[CHiPPS] Some Problem About Using Blis

Yan Xu Yan.Xu at sas.com
Mon Dec 19 09:57:20 EST 2011


Best first and best estimate strategies will first choose the node that has best possible IP solution to process. It doesn’t necessary to solve the instance quicker, but it may process less nodes than other strategies.

The WARNING message is for internal usage only. During load balancing, ALPS will split a subtree if it too big to fit ino the message buffer. No worry about it.

--yan

From: 化高峰 [mailto:shimuxi at gmail.com]
Sent: Sunday, December 18, 2011 5:25 AM
To: Yan Xu
Cc: chipps at list.coin-or.org; geogrid at gmail.com
Subject: Re: [CHiPPS] Some Problem About Using Blis

 Dear sir,
        But why Blis can`t solve the same problem using best-first or best-estimate, while using depth can?
        Also I have noticed that there are warnings while using best-first or best-estimate like bellow:

        WARNING: Subtree size is larger than message buffer size, will split it

         So does it because the Subtree is too large so causes the one of the process killed?

         I am really appreciate your timely reply!
         Thank you very much!


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