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- From: glenr@aruba.UUCP (Glen Reesor)
- Subject: 64bit Floating Point Performance
- Sender: news@aruba.uucp (News Software)
- Message-ID: <1993Jan22.233359.23063@aruba.uucp>
- Date: Fri, 22 Jan 1993 23:33:59 GMT
- Reply-To: aruba!glenr@uu2.psi.com
- Organization: Project Zed
- Keywords: Precision, Floating Point
- Lines: 30
-
- I am looking for 64-bit floating point performance figures in order to
- determine what workstation to buy. The application is in thermalhydraulics
- and 64-bit precision is required. This application is currently running
- on a Cyber mainframe and one run can take on the order of days to complete.
- Because of this, graphics performance and disk performance are a
- non-issue.
-
- The machines I've been told would be good to consider are:
-
- - HP 9000/7xx (32-bit)
- - IBM RS6000 (32-bit)
- - Sun (32-bit)
- - SGI Crimson (64-bit)
- - Dec Alpha (Running Unix) (64-bit)
-
- Now, 64 bits precision is required, but a 64-bit chip will not necessarily
- be required, since one of the 32-bit architectures could be sufficiently
- fast to outperform a 64-bit one. BTW, the application is written in Fortran.
-
- I am looking for real-world experience with any of these platforms and thus
- advice on relative floating point speeds.
-
- Finally, the price should be in the $50K range.
-
- Any advice would be greatly appreciated. Please respond via e-mail. I
- will summarize to the net if there is interest.
-
- --
- Glen Reesor | Internet Style: aruba!glenr@uu2.psi.com
- | UUCP : ...!uunet!aruba!glenr
-