[Help-glpk] [Fwd: Low performance when solve MIP problem with glp intopt in GLPK]

[Andrew Makhorin]

-------- Forwarded Message --------
From: John <address@hidden>
To: address@hidden
Subject: Low performance when solve MIP problem with glp intopt in GLPK
Date: Thu, 27 Jun 2013 13:36:30 +0800 (CST)

 
 Hello,

It runs over 2hours when solve a MIP problem with 4 rows and 4000
columns. I think it should be completed in several minutes.  Could you
help me to find out the problem or  give some suggestions on how to
improve the performance?

GLPK Version: 4.51
Hardware and Software Information:
Processor: Intel(R) Xeon(R) CPU E7-4850 @ 2.00GHz 2.00 GHz (4
processors)
RAM: 8.00GB
System Type: 64bit Operation System
OS: Windows Server 2008 R2 Standard(Service Pack 1)
Performance Information when running:
CPU Usage: 25%
Memory Usage:150,900K
Page Faults:75,000

Regards,
John