http://acesgrid.org/http://acesgrid.org/
Overview
The ACES clusters stands for Alliance for Computational Earth Science (ACES) ad I got access from [greg] by emailing him, and he provided access within 24 hours. This came with an email from the grid system itself with a link to their website with lots of useful information. This includes the times for office hours (Tuesdays from 11:30-1:30) and a list of software.
Information
Their website has really good information, really all you need to know about the cluster. If you have any specific questions, you should look there because it will likely give you everything you need to know.
http://acesgrid.org/getting_started.html
I'll just summarize some of the important things that I found useful.
Storage
Because we don't have our own Alm lab storage and back-up system, you are only allowed to have access to 1GB on your home drive. Although I think there is quite a lot of memory available on a scratch drive, but it is for short term storage and will be deleted automatically. So this might be a good option when you want to do something which requires a lot of computational power to finish processing something, then you can move it off and store else where. Look at the webpage for specifics.
MatLAB
I was specifically looking for a new way to use Matlab since I was using it on beagle but that went down. This is how to get matlab working with Aces
http://acesgrid.org/matlab.html
Summary
In summary, this cluster might be good for a few specific tasks, but it's not good for long term storage, and it's geared towards the earth science crowd and modeling ocean circulation etc. It might have some functional capabilities that you could use (i.e. Matlab), but be careful not to leave data on their scratch because it will be deleted.