FFTW 3.1.2 FREE DOWNLOAD

Sign up or log in Sign up using Google. Improving the question-asking experience. And if you're allready in russia make sure you look out for a job very soon I wonder if all the latest desasters like IPP 5. You can get this type of behaviour if all threads except one are locked out e. I'll guess the guys behind icc and ipp will have a serious talk with one of intels senior performance analyst very soon.

Uploader:	Meziran
Date Added:	20 January 2010
File Size:	23.40 Mb
Operating Systems:	Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads:	32065
Price:	Free* [*Free Regsitration Required]

I use FFTW 3. Fridooo Fridooo 11 2 2 bronze badges.

multithreading - Multi threaded FFTW on a shared memory computer - Stack Overflow

I now your working at it I'll guess the guys behind icc and ipp will have a serious talk with one of intels senior performance analyst very soon.

Email Required, but never shown. Even gcc compiled code ran faster. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service. Same goes for IPP 5. How are you calling the planner? Post as a guest Name. Stack Overflow works best with JavaScript enabled.

The FFTW Release Notes

Here are the results 33.1.2 For that reason IPP5. 3.1.22 anybody has any idea of what's going on here I assume you've read the notes on thread safety in the FFTW docs Improving the question-asking experience.

Sign up or log in Sign up using Google. You can get this type of behaviour if all threads except one are locked out e. You should profile different sizes and see where the break even point is.

Sign up using Email and Password. I go back to ICC 9. I use Fortran and I compile using ifort my code linking to the following libraries:. How do we handle problem users?

Downloading FFTW

Unicorn Meta Zoo 9: Thanks for the link to the testcase. Are all your function calls correctly synchronised? It works perfectly on one thread. And now the ICC 9. Sign up using Facebook. After doing some tests is was kind of shocked how poor the performace was.

However, even though the program runs perfectly, it is slower with 2 or more threads than with one.

Are you creating the plans in a single thread or on all threads? As you can see ICC Multi threaded FFTW 3. That will enable vectorization of the code which uses double precision floating point by enabling SSE2 and it will allow compiler to use instructions for complex arithmetic by 3.12 SSE3not to mention better code scheduling for your test CPU. Thanks for your replies.