barrier ordering algorithm

Sets the algorithm to be used to permute the rows of the constraint matrix in order to reduce fill in the Cholesky factor.

Purpose

Barrier ordering algorithm

API Parameter Name Name prior to V12.6.0 C CPXPARAM_Barrier_Ordering CPX_PARAM_BARORDER C++ IloCplex::Param::Barrier::Ordering BarOrder (int) Java IloCplex.Param.Barrier.Ordering BarOrder (int) .NET Cplex.Param.Barrier.Ordering BarOrder (int) OPL barorder barorder Python parameters.barrier.ordering barrier.ordering Interactive barrier ordering barrier ordering Identifier 3014 3014

Description

Sets the algorithm to be used to permute the rows of the constraint matrix in order to reduce fill in the Cholesky factor.

Table 1. Values

Value	Meaning
0	Automatic: let CPLEX choose; default
1	Approximate minimum degree (AMD)
2	Approximate minimum fill (AMF)
3	Nested dissection (ND)