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From: cees <tstra...@gmail.com>
Date: Wed, 30 Apr 2008 04:00:30 -0700 (PDT)
Local: Wed 30 Apr 2008 12:00
Subject: Re: How to delete constraints and variables?!
Generally spoken: How do I delete already declared variables and free
related memory? How can I provide a garbage collection manually? On 28 Apr., 22:25, cees <tstra...@gmail.com> wrote:
> Hi! My optimization model is extended stepwise, that is, it is set-up
> and solved for a specific planning horizon and extended afterwards to > cover more periods. This is done to simulate a rolling horizon > environment. Therefore, in each simultion run the optimization model > is extended with new constraints and variables. Only in under special > circumstance some already inialized constraints in variable are > superfluous. I would like to delete these not needed constraints and > variables, because for large simulation instances the model exceeds > the available RAM of my computer and Xpress terminates. There are a > lot of not needed constraints, because preprocessing always reduces > the problem size strongly. > How do I delete constraints and variables? Does a corresponding
> Thanks a lot! You must Sign in before you can post messages.
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