All Questions
Tagged with performance multithreading
176 questions
16
votes
1
answer
2k
views
CUDA Mandelbrot Kernel
I'm looking for feedback and suggestions on improving the performance and quality of my CUDA kernel for rendering the Mandelbrot set. I've implemented a "ping-pong" style coloring and ...
- 407
7
votes
1
answer
707
views
Shortest unrestricted path to touch every square in an n by n grid
The goal is to brute force the length of the shortest unrestricted path that touches any part of each square within an n by n square grid.
Unrestricted path meaning any continuous curve between two ...
- 71
3
votes
1
answer
83
views
Multi-Page Web Scraping Code Using Selenium with Multithreading
I have written a web scraping script using Selenium to crawl blog content from multiple URLs. The script processes URLs in batches of 1000 and uses multithreading with the ThreadPoolExecutor to ...
- 31
3
votes
2
answers
97
views
Optimize a C++ Multithreaded Program for Processing Large POSTFIX .tar Files
The program processes files within a large POSTFIX .tar archive using a multithreaded approach, where a worker pool processes files in parallel. It maps the .tar file into memory, distributes the file ...
- 131
2
votes
2
answers
129
views
A thread-safe performant Money Transfer API in Java
This is a popular interview question. It is meant to be done within 30 minutes. The task is to implement a thread-safe performant Bank Account API that allows to transfer, deposit, withdraw and check ...
- 343
3
votes
1
answer
100
views
Multithread execution times are slow on Ubuntu and fast on Windows
I'm working on a project accelerating the execution of a Genetic Algorithm both on multiple cores and on a GPU. The algorithm is specifically suited for the solution of the Traveling Salesman Problem ...
7
votes
1
answer
292
views
Multithreading message queue system
For an application I'm developing, I need an system which allows a thread to submit messages to another thread. For this purpose I designed a message queue system with the following features.
Any ...
- 195
2
votes
2
answers
230
views
Circular Queue Producer Consumer with Mutex and Condition Variable vs. Sempahore
How can I optimize the performance of the code below? Destruction of the condition variable at the end of main blocks, not sure why this behavior is occurring. Is it possible to remove some of the ...
- 177
3
votes
1
answer
123
views
Multi producer/consumer lock-free queue
I would be grateful if you could review my code for a multi producer/consumer lock-free queue in C++.
I am mainly after performance improvements, but all input is welcome.
...
- 33
5
votes
3
answers
2k
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An exercise in Data Oriented Design & Multi Threading in C++
Been working in games development professionally now for about ~5 years, but have only been doing OOP & haven't worked with multi threading before as I'm mostly a gameplay programmer, I've also ...
1
vote
2
answers
157
views
Web scraping spider
I'm currently working on my first web scraping project and I need to scrape a lot of websites. With my current code it takes more than a day but for my project I need to scan the same websites every 5 ...
- 27
1
vote
1
answer
388
views
Multithreaded O_DIRECT file read-and-process program
Here is my code. It reads a file and returns the sum of all the bytes in the file:
...
- 113
1
vote
0
answers
80
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A parallel MSD radix sort in Java for integer keys
I have this repository: https://github.com/coderodde/ParallelRadixSort.java/tree/main
It contains a parallel MSD radix sort presented below:
...
- 30.2k
4
votes
2
answers
2k
views
Multi-threading Class in C++
I wrote a C++ class which can take a vector of functions and their respective arguments and execute them in parallel and return a vector of results from its respective functions.
...
- 543
4
votes
1
answer
629
views
Multithreading a shortest path algorithm
I would like to modify my shortest path finding code to use multithreading and improve its performance. The algorithm must be able to work with negative weights, and as a result, we cannot use ...
- 263