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Description
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This specifies the operations which are performed during the presolve.
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Type
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Integer
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Values
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Bit
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Meaning
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0
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Singleton column removal.
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1
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Singleton row removal.
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2
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Forcing row removal.
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3
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Dual reductions.
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4
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Redundant row removal.
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5
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Duplicate column removal.
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6
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Duplicate row removal.
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7
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Strong dual reductions.
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8
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Variable eliminations.
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9
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No IP reductions.
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10
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No semi-continuous variable detection.
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11
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No advanced IP reductions.
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14
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Linearly dependant row removal.
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15
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No integer variable and SOS detection.
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Default value
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511 (bits 0 — 8 incl. are set)
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Affects routines
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See also
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