[Help-glpk] [Fwd: Error - negative iteration limit]

[Andrew Makhorin]

-------- Forwarded Message --------
From: sheetal murkute <address@hidden>
To: address@hidden, Andrew Makhorin <address@hidden>
Subject: Re: Error - negative iteration limit
Date: Fri, 13 Jan 2012 15:51:56 -0500

Furthermore, I have displayed last few lines in the log file below when
I get negative iteration limit error.

+184153: mip =   2.075400000e+05 >=   2.025778983e+05   2.4% (16051;
2956)
+184223: mip =   2.075400000e+05 >=   2.025778983e+05   2.4% (16055;
2961)
+184309: mip =   2.075400000e+05 >=   2.025778983e+05   2.4% (16059;
2966)
+184390: mip =   2.075400000e+05 >=   2.025778983e+05   2.4% (16066;
2968)
+184492: mip =   2.075400000e+05 >=   2.025778983e+05   2.4% (16066;
2974)
+184594: mip =   2.075400000e+05 >=   2.025778983e+05   2.4% (16068;
2978)
Time used: 12257.2 secs.  Memory used: 103.7 Mb.
+184671: mip =   2.075400000e+05 >=   2.025778983e+05   2.4% (16069;
2983)
+184741: mip =   2.075400000e+05 >=   2.025778983e+05   2.4% (16072;
2985)
+184822: mip =   2.075400000e+05 >=   2.025778983e+05   2.4% (16075;
2990)
+184918: mip =   2.075400000e+05 >=   2.025778983e+05   2.4% (16078;
2995)
+185113: mip =   2.075400000e+05 >=   2.027808401e+05   2.3% (16080;
3008)
+185364: mip =   2.075400000e+05 >=   2.027808401e+05   2.3% (16093;
3022)
glp_simplex: it_lim = -188940; invalid parameter
Error detected in file glpapi06.c at line 403



On Fri, Jan 13, 2012 at 3:49 PM, sheetal murkute <address@hidden>
wrote:
        Hi,
        
        
        I have implemented strong branching for 20 datasets. For three
        of these datasets,
        My code gets terminated with error.
        The message displayed in the log file is as follows.
        
        
        glp_simplex: it_lim = -188940; invalid parameter
        Error detected in file glpapi06.c at line 403
        
        
        I have given iteration limit for calculating LP relaxation of
        the child nodes. I have set this limit to positive value only.
        I have not provided any simplex iteration limit elsewhere.
         
        Can you please guide where this garbage negative value can come
        from?
        
        
        
        
        
        
        -- 
        Thanks with Best Regards,
        Sheetal 
        
        




-- 
Thanks with Best Regards,
Sheetal 

:)