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Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?
From: |
Andrew Makhorin |
Subject: |
Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted? |
Date: |
Mon, 10 Apr 2006 13:35:43 +0400 |
> I run my simulations on a Pentium 1.5Ghz with 512MB RAM. This is how my
> code looks:
>
> /*for loop that assigns values to ne, ia, ja, ar here*/
>
> lpx_load_matrix(lp, ne, ia, ja, ar);
>
> lpx_simplex(lp);
>
> Z = lpx_get_obj_val(lp);
Try to scale the problem and/or enable the lp presolver, i.e. add
the following calls:
lpx_scale_prob(lp);
lpx_set_int_parm(lp, LPX_K_PRESOL, 1);
before call to lpx_simplex.
- [Help-glpk] How to tell if lpx_simplex() needs to be restarted?, leowl, 2006/04/09
- Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?, leowl, 2006/04/10
- Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?, Andrew Makhorin, 2006/04/10
- Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?,
Andrew Makhorin <=
- Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?, leowl, 2006/04/11
- Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?, leowl, 2006/04/11
- Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?, leowl, 2006/04/11
- Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?, leowl, 2006/04/11
- Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?, leowl, 2006/04/11
- Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?, leowl, 2006/04/11
- Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?, leowl, 2006/04/11
- Re: [Help-glpk] How to tell if lpx_simplex() needs to be restarted?, leowl, 2006/04/11