Administering Platform LSF - SAS

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$Intel(R) Math Kernel Library for Linux* OS User's Guide$

About User Authentication Privileged ports authentication (setuid) This is the mechanism most UNIX remote utilities use. The LSF commands must be installed as setuid programs and owned by root. If a load-sharing program is owned by root and has the setuid bit set, the LSF API functions use a privileged port to communicate with LSF servers, and the servers accept the user ID supplied by the caller. This is the same user authentication mechanism as used by the UNIX rlogin and rsh commands. When a setuid application calls the LSLIB initialization routine, a number of privileged ports are allocated for remote connections to LSF servers. The effective user ID then reverts to the real user ID. Therefore, the number of remote connections is limited. An LSF utility reuses the connection to RES for all remote task executions on that host, so the number of privileged ports is only a limitation on the number of remote hosts that can be used by a single application, not on the number of remote tasks. Programs using LSLIB can specify the number of privileged ports to be created at initialization time. LSF_EAUTH in lsf.conf If you do not define LSF_AUTH in lsf.conf, privileged ports (setuid) authentication is the default user authentication used by LSF. Installation with lsfinstall sets LSF_AUTH=eauth automatically. To use setuid authentication, you must remove LSF_AUTH from lsf.conf. Identification daemon (identd) LSF also supports authentication using the RFC 931 or RFC 1413 identification protocols. Under these protocols, user commands do not need to be installed as setuid programs owned by root. You must install the identd daemon available in the public domain. The RFC 1413 and RFC 931 protocols use an identification daemon running on each client host. RFC 1413 is a more recent standard than RFC 931. LSF is compatible with both. Using an identification daemon incurs more overhead, but removes the need for LSF applications to allocate privileged ports. You should use identification daemons if your site cannot install programs owned by root with the setuid bit set, or if you have software developers creating new load-sharing applications in C using LSLIB. An implementation of RFC 931 or RFC 1413 such as pidentd or authd can be obtained from the public domain. If you have Internet FTP access, a good source for identification daemons is host ftp.lysator.liu.se, directory pub/ident/servers. LSF_EAUTH in lsf.conf Installation with lsfinstall sets LSF_AUTH=eauth in lsf.conf automatically. To use identd authentication, you must set LSF_AUTH=ident in lsf.conf. 496 Administering Platform LSF
Chapter 38 Authentication How LSF determines the user authentication method LSF uses the LSF_AUTH parameter in the lsf.conf file to determine which type of authentication to use: If LSF_AUTH is ... LSF uses ... eauth External authentication (eauth) Not defined Privileged ports (setuid) ident Identification daemon (identd) LSF_AUTH=eauth LSF_AUTH=ident or undefined LSF_AUTH=eauth is set automatically during installation with lsfinstall. LSF runs the external executable eauth in the LSF_SERVERDIR directory to perform the authentication. If a load-sharing application is not setuid to root, library functions use a nonprivileged port. If the LSF_AUTH parameter is not set in lsf.conf, the connection is rejected. If LSF_AUTH is defined to be ident, RES on the remote host, or mbatchd in the case of a bsub command, contacts the identification daemon on the local host to verify the user ID. The identification daemon looks directly into the kernel to make sure the network port number being used is attached to a program being run by the specified user. LSF allows both the setuid and identification daemon methods to be in effect simultaneously. If the effective user ID of a load-sharing application is root, then a privileged port number is used in contacting RES. RES always accepts requests from a privileged port on a known host even if LSF_AUTH is defined to be ident. If the effective user ID of the application is not root, and the LSF_AUTH parameter is defined to be ident, then a normal port number is used and RES tries to contact the identification daemon to verify the user’s identity. setuid permission on LSF administration commands The LSF administration commands (lsadmin and badmin, etc.) are installed setuid by default. All other LSF commands except the administration commands can be run without setuid permission if an identification daemon is used. If your file server does not permit setuid permission, you should install LSF_BINDIR on a file system that does allow setuid. Administering Platform LSF 497
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Administering Platform LSF® Versio
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Contents Welcome . . . . . . . . .
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Contents Part II: Working with Reso
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Contents 17 Reserving Resources . .
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Contents 30 External Job Submission
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Contents 40 Non-Shared File Systems
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Welcome Contents ◆ “About This
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Welcome Command notation Notation M
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Welcome Platform LSF License Schedu
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Welcome Resource requirement specif
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Welcome Run-time enhancements Threa
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Welcome Environment variables ◆
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Welcome New files added to installa
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Technical Support Contact Platform
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C H A P T E R 1 About Platform LSF
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Chapter 1 About Platform LSF Job sl
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Chapter 1 About Platform LSF Master
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Chapter 1 About Platform LSF Master
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Chapter 1 About Platform LSF Host t
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Chapter 1 About Platform LSF Extern
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Chapter 1 About Platform LSF Job Li
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C H A P T E R 2 How the System Work
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Chapter 2 How the System Works Queu
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Chapter 2 How the System Works Disp
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Job Execution Environment Shared us
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Fault Tolerance Dynamic master host
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P A R T I Managing Your Cluster Con
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Viewing Cluster Information Viewing
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Default Directory Structures Defaul
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Default Directory Structures Window
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Controlling Daemons Controlling Dae
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Controlling mbatchd Controlling mba
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Reconfiguring Your Cluster 3 Run ba
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Host States Host States Host states
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Viewing Host Information Viewing Ho
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Viewing Host Information type Viewi
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Controlling Hosts Controlling Hosts
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Adding a Host Adding a Host Use lsf
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Removing a Host Removing a Host CAU
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Adding and Removing Hosts Dynamical
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Adding and Removing Hosts Dynamical
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Adding Host Types and Host Models t
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Registering Service Ports NIS or NI
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Host Naming Host Naming Network add
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Hosts with Multiple Addresses Examp
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Host Groups Host Groups Where to us
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Tuning CPU Factors Tuning CPU Facto
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Handling Host-level Job Exceptions
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Handling Host-level Job Exceptions
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Queue States Queue States Queue sta
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Viewing Queue Information SCHEDULIN
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Controlling Queues Controlling Queu
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Controlling Queues Dispatch Windows
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Managing Queues Managing Queues Res
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Handling Job Exceptions Configuring
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Job States Job States The bjobs com
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Job States Viewing wait status and
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Viewing Job Information Viewing exc
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Switching Jobs from One Queue to An
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Suspending and Resuming Jobs Suspen
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Sending a Signal to a Job Sending a
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Using Job Groups Creating a job gro
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Using Job Groups % bhist -l 105 You
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Viewing User and User Group Informa
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About User Groups About User Groups
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LSF User Groups LSF User Groups You
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LSF User Groups 134 Administering P
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C H A P T E R 8 Understanding Resou
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Chapter 8 Understanding Resources T
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Chapter 8 Understanding Resources S
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How LSF Uses Resources Viewing job
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Chapter 8 Understanding Resources S
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Chapter 8 Understanding Resources V
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Chapter 8 Understanding Resources A
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C H A P T E R 9 Adding Resources Co
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Adding New Resources to Your Cluste
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Chapter 9 Adding Resources Configur
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Static Shared Resource Reservation
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Chapter 9 Adding Resources Configur
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Chapter 9 Adding Resources ELIM res
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Modifying a Built-In Load Index Con
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P A R T III Scheduling Policies Con
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Specifying Time Values Specifying T
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Specifying Time Expressions Specify
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Automatic Time-based Configuration
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Deadline Constraint Scheduling Dead
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Exclusive Scheduling 176 Administer
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About Preemptive Scheduling About P
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How Preemptive Scheduling Works Job
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Configuring Preemptive Scheduling Q
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Configuring Preemptive Scheduling 1
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About Resource Requirements About R
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Queue-Level Resource Requirements V
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About Resource Requirement Strings
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Selection String Selection String S
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Order String Order String Syntax De
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Usage String Example rusage[mem=50:
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Span String Span String Syntax A sp
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Same String 200 Administering Platf
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About Fairshare Scheduling About Fa
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User Share Assignments Examples ◆
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Dynamic User Priority Default dynam
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Host Partition Fairshare Host Parti
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Queue-Level User-based Fairshare Qu
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Cross-queue Fairshare bqueues -l al
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Cross-queue Fairshare 3 In all the
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Hierarchical Fairshare Viewing hier
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Queue-based Fairshare Queue-based F
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Configuring Slot Allocation per Que
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Viewing Queue-based Fairshare Alloc
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Typical Slot Allocation Scenarios T
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Typical Slot Allocation Scenarios W
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Typical Slot Allocation Scenarios T
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Using Historical and Committed Run
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Using Historical and Committed Run
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Users Affected by Multiple Fairshar
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Ways to Configure Fairshare Ways to
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Ways to Configure Fairshare Example
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Using Goal-Oriented SLA Scheduling
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Using Goal-Oriented SLA Scheduling
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Configuring Service Classes for SLA
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Viewing Information about SLAs and
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Viewing Information about SLAs and
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Understanding Service Class Behavio
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C H A P T E R 16 Resource Allocatio
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Chapter 16 Resource Allocation Limi
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C H A P T E R 17 Reserving Resource
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Chapter 17 Reserving Resources Usin
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Chapter 17 Reserving Resources Usin
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Chapter 17 Reserving Resources View
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C H A P T E R 18 Managing Software
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Host Locked Licenses Chapter 18 Man
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Network Floating Licenses Chapter 1
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Chapter 18 Managing Software Licens
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C H A P T E R 19 Dispatch and Run W
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Run Windows Configuring run windows
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C H A P T E R 20 Job Dependencies C
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Chapter 20 Job Dependencies ◆ In
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Chapter 20 Job Dependencies externa
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C H A P T E R 21 Job Priorities Con
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Chapter 21 Job Priorities Specifyin
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C H A P T E R 22 Job Requeue and Jo
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Chapter 22 Job Requeue and Job Reru
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C H A P T E R 23 Job Checkpoint, Re
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Approaches to Checkpointing Kernel-
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Chapter 23 Job Checkpoint, Restart,
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Checkpointing a Job Prerequisites C
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Making Jobs Checkpointable Manually
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Enabling Periodic Checkpointing At
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Restarting Checkpointed Jobs Requir
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Chapter 23 Job Checkpoint, Restart,
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C H A P T E R 24 Chunk Job Dispatch
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Chapter 24 Chunk Job Dispatch Confi
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Submitting and Controlling Chunk Jo
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Chapter 24 Chunk Job Dispatch Fairs
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C H A P T E R Ë 25 Job Arrays LSF
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Chapter 25 Job Arrays Maximum size
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Redirecting Standard Input and Outp
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Chapter 25 Job Arrays Job Array Dep
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Chapter 25 Job Arrays Specific job
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Requeuing a Job Array Chapter 25 Jo
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P A R T V Controlling Job Execution
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About Resource Usage Limits About R
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Specifying Resource Usage Limits Sp
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Specifying Resource Usage Limits If
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Supported Resource Usage Limits and
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CPU Time and Run Time Normalization
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Automatic Job Suspension Automatic
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Suspending Conditions Suspending Co
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Suspending Conditions Viewing suspe
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About Pre-Execution and Post-Execut
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Configuring Pre- and Post-Execution
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Configuring Pre- and Post-Execution
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About Job Starters About Job Starte
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Command-Level Job Starters Command-
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Queue-Level Job Starters Queue-Leve
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Controlling Execution Environment U
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Understanding External Executables
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Using esub Option LSB_SUB_EXCEPTION
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Using esub General esub logic Rejec
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Using esub # Deny userC the ability
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Working with eexec Working with eex
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Default Job Control Actions Default
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Configuring Job Control Actions Con
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Configuring Job Control Actions Exa
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Customizing Cross-Platform Signal C
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C H A P T E R 32 Interactive Jobs w
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Chapter 32 Interactive Jobs with bs
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Interactive Batch Job Messaging Lim
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Running X Applications with bsub Ch
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C H A P T E R 33 Running Interactiv
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Chapter 33 Running Interactive and
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Interactive Tasks Chapter 33 Runnin
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P A R T VII Running Parallel Jobs C
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How LSF Runs Parallel Jobs How LSF
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Submitting Parallel Jobs Submitting
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Submitting MPI Jobs Submitting MPI
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Starting Parallel Tasks with LSF Ut
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Specifying a Minimum and Maximum Nu
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Specifying a Mandatory First Execut
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Controlling Processor Allocation Ac
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Running Parallel Processes on Homog
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Page 458 and 459: Parallel Fairshare Parallel Fairsha
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Page 462 and 463: About Advance Reservation About Adv
Page 464 and 465: Configuring Advance Reservation ◆
Page 466 and 467: Using Advance Reservation Adding a
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Page 472 and 473: Using Advance Reservation Modifying
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Page 477 and 478: C H A P T E R 36 Event Generation C
Page 479 and 480: Chapter 36 Event Generation Events
Page 481 and 482: C H A P T E R 37 Tuning the Cluster
Page 483 and 484: Adjusting LIM Parameters RUNWINDOW
Page 485 and 486: Chapter 37 Tuning the Cluster Compa
Page 487 and 488: Changing Default LIM Behavior to Im
Page 489 and 490: Chapter 37 Tuning the Cluster Whene
Page 491 and 492: Tuning mbatchd on UNIX Operating sy
Page 493 and 494: C H A P T E R 38 Authentication Con
Page 495: Chapter 38 Authentication eauth -c
Page 499 and 500: Chapter 38 Authentication Correctin
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Page 503 and 504: User Account Mapping Chapter 38 Aut
Page 505 and 506: C H A P T E R 39 Job Email, and Job
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Page 519 and 520: C H A P T E R 41 Error and Event Lo
Page 521 and 522: Chapter 41 Error and Event Logging
Page 523 and 524: System Event Log CAUTION Chapter 41
Page 525 and 526: Chapter 41 Error and Event Logging
Page 527 and 528: C H A P T E R 42 Troubleshooting an
Page 529 and 530: Common LSF Problems LIM dies quietl
Page 531 and 532: Chapter 42 Troubleshooting and Erro
Page 543 and 544: Setting Daemon Timing Levels Chapte
Page 545: P A R T IX LSF Utilities Contents
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About lstcsh About lstcsh The lstcs
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Local and Remote Modes Local and Re
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Differences from Other Shells Diffe
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Starting lstcsh Starting lstcsh Sta
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Host Redirection Host Redirection E
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Built-in Commands Built-in Commands
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Writing Shell Scripts in lstcsh Wri
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Index job migration 321 job requeue
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Index D daemons authd 496 authentic
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Index file spooling. See command fi
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Index Internet addresses, matching
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Index host locked 279 interactive j
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Index pre-42 UNIX directory structu
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Index disabling 317 job-level 317 q
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Index associating with hosts 155 Bo
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Index status closed in bhosts 70 jo
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Index 580 Administering Platform LS
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