Path: utzoo!attcan!uunet!lll-winken!ames!sgi!thant@horus.SGI.COM
From: thant@horus.SGI.COM (Thant Tessman)
Newsgroups: comp.sys.sgi
Subject: Re: What is the real Speed of a 4D/240 ?
Summary: memory problem
Message-ID: <31517@sgi.SGI.COM>
Date: 27 Apr 89 18:05:59 GMT
References: <139@VAX1.CC.UAKRON.EDU>
Sender: daemon@sgi.SGI.COM
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 33

In article <139@VAX1.CC.UAKRON.EDU>, tim@VAX1.CC.UAKRON.EDU (Timothy H Smith) writes:
> We have just obtained a 4D/240 and are using it for scaler
> floating point operations.  We do not need a vector machine.
[stuff deleted]
> Also when the machine is running some reasable jobs the interactive
> response goes to nothing.  I mean 5 minutes for a ls.
> I know the machine need more memory, but I don't expect this.
[stuff deleted]
> 
> Our machine is a 4D/240S with 16meg of memory.
> 

I once worked with a 4D/120 with 8 meg.  It was next to useless.  I don't 
think they should sell them like that (with that little memory).

You have twice as much memory but you also have twice as many processors.
Run gr_osview to see if it is spending all its time swapping.

The compilers are from MIPS and are generally considered excelent.
If you really are getting different answeres with optimised versus 
non-optimised code, you should report it to the hotline as a bug.  
(Narrow it down and post it to the net?)

> 
> 				thanks,
> 
> 				tim@vax1.cc.uakron.edu
> 
> *** my comments are mine and do not reflect my orginization ***

ditto

thant@sgi.com