Administering Platform LSF - SAS

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

Dynamic User Priority Default dynamic priority formula number_shares cpu_time run_time job_slots By default, LSF calculates dynamic priority according to the following formula: dynamic priority = number_shares / (cpu_time * CPU_TIME_FACTOR + run_time * RUN_TIME_FACTOR + (1 + job_slots) * RUN_JOB_FACTOR) The maximum value of dynamic user priority is 100 times the number of user shares (if the denominator in the calculation is less than 0.01, LSF rounds up to 0.01). For cpu_time, run_time, and job_slots, LSF uses the total resource consumption of all the jobs in the queue or host partition that belong to the user or group. The number of shares assigned to the user. The cumulative CPU time used by the user (measured in hours). LSF calculates the cumulative CPU time using the actual (not normalized) CPU time and a decay factor such that 1 hour of recently-used CPU time decays to 0.1 hours after an interval of time specified by HIST_HOURS in lsb.params (5 hours by default). The total run time of running jobs (measured in hours). The number of job slots reserved and in use. Configuring the default dynamic priority CPU_TIME_FACTOR RUN_TIME_FACTOR RUN_JOB_FACTOR You can give additional weight to the various factors in the priority calculation by setting the following parameters in lsb.params. ◆ CPU_TIME_FACTOR ◆ RUN_TIME_FACTOR ◆ RUN_JOB_FACTOR ◆ HIST_HOURS If you modify the parameters used in the dynamic priority formula, it affects every fairshare policy in the cluster. The CPU time weighting factor. Default: 0.7 The run time weighting factor. Default: 0.7 The job slots weighting factor. Default: 3 206 Administering Platform LSF
How Fairshare Affects Job Dispatch Order Chapter 14 Fairshare Scheduling Within a queue, jobs are dispatched according to the queue’s scheduling policy. ◆ For FCFS queues, the dispatch order depends on the order of jobs in the queue (which depends on job priority and submission time, and can also be modified by the job owner). ◆ For fairshare queues, the dispatch order depends on dynamic share priority, then order of jobs in the queue (which is not necessarily the order in which they are submitted to the queue). A user’s priority gets higher when they use less than their fair share of the cluster’s resources. When a user has the highest priority, LSF considers one of their jobs first, even if other users are ahead of them in the queue. If there are only one user’s jobs pending, and you do not use hierarchical fairshare, then there is no resource contention between users, so the fairshare policies have no effect and jobs are dispatched as usual. Job dispatch order among queues of equivalent priority Example The order of dispatch depends on the order of the queues in the queue configuration file. The first queue in the list is the first to be scheduled. Jobs in a fairshare queue are always considered as a group, so the scheduler attempts to place all jobs in the queue before beginning to schedule the next queue. Jobs in an FCFS queue are always scheduled along with jobs from other FCFS queues of the same priority (as if all the jobs belonged to the same queue). In a cluster, queues A, B, and C are configured in that order and have equal queue priority. Jobs with equal job priority are submitted to each queue in this order: C B A B A. ◆ If all queues are FCFS queues, order of dispatch is C B A B A (queue A is first; queues B and C are the same priority as A; all jobs are scheduled in FCFS order). ◆ If all queues are fairshare queues, order of dispatch is AA BB C (queue A is first; all jobs in the queue are scheduled; then queue B, then C). ◆ If A and C are fairshare, and B is FCFS, order of dispatch is AA B B C (queue A jobs are scheduled according to user priority; then queue B jobs are scheduled in FCFS order; then queue C jobs are scheduled according to user priority) ◆ If A and C are FCFS, and B is fairshare, order of dispatch is C A A BB (queue A is first; queue A and C jobs are scheduled in FCFS order, then queue B jobs are scheduled according to user priority) ◆ If any of these queues uses cross-queue fairshare, the other queues must also use cross-queue fairshare and belong to the same set, or they cannot have the same queue priority. For more information, see “Cross-queue Fairshare” on page 211. Administering Platform LSF 207
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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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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
Page 194 and 195: Order String Order String Syntax De
Page 196 and 197: Usage String Example rusage[mem=50:
Page 198 and 199: Span String Span String Syntax A sp
Page 200 and 201: Same String 200 Administering Platf
Page 202 and 203: About Fairshare Scheduling About Fa
Page 204 and 205: User Share Assignments Examples ◆
Page 208 and 209: Host Partition Fairshare Host Parti
Page 210 and 211: Queue-Level User-based Fairshare Qu
Page 212 and 213: Cross-queue Fairshare bqueues -l al
Page 214 and 215: Cross-queue Fairshare 3 In all the
Page 216 and 217: Hierarchical Fairshare Viewing hier
Page 218 and 219: Queue-based Fairshare Queue-based F
Page 220 and 221: Configuring Slot Allocation per Que
Page 222 and 223: Viewing Queue-based Fairshare Alloc
Page 224 and 225: Typical Slot Allocation Scenarios T
Page 226 and 227: Typical Slot Allocation Scenarios W
Page 228 and 229: Typical Slot Allocation Scenarios T
Page 230 and 231: Using Historical and Committed Run
Page 232 and 233: Using Historical and Committed Run
Page 234 and 235: Users Affected by Multiple Fairshar
Page 236 and 237: Ways to Configure Fairshare Ways to
Page 238 and 239: Ways to Configure Fairshare Example
Page 240 and 241: Using Goal-Oriented SLA Scheduling
Page 242 and 243: Using Goal-Oriented SLA Scheduling
Page 244 and 245: Configuring Service Classes for SLA
Page 246 and 247: Viewing Information about SLAs and
Page 248 and 249: Viewing Information about SLAs and
Page 250 and 251: 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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