Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!seismo!rutgers!ames!ucbcad!ucbvax!tekgvs.tek.com!benw From: benw@tekgvs.tek.com (Benjamin Ward) Newsgroups: mod.computers.workstations Subject: SUN-3/ZIP 3232(+) access time questions Message-ID: <8612122016.AA07184@tekgvs.TEK> Date: Fri, 12-Dec-86 15:16:20 EST Article-I.D.: tekgvs.8612122016.AA07184 Posted: Fri Dec 12 15:16:20 1986 Date-Received: Tue, 16-Dec-86 21:58:55 EST Sender: daemon@ucbvax.BERKELEY.EDU Reply-To: tekgvs!benw (Benjamin Ward) Organization: Tektronix, Inc., Beaverton, OR. Lines: 12 Approved: works@red.rutgers.edu I am interested in knowing how quickly the Sun-3 to Mercury ZIP 3232+ (or similar array processor) interface runs. For example, suppose you want to multiply two 32 bit real numbers A and B using the ZIP. Assume that the multiply routine is already resident in the ZIP. The overall multiply will require two DMA calls and a routine (multiply) call to the ZIP. How long does this take? (what I am asking is what is the "real" overhead in using this array processor over the VME bus?) If anyone has run some benchmarks I whould love to converse with them by phone/mail. I am Benjamin Ward, Tektronix Inc. 50-370, Beaverton, OR 97077, (503)627-6024, with a net address of tektronix!tekgvs!benw. Please respond directly and thank you to anyone who does respond.