An Overview of
Berkeley Lab’s
Linux Checkpoint/Restart
(BLCR)
Paul Hargrove with Jason Duell and Eric Roman
January 13th, 2004
(Based on slides by Jason Duell)
PPT 共计12页
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http://ftg.lbl.gov/checkpoint
checkpoint@lbl.gov
An Overview of
Berkeley Lab’s
Linux Checkpoint/Restart
(BLCR)
Paul Hargrove with Jason Duell and Eric Roman
January 13
th
, 2004
(Based on slides by Jason Duell)
http://ftg.lbl.gov/checkpoint
checkpoint@lbl.gov
Linux checkpoint/restart
Outline
Project goals
System design
Entension interface
Current status
Future work
http://ftg.lbl.gov/checkpoint
checkpoint@lbl.gov
Uses of Checkpoint/Restart
Gang scheduling
●
No queue drain for maintenance, policy change
●
Higher utilization and/or more flexible scheduling
Process migration
●
Save job if node failure imminent
●
Pack jobs for optimal network performance
Periodic backup
●
Not our main focus
●
Application can always do more efficiently
●
But may be useful for systems with long jobs, fast I/O,
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