Group: sci.op-research
From: caokeguan@126.com
Date: Thursday, March 06, 2008 1:59 AM
Subject: Re: cplex problem about out of memory


> 1 GB is apparently not sufficient. One can solve with close to 4GB on
> Linux 32-bit systems, maybe 2 or 3 GB with XP. For more you will need
> a 64-bit system.
> HOWEVER, since you are solving a MIP the tree could get too big. If
> that really is the case you would write it do disk.- =D2=FE=B2=D8=B1=BB=D2=
=FD=D3=C3=CE=C4=D7=D6 -
>
> - =CF=D4=CA=BE=D2=FD=D3=C3=B5=C4=CE=C4=D7=D6 -

cplex.setParam(IloCplex::NodeFileInd,3);
the sentence above I think I have written some buffer files into my
hard disk. I'm new at the use of cplex, do you please show me more
suggestions? the information about my model is: presolve eliminated
more than 900 rows and 500 columns, do you agree that the scale is
large enough??