Mathematica, advertised as a one stop for technical work that integrates a numeric and symbolic computational engine, graphics system, programming language, documentation and advanced connectivity to other applications. Not only does this application have parallel functionality built into it from the ground up. The Wolfram Mathematica web site has extensive documentation, including numerous detailed tutorials. 

Mathematica related:

Where can I find more Mathematica documentation?

The vendor's website and the online help in the application. In addition look at the broadcast section on the vendor site to view various movies on how to do many tasks in Mathematica. Also check out some paper based options.

My Mathematica notebook file doesn't work like it did before, what is up?
The following explanation is a good starting point to explore this issue.

How does one submit a mathematica batch job?
Suppose you have a text file called my_mathematica.m created with a text editor with the following tasks:

I get an error about Mathematica missing fonts,etc... What does this mean?

The cluster does not provide a Font Server supporting Mathematica font sets. Whereas a local install of Mathematica on your desktop includes this font set. Remote users need to provide access to the fonts locally.

For linux desktops, the easy way is to obtain the Mathematica helper program called, Mathematica Player. You may download this from the vendor website. Before you start Mathematica on the cluster for display on your computer, start the helper program locally. This will provide the font support.

For MacOSx desktops you need to either install Mathematica or the Mathematica Player and then point to the installed fonts. For example if you have Mathematica installed, to use it's fonts, open a terminal window(shell) and type:
> xset fp+ /Applications/Mathematica.app/SystemFiles/Fonts/Type1/
> xset fp rehash
Assuming that is the path to the fonts.
Then connect to the cluster and start Mathematica normally.