November 2010 - Neos-comments - mailman3.cels.anl.gov

[NEOS Support Req #526] Problem using SCIP to solve MILP CPLEX models on sokrates.la.asu.edu
by M. Saminathan 26 Nov '10

26 Nov '10

Hi, I want to bring the following problem I encountered when I submit MILP models to be solved using SCIP and CPLEX LP solver. I have no control over which server the model gets submitted. I have noticed they get scheduled either on euler, athene, or sokrates. I get expected results when the models are scheduled either on euler or athene. But the solution process gets abruptly terminated without any diagnostic message if it gets scheduled on sokrates. I have been submitting my models several times hoping they hit either athene or euler to get my results. I just want to bring this to your attention. Thanks M. Saminathan

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[NEOS Support Req #525] IPOPT in NEOS
by Teresa Monteiro 25 Nov '10

25 Nov '10

Dear professors, I'm trying to submit, an AMPL model in NEOS server using the IPOPT. However Neos server gives always the following message: "No stations available for solver nco:Ipopt:AMPL. Solver administrator has been notified." Would you mind helping me in this situation? Sincerily Teresa Monteiro

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[NEOS Support Req #524] large SDP problem
by Christian Schaffner 24 Nov '10

24 Nov '10

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Dear NEOS staff I am working in quantum information theory. We use SDPs to upper bound the success probability of players to win non-local games. In this context, I've been trying to run a large SDP problem on your servers, but they could not solve it (I assume due to memory restrictions). The job numbers were: #2210449, #2210463, #2210465, #2210467, #2210519, where the last one seems not to have finished: http://neos.mcs.anl.gov/neos/jobs/2210519.html The problem is here, given in sparse-SDPA format: http://homepages.cwi.nl/~schaffne/magic/magicsquare.dat-s The developers of SDPARA have managed to solve a similar problem on their cluster using 64 PCs in about 40 minutes. I was wondering whether this is the only parallel SDP solver out there or if you might now of other solvers which are capable to solve such (large) problems. Best regards, Christian Schaffner - -- - ------------------------------------------------------------- Christian Schaffner Centrum Wiskunde & Informatica (CWI), PNA 6 P.O. Box 94079 1090 GB Amsterdam The Netherlands fon: +31 20 592 4236 fax: +31 20 592 4199 e-mail: c.schaffner(a)cwi.nl web: http://www.cwi.nl/~schaffne -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/ iEYEARECAAYFAkztWdsACgkQ1BrJrQ00pSIdvwCeN5zAJBgCv2CKgYp1Ly0ELRZi 1kgAmgJv6IAHORHv5f2Os0au+wEiLDEm =t4Mf -----END PGP SIGNATURE-----

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[NEOS Support Req #523] Lingo
by William Allen Noel 24 Nov '10

24 Nov '10

Hello, My name is Bill Noel and I am a graduate student at Indiana University of Pennsylvania. I am doing a group project, and we are using Lingo 12.0. We have too many non-linear variables for the demo version of Lingo we are using to solve. I was wondering if any of your solvers would be able to solve a model that was ceated in Lingo 12.0. Thanks for your help, Bill Noel

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[NEOS Support Req #522] Re: COULD NOT RUN THE PROGRAM
by Jason Sarich 22 Nov '10

22 Nov '10

Charlie, Could you please be more specific which java applet you are referring to? Thanks, Jason Sarich Argonne National Laboratory On Mon, Nov 22, 2010 at 1:03 PM, Charlie M. Ebietuoma jnr. < challymurphy(a)yahoo.com> wrote: > Please I downloaded the program simple java applet but it does not run as > it says no main class.please what do i do.Thank you. > >

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[NEOS Support Req #521] COULD NOT RUN THE PROGRAM
by Charlie M. Ebietuoma jnr. 22 Nov '10

22 Nov '10

Please I downloaded the program simple java applet but it does not run as it says no main class.please what do i do.Thank you.

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[NEOS Support Req #520] Re: problem with the cutting stock application
by Jason Sarich 22 Nov '10

22 Nov '10

Torsten, This should now be working again, sorry for the trouble. Jason Sarich Argonne National Laboratory On Mon, Nov 22, 2010 at 10:38 AM, <templin(a)mathematik.hu-berlin.de> wrote: > Dear ladies and gentlemen, > > for a lecture on operations research I want to present your apllication on > the cutting-stock-problem. If I try to run the program under the link > > http://neos.mcs.anl.gov/CaseStudies/cutting/input.html > > I get the following error message. > > > Error in FindNextWebJob<HTML><HEAD> > <TITLE> Cutting Stock Problem Scenario Input </TITLE> > </HEAD><BODY BGCOLOR=#FEFEFF> > <H1> Cutting Stock Problem Scenario Input</H1> > > <FORM METHOD="POST" ACTION="./nph-pl.cgi"> > <P> Width of the Raw Roll =<INPUT TYPE="TEXT" NAME="Raw_Width" > VALUE="100"><BR> > <H2> Your Input for the cutting standards </H2> > <p> > Please enter the data for 4 standards: the width and the number of orders > for each standard. > > <INPUT TYPE="HIDDEN" NAME="NumStandard" VALUE="4"> > <INPUT TYPE="HIDDEN" NAME="WebJobNumber" VALUE="-1"> > <P><HR> > <P><TABLE> > <TR><TH># </TH> <TH>Width</TH> <TH># of Orders</TH> > <TR><TH>#1</TH><TD><INPUT TYPE="TEXT" NAME="Width" VALUE="45" > COLS=25></TD><TD><INPUT TYPE="TEXT" NAME="Order" VALUE="97" > COLS=15></TD><TR><TH>#2</TH><TD><INPUT TYPE="TEXT" NAME="Width" > VALUE="36" COLS=25></TD><TD><INPUT TYPE="TEXT" NAME="Order" VALUE="610" > COLS=15></TD><TR><TH>#3</TH><TD><INPUT TYPE="TEXT" NAME="Width" > VALUE="31" COLS=25></TD><TD><INPUT TYPE="TEXT" NAME="Order" VALUE="395" > COLS=15></TD><TR><TH>#4</TH><TD><INPUT TYPE="TEXT" NAME="Width" > VALUE="14" COLS=25></TD><TD><INPUT TYPE="TEXT" NAME="Order" VALUE="211" > COLS=15></TD></TABLE><P> > <INPUT TYPE="reset" VALUE="RESET form"> > <INPUT TYPE="submit" VALUE="SUBMIT data"> > <P> The solution may take a minute or so to generate. > </FORM> > <A HREF="http://neos.mcs.anl.gov/CaseStudies/cutting/"><img > src="http://neos.mcs.anl.gov/CaseStudies/cutting/doorin2.gif"></A> > </BODY> > </HTML> > > > I already tried it with windows and linux and under different browsers and > it seems like there is some general error. > > Kind regards, > > Torsten Templin > student assistant > Institute of Operations Research > Humboldt University of Berlin > >

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[NEOS Support Req #519] problem with the cutting stock application
by templin＠mathematik.hu-berlin.de 22 Nov '10

22 Nov '10

Dear ladies and gentlemen, for a lecture on operations research I want to present your apllication on the cutting-stock-problem. If I try to run the program under the link http://neos.mcs.anl.gov/CaseStudies/cutting/input.html I get the following error message. Error in FindNextWebJob<HTML><HEAD> <TITLE> Cutting Stock Problem Scenario Input </TITLE> </HEAD><BODY BGCOLOR=#FEFEFF> <H1> Cutting Stock Problem Scenario Input</H1> <FORM METHOD="POST" ACTION="./nph-pl.cgi"> <P> Width of the Raw Roll =<INPUT TYPE="TEXT" NAME="Raw_Width" VALUE="100"><BR> <H2> Your Input for the cutting standards </H2> <p> Please enter the data for 4 standards: the width and the number of orders for each standard. <INPUT TYPE="HIDDEN" NAME="NumStandard" VALUE="4"> <INPUT TYPE="HIDDEN" NAME="WebJobNumber" VALUE="-1"> <P><HR> <P><TABLE> <TR><TH># </TH> <TH>Width</TH> <TH># of Orders</TH> <TR><TH>#1</TH><TD><INPUT TYPE="TEXT" NAME="Width" VALUE="45" COLS=25></TD><TD><INPUT TYPE="TEXT" NAME="Order" VALUE="97" COLS=15></TD><TR><TH>#2</TH><TD><INPUT TYPE="TEXT" NAME="Width" VALUE="36" COLS=25></TD><TD><INPUT TYPE="TEXT" NAME="Order" VALUE="610" COLS=15></TD><TR><TH>#3</TH><TD><INPUT TYPE="TEXT" NAME="Width" VALUE="31" COLS=25></TD><TD><INPUT TYPE="TEXT" NAME="Order" VALUE="395" COLS=15></TD><TR><TH>#4</TH><TD><INPUT TYPE="TEXT" NAME="Width" VALUE="14" COLS=25></TD><TD><INPUT TYPE="TEXT" NAME="Order" VALUE="211" COLS=15></TD></TABLE><P> <INPUT TYPE="reset" VALUE="RESET form"> <INPUT TYPE="submit" VALUE="SUBMIT data"> <P> The solution may take a minute or so to generate. </FORM> <A HREF="http://neos.mcs.anl.gov/CaseStudies/cutting/"><img src="http://neos.mcs.anl.gov/CaseStudies/cutting/doorin2.gif"></A> </BODY> </HTML> I already tried it with windows and linux and under different browsers and it seems like there is some general error. Kind regards, Torsten Templin student assistant Institute of Operations Research Humboldt University of Berlin

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[NEOS Support Req #518] Re: [Fwd: RE: [AMPL 4091] NEOS Error - Processing Data]
by Jason Sarich 22 Nov '10

22 Nov '10

Apurva, Your AMPL model involves writing to a file (network.dat). For security reasons, NEOS does not allow users to write to files. If possible, please try to rewrite your model so that it is self-contained. Jason Sarich Argonne National Laboratory On Fri, Nov 19, 2010 at 4:01 PM, Apurva Narayan <apurva.narayan(a)uwaterloo.ca > wrote: > Can you help me with the following mail ? > > Regards > Apurva > -- > Apurva Narayan > Department of Systems Design Engineering, > University of Waterloo, > 200 University Avenue West, Waterloo, > Ontario, Canada N2L 3G1 > Email : apurva.narayan(a)uwaterloo.ca > Web : http://www.eng.uwaterloo.ca/~a22naray/<http://www.eng.uwaterloo.ca/%7Ea22naray/> > > > > > ---------- Forwarded message ---------- > From: "Robert Fourer" <4er(a)ampl.com> > To: <ampl(a)googlegroups.com>, "'Apurva Bhatnagar'" <apurvanarayan(a)gmail.com > > > Date: Fri, 19 Nov 2010 15:34:44 -0600 > Subject: RE: [AMPL 4091] NEOS Error - Processing Data > Since this problem occurred using the NEOS server but not using AMPL > locally, did you try reporting the error to NEOS support by writing to > neos-comments(a)mcs.anl.gov? Using the information you supply, they would > be > able to look directly at your NEOS submission file and to suggest why there > is an error in it. > > Bob Fourer > 4er(a)ampl.com > > > > -----Original Message----- > > From: ampl(a)googlegroups.com [mailto:[email protected]] > > On Behalf Of Apurva Bhatnagar [apurvanarayan(a)gmail.com] > > Sent: Wednesday, November 10, 2010 3:56 PM > > To: AMPL Modeling Language > > Subject: [AMPL 4091] NEOS Error - Processing Data > > > > Hi Below is the output of my AMPL execution on the NEOS server, I > > uploaded a model, data and command file. Can some body help me out . > > What is the reason for my error. Because when I am excecuting it > > locally on AMPL i am able to execute it efficiently. > > > > Regards > > Apurva > > NEOS Server Version 5.0 > > Job# : 2201589 > > Password : kTHbNfEO > > Solver : milp:MINTO:AMPL > > Start : 2010-11-10 15:47:12 > > End : 2010-11-10 15:47:15 > > Host : oldstyle.ie.lehigh.edu > > > > Disclaimer: > > > > This information is provided without any express or > > implied warranty. In particular, there is no warranty > > of any kind concerning the fitness of this > > information for any particular purpose. > > ************************************************************* > > Job 2201589 sent to oldstyle.ie.lehigh.edu > > password: kTHbNfEO > > ---------- Begin Solver Output ----------- > > Executing /home/neos/neos-solvers/minto-ampl/minto-ampl-driver.py > > File exists > > You are using the solver mintoamp. > > Error: > > Executing AMPL. > > Error: amplin, line 124 (offset 3523): > > processing data. > > Error: expected set, param, [no]defaultsym or end > > processing commands. > > Error: context: >>> 0 <<< > > Error (512) in /home/neos/neos-bin/ampl -R amplin > > > > > >

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[NEOS Support Req #517] [Fwd: RE: [AMPL 4091] NEOS Error - Processing Data]
by Apurva Narayan 19 Nov '10

19 Nov '10

Can you help me with the following mail ? Regards Apurva -- Apurva Narayan Department of Systems Design Engineering, University of Waterloo, 200 University Avenue West, Waterloo, Ontario, Canada N2L 3G1 Email : apurva.narayan(a)uwaterloo.ca Web : http://www.eng.uwaterloo.ca/~a22naray/

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