Initializing help system before first use

XSLP_CASCADE

Description
Bit map describing the cascading to be used
Type
Integer
Values
Bit
Meaning
0 
Apply cascading to all variables with determining rows.
1 
Apply cascading to SLP variables which appear in coefficients and which would change by more than XPRS_FEASTOL.
2 
Apply cascading to all SLP variables which appear in coefficients.
3 
Apply cascading to SLP variables which are structural and which would change by more than XPRS_FEASTOL.
4 
Apply cascading to all SLP variables which are structural.
5 
Create secondary order groupping DR rows with instantiated user functions together in the order.
Default value
1
Note
Normal cascading (bit 0) uses determining rows to recalculate the values of variables to be consistent with values already available or already recalculated.
Other bit settings are normally required only in quadratic programming where some of the SLP variables are in the objective function. The values of such variables may need to be corrected if the corresponding update row is slightly infeasible.

The following constants are provided for setting these bits:

Setting bit 0 XSLP_CASCADE_ALL
Setting bit 1 XSLP_CASCADE_COEF_VAR
Setting bit 2 XSLP_CASCADE_ALL_COEF_VAR
Setting bit 3 XSLP_CASCADE_STRUCT_VAR
Setting bit 4 XSLP_CASCADE_ALL_STRUCT_VAR
Setting bit 5 XSLP_CASCADE_SECONDARY_GROUPS

Affects routines
XSLPcascade

Parent Topic Integer control parameters

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