Manual

July 7, 2017.
On Wednesday, July 12, the Livermore Computing Data Storage Group will release a new version of HTAR on all open (OCF) and secure (SCF) production machines. HTAR—a utility that combines a flexible file-bundling tool with fast parallel access to high performance storage—allows users to store and selectively retrieve very large sets of files efficiently. This update to HTAR allows specifying entries to exclude during creation of new archive files.

IBM Spectrum LSF is a batch scheduler that allows users to run their jobs on Livermore Computing’s (LC) Sierra (link is external) (CORAL) high performance computing (HPC) clusters. IBM Cluster System Management (CSM) is the resource manager for the Sierra systems.

In addition to our Tutorials, users of Livermore Computing (LC) systems have access to several types of user information and documentation. Questions may be directed to the LC Hotline via e-mail or via telephone at (925) 422-4531. 

This page includes a table that helps determine what is needed to access classified (SCF), unclassified Collaboration Zone (OCF-CZ), and unclassified Restricted Zone (OCF-RZ) Livermore Computing (LC) systems.

EZFILES helps you effectively manage your files and directories on Livermore Computing (LC) computers. EZFILES explains the hierarchical structure of directories and file systems on LC computers, the properties and limits of those directories, the role of the common home directory, and the default search paths.

Slurm is a combined batch scheduler and resource manager that allows users to run their jobs on Livermore Computing’s (LC) high performance computing (HPC) clusters.  This document describes the process for submitting and running jobs under the Slurm Workload Manager.

The Livermore Computing (LC) Identity Management (IdM) System automates the process of provisioning (creating and updating) and deprovisioning (deleting) user accounts across LC's multiple systems. IdM also allows the management of of accounts, groups, and LC identities for both the Open Computing Facility (OCF)—Collaboration Zone (CZ) and Restricted Zone (RZ)—and the Secure Computing Facility (SCF).

This is a quick start guide for LSF, a batch scheduler that allows users to run their jobs on Livermore Computing’s (LC) Sierra (link is external) (CORAL) high performance computing (HPC) clusters.

At Lawrence Livermore National Laboratory and increasingly more places, very large displays are being used in theatres for scientific visualization. These displays contain thousands of pixels in both X and Y, which combine to total several million pixels. To utilize these displays, very large movies are created. These movies, which are greater than about 1 million pixels, may play back unevenly due to the inability to move them off disk fast enough to render at the optimal frame rate, usually 30 fps.

FTP

FTP (File Transfer Protocol) is an industry-standard protocol and user interface for transferring files between computer systems by means of a series of interactive commands. FTP involves a local client (software you execute to send or receive files) and a remote server (software elsewhere that responds to instructions from your client to accept or deliver files).

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