redundant - see https://community.ibm.com/community/user/ai-datascience/discussion/memory-error-through-multiple-optimizations-1#bmf43be8ea-383e-42c2-ad11-5735db12abe7

Slightly more complete version posted at https://community.ibm.com/community/user/ai-datascience/discussion/memory-error-through-multiple-optimizations-1#bmf43be8ea-383e-42c2-ad11-5735db12abe7.

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Paul Rubin
Professor Emeritus
Michigan State University
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Original Message:
Sent: Thu May 25, 2023 06:56 AM
From: Jo
Subject: Memory Error through multiple optimizations

Hello,

 

I am a student and I am currently analyzing an optimization written in Cplex. My plan is to run the optimization through a forloop many times. After each model evaluation everything should be reset, so that the next optimization can be started again, uninfluenced by the previous one. 

 

So in the for-loop some input parameters are changed, then the model is formed and solved with opl.generate and solve. At the end of the for-loop I try to close with opl.end, mod.end and all files in which the solution is written with .close.

 

 

My question is: 

 

how can i document well what happens and so what goes wrong? 

 

how can I clear the memory between optimizations? 

 

alternatively, how can I run multiple optimizations one after the other in an automated way (over 100)?

 

 

 

 

 

Thank you very much for the help!