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

[glpk xypron]

Hello Sheetal,

please, subscribe to the help list. Otherwise your mails have
to be forwarded manually.
https://lists.gnu.org/mailman/listinfo/help-glpk

How can your problem be reproduced?

Best regards

Xypron

> -------- 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 
> 

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