PREROOTEFFORT
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Description
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Dial for the work spent during the Pre-root parallel heuristic phase. A positive value sets a suitable work limit that is dependent on problem-characteristics. Changing the value up/or down dials the work spent in this phase up or down. This control also enables/disables Pre-root parallel heuristics.
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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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-1
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Note
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The special value of
-2 does not use a phase-specific work limit at all. Make sure to use other limits to stop the Pre-root parallel phase eventually.
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Note
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If a
WORKLIMIT on the overall solution process has been set, it also applies during the pre-root parallel phase.
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Note
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This control always sets a work limit that depends on the characteristics of the presolved problem. If you prefer to set an absolute work limit instead, consider the control
PREROOTWORKLIMIT.
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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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