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cplexAPI (version 1.4.0)

presolveCPLEX: Perform Presolve

Description

Low level interface function to the IBM ILOG CPLEX function CPXpresolve. Consult the IBM ILOG CPLEX documentation for more detailed information.

Usage

presolveCPLEX(env, lp, method)

Arguments

env

An object of class "'>cplexPtr" as returned by openEnvCPLEX. This is basically a pointer to an IBM ILOG CPLEX environment.

lp

An object of class "'>cplexPtr" as returned by initProbCPLEX. This is basically a pointer to an IBM ILOG CPLEX problem object.

method

A single integer value specifying the optimization algorithm to be used to solve the problem after the presolve is completed.

Value

Zero if successful, otherwise nonzero.

Details

Interface to the C function presolve which calls the CPLEX function CPXpresolve.

References

The IBM ILOG CPLEX home page at https://www.ibm.com/support/knowledgecenter/SSSA5P.

See Also

cplexConstants section “LP/QP solution algorithms”.