[Clp] NEOS Question

Jeff Linderoth linderot at cae.wisc.edu
Mon Jul 21 12:15:10 EDT 2008


Hi Alisher,

> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Sun, 20 Jul 2008 14:28:29 -0700 (PDT)
> From: alisher at u.washington.edu
> Subject: [Clp] NEOS Question
> To: clp at list.coin-or.org
> Message-ID:
> 	<Pine.LNX.4.43.0807201428290.15876 at hymn34.u.washington.edu>
> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed
> 
> Hello,
> 
> I emailed an LP to NEOS and received a confirmation from the server. Several minutes later, the "results" arrived. However, as you can see from the message below, the results came back with an error.
> 
> Does anyone know what generates this sort of error? Was my LP not in the correct format?
> 
> I'm a brand new user of NEOS so any help would be much appreciated.
> 
> Thanks,
> 
> Alisher
> 


NEOS questions are best asked to neos-comments at mcs.anl.gov.
In this case, your MPS file was wrong:

Here is the full output:


neos at hamms:~/var/jobs/1676142$ ~/neos-bin/clp clp.mps
Coin LP version 1.03.03, build Aug 18 2006
command line - /home/neos/neos-bin/clp clp.mps
At line 4 NAME         Problem1
At line 5 ROWS
At line 6 N   z
Bad image at line 6 < N   z >
Returning as too many errors
Segmentation fault


I'll look into why NEOS Clp/MPS didn't give a better error message.

Hope this helps.

Cheers,
-Jeff


> 
> ---------- Forwarded message ----------
> Date: Sun, 20 Jul 2008 15:07:52 -0500
> From: neos at mcs.anl.gov
> To: alisher at u.washington.edu
> Subject: NEOS Results for Job #1676142
> 
> You are using the solver clp-mps.
> 
> \%%%%%%%%%%%%%%%%%%%% CLP Results %%%%%%%%%%%%%%%%%%%%
> 
> Load Avg: ( 0.0 , 0.0 , 0.0 )
> Coin LP version 1.03.03, build Aug 18 2006
>   Error (35584) in /home/neos/neos-bin/clp clp.mps - < clp.par
> 
> 
> %%%%%%%%%%%%%%%%%%%% CLP Results %%%%%%%%%%%%%%%%%%%%
> 
> 
> 


-- 
Jeff Linderoth
Associate Professor
Dept. of Industrial and Systems Engineering
University of Wisconsin-Madison
O: 608-890-1931



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