1. Qube
2. _SimpleCMD_QubeWorkerSelection

_SimpleCMD_QubeWorkerSelection

Clusters are a way of distributing jobs across the farm with the ability to expand and shrink based on the submitted priority cluster

Example:

• A job submitted to /root/ will run on all machines with /root/ assigned as a cluster. 

  • At a standard priority

    
    

• A job submitted to /root/a will run on all machines with /root/a assigned as a cluster

  • At a higher priority than /root/ meaning that the job will pre-empt a job with the priority cluster

Host Order is a way of telling the job how to select/order workers

• • "+host.processors.avail" means prefer workers which have more slots available

  • "+host.memory.avail" means prefer workers which have more memory available

  • "+host.memory.total" means prefer workers which have more total memory

  • "+host.processor_speed" means prefer workers with higher cpu speeds

  • "+host.cpus" means prefer workers with higher total cpu slots

Requirements is a way to tell the workers that this job needs specific requirements to be met in order to run

drop-down menu items:

• "winnt" this will fill the field with "host.os=winnt" which means only run on Windows based workers

• "linux" this will fill the field with "host.os=linux" which means only run on Linux based workers

• "osx" this will fill the field with "host.os=osx" which means only run on OSX based workers

The above is not the limit of what "Requirements" can do see a list below of other alterable variants:

• "host.processors.avail.=4" means only run this job on workers that have 4 or more slots available

• "host.processors.used=0" means only run this job on workers with 0 slots in use

• "host.memory.avail=400" means only run this job on workers that have 400 memory available

Reservations is a way to tell the workers that this job will reserve the specific resources for this job

Menu items:

• "host.processors" this will fill the field with "host.processors=X" which means reserve X slots on the worker while running this job

• "host.memory" this will fill the field with "host.memory=X" which means only reserve X memory on the worker while running this job

The above is not the limit of what "Reservations" can do see a list below of other alterable variants:

• "host.license.nuke=1" when a Global Resources entry has been made you can reserve any arbitrary named item.
  
  See also Job Reservations

Restrictions is a way to tell the workers that this job can only run on specific clusters

Example:

• submit a job that will run only in /farm:

  "qbsub -cluster /root -restriction /root"

  
  

• submit a job that will prefer to run in /farm/nuke, but could run in any host in /farm or in the first level below /farm

  "qbsub -cluster /root/a -restriction '/root or /root/*'"

  


• submit a job that will prefer to run in /farm/nuke/workstations, but could run in any host at any level at /farm or below

  "qbsub -cluster /root/a/workstations -restriction '/root or /root/+' hostname"