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| From: | Matteo Frigo |
| Subject: | Re: 2 questions about MXE |
| Date: | Tue, 25 Jun 2013 08:13:00 -0700 |
| User-agent: | K-9 Mail for Android |
On Tue, Jun 25, 2013 at 10:54 AM, Matteo Frigo <address@hidden> wrote:FFTW implements runtime detection of sse2 and avx. You can produce a combined sse2/avx binary that will run anywhere, including pre-sse machines. The windows binaries on fftw.org have this property.
Does that mean that if FFTW is configured with --enable-sse2 (or --enable-avx), SSE2(AVX) support will be compiled in but only used at runtime if the CPU supports it?Michael.
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