Quickly looking for something on Dell, I configured the following for
$1500.  This is definitely NOT the best price possible for this sort
of machine, and I don't necessarily recommend Dell, I just wanted to
get a conservative ballpark estimate.

processor: Intel® Core™ 2 Quad Q9650 with VT (3.0GHz, 12M, 1333MHz
FSB)
2 320 GB harddrives
memory: 8GB DDR2 Non-ECC SDRAM, 800MHz, (4DIMM)

Shopping around you could probably get a lot closer to $1000.  The key
thing I think is to get a machine that can be upgraded to at least 8
GB of RAM, even if you don't buy that much initially.  Although as
Jason pointed out, the memory is relatively cheap once you have a
board that can handle it.

A barebones quad-core Mac Pro with 3 GB RAM is $2500, but they are
very nice machines.  The memory is 1066MHz DDR3 ECC SDRAM, which  is a
little better than the Dell above, and can be upgraded to 16 GB.  You
can buy 3rd party memory for the Mac Pro for much, much less than from
Apple.

-Marshall

On Dec 12, 8:58 am, [email protected] wrote:
> Dana Ernst wrote:
> >>> 8GB RAM and at least 4 cores.  Get something that runs Linux well.
>
> >> How many students are you planning on supporting?  (I mean simultaneous
> >> Sage sessions, where each worksheet open counts as a Sage session).
>
> > Initially, I think we would never have more than 25 sessions going at the 
> > same time.  However, I'm hopeful that Sage will get used in more and more 
> > classes and that this number will increase over the next couple years.
>
> >> I think I would budget about 80MB of RAM just for each open Sage
> >> session.  Add another 140MB or so for the Sage server, and another 500MB
> >> or so for the operating system.  Then add up what you need for WebWork,
> >> etc.  Then give yourself *plenty* of cushion (memory is relatively
> >> cheap---I just looked it up for the Sage server we are setting up at
> >> Drake, and for us, it's about $35/GB from Newegg).
>
> > Ignoring WebWork, etc. and assuming we plan for 25 simultaneous Sage 
> > sessions, anyone feel like taking a wild guess at how much a server would 
> > cost to meet Jason's suggested minimum requirements?  I'm trying to get a 
> > sense for what I'm going to have to do to obtain one of these suckers...
>
> For 25 simultaneous sessions, I'd have a minimum of 3GB of RAM *just*
> for Sage (not counting operating system, WebWork, etc.).  If you're
> running Sage in a virtual machine (which makes it easy to clean things
> up if people start getting malicious), then I'd go no less than 4GB for
> the machine.  8GB would be a lot more comfortable and would leave room
> for growth.
>
> I think 1000-2000 (plus or minus a million dollars :) would buy a good
> server with those requirements.  But your IT guy is the expert there.
>
> For Drake, we found an unused server in the computer science side of the
> department.  All I have to do is find/buy the RAM for it now.  You might
> ask around to see if there are any unused servers laying around.
>
> Jason

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