[Clp] NEOS Question

[Jeff Linderoth]

Hi Alisher,


alisher at u.washington.edu wrote:
> Hello,
> 
> I keep getting the same error message, and I can't find the error in my 
> MPS format. Perhaps the body of my message gets shifted when I send it...
> 
> Below is the problem that I have sent in. --Thanks, Alisher
> 

The 'N' and 'L' needs not to go in the first column.


Cheers,
-Jeff


> <document>
> 
> <priority>short</priority> <category>lp</category> <solver>Clp</solver> 
> <inputMethod>MPS</inputMethod>
> 
> <comments><![CDATA[ Comments here....
> ]]></comments>
> 
> <MPS><![CDATA[*
> *Op Name0---  Name1---  Value1------  Name2---  Value2------
> *23 56789012  56789012  567890123456  01234567  012345678901
> NAME          Prob1  ROWS
> N   z
> L   r1
> L   r2
> L   r3
> COLUMNS
>     x1        z         5             r1        2
>     x1        r2        4             r3        3  *
>     x2        z         4             r1        3
>     x2        r2        1             r3        4
> *
>     x3        z         3             r1        2
>     x3        r2        2             r3        2
> RHS
>     b         r1        5
>     b         r2        11
>     b         r3        8
> ENDATA *]]></MPS>
> 
> <param><![CDATA[
> maximize
> primalSimplex
> printingOptions all
> solution -
> ]]></param>
> 
> </document>
> 
> On Mon, 21 Jul 2008, Jeff Linderoth wrote:
> 
>> 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
>> _______________________________________________
>> Clp mailing list
>> Clp at list.coin-or.org
>> http://list.coin-or.org/mailman/listinfo/clp
>>
> 
> 


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