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Question:
How the queuing system of MOSIX works
Answer:
In a MOSIX grid, each cluster has its own queue and this queue is shared
by all the users of that cluster.
The number of jobs that can be placed in the queue is limited by the
number of Linux processes (about 30000 for all users). To queue a
larger number of jobs, there is an option to run multiple command-lines
from a file, each with its own arguments. This option is commonly used
to run the same program with many different sets of arguments.
Another option allows to set an upper limit on the number of
simultaneous jobs that are allowed to run. This option combines well
with the queuing system which run jobs based on the availability of
grid/cluster resources.
There is an argument to inform the queuing system that the job may
split into a number of parallel processes, so that more resources
are reserved for it. Another argument allows bundling for easy
identification of several instances of a job by a single job-ID.
Jobs can also be handled as a group and be killed collectively.