Originally posted by: SystemAdmin

[ArushGadkar said:]

Hello,
I havea cplex code which gives me a error message as follows:

Elapsed time = 5405.00 sec. (tree size = 1091.66 MB)
Nodefile size = 964.47 MB (246.09 MB after compression)
985100 939016      19.8800  249      12.0000      64.0000 24902197  433.33%
          id184 D 985099    212
985200 939110      46.4318  254      12.0000      64.0000 24909466  433.33%
          id953 D 985199    104
985300 939210      24.7457  202      12.0000      64.0000 24912317  433.33%
          id743 D 985299    198
985400 939304      41.2941  223      12.0000      64.0000 24914988  433.33%
          id825 U 985399    103
985500 939403      14.9488  104      12.0000      64.0000 24915802  433.33%
          id727 D 985499    203
985600 939491      34.0701  147      12.0000      64.0000 24917512  433.33%
            id61 D 985599    131

GUB cover cuts applied:  18
Clique cuts applied:  70
Cover cuts applied:  146
Implied bound cuts applied:  4281
Mixed integer rounding cuts applied:  2
Gomory fractional cuts applied: 64
[b]ERROR: memory usage.[/b]

Could someone guide me how to overcome this problem
Thanks
Arush Gadkar.
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

[aroso said:]

Try setting the MemoryEmphasis parameter to 1. Be advised though, that while this will probably help reduce memory problems, it may reduce performance as well.

Antonio
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

[ArushGadkar said:]

how do i set this parameter  to 1 , is there some documentation on how to do it? Also is that the only option to overcome this problem.
Arush
#CPLEXOptimizers
#DecisionOptimization

Originally posted by: SystemAdmin

[aroso said:]

You can set it by using the setParam method in your cplex instance. As an example, in C++, you would use the following:

cplex.setParam(IloCplex::MemoryEmphasis, 1);

You can find more information in the ILOG CPLEX User's Manual provided.

Antonio
#CPLEXOptimizers
#DecisionOptimization