fast file search utility for Unix-like systems based on GTK3
antimicrox - Graphical program used to map keyboard buttons and mouse controls to a gamepad. Useful for playing games with no gamepad support.
spacedrive - Spacedrive is an open source cross-platform file explorer, powered by a virtual distributed filesystem written in Rust.