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- From: adrianc@sunfen.uk.sun.com (Adrian Cockcroft - Sun UK - Cambridge SE - SPARC Specialist)
- Newsgroups: comp.arch
- Subject: Re: DEC ALPHA Performance Claims
- Date: 12 Nov 1992 13:41:25 GMT
- Organization: Sun Microsystems
- Lines: 39
- Distribution: world
- Message-ID: <1dtmu5INN38g@grapevine.EBay.Sun.COM>
- References: <BxKI38.DM7.2@cs.cmu.edu>
- Reply-To: adrianc@sunfen.uk.sun.com
- NNTP-Posting-Host: sunfen.uk.sun.com
-
- In article 2@cs.cmu.edu, lindsay+@cs.cmu.edu (Donald Lindsay) writes:
- >
- >sharpe@adodem.enet.dec.com writes:
- > [ A list of the MFLOPS the Alphas get, inverting dense matrices. ]
- > [ I have extended the list to give people a feel for the context. ]
- >
- >>
- >>System 100x100 dp 1000x1000 dp
- >>
- >Compaq Deskpro 486/33 1.4
- >DEC 5000/200 (25 MHz R3000) 3.7
- >Cray-1 11 31
- >>DEC 3000/400S AXP 26.4 70.8
- >>DEC 10000/610 AXP 42.5 111.6
- >Convex C3810 (1 proc) 44 113
- SPARCcenter2000 (20 proc) ~260 **
- >Cray C90 (1 proc) 387 874
- >
-
- ** this is a SINGLE Unix process that has been through a paralellising Fortran
- compiler and is running in parallel on all 20 CPU's. Uniprocessor is about 20
- and the MT synchronisation and non-parallelisable parts prevent the raw 400 MFLOPS
- being delivered to a 1000x1000 DPLinpack. I will try to get the full table showing
- results from 2-20 CPU's scaling pretty linearly, its not at hand right now (~260
- is from memory, I think its a bit higher).
-
- SPECrate92 figures are abut 8000 integer and 10000 fp for an 8 CPU system.
-
- There is a lot of interesting system architecture in the SPARCcenter2000,
- I hope to post a summary when I get a chance. The press release stuff has been
- posted to comp.sys.sun.hardware if you want to read the marketing pitch.
-
- Regards Adrian
-
- ---
- Adrian Cockcroft - adrian.cockcroft@uk.sun.com or adrian.cockcroft@sun.co.uk
- Sun Microsystems, 306 Science Park, Milton Road, Cambridge CB4 4WG, UK
- Phone +44 223 420421 - Fax +44 223 420257 Sun Mailstop: ECBG01
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