XPRSloadsecurevecs
XPRSloadsecurevecs |
Purpose
Allows the user to mark rows and columns in order to prevent the
presolve removing these rows and columns from the matrix.
Synopsis
int XPRS_CC XPRSloadsecurevecs(XPRSprob prob, int nr, int nc, const int mrow[], const int mcol[]);
Arguments
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prob
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The current problem.
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nr
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Number of rows to be marked.
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nc
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Number of columns to be marked.
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mrow
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Integer array of length
nr containing the rows to be marked. May be
NULL if not required.
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mcol
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Integer array of length
nc containing the columns to be marked. May be
NULL if not required.
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Example
This sets the first six rows and the first four columns to not be removed during presolve.
int mrow[] = {0,1,2,3,4,5};
int mcol[] = {0,1,2,3};
...
XPRSreadprob(prob,"myprob","");
XPRSloadsecurevecs(prob,6,4,mrow,mcol);
XPRSmipoptimize(prob,"");
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