1 / 17

CCPR Workshop Lexis Cluster Introduction

CCPR Workshop Lexis Cluster Introduction. October 19, 2007 David Ash. Outline. What is a cluster? ….two components. Outline Continued…. How can CCPR’s cluster help you? Lexis usage Connecting from Windows Unix commands Submitting jobs Managing jobs. Lexis Management System.

russell-cochran
Télécharger la présentation

CCPR Workshop Lexis Cluster Introduction

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. CCPR WorkshopLexis Cluster Introduction October 19, 2007 David Ash

  2. Outline • What is a cluster? ….two components

  3. Outline Continued… • How can CCPR’s cluster help you? • Lexis usage • Connecting from Windows • Unix commands • Submitting jobs • Managing jobs

  4. Lexis Management System • Jobs are submitted via cluster management system • An advanced batch system • Efficiently allocates resources to jobs • Remembers node specs and availability • Schedules jobs according to requested resources and priority • Users can easily view jobs

  5. How does this help your research? • Remote access to software and data from anywhere! • Incredible machines – faster processors and more memory • Flexible system to share data and programs with colleagues • Opens up your home/office PC for other things, instead of grinding away on a Stata job • Advanced users: parallelization, fast compilers

  6. Connecting to Lexis • Secure Shell Software • SSH (command line access) • SFTP (file transferring access) • Obtain from: http://computing.sscnet.ucla.edu/public/security/ssh.aspx • Alternative Client Software • PuTTY (SSH) http://the.earth.li/~sgtatham/putty/latest/x86/putty.exe • winSCP (SFTP) http://winscp.net/eng/download.php

  7. Connecting to Lexis: Secure Shell • Directions for SSH Secure Shell: • Click Quick Connect • Enter: • Host Name: lexis.ccpr.ucla.edu • User Name: your lexis account name • Port Number: 22 • Click connect and enter password • Can “Add Profile” for repeat usage • Same for SSH Secure File Transfer

  8. Mapping Lexis as a Drive using Samba • Creating Lexis as a drive in Windows Explorer • Must use the VPN to do this action off campus! • http://www.bol.ucla.edu/services/vpn/ • Instructions I’m going to show are at: • Step-by-step instructions: • http://lexis.ccpr.ucla.edu/using/samba/

  9. Mapping Lexis • Open Windows Explorer • Select Tools -->Map Network Drive • At "Folder" text box enter: \\lexis.ccpr.ucla.edu\your-user-name • Click "Reconnect at login" if you want the drive to be connected each time the computer starts • Click the "different user name" link to enter your user name and password for the connection. • Click "OK" then click the "Finish" button on the Map Network Drive window.

  10. Linux Commands

  11. Getting Help in Linux

  12. Linux File Editors • Pico – easiest editor. Open and type. Commands listed at bottom of editor. • Vi – more advanced. You can move around quickly, do copy/paste, search, etc, but keystrokes required for everything. • Emacs – most advanced • OR edit files over Samba from Windows.

  13. Submitting Stata and SAS jobs • Submit jobs to the Cluster using ONE of the following commands: qjob, qstata, qsas, qmatlab • Will be prompted for: • Job type (for qjob only!) • Filename • Amount of Memory (number in megs, ex. 1050) • If memory > 1 gig --> Over 2 hours (y/n) • Confirmation to submit (y/n) • Quick Method: • qstatasample.do 500 y

  14. Qstata example output • Two Logs are created • filename.log - This is the log file from Stata. The output of your entire Stata job is captured in this file. • filename.do.joblog - This file will capture the output of your cluster command file and any errors that may occur (Stata output is NOT captured by this log.) • filename.do.cmd - This is the command file that is submitted to the cluster. • Quick TIP: qsub filename.do.cmd

  15. Cluster job monitoring • qstat or qstatus to view overall cluster usage • qstat –jjobnumber for information particular to your job • qdel jobnumber to kill your job

  16. Interactive Sessions • Interactive Usage • Meant for testing before submitting to cluster • Limited spots • Logoff promptly when finished • Non-GUI Interactive Session • Type “qinteractive”, can also specify memory after command. Default 256mb. • GUI Interactive Session • Login with XliveCD • Type “qlive” – Run sas/matlab/xstata

  17. Questions / Comments?

More Related