There are several way to control which hosts the supervisor will select when deciding where to start job instances on the farm.
Hosts: Send only to an explicit set of workers
Host Groups: Send only to an explicit pre-defined group of workers
Host Order: Select hosts in a certain preferential order
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Hosts
Qube allows users to specify a list of hosts, for the job to run on. This is a comma-delimited list of hostnames.
Example
% qbsub --hosts "qb001,qb002" command
Omit Hosts
Qube allows users to specify a list of hosts on which the job is restricted from running. This is a comma-delimited list of hostnames. This blacklists the hosts from running on these hosts.
Example
% qbsub --omithosts "qb001,qb002" command
Host Groups
Qube allows the administrator to organize the farm into clusters or host groups. These groups have no hierarchy, and hosts are allowed membership in multiple groups. In order to restrict a job to a specific set of hosts, the user may specify in the 'group' field of the job, which groups they want the job restricted to.
Example
% qbsub --groups "vfx,character" Render my/file.ma
Omit Groups
This is the opposite of the Host Groups option, where the job will restrict itself from running upon any hosts which are contained by the specified groups.
Example
% qbsub --omitgroups "vfx,character" command
Host Order
See Also
supervisor_default_hostorder