Multithreading in c# application

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How we Write an example of multithreaded C# code to fill int[10000] array with random numbers. Use the optimal number of threads for the current hardware configuration.
Please Give Me soluation
Thanks & Regards

Arvind Kumar Singh

Posted 16-Aug-11 12:17pm

Arvind_singh

Updated 16-Aug-11 12:24pm

Simon Bang Terkildsen

v2

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BobJanova · Answer 1 · 2011-08-17T01:15:00

Bear in mind that if you pass the same array around to different threads, you are likely to have issues with the core cache and data copying, and that will probably make the optimal number of threads 1 for such a trivial operation.

You should look at the Task Parallel Library as Simon mentioned if you are using .Net 4; if not, you should look at the ThreadPool. As this is presumably a homework exercise (it is a ridiculous requirement for any sort of business scenario) telling you where to start looking is as explicit as I will be.

#realJSOP · Answer 2 · 2011-08-17T01:19:00

Solution 3

Go here [^]

Posted 17-Aug-11 1:19am

#realJSOP

Comments

Simon Bang Terkildsen 17-Aug-11 7:26am

While I agree we're not to do other poeple homework or work for that matter for them, pointing them to resources they might be able to use doesn't hurt anyone and might actually teach them something.
If the OP had left out the "Please give me solution" part then I don't see anything wrong with the question whether it's homework or not.

#realJSOP 17-Aug-11 8:17am

He's asking for a solution, not help. I wrote a highly voted article here, but he couldn't take the time to actually do research before asking for code, so screw 'em.

Simon Bang Terkildsen 17-Aug-11 8:20am

Yeah I get what you're saying. I guess my patience has not been tried as much as yours. As I've only been an active participater here for a little over week now.

Simon Bang Terkildsen · Answer 3 · 2011-08-16T12:30:00

Solution 1

If you can use .NET 4.0 then Sacha Barber has written a series of articles about the Task Parallel Library. Here is the first one:
Task Parallel Library: 1 of n[^]

As for the optimal number of threads, I don't remember if mr. Barber convers that, but in most cases it would be best to let the ThreadPool handle that. ThreadPool is covered in mr. Barber's articles.

Posted 16-Aug-11 12:30pm

Simon Bang Terkildsen

Updated 17-Aug-11 1:20am

v2

Comments

BobJanova 17-Aug-11 7:11am

You actually linked to the last article. The first one is here: http://www.codeproject.com/KB/cs/TPL1.aspx

Simon Bang Terkildsen 17-Aug-11 7:20am

Hehe, thank you for pointing that out. I've updated the answer to link to the first article in the series.