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cplexAPI (version 1.4.0)

getNumNnzCPLEX: Access the Number of Nonzero Elements in the Constraint Matrix

Description

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

Usage

getNumNnzCPLEX(env, lp)

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.

Value

Zero if the problem object or environment does not exist, otherwise the number of nonzero elements.

Details

Interface to the C function getNumNnz which calls the CPLEX function CPXgetnumnz.

References

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