I am currently looking for #PhD and #post-doc candidates to work with me in #Augusta (GA, USA) on formal methods for #concurrent #reversible programs. More info at https://github.com/CinRC/.github/blob/main/website/phd_ad.md #Academia #job

Everyone who works on #concurrent programming or #distributed #consensus should have to coordinate getting both my kids into the same battle on the same server at the same time in whatever the hell #Roblox game they’re playing right now. They’re literally in the same room, a few feet apart, with a reliable communications medium (English) and they’re livelocked.

Today on #gopheradvent22 we continue with part 2 of Tom Payne‘s article two-part series. So, check out „Optimizing #concurrent Go part 2: #multicore #performance“: https://gopheradvent.com/calendar/2022/optimizing-concurrent-go-a-two-part-story-part-2/?mtm_campaign=GopherAdvent22&mtm_source=mastodon #golang

Today’s #gopheradvent22 article is by Tom Payne & shows how something can go from interview question idea to article series.
Check out „ Optimizing #concurrent #Go part 1: single core #performance“: https://gopheradvent.com/calendar/2022/optimizing-concurrent-go-a-two-part-story-part-1/?mtm_campaign=GopherAdvent22&mtm_source=mastodon

Haxmap is a fast and memory efficient golang concurrent hashmap.

https://github.com/alphadose/haxmap

#go #libraries #hashmap #concurrent #HaxMap

Multiuser DOS – a real-time multi-user multi-tasking operating system for https://archiveos.org/multiuser-dos/ #dos #concurrent

Hello Mastodon, or is it Tootland? I'm so confused...I will just blunder on, confused as usual!

I'm Heidi Stenner, a #hazards geologist and Project Manager with #GeoHazards International (#GHI) a non-profit focused on working with lower-resourced global communities who are at high risk of natural hazards and climate change impacts.

I have been an #earthquake #geologist and #paleoseismologist with USGS. Migrated into #scicomm #disasterprep. I'm most interested in #EQ #landslide #volcano #compound #concurrent #cascading #disasters and how to #mitigate #adapt #plan to reduce their impacts.

#introduction #SickOfHashtags #EasternWashingtonState

Working on 'et' (my escape-time #fractal program) this morning.

I added #supersampling presets from 1x1 through 8x8, selectable by keypress. It already did supersampling but you had to enter 3 numbers in a modal dialog.

The calculations of the array used for progressive image rendering were annoyingly slow, so I'm now caching them on disk using the xdg-basedir and vector-mmap packages (et is written in #Haskell). I also need the directory and filepath packages for this part.

The arrays get quite big, almost 700MB total for all supersampling sizes with a base resolution of 1024x576 pixels (it takes up 6 bytes per pixel). Changing the base resolution size means recalculating and storing another set of arrays. Cache will bloat!

So I'm thinking there might be a better procedural way to do what the arrays do, which is #Adam7 style interlacing (coarse pixels getting gradually finer in a multipass rendering) with the pixels in each pass ordered so that the center gets rendered first and it spreads out towards the edges.

So in short I need a cheap function from (ImageWidth, ImageHeight, PixelIndex) to (PixelX, PixelY, PixelWidth, PixelHeight), because using anything other than #atomics to increment PixelIndex is much too slow in #concurrent #multicore Haskell.

"Contrairement au goto banni de Python, ensure_future() est là, et va rester. Donc n’importe quel connard peut dans un code ailleurs vous niquer profond, et en tâche de fond."

J'ai ri. Excellent article, ceci dit.

http://sametmax.com/go-to-in-asyncio-considered-harmful/

#python #concurrent #asyncio

Plasmalang looks pretty dope.
Slideshow: http://paul.bone.id.au/pub/pbone-2017-plasma.pdf
Homepage: http://plasmalang.org/
#programming #declarative #concurrent #typed #dope