🚀 go-pugleaf

RetroBBS NetNews Server

Inspired by RockSolid Light RIP Retro Guy

Article View: comp.dsp
Article #593

Re: I860 fft performance

#593
From: Ravi Rao
Date: Wed, 12 Aug 1992 18:51
28 lines
1412 bytes
In article <1992Aug6.125445.10704@nntp.nta.no> hlj@hal.nta.no writes:
>
>If the following two conditions are met:
>
>	1. All your data occupies less than 8 kbytes (such that all data
>	   is in the cache or in registers)
		Obviously, you don't know about the existence of the nex-gen
		860 which has 16K of data/instr cache. There are some other
		instr enhancements like 'pfld.q' to make use of full b/w.

>	2. Your algorithm is such that it can be implemented in i860
>	   pipelined mode (which is awkward to program)
		To get peak performance, you have to program most uP in 
		assembly language. There is no doubt that the i860 pipeline
		is hard to follow, but once you get the hang of it, its fairly
		easy..............

>
>***** hlj@hal.nta.no (Harald Ljo"en) expressing his private opinions ******


--
____________________________________________________
Ravi S. Rao
SP1-82	Intel Corpn, Chandler, AZ

e-mail: rrao@hopi.intel.com, rrao@pima.intel.com
____________________________________________________
Technical Details
Message-ID: <12948@inews.intel.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!iWarp.intel.com|inews!pima!rrao
References: <713099311.0@halluc.com> <1992Aug6.125445.10704@nntp.nta.no>

Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!sparky!uunet!iWarp.intel.com|inews!pima!rrao
From: rrao@pima.intel.com (Ravi Rao)
Newsgroups: comp.dsp
Subject: Re: I860 fft performance
Message-ID: <12948@inews.intel.com>
Date: 12 Aug 92 18:51:05 GMT
References: <713099311.0@halluc.com> <1992Aug6.125445.10704@nntp.nta.no>
Sender: news@inews.intel.com
Organization: Intel Corp, Chandler, AZ
Lines: 29