Earliest Deadline First

From Unofficial BOINC Wiki

Contents 1 General 2 Version Information 3 Synonyms 4 Related Messages 4.1 Work Scheduler Messages (General) 4.2 "Trigger" Messages 4.3 Work Fetch Policy Messages 4.4 Work Schedule Policy Messages 5 Also See

[edit] General

The Earliest Deadline First Work Scheduler mode is used to ensure that Deadlines for work are met. That each CPU is assigned the Work Unit with the earliest deadline that is not already being processed by another CPU.

If a Host is in Earliest Deadline First one of the following triggers is true:

• Computer is over committed,
• Less than 1 day until deadline, or
• Deadline is before reconnect time.

[edit] Version Information

Earliest Deadline First mode is deprecated in BOINC Versions 5.6.0 and later.

[edit] Synonyms

• "Panic" Mode

[edit] Related Messages

[edit] Work Scheduler Messages (General)

• request_reschedule_cpus: exit_tasks
• request_reschedule_cpus: files downloaded
• request_reschedule_cpus: process exited
• request_reschedule_cpus: project op
• request_reschedule_cpus: Resuming activities
• request_reschedule_cpus: start failed
• schedule_cpus: time '(x.y)'

[edit] "Trigger" Messages

• Computer is over committed
• Less than 1 day until deadline
• Deadline is before reconnect time

[edit] Work Fetch Policy Messages

• Allowing work fetch again.
• Suspending work fetch because computer is overcommitted.

[edit] Work Schedule Policy Messages

• Resuming round-robin CPU scheduling.
• Using earliest-deadline-first scheduling because computer is overcommitted.

[edit] Also See

• New Work Scheduler policy: earliest deadline first.
• New Work Scheduler policy: highest debt first.
• Work Scheduler