All Questions
16
questions
3
votes
1
answer
275
views
Lock-free, thread-safe trie container
This is a Trie data structure for mapping strings to integers or pointers in O(n) time. Based on the idea that we never delete anything from the container, we can perform concurrent read/write ...
- 421
4
votes
1
answer
3k
views
A "zero copy" concurrent queue in C++ that supports exactly two threads; one for pushing and one for popping
One thread is limited to one action (i.e. there is a push-thread and a pop-thread and the push-thread can't pop and vice versa). By "zero copy" I mean no copying of data (mostly C++ structures) will ...
- 273
4
votes
1
answer
3k
views
Blocking queue implementation with std::unique_ptr
I implemented, somewhat closely based on this implementation, a blocking queue with emphasis on filling up first. So if one producer and one consumer thread are using the queue, the producing queue ...
- 43
9
votes
2
answers
1k
views
C++11 Blocking connection pool with auto release
Relatively new to C++. Please help me understand the potential issues with the following blocking object pool.
...
- 189
0
votes
1
answer
1k
views
Turn a non-blocking concurrent queue into a blocking concurrent queue
Microsoft Visual Studio offers a non-blocking concurrent queue class, concurrency::concurrent_queue, based on Intel's TBB. I am using this as a base for a blocking ...
- 303
2
votes
0
answers
567
views
RCU in C++11 using std::shared_ptr and a little more
Here's some code I wrote to solve a problem at the server I'm working on. Is this valid? I've tested it, and it works, but I would like some opinions on this.
It's basically a ...
- 39
2
votes
3
answers
10k
views
Simple parallel_for_each in C++
I need to parallelise a for loop that does quite a lot of processing over thousands of items. I came up with this basic loop that seems to work quite effectively on ...
- 121
4
votes
4
answers
5k
views
C++11 Blocking Queue learning exercise
As part of my own C++11 learning exercise I have implemented this Blocking Queue using the new C++11 thread API. One of the aspects I would like to improve is efficiency i.e. in the ...
- 141
5
votes
1
answer
2k
views
Hybrid Lock Implementation
I have an algorithm that is painfully slow if I use 'pure' mutexes. That's because most of the critical sections are short and far shorter than the work to sleep a thread. However, it is also slower ...
user59064
3
votes
1
answer
450
views
Implementation of FastICA in multithreading approach
I am to implement a parallel version of FastICA, so I implemented the serial version of FastICA.
Now this is the architectural diagram of how it is going to parallelize. I just coded a basic ...
- 131
9
votes
1
answer
5k
views
Continuation Implementation in C++11
While playing with the concurrency features in C++11 I noticed that there wasn't any support for continuations. I wanted to develop something similar to Tasks in The Parallel Patterns Library (PPL), ...
- 91
6
votes
1
answer
1k
views
C++ concurrency library
I started a C++11 library of concurrency primitives in order to
study and compare their performance;
provide high-quality implementation of those to use in my projects.
Its main target platform is ...
- 611
34
votes
2
answers
68k
views
A multi-threaded Producer Consumer with C++11
I am trying to learn concurrent programming in C++11. I tried to write code for a classic producer consumer concurrency problem. Would you please review and make any comments about it?
...
- 391
4
votes
1
answer
344
views
Parallel Reduction method with C++AMP
I am writing a C++AMP library, and as one of my utility methods I am implementing a parallel reduction algorithm based on the cascade method documented on this blog post with slight improvements by ...
- 275
2
votes
1
answer
217
views
Assigning an array of different (but convertible) type to concurrency::array in C++AMP
I am creating a vector class which can be manipulated on the GPU and I am using C++AMP for the GPU accelerated code.
I am wondering the most efficient way of assigning elements of a different type ...
- 275