Administering Platform LSF - SAS

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

Load Indices Load Indices Load indices are built-in resources that measure the availability of dynamic, non-shared resources on hosts in the LSF cluster. Load indices built into the LIM are updated at fixed time intervals. External load indices are defined and configured by the LSF administrator. An External Load Information Manager (ELIM) program collects the values of site-defined external load indices and updates LIM when new values are received. Load indices collected by LIM . Index Measures Units Direction Averaged over Update Interval status host status string 15 seconds r15s run queue length processes increasing 15 seconds 15 seconds r1m run queue length processes increasing 1 minute 15 seconds r15m run queue length processes increasing 15 minutes 15 seconds ut CPU utilization percent increasing 1 minute 15 seconds pg paging activity pages in + pages out increasing 1 minute 15 seconds per second ls logins users increasing N/A 30 seconds it idle time minutes decreasing N/A 30 seconds swp available swap space MB decreasing N/A 15 seconds mem available memory MB decreasing N/A 15 seconds tmp available space in temporary MB decreasing N/A 120 seconds file system io disk I/O (shown by lsload -l) KB per second increasing 1 minute 15 seconds name external load index configured by LSF administrator site-defined Status The status index is a string indicating the current status of the host. This status applies to the LIM and RES. The possible values for status are: Status ok -ok busy lockW lockU Description The host is available to accept remote jobs. The LIM can select the host for remote execution. When the status of a host is preceded by a dash (-), it means LIM is available but RES is not running on that host or is not responding. The host is overloaded (busy) because a load index exceeded a configured threshold. An asterisk (*) marks the offending index. LIM will not select the host for interactive jobs. The host is locked by its run window. Use lshosts to display run windows. The host is locked by an LSF administrator or root. 144 Administering Platform LSF
Chapter 8 Understanding Resources Status unavail unlicensed Description The host is down or the LIM on the host is not running or is not responding. The host does not have a valid license. CPU run queue lengths (r15s, r1m, r15m) The r15s, r1m and r15m load indices are the 15-second, 1-minute and 15- minute average CPU run queue lengths. This is the average number of processes ready to use the CPU during the given interval. On UNIX, run queue length indices are not necessarily the same as the load averages printed by the uptime(1) command; uptime load averages on some platforms also include processes that are in short-term wait states (such as paging or disk I/O). Effective run queue length Normalized run queue length On multiprocessor systems, more than one process can execute at a time. LSF scales the run queue value on multiprocessor systems to make the CPU load of uniprocessors and multiprocessors comparable. The scaled value is called the effective run queue length. Use lsload -E to view the effective run queue length. LSF also adjusts the CPU run queue based on the relative speeds of the processors (the CPU factor). The normalized run queue length is adjusted for both number of processors and CPU speed. The host with the lowest normalized run queue length will run a CPU-intensive job the fastest. Use lsload -N to view the normalized CPU run queue lengths. CPU utilization (ut) Paging rate (pg) Login sessions (ls) The ut index measures CPU utilization, which is the percentage of time spent running system and user code. A host with no process running has a ut value of 0 percent; a host on which the CPU is completely loaded has a ut of 100 percent. The pg index gives the virtual memory paging rate in pages per second. This index is closely tied to the amount of available RAM memory and the total size of the processes running on a host; if there is not enough RAM to satisfy all processes, the paging rate will be high. Paging rate is a good measure of how a machine will respond to interactive use; a machine that is paging heavily feels very slow. The ls index gives the number of users logged in. Each user is counted once, no matter how many times they have logged into the host. Administering Platform LSF 145
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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
Page 94 and 95: Tuning CPU Factors Tuning CPU Facto
Page 96 and 97: Handling Host-level Job Exceptions
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Page 100 and 101: Queue States Queue States Queue sta
Page 102 and 103: Viewing Queue Information SCHEDULIN
Page 104 and 105: Controlling Queues Controlling Queu
Page 106 and 107: Controlling Queues Dispatch Windows
Page 108 and 109: Managing Queues Managing Queues Res
Page 110 and 111: Handling Job Exceptions Configuring
Page 112 and 113: Job States Job States The bjobs com
Page 114 and 115: Job States Viewing wait status and
Page 116 and 117: Viewing Job Information Viewing exc
Page 118 and 119: Switching Jobs from One Queue to An
Page 120 and 121: Suspending and Resuming Jobs Suspen
Page 122 and 123: Sending a Signal to a Job Sending a
Page 124 and 125: Using Job Groups Creating a job gro
Page 126 and 127: Using Job Groups % bhist -l 105 You
Page 128 and 129: Viewing User and User Group Informa
Page 130 and 131: About User Groups About User Groups
Page 132 and 133: LSF User Groups LSF User Groups You
Page 134 and 135: LSF User Groups 134 Administering P
Page 137 and 138: C H A P T E R 8 Understanding Resou
Page 139 and 140: Chapter 8 Understanding Resources T
Page 141 and 142: Chapter 8 Understanding Resources S
Page 143: How LSF Uses Resources Viewing job
Page 147 and 148: Chapter 8 Understanding Resources V
Page 149 and 150: Chapter 8 Understanding Resources A
Page 151 and 152: C H A P T E R 9 Adding Resources Co
Page 153 and 154: Adding New Resources to Your Cluste
Page 155 and 156: Chapter 9 Adding Resources Configur
Page 157 and 158: Static Shared Resource Reservation
Page 159 and 160: Chapter 9 Adding Resources Configur
Page 161 and 162: Chapter 9 Adding Resources ELIM res
Page 163 and 164: Modifying a Built-In Load Index Con
Page 165: P A R T III Scheduling Policies Con
Page 168 and 169: Specifying Time Values Specifying T
Page 170 and 171: Specifying Time Expressions Specify
Page 172 and 173: Automatic Time-based Configuration
Page 174 and 175: Deadline Constraint Scheduling Dead
Page 176 and 177: Exclusive Scheduling 176 Administer
Page 178 and 179: About Preemptive Scheduling About P
Page 180 and 181: How Preemptive Scheduling Works Job
Page 182 and 183: Configuring Preemptive Scheduling Q
Page 184 and 185: Configuring Preemptive Scheduling 1
Page 186 and 187: About Resource Requirements About R
Page 188 and 189: Queue-Level Resource Requirements V
Page 190 and 191: About Resource Requirement Strings
Page 192 and 193: 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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Using LSF Make to Run Parallel Jobs
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Limiting the Number of Processors A
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Reserving Processors Reserving Proc
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Reserving Memory for Pending Parall
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Allowing Jobs to Use Reserved Job S
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Allowing Jobs to Use Reserved Job S
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Parallel Fairshare Parallel Fairsha
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Optimized Preemption of Parallel Jo
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About Advance Reservation About Adv
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Configuring Advance Reservation ◆
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Using Advance Reservation Adding a
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Using Advance Reservation Removing
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Using Advance Reservation 6:10 0 10
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Using Advance Reservation Modifying
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Using Advance Reservation 474 Admin
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C H A P T E R 36 Event Generation C
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Chapter 36 Event Generation Events
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C H A P T E R 37 Tuning the Cluster
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Adjusting LIM Parameters RUNWINDOW
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Chapter 37 Tuning the Cluster Compa
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Changing Default LIM Behavior to Im
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Chapter 37 Tuning the Cluster Whene
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Tuning mbatchd on UNIX Operating sy
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C H A P T E R 38 Authentication Con
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Chapter 38 Authentication eauth -c
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Chapter 38 Authentication How LSF d
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Chapter 38 Authentication Correctin
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Chapter 38 Authentication About Dae
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User Account Mapping Chapter 38 Aut
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C H A P T E R 39 Job Email, and Job
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Chapter 39 Job Email, and Job File
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C H A P T E R 40 Non-Shared File Sy
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Chapter 40 Non-Shared File Systems
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Chapter 40 Non-Shared File Systems
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C H A P T E R 41 Error and Event Lo
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Chapter 41 Error and Event Logging
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System Event Log CAUTION Chapter 41
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Chapter 41 Error and Event Logging
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C H A P T E R 42 Troubleshooting an
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Common LSF Problems LIM dies quietl
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Chapter 42 Troubleshooting and Erro
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Setting Daemon Timing Levels Chapte
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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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Administering Platform LSF - SAS

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