xioxox

23 ms·

211.
by xioxox 6y ago
I guess that's a no then. Well, I better give up on Fortran if I need to load configuration files, sort data, expand an array, take command line parameters, associate some text with the data, or use a hash table, if those aren't r
212.
by xioxox 6y ago
Do they have libraries for JSON, network functions, strings, data types (e.g. dict/map, resizeable vector, sorting, linked list, kd-tree...), databases, and all the things that make a programming language useful? Please point me to the
213.
by xioxox 6y ago
That might fix the compiler quality and vectorization, but it doesn't fix the lack of library and terrible string support. Edit: plus to ship our code to others requires a free good quality compiler. In the C/C++ world, that is st
214.
by xioxox 6y ago
We're writing it for the ground processing for data from a new space telescope. Personally, I wish I was writing C++ or Python, but it does allow scientists to start writing code much more easily than C/C++ does, though Python is
215.
by xioxox 6y ago
I understood that on Linux using a process was similar in speed to a thread, though they're much slower on Windows. Has that changed? For my python multi core code I like using fork with sending objects over a socket with pickle. It gi
216.
by xioxox 6y ago
Did I use the word "often" in my comment above? Anyway, as an astronomer, I've heard about lucky imaging quite a few times - it likely depends what other astronomers you are exposed to. Of course, it can currently only be use
217.
by xioxox 6y ago
As I mentioned above, there is a technique called lucky imaging, where you take lots of short exposures and only use the best ones. In astronomy, this can be used to reach the diffraction limit. You need a bright source, however, and it pro
218.
by xioxox 6y ago
In astronomy a technique called lucky imaging can be used to reduce the effects of the atmosphere. You use a high frame rate and throw away all the frames where the atmospheric quality is poor. This technique produces a narrow field of view
219.
by xioxox 6y ago
Have a look at the game Control. I think this is a game where I feel they've used the technology really well. Maybe the office building location is a good one for raytracing, as it's full of reflective surfaces, but the graphics f
220.
by xioxox 6y ago
I have an RTX 2060. I was very impressed by the game Control. It uses raytacing and has good frame rates. It's graphics are really nice. It certainly looks possible to get good results with current hardware, particularly now DLSS 2 is
221.
by xioxox 6y ago
x2go and xpra allow some lossy compression algorithms.
222.
by xioxox 6y ago
There's no supposedly for me using compression. I just checked - it consistently takes 3x longer to launch an xterm without compression than with compression (15 vs 45s!).
223.
by xioxox 6y ago
Everyone probably already knows this, but enabling compression (-C) makes running remote X programs more usable over slower connections.
224.
by xioxox 6y ago
In our (academic) meetings, people generally default to switching off their camera when there's more than a handful of participants. I find this much less stressful. I can also do some physical activity which helps concentration if I&#
225.
by xioxox 7y ago
It's certainly useful for quite a lot of mathematical science code. In my experience compilers are not very good at autovectorizing anything but the most simple loops and writing SIMD intrinsics is necessary to obtain the maximum outpu
226.
by xioxox 7y ago
Some previous discussion: https://news.ycombinator.com/item?id=20904549
227.
by xioxox 7y ago
Zoom on linux isn't too bad. Unlike other companies, they provide a linux client. It has all the essential features in it (I haven't spotted anything missing). In addition, it doesn't depend on some ancient java stack. Yes, y
228.
by xioxox 7y ago
If you like the idea of trying to identify a location from a photo, take a look at a competition that regularly tried to do this, View From My Window: http://dish.andrewsullivan.com/vfyw-contest/ . Some of it was truly
229.
by xioxox 7y ago
Right. AV software seems really poor quality. I recently updated my Windows app. VirusTotal showed 14 AV products detected my program as malware, when it clearly wasn't. I tried to report the false positives, but the vendors had terrib
230.
by xioxox 7y ago
And what about those hand dryers? Do they just blow droplets containing the virus around the place?
231.
by xioxox 7y ago
Germany has huge numbers of banks compared to other countries and so the system is inefficient. In addition the low interest rates mean banks find it hard to make money. My previously free German account now costs some money.
232.
by xioxox 7y ago
I get excellent 8-10 hr lifetime on a Lenovo X1 Carbon and a Dell Inspiron 7590 with Ubuntu.
233.
by xioxox 7y ago
Libreoffice Present is pretty buggy. For example, sometimes clicks don't do the right thing. Also, I've had slide elements become uneditable. These bugs are really noticeable when making presentations with complex slides. Libreoff
234.
by xioxox 7y ago
Doesn't seem so bad. It's probably double that number including other distributions. Desktop users are also diluted by all those mobile users.
235.
by xioxox 7y ago
A stone or insert in your shoe would probably work (albeit painfully). I don't think people would think you were actively dodging ML if you had a limp, unlike strange face painting or haircuts.
236.
by xioxox 7y ago
Using it on Android still, as it's the only browser I've found with good text reflow on zooming.
237.
by xioxox 7y ago
On linux, it can either get done using fstrim (often run periodically, e.g. via cron), which clears unused blocks, or can be done on file delete on supported file systems (e.g. mounting using the discard option). The periodic trim is suppos
238.
by xioxox 7y ago
Thanks! The motions detected are pretty subsonic, so probably aren't expected to affect the hydrostatic equilibrium assumption significantly. We're measuring bulk flows, however, and not the turbulent width. There are some other r
239.
by xioxox 7y ago
Good question. Clusters are special environments. Falling into a cluster means the cooler gas from a galaxy is stripped off relatively quickly, reducing star formation in most. You should get star formation in the central massive galaxy, ho
240.
by xioxox 7y ago
There's lots of good evidence for something like dark matter in clusters. The nicest one is the Bullet cluster (lots online about this), where we can see the hot gas and mass are offset. We can measure the shape of the dark matter in t

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