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Assorted Rants Tagged ‘Multithreading’, page 1:

CAS (Re)Actor for Non-Blocking Multithreaded Primitives

posted July 23, 2018 by "No Bugs" Hare

Quote:	in 2017, I started to feel that the Dark Ages of mutex-based thread sync were over
Another Quote:	Another issue which almost universally rears its ugly head when speaking about not-so-trivial uses of CAS is the so-called ABA problem.
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Parallel STL for Newbies: Reduce and Independent Modifications

posted April 26, 2018 by "No Bugs" Hare

Quote:	“with std::reduce() such code, while it compiles at least under MSVC, MAY occasionally provide wrong results”
Another Quote:	“if you happen to need something beyond that – take a deep breath and allocate at least several months to understand how does parallelism really work under the hood.”
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#ACCU2018. Day 2. Threads and Locks ARE a Dead End, Period!

posted April 12, 2018 by "No Bugs" Hare

As the Day 2 of ACCU2018 is over, here is my report about it. Kotlin ~= Java with a Better Syntax Keynote of Day 2 was about Kotlin (titled “Kotlin/Native – Embracing existing ecosystems”), delivered by Hadi Hariri. While the talk as such was pretty good, I wasn’t convinced that Kotlin is worth the trouble. My takeouts from […]

#ACCU2018 Day 1. From Gender Equality to (kinda-)Quantum Computing, with Threads and C++ copy/move in between

posted April 12, 2018 by "No Bugs" Hare

As #ACCU2018 is underway, and as I am here, it would be strange if I wouldn’t use the opportunity to tell about what I like (and don’t like ;-)) here. Diversity in Tech – What Can We Do? Gen Ashley was opening the conference with a keynote speech on “Diversity & Inclusivity in Tech”. Main point: […]

Parallel Coding: From 90x Performance Loss To 2x Improvement

posted April 4, 2018 by "No Bugs" Hare

Quote:	“as long as serial code provides good-enough response times from end-user perspective – DON’T PARALLELIZE”
Another Quote:	“out of all the premature optimizations, premature parallelization is the most premature one”
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Using Parallel <algorithm> Without a Clue: 90x Performance Loss Instead of 8x Gain

posted March 27, 2018 by "No Bugs" Hare

Abstract:	“I made an experiment which demonstrates Big Fat Dangers(tm) of implying that parallelization can be made as simple as just adding a policy parameter to your std:: call.”
Quote:	“it is still necessary to understand what we’re doing”
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#CPPCON2017. Day 4. Async Rulezzz!

posted September 30, 2017 by "No Bugs" Hare

During the Day 4 of CPPCON, I had to prepare to my own talk tomorrow; still – I was able to attend all the talks I was interested in. But before I can start – let’s discuss a thing which I just understood during CPPCON17; it is related to… Big Fallacies of Parallel Programming for […]