Platform LSF Administration Guide Version 6.2

Administering Platform LSF
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C HAPTER
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Fairshare Scheduling
To configure any kind of fairshare scheduling, you should understand the following
concepts:
◆ User share assignments
◆ Dynamic share priority
◆ Job dispatch order
You can configure fairshare at either host level or queue level. If you require more
control, you can implement hierarchical fairshare. You can also set some additional
restrictions when you submit a job.
To get ideas about how to use fairshare scheduling to do different things, “Ways to
Configure Fairshare” on page 308.
Contents
◆ Basic Concepts
❖ “Understanding Fairshare Scheduling” on page 276
❖ “User Share Assignments” on page 277
❖ “Dynamic User Priority” on page 279
❖ “How Fairshare Affects Job Dispatch Order” on page 281
◆ User-based Fairshare
❖ “Host Partition User-based Fairshare” on page 282
❖ “Queue-level User-based Fairshare” on page 283
❖ “Cross-queue User-based Fairshare” on page 284
❖ “Hierarchical User-based Fairshare” on page 288
◆ Queue-based Fairshare
❖ “Queue-based Fairshare” on page 291
❖ “Configuring Slot Allocation per Queue” on page 293
❖ “Viewing Queue-based Fairshare Allocations” on page 295
◆ Advanced Topics
❖ “Using Historical and Committed Run Time” on page 303
❖ “Users Affected by Multiple Fairshare Policies” on page 307
❖ “Ways to Configure Fairshare” on page 308