Administering Platform LSF - SAS

Enabling Periodic Checkpointing
At job submission
After job
submission
Chapter 23
Job Checkpoint, Restart, and Migration
Periodic checkpointing involves creating a checkpoint file at regular time
intervals during the execution of your job. LSF provides the ability to enable
periodic checkpointing manually on the command line and automatically
through configuration. Automatic periodic checkpointing is discussed in
“Automatically Checkpointing Jobs” on page 318. LSF can only perform a
checkpoint for checkpointable jobs as described in “Making Jobs
Checkpointable” on page 315.
Manually enabling periodic checkpointing involves specifying a checkpoint
period in minutes.
LSF uses the -k "checkpoint_dir checkpoint_period" option of bsub to
enable periodic checkpointing at job submission. For example, to periodically
checkpoint my_job every 2 hours (120 minutes):
% bsub -k "my_dir 120" my_job
Job is submitted to default queue .
LSF uses the -p period option of bchkpnt to enable periodic checkpointing
after submission. When a checkpoint period is specified after submission, LSF
checkpoints the job immediately then checkpoints it again after the specified
period of time. For example, to periodically checkpoint a job with job ID 123
every 2 hours (120 minutes):
% bchkpnt -p 120 123
Job is being checkpointed
You can also use the -p option of bchkpnt to change a checkpoint period. For
example, to change the checkpoint period of a job with job ID 123 to every 4
hours (240 minutes):
% bchkpnt -p 240 123
Job is being checkpointed
Disabling periodic checkpointing
To disable periodic checkpointing, specify a period of 0 (zero). For example,
to disable periodic checkpointing for a job with job ID 123:
% bchkpnt -p 0 123
Job is being checkpointed
Administering Platform LSF 317