Intel® oneAPI Math Kernel Library
Ask questions and share information with other developers who use Intel® Math Kernel Library.
Announcements
FPGA community forums and blogs have moved to the Altera Community. Existing Intel Community members can sign in with their current credentials.
7234 Discussions

MKL DFT versus FFTW3.1

Henneking__Stefan
Beginner
‎03-21-2006 01:48 PM
975 Views
It seems to me that the new version of FFTW (released this january) is faster (e.g. ~20% for 512 points complex 1d double_precision) than the MKL8.0 routines, at least on Itanium systems.
I just did some rough performance analysis with a code using either FFTW3.1 or MKL8.0. Does anybody have detailed data? The Intel page deals with the outdated FFTW3.0.1 only.

cheers
Stefan
0 Kudos

Link Copied

2 Replies
ttppo
Beginner
‎03-29-2006 02:52 PM
975 Views
512-point fft? FFTW seems slower than MKL8.0:
http://www.fftw.org/speed/Pentium4-3.60GHz-icc/
0 Kudos
Copy link
ttppo
Beginner
‎03-29-2006 03:02 PM
975 Views
My God! MKL8.0.1 is even faster than AMD Core Math Library (ACML3.0) on Opteron.
Opteron is so slow! So poor the float-point preformence!
http://www.fftw.org/speed/opteron-2.2GHz-64bit/
0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.