Path: utzoo!attcan!uunet!ns-mx!iowasp.physics.uiowa.edu!maverick.ksu.ksu.edu!ux1.cso.uiuc.edu!brutus.cs.uiuc.edu!zaphod.mps.ohio-state.edu!rpi!crdgw1!crdos1!davidsen From: davidsen@crdos1.crd.ge.COM (Wm E Davidsen Jr) Newsgroups: comp.arch Subject: Re: LINPACK 1000x1000 MFLOPS per $$$ Message-ID: <2349@crdos1.crd.ge.COM> Date: 20 Jul 90 12:02:03 GMT References: Reply-To: davidsen@crdos1.crd.ge.com (bill davidsen) Organization: GE Corp R&D Center, Schenectady NY Lines: 24 In article mccalpin@pereland.cms.udel.edu (John D. McCalpin) writes: | (2) The $13,000 configuration includes no monitor or graphics adapter, | etc. It is strictly a server, configured with 16 MB RAM and 120 MB | disk. NFS is used to store results directly onto my graphics | workstation. You have defined the solution by picking the dataset... You are talking about a tiny problem here, not at all typical of what is run on a Cray. Certainly there are problems requiring lots of CPU and tiny memory, and it's nice that you have one. Workstations are good at that. We run dedicated troff servers here, and they're workstations, too. If you define the dataset to be typical Cray size, say 500MB, the workstation becomes impractical. And if you assume non-vectorable very large problems the Cray2 has the edge in scalar speed. This is a lot like saying that you want to haul a bag of groceries at 100mph, and therefore sports cars are killing trucks. You have a sports car problem here, and your solution is cost effective. So? We still need trucks. -- bill davidsen (davidsen@crdos1.crd.GE.COM -or- uunet!crdgw1!crdos1!davidsen) "Stupidity, like virtue, is its own reward" -me