Fork me on GitHub
 

OpenMP, automatic threading

Tired of creating threes and writing code to manage deadlocks and work queues? Search is cpu intensive, and we uses a lot of threads. For example indexes are sorted in parallel, and the pages that go on the result page is fetched from the disk and processed in parallel. We started out creating threads manually, but that i slow going in C. We have now almost entirely changed to OpenMP, and haven't looked back since.

Initializing a large array in parallel is as easy as this.

int main(int argc, char *argv[]) {
        const int N = 100000;
        int i, a[N];

        #pragma omp parallel for
        for (i = 0; i < N; i++)
                a[i] = 2 * i;

        return 0;
}
Example from Wikipedia.

OpenMP will decide how many threads to use.

Comments

Utminz
Nov 17, 2015

For me it is one of the most interesting share I see here on this site, I learn a lot of from this thing and it was very educatable info to look in, I suggest you to get something new like black desert online open beta test and you will gain more success in your work mate!


Albert M. Burks
Feb 19, 2016

It is the interesting thing to know. On seeing your college writing service I clear my doubts on deadlocks and work queues.  Keep posting this type of educational information. It is very useful for me and others who want to know important techniques and logics in programming language.


instaonline
Feb 27, 2016

Hey friend there is the many way to increase your instagram followers free to your instagram account and become famous social media celebrity to get the maximum tricky to get access the somebody else instagram followers hack how to get free followers for instagram and make easy to know the tricks to instagram to access your desire most of the hack can not done because of higher security and safety reasons, Its totally wrong to hack password any social nework is not possible and hack needs some condition to hack those facebook account.


Utminz
Jul 11, 2016

Do you really want to know how to Grow Grape Vines?  I think you will like this grapes growing tutorial and learn something new for yourself! Also very informative post, thank you for it! smile


akshay8899
Jul 15, 2016

all this post are very nice like mine about Free Recharge Tricks, Coupons & Promo Code, Free Recharge, Flipkart couponssnapdeal offersamazon couponFreecharge Promo codeMobikwik CouponsPaytm Promo code..the best thing is they all are nice to read


merlinjohn
Oct 12, 2016

I was not aware of the things related to Open MP and this article has helped me to learn about this very perfectly. The blog is providing so many educational subjects that are very informative and helpful to students and hope you will share more.  garage door maintenance Santa Ana


rhezaramsih
Nov 10, 2016

Thanks for such a great post and the review, I am totally impressed! Keep stuff like this coming. http://frutablendhwiasli.net/


rhezaramsih
Nov 10, 2016

I’ve been searching for some decent stuff on the subject and haven’t had any luck up until this point,  auberge-quebec dot info


Ohdroid
Dec 05, 2016

Your website when it comes to elegance, it has captured the sense of the readers. You wrote something different than any other of blogs aplikasi bbm . I want more similar topics about this post in future.
Thank you again for all the knowledge you distribute, Good post aplikasi fb.
Do Keep sharing ! Regards


Leave a Comment

Name *: (required)

Email : (not required) (will not be published)

URL: (not required)

Remember my personal information
Notify me of follow-up comments?

 
   
  Categories
  Uncategorized
  Feeds
  Rss

Copyright © Searchdaimon AS. All rights reserved.