[Scip] why my SCIP cannot work with CPLEX?

Stefan Vigerske stefan at math.hu-berlin.de
Thu Apr 3 16:28:26 CEST 2014


Hi,

CPLEX error 32201 indicates that CPLEX is not able to connect to its 
license server:
http://www-01.ibm.com/support/docview.wss?uid=swg21400025

As you seem to build against CPLEX 12.5, you might want to check that 
your SCIP binary also uses the CPLEX 12.5 libs. Maybe you have older 
CPLEX libs installed that are picked up of the SCIP binary? Adjusting 
the PATH environment variable may help in this case.

Stefan

On 04/03/2014 04:19 PM, Xiangyong Li wrote:
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>   Dear all,
>
> I have successfully installed SCIP with CPLEX 12.5.1 being LP solver under Windows. During the installation, only some warnings came out.
> But when I run SCIP.exe to solve an instance, some errors came out:
> SCIP version 3.1.0 [precision: 8 byte] [memory: block] [mode: optimized] [LP solver: CPLEX 12.5.1.0] [GitHash: 577ee45]
>
> Copyright (c) 2002-2014 Konrad-Zuse-Zentrum fuer Informationstechnik Berlin (ZIB)
>
>
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> External codes:
>
>    CPLEX 12.5.1.0       Linear Programming Solver developed by IBM (www.cplex.com)
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>    cppad-20140000.1     Algorithmic Differentiation of C++ algorithms developed by B. Bell (www.coin-or.org/CppAD)
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>
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> user parameter file <scip.set> not found - using default parameters
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> SCIP> read mygrlpmodel2.lp
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> read problem <mygrlpmodel2.lp>
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> ============
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> original problem has 38 variables (38 bin, 0 int, 0 impl, 0 cont) and 66 constraints
>
> SCIP> optimize
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> WARNING: LP Error: CPLEX returned 32201
>
> [src/scip/lp.c:8565] ERROR: Error <-6> in function call
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> [src/scip/scip.c:11988] ERROR: Error <-6> in function call
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> [src/scip/scip.c:13406] ERROR: Error <-6> in function call
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> [src/scip/scip.c:13606] ERROR: Error <-6> in function call
>
> [src/scip/dialog_default.c:1466] ERROR: Error <-6> in function call
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> [src/scip/dialog.c:828] ERROR: Error <-6> in function call
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> [src/scip/dialog.c:370] ERROR: Error <-6> in function call
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> [src/scip/scip.c:8393] ERROR: Error <-6> in function call
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> [src/scip/scipshell.c:289] ERROR: Error <-6> in function call
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> [src/scip/scipshell.c:332] ERROR: Error <-6> in function call
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> SCIP Error (-6): error in LP solver
>
> Thanks,
>
> Xiangyong Li
>
>
>
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