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194 discussions

Sample Data for Contestants?
by Marc Furon 12 Nov '15

12 Nov '15

Greetings! Perhaps I'm mistaken...but isn't there a way for contestants to download the input and output files marked "sample" for a given file from inside DOMjudge? I thought this was possible but I don't see how, and I looked through the documentation. One other question, if someone knows: is the information about the contest start time and end time available inside the renderScoreBoardTable function? I figured out how to do everything else I want with the scoreboard but there is one thing I want to do once the contest is half over. It looks like the information might be in the $cdata variable--is there a description of the internal data structures somewhere? Our contest is Saturday and it looks like things are coming together...this is the first year I have been delving deep into DOMjudge, and I am impressed with what I have found. Thanks to the team for developing and maintaining the system. Marc

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Re: example problem : hello world, with java, compiler error
by Jaap Eldering 12 Nov '15

12 Nov '15

First of all, please do keep replies going to the list. On 11-11-15 12:51, adi ansyah wrote: > yes, i'm using domjudge live image, domjudge-live_2015-08-23 with > domjudge version 5.0.0. Ok, strange. I've just tested that live image and Java submissions compile fine here. > did i need to check the chroot too? No, sorry, that's not relevant for compiler errors. > here is the log : [...] > > the full log is attached. > thx Unfortunately the logs don't show any useful errors. Could you please look on the domjudge-live image under /var/lib/domjudge/judgings/domjudge-live-0/endpoint-default There should be subdirectories of the form cX-sYY-jZZ for each submission/judging there. Check in the webinterface what one of the java compiler-errror's submission and judging ID is and please send a zip file of that directory. The files compile.{out,tmp,meta} may contain some clues as to what goes wrong. Jaap > On Wed, Nov 11, 2015 at 8:24 PM, Jaap Eldering <jaap(a)jaapeldering.nl > <mailto:jaap@jaapeldering.nl>> wrote: > > Hi Adi Ansyah, > > First, which version of DOMjudge are you using? Is this on the live > image? > > If not, did you build a chroot environment with the script > dj_make_chroot and enable it in etc/judgehost-config.php? See the > documentation: https://www.domjudge.org/docs/admin-manual-8.html#ss8.1 > > Finally, to trace down the problem, please send us the judgedaemon log > file, which should be located under > $PREFIX/domjudge/judgehost/log/judge.$HOSTNAME.log > > Jaap > > > On 11-11-15 07:34, adi ansyah wrote: > > i ask my friends to try a testing contest with Hello world as the > > question problem. > > i find that every single "java" code is rejected with message > > "compiler-error". > > but no problem when they upload C code. > > > > here is the java code : > > > > public class hello { > > > > public static void main(String[] args) { > > System.out.println("Hello world!"); > > } > > > > } > > > > here is the error message as admin : > > > > > > Compilation unsuccessful > > > > Compiling aborted after 1 seconds, compiler output: > > /usr/sbin/runguard: warning: timelimit exceeded (hard wall time): > aborting command > > /usr/sbin/runguard: warning: command terminated with signal 15 > > /usr/sbin/runguard: warning: timelimit exceeded (soft wall time) > > > > > > > > _______________________________________________ > > DOMjudge-devel mailing list > > DOMjudge-devel(a)domjudge.org <mailto:DOMjudge-devel@domjudge.org> > > https://www.domjudge.org/mailman/listinfo/domjudge-devel > > > > _______________________________________________ > DOMjudge-devel mailing list > DOMjudge-devel(a)domjudge.org <mailto:DOMjudge-devel@domjudge.org> > https://www.domjudge.org/mailman/listinfo/domjudge-devel > >

4 7

example problem : hello world, with java, compiler error
by adi ansyah 11 Nov '15

11 Nov '15

i ask my friends to try a testing contest with Hello world as the question problem. i find that every single "java" code is rejected with message "compiler-error". but no problem when they upload C code. here is the java code : public class hello { public static void main(String[] args) { System.out.println("Hello world!"); } } here is the error message as admin : Compilation unsuccessful Compiling aborted after 1 seconds, compiler output: /usr/sbin/runguard: warning: timelimit exceeded (hard wall time): aborting command /usr/sbin/runguard: warning: command terminated with signal 15 /usr/sbin/runguard: warning: timelimit exceeded (soft wall time)

2 1

domjudge 5.01 installation error
by Sunil Kumar U.K. 09 Nov '15

09 Nov '15

Hi, I am Sunil working in Amrita University in India. Recently I installed domjudge server 5.0.1 and judge host. I found that There is not present very important scripts like compile_java.sh in the location /domjudge/judgehost/lib/judge/ Kindly provide solution regarding this issue Thanking You Sunilkumar U.K. Senior System Administrator AMrita University Amritapuri, Kollam Kerala India 690525 phone: 9666671509 -- -- Disclaimer: The information transmitted in this email, including attachments, is intended only for the person(s) or entity to which it is addressed and may contain confidential and/or privileged material. Any review, retransmission, dissemination or other use of, or taking of any action in reliance upon this information by persons or entities other than the intended recipient is prohibited.Any views expressed in any message are those of the individual sender and may not necessarily reflect the views of Amrita University. If you received this in error, please contact the sender and destroy any copies of this information.

2 1

Scoreboard Timing?
by Marc Furon 02 Nov '15

02 Nov '15

Hello! We are working on re-implementing a couple of changes we made to a earlier version on DOMjudge in Southern California. One of the changes is to time to the second instead of the minute. It looks to me like the scorecache_ tables are what is used to build the scoreboard displays for the public and the jury. I see the time is currently stored in those tables in minutes, but it also looks like there is one function (calcScoreRow) that populates the table, and it is doing the division by 60 to get minutes. If the scorecache_ tables are not used for anything else, I see no reason why I couldn't change that function in order to get seconds. Is my understanding correct? Marc

2 1

install domjudge and judgehost in separate machine
by adi ansyah 29 Oct '15

29 Oct '15

hi, i want to install the domjudge and the judgehost in separate machine.but the problem is i cant connect the domjudge to the judgehost. the instruction said: "the DOMjudge REST API credentials on domserver need to be synchronized to each judgehost and edited to point to the domserver." is the /etc/domjudge/restapi.secret the right file?? this is my restapi.secret in judgehost server : default http://10.10.30.71/domjudge/api domjudge oP0MRGIegQtV6rJd 10.10.30.71 is the domjudge's ip address. and 10.10.30.73 is the judgehost's ip address. i cant solve this problem for around 2 weeks now. any help will really be appreciated

2 1

DOMjudge 5.0.1 and Java in "chroot" (Fedora 22 64-bit)
by Marc Furon 25 Oct '15

25 Oct '15

Greetings! I am configuring DOMjudge 5.0.1 in a Fedora 22 64-bit environment. Most things seem to be working. I am trying to get Oracle Java 8u60 to run correctly in a "chroot" environment. I built the chroot directory more-or-less manually, installing Java into it (under /opt) and copying the necessary library files. I also copied /bin/bash into the chroot area along with its necessary library, and linked sh to bash. I edited the java_javac_detect script to run /opt/java/bin/java as "program". If I run a chroot command from the shell, bash starts, and I can run "/opt/java/bin/java -version". It complains about the lack of a monotonic clock but otherwise seems to run. I then tried to run the "Hello World" tests. C and C++ work fine. Java fails. I went into the execution directory and the program.err file says that it could not exec /opt/java/bin/java. Has anyone tried to get this kind of configuration running? Any ideas about how to best configure Java in this environment? Suggestions will be greatly appreciated. Marc

2 1

DOMjudge (automatic) team logins
by kjohns07 25 Oct '15

25 Oct '15

Hey everyone, I was wondering how other people handle logging teams in to domjudge during their competitions? We’ve always have volunteers go around to the team computers and manually log them in before the contest started, but I’ve always found that to be a bit tedious. We never liked the idea of giving the teams their own passwords since they could easily share them with each other. Since we control the contest environment, I found a way to use a local squid proxy to log teams in automatically, without revealing the credentials to the team. I thought I’d share this since someone else might be interested. You can read about it here: http://icpc-environment.github.io/2015/10/24/domjudge-autologin.html I don’t know if there is any interest in merging a feature like this into the main DOMjudge tree though, any thoughts? It’s a relatively small patch, but it’s such a narrow use case I don’t know if it’s worth supporting generally. -Keith Johnson US Southeast Region

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Ruuning CUDA on chroot
by Leandro Zanotto 09 Sep '15

09 Sep '15

Hi, I am trying to compile and run a CUDA code on Dom Judge, but as I see it uses the chroot. Do you know if anyone tried it before? How could I do it? Thanks -- Leandro Negri Zanotto

2 1

New features / improvements / bugs
by Leandro Zanotto 31 Aug '15

31 Aug '15

Hi, How can I send the bugs I found? Can I request new improvements / features? If I change something locally can I show to dev team what I did and share my code? Thanks -- Leandro Negri Zanotto

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