WORKLIMIT
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Description
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The maximum work (measured in work units) that the Optimizer will run before it terminates.
WORK is accumulated during the search and ever increasing. In contrast to
TIME, WORK is independent of the hardware and platform on which the search is conducted. The
WORKLIMIT serves as a deterministic stopping criterion. When it is reached, it leaves the Optimizer in a reproducible state.
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Type
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Double
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Topic areas
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Values
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Default value
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1e+20
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Unit
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work units
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Notes
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The reproducibility of a search conducted under a
WORKLIMIT depends on the chosen determinism of the search, see the control
DETERMINISTIC for more information.
The speed at which work is accumulated depends on the hardware, the algorithms involved, and the problem being solved.
When
WORKLIMIT is set on an objective using
XPRSsetobjdblcontrol, then when the limit is reached the solver will stop the current solve but will continue with solving the next objective. This is in contrast to the behaviour when
WORKLIMIT is set on the problem with
XPRSsetdblcontrol, where the overall optimization will be terminated as soon as the limit is reached.
When a
WORKLIMIT of 0 is set, the solver will stop immediately.
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Affects routines
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See also
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Category
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Control
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