User Manuals | Tutorials | MOTDs | Online News | Technical Bulletins | User Meeting Viewgraphs

Users of Livermore Computing (LC) systems have access to several types of user information and hardware and software documentation.

Questions may be directed to the LC Hotline via e-mail to or via telephone to (925) 422-4532.

User Manuals

In addition to sharing information provided by commercial software vendors, ASC collaborators, and standard UNIX sources, LC publishes its own documentation that primarily addresses those tasks, tools, and techniques important to LC users but neglected by other documentation providers. The alphabetical index of LC documentation lists the individual user manuals by title.

Each LC system has a /usr/local/docs documentation directory in which users will find numerous helpful documents from FAQs to "gotchas" to "do's and dont's."


LC offers introductory and topic-specific tutorials and training materials covering a wide range of subjects. LC's training materials provide overviews on LC's hardware and software environment as well as tutorials for developing, debugging, running, and tuning parallel programs on the various LC platforms.


The messages of the day are listed after you log in to any machine. They are specific to a machine.

Online News

News items are listed when you log in to any machine.

  • To read a news item, type news item_name
  • To list unread news items: news -n
  • To display the contents of all news items: news -a | more
  • To list the names of all news items: ls -CF usr/local/news
  • To read a particular news item: news filename
  • To save a news item to a file: news filename > newfilename

Technical Bulletins

Technical bulletins provide three types of information: they alert users to changes and new policies, they announce training classes and workshops being offered on how to use LC hardware and software, and they describe the agendas for the LC monthly user meetings. Copies of every bulletin are mailed to our onsite users, and the bulletins are also available online. The index of technical bulletins provides online access to all bulletins; there is also a class announcements index and an LC monthly meeting index.

Customer Meeting Viewgraphs

The purpose of the LC customer meetings is to share information about LC software and hardware issues and get feedback from customers about these issues or plans. Short, informal presentations are regularly given by customers summarizing the work being done on LC machines so LC staff and other customers can better utilize the resources. The viewgraphs from the customer meetings provide information about the current status of production machines and updates on machines under development.