Set CurrentMatrixBlockSizes

CurrentMatrixBlockSizes

The predefined parameter CurrentMatrixBlockSizes contains the number of non-zeros for the last mathematical program generated.

Parameter CurrentMatrixBlockSizes {
    IndexDomain  :  (IndexConstraints, IndexVariables);
}

Definition

The parameter CurrentMatrixBlockSizes contains the number of non-zeros for the last mathematical program generated. The parameter counts the non-zeros in all generated rows of a particular symbolic constraint with respect to all generated columns of a particular symbolic variable.

Note

• You can use the parameter CurrentMatrixBlockSizes, for example, to analyze which constraint-variable sub-block of the generated matrix accounts for a number of non-zeros in a mathematical program that appears to be unnaturally high.

• The parameters CurrentMatrixRowCount, CurrentMatrixColumnCount and CurrentMatrixBlockSizes are only set when the AIMMS option Solvers General - Matrix Generation - Matrix_Block_Sizes is set to on.

See also

The sets CurrentMatrixColumnCount, CurrentMatrixRowCount.