Xref: utzoo comp.sys.next:18193 comp.dsp:1727 Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!zaphod.mps.ohio-state.edu!sdd.hp.com!news.cs.indiana.edu!ariel.unm.edu!cs.umn.edu!ux.acs.umn.edu!vz.acs.umn.edu!pukite From: pukite@vz.acs.umn.edu (J. PUKITE) Newsgroups: comp.sys.next,comp.dsp Subject: Re: DSP Chip in NeXT -- how can we use it? Message-ID: <4023@ux.acs.umn.edu> Date: 30 May 91 02:38:16 GMT References: <1991May25.023910.8736@shaman.com> Sender: news@ux.acs.umn.edu Reply-To: pukite@vz.acs.umn.edu Followup-To: comp.sys.next Organization: DAINA Lines: 21 News-Software: VAX/VMS VNEWS 1.3-4 In article <1991May25.023910.8736@shaman.com>, jiro@shaman.com (Jiro Nakamura) writes... > [... deleted] > I'd especially like to hear from academia. What are the scientific >uses of the DSP? Or is it an albatross? I think that a NeXT without the DSP >is like castrating it into a Mac, but what can we use it for? Can we >explore some possibilities? How about the ten wackiest things to do with >the DSP (no boring things like: fax modem, ECG recorder, powerglove monitor, We have investigated some scientific applications using a floating-point DSP in statistical computations and simulation. Using an AT&T DSP32 we were able to achieve an average computation speedup of 100 over a conventional 20 MHz 386. For details see our paper in the Winter 1990/1991 issue of Simulation Digest (a joint publication of ACM SIGSIM and IEEE Computer Society TCSIM): "Digital Signal Processors for Computation Intensive Statistics and Simulation", pp.20-29. J.Pukite/DAINA pukite@vz.acs.umn.edu