Performance enhancements

Job dependency evaluation is used to check whether each job's dependency condition is satisfied. You can improve the performance and scalability of the mbatchd daemon by limiting the amount of time that mbatchd takes to evaluate job dependencies in one scheduling cycle. This limits the amount of time that the job dependency evaluation blocks services and frees up time to perform other services during the scheduling cycle. Previously, you could only limit the maximum number of job dependencies, which only indirectly limited the amount of time spent evaluating job dependencies. Job dependency evaluation is a process that is used to check whether each job's dependency condition is satisfied.

You can now enable LSF to automatically bind LSF daemons to CPU cores by enabling the LSF_INTELLIGENT_CPU_BIND parameter in the lsf.conf file. LSF automatically creates a CPU binding configuration file for each master and master candidate host according to the automatic binding policy.

The new bwait command pauses and waits for the specified job condition to occur before the command returns. End users can use this command to reduce workload on the mbatchd daemon by including bwait in a user script for running jobs instead of using the bjobs command in a tight loop to check the job status. For example, the user script might have a command to submit a job, then run bwait to wait for the first job to be DONE before continuing the script.

The new lsb_wait() API provides the same functionality as the bwait command.