partial commutation and traces

https://web.archive.org/web/20170908153838/https://pdfs.semanticscholar.org/d67a/c4c1e5967f7e114f390245f28909f259c034.pdf

#cs #monoid #trace #parallelism

Episode 30 of @RuntimeArguments is live at RuntimeArguments.fm — "Available compute: way more than you need, right up until you need it." Wolf @YesJustWolf leads a deep dive into why almost every program you've ever written has wasted most of the hardware it runs on, while Jim @jammcq brings the infrastructure angle on what happens when one machine genuinely isn't enough. Concurrency and parallelism aren't the same answer — maybe they aren't even the same problem. This episode maps the whole stack from SIMD up through goroutines, async/await, and actor models, takes a hard look at GPU transfer costs (and why Apple Silicon sidesteps them for some kinds of problems), and lands on the one truth that unites everything: shared state is your enemy.

As always, we want to know what you think:

[email protected]

https://www.buzzsprout.com/2469780/19333401-30-available-compute-way-more-than-you-need-right-up-until-you-need-it

#Podcast #TechPodcast #Concurrency #Parallelism #Python #Go #Rust #AsyncAwait #GPU #AppleSilicon #PerformanceEngineering #SoftwareDevelopment

Ruby Ractor를 위한 공유 큐: ractor_queue 소개

Ruby의 표준 Queue는 Mutex 사용으로 인해 Ractor 간 공유가 불가능하지만, ractor_queue는 락-프리(lock-free) 원자적 연산을 통해 이 제약을 해결한다.

🔗 원문 보기

Folding in Parallel

https://okmij.org/ftp/Algorithms/map-monoid-reduce.html

#Programming #Algorithms #Parallelism

ACCU on Sea 2026 SESSION ANNOUNCEMENT: Serial C++ Can Be Parallel Too by Eran Gilad

https://accuonsea.uk/2026/sessions/serial-cpp-can-be-parallel-too

Register now at https://accuonsea.uk/tickets/

#simd #parallelism #cpp #coding

ACCU on Sea 2026 SESSION ANNOUNCEMENT: Serial C++ Can Be Parallel Too by Eran Gilad

https://accuonsea.uk/2026/sessions/serial-cpp-can-be-parallel-too

Register now at https://accuonsea.uk/tickets/

#simd #parallelism #cpp #coding

Ractor: GVL의 제약 없는 루비의 진정한 병렬성

Ractor는 객체 격리를 통해 GVL(Global VM Lock)의 제약 없이 멀티 코어에서 루비 코드를 병렬로 실행할 수 있는 실행 단위다.

🔗 원문 보기

Ruby Ractor를 이용한 병렬 암호 해독: Rubetta Stones 도전기

Ractor는 Ruby의 Actor 모델 구현체로, 객체 공유를 제한하고 메시지 기반 통신을 통해 스레드 안전성 걱정 없는 병렬 실행을 지원한다.

🔗 원문 보기

UpDown: Efficient Manycore based on Many Threading & Scalable Memory Parallelism

https://people.cs.uchicago.edu/~aachien/lssg/research/10x10/ics26-single-chip-updown.pdf

#HackerNews #Manycore #ManyThreading #ScalableMemory #Parallelism #Research #Paper #HardwareOptimization