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Re: Regression between 4.61 and 4.65 for problems which can be preproces


From: Chris Matrakidis
Subject: Re: Regression between 4.61 and 4.65 for problems which can be preprocessed to almost nothing
Date: Tue, 14 Jul 2020 00:00:33 +0300

On Mon, 13 Jul 2020 at 19:32, Domingo Alvarez Duarte <mingodad@gmail.com> wrote:
-      if (mip->m == 0 && mip->n == 0)
+      if (mip->m == 0 || mip->n == 0)

This is not a correct change, if m==0 && n>0 then the problem is unbounded. Checking only if n=0 seems to do what is needed here, However a deeper look is needed to figure out if there are any implications.

Best Regards,

Chris Matrakidis

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