[Coin-lpsolver] CglLandP and CLpSimplex:pivot()

[Menal Guzelsoy]

John,

Thanks for the quick fix. It runs fine now.

Menal.


Quoting John J Forrest <jjforre at us.ibm.com>:

> I notice that branches/devel assert is .. <1.0e-6||CoinAbs(solveType_)==2
>
> Changed trunk to that - does it help?
>
> John Forrest
>
>
>
>              Menal Guzelsoy
>              <mguzelsoy at lehigh
>              .edu>                                                      To
>              Sent by:                  coin-lpsolver at list.coin-or.org
>              coin-lpsolver-bou                                          cc
>              nces at list.coin-or
>              .org                                                  Subject
>                                        [Coin-lpsolver] CglLandP and
>                                        CLpSimplex:pivot()
>              04/24/07 11:08 PM
>
>
>
>
>
>
>
>
>
> Hi,
>
> I have been doing some testing with the new CglLandP generator and for
> some instances I
> am getting the following error:
>
>   ../../../Clp/src/ClpSimplex.cpp:6616: int ClpSimplex::pivot(): Assertion
> `fabs(dj_[sequenceIn_])<1.0e-6' failed.
> Aborted
>
> It seems that ClpSimplex refuses to pivot on the element chosen by
> CglLandP because of different tolerance values used in each project.
> On the other hand,
> CglLandP fails to detect it due to termination. If needed, I can also
> send a simple cutting plane alg. implementation to illustrate the
> problem.
>
> Thanks,
>
> Menal.
>
>
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