ThreadPool
swift-corelibs-libdispatch
ThreadPool | swift-corelibs-libdispatch | |
---|---|---|
8 | 3 | |
7,476 | 2,425 | |
- | 0.7% | |
0.0 | 6.5 | |
about 2 months ago | 6 days ago | |
C++ | C | |
zlib License | Apache License 2.0 |
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ThreadPool
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Is Parallel Programming Hard, and, If So, What Can You Do About It? v2023.06.11a
And in C++ can also use this dead-simple header file for a nice high-level, modern threadpool using function objects (lambdas) for very easy parallelization of arbitrary tasks: https://github.com/progschj/ThreadPool
- I created a ThreadPool class a while back, and I think it might have a very rare race condition that I can't reliable replicate in my application. Does anything look messed up?
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Hilll climbing Algorithm
Depending on how sophisticated you are with C++ you might want to try to impress him by using multithreading. I like this simple library. It's only like a 100 lines of code in a single header, and it is very simple to use.
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bad interpreter: Permission denied in GOOGLE COLAB
#!/usr/bin/env bash if [ ! -d kenlm ]; then git clone https://github.com/kpu/kenlm.git echo -e "\n" fi if [ ! -d openfst-1.6.3 ]; then echo "Download and extract openfst ..." wget http://www.openfst.org/twiki/pub/FST/FstDownload/openfst-1.6.3.tar.gz tar -xzvf openfst-1.6.3.tar.gz echo -e "\n" fi if [ ! -d ThreadPool ]; then git clone https://github.com/progschj/ThreadPool.git echo -e "\n" fi echo "Install decoders ..." python setup.py install --num_processes 4
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CPU raytracer multithreading
For point 2, just use this if you're lazy: https://github.com/progschj/ThreadPool
- How many threads at once?
swift-corelibs-libdispatch
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Is Parallel Programming Hard, and, If So, What Can You Do About It? v2023.06.11a
GCD/libdispatch is a fantastic approach to concurrency and you can build and install support for non-Apple operating systems:
https://github.com/apple/swift-corelibs-libdispatch
Here’s a simple echo server:
https://github.com/williamcotton/c_playground/blob/master/sr...
Here’s a simple multithreaded database pool:
https://github.com/williamcotton/express-c/blob/master/src/d...
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Cross-platform I/O built on io_uring and kqueue (in TigerBeetle)
One of the reasons is that libdispatch's I/O functions introduce extra dynamic allocations for internal queueing via `dispatch_async` ([0],[1],[2]) and from an API perspective of realloc-ing ([3]) an internally owned ([4]) buffer.
TigerBeetle, on the other hand, statically allocates all I/O buffers upfront ([5]), treats these buffers as intrusively-provided typed data ([6]) (no growing/owned buffers), and does internal queueing without synchronization or dynamic allocation ([7]).
[0]: https://github.com/apple/swift-corelibs-libdispatch/blob/469...
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What are the best books/courses for rigorous study of concurrency in iOS?
If you want iOS in particular, read the source of GCD itself.
What are some alternatives?
CTPL - Modern and efficient C++ Thread Pool Library
Hopac - http://hopac.github.io/Hopac/Hopac.html
c_playground - C Playground
kenlm - KenLM: Faster and Smaller Language Model Queries
tigerbeetle - The distributed financial transactions database designed for mission critical safety and performance.
express-c - Fast, unopinionated, minimalist web framework for C
ideas5 - Batch 5 of Ideas for Computing
ants - 🐜🐜🐜 ants is a high-performance and low-cost goroutine pool in Go./ ants 是一个高性能且低损耗的 goroutine 池。
CppCoreGuidelines - The C++ Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C++