Date: Sun, 2 Aug 1998 08:50:00 +0200 (SAT) From: Peter van Heusden <pvh@leftside.wcape.school.za> To: hackers@FreeBSD.ORG Cc: Stephen Hocking-Senior Programmer PGS Tensor Perth <shocking@prth.pgs.com> Subject: Re: Fast FFT routines with source? Message-ID: <Pine.BSF.3.95.980802084732.19537A-100000@leftside.wcape.school.za> In-Reply-To: <199808011746.KAA02952@antipodes.cdrom.com>
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On Sat, 1 Aug 1998, Mike Smith wrote: > > I'm part way through porting this company's seismic data processing code to > > FreeBSD and have got most things sorted out except for the fact that there > > doesn't seem to be any carefully optimised fft routines available. I do have > > the fftpack as found in ports, but I was wondering if there was anything > > faster than taht available with source. > > > > Oh, and if anyone knows where to find the source of X widgets that'll display > > seismic traces, power spectrums and the like, I'd be most grateful. > > Go to Research Systems Inc (www.rsinc.com) and get a copy of IDL. The > Linux version of IDL 5 should work fine. You will have to learn their > bastardised Fortran/Motif mix, but as a tool for what you're trying to > do it's *very* difficult to beat. > > This will, of course, mean beating on your company's code quite a bit... And if you are interested in IDL, have a look at the perl PDL module (actually mostly written in C, with a XS interface to perl), which also includes FFT code (and has a good reputation for speed, as I recall). Peter -- Peter van Heusden | Its the 90's, and collective action is STILL cool! pvh@leftside.wcape.school.za | Get active in your union today! To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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