CPXXgetsubmethod and CPXgetsubmethod
The routine CPXXgetsubmethod/CPXgetsubmethod accesses the solution
method of the last subproblem optimization, in the case of an error
termination during mixed integer optimization.
int CPXXgetsubmethod( CPXCENVptr env, CPXCLPptr lp )
int CPXgetsubmethod( CPXCENVptr env, CPXCLPptr lp )
Description
The routine CPXXgetsubmethod/CPXgetsubmethod accesses the solution
method of the last subproblem optimization, in the case of an error
termination during mixed integer optimization.
Arguments
- env
-
A pointer to the CPLEX environment as returned by
CPXXopenCPLEX/CPXopenCPLEX. - lp
-
A pointer to a CPLEX problem object as returned by
CPXXcreateprob/CPXcreateprob.
Return
The possible return values are summarized here.Example
submethod = CPXgetsubmethod (env, lp);
| Value | Symbolic Constant | Algorithm |
| -1 | CPX_ALG_NONE |
None |
| 1 | CPX_ALG_PRIMAL |
Primal simplex |
| 2 | CPX_ALG_DUAL |
Dual simplex |
| 4 | CPX_ALG_BARRIER |
Barrier optimizer (no crossover) |