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[Help-glpk] Problem : basis
From: |
Cedric[FR] |
Subject: |
[Help-glpk] Problem : basis |
Date: |
Thu, 7 Jun 2007 13:44:41 +0400 |
Hi,
I tested my example of column generation without the routine lpx_std_basis
Now, the result is good:
0: objval = 0.000000000e+00 infeas = 1.000000000e+00 (0)
15: objval = 3.497400000e+04 infeas = 0.000000000e+00 (0)
* 15: objval = 3.497400000e+04 infeas = 0.000000000e+00 (0)
* 29: objval = 2.652371454e+02 infeas = 0.000000000e+00 (0)
OPTIMAL SOLUTION FOUND
* 29: objval = 2.652371454e+02 infeas = 0.000000000e+00 (0)
* 31: objval = 6.586143114e+01 infeas = 0.000000000e+00 (0)
OPTIMAL SOLUTION FOUND
But, At the 55 st problem, I obtain:
spx_simplex: initial basis is invalid
Why? Normally, the precedent solution is feasible
I don't understand spx_simplex because I don't use. How do I repear the
problem?
when the lpx_simplex is different of LPX_E_OK
thanks
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- [Help-glpk] Problem : basis,
Cedric[FR] <=