http://jrobots.cfxweb.net The February tournament does not show very different results from the past. We must register another triple victory of IonStorm,...
The March 2004 JROBOTS Challenge starts now http://jrobots.cfxweb.net Remember that you can send your robots even in the course of the challenge, so you're...
Hello I'm new to this group I just downloaded the 'JDK-1_0_2-win32- x86.zip' and tried to run BlueJ with it and I get this error 'NO tools.jar this may be a...
Don't use such an obsolete JRE! Download JDK 1.4.2 and compile with the -target 1.1 option. Scott...
Scott Palmer
scott.palmer@...
Mar 26, 2004 1:36 pm
510
The "March 2004 JROBOTS Challenge" ends now! As usual the official results are going to be published on wednesday, March 31st. If you followed the partial...
... You can find news about the results of the last challenge below, but, first of all, I want to announce that the fifth years of JROBOTS challenges begins...
The April 2004 JROBOTS Challenge starts now http://jrobots.cfxweb.net Remember that you can send your robots even in the course of the challenge, so you're...
hello, I reported some time ago that jrobots was incredibly slow on the systems i have access to. Yesterday, i wanted to improve that poor robot i've done ...
hello, I reported some time ago that jrobots was incredibly slow on the systems i have access to. Yesterday, i wanted to improve that poor robot i've done...
... That's good. ... That's bad. ... Yes multi-threading on Linux is not good. ... Why do you believe this will help?...
Scott Palmer
scott.palmer@...
Apr 4, 2004 11:19 pm
516
... Ok, i just find it strange that this is reported as consuming cpu. I thought it would just release the cpu immediatly. ... libgcj can actually interpret...
... Ok, i just find it strange that this is reported as consuming cpu. I thought it would just release the cpu immediatly. ... libgcj can actually interpret...
... I may have been to quick to respond, but I don't think that means it is consuming CPU at all. It means that it is waiting there to get the CPU back from...
Scott Palmer
scott.palmer@...
Apr 5, 2004 3:12 pm
519
(Sending this post another time, because it's been hours i've posted it, and it still doesn't appears on the group) ... Right, i don't know where the problem...
(quoting myself) ... PS: Actually, X Window, which runs with a higher priority than other processes still handle the mouse movements, but it sometimes freeze...
... Right, i don't know where the problem is. But if it's not the fault of the JVM or the way jrobots manage the threads, then what is it? I have no clue. It's...
Grep the JRobots code for setPriority. It has been a while since I've looked at it, but I think you will find a spot that sets the thread priority for each...
Scott Palmer
scott.palmer@...
Apr 6, 2004 1:08 am
523
... If it is the way jrobots manages threads then simply rewriting it in C/C++ shouldn't change that. I'm pretty sure that the Sun VM on Linux uses native...
Scott Palmer
scott.palmer@...
Apr 6, 2004 6:02 am
524
Hi all At the moment don't have time (or interest) enough to study the threading problems in JRobots but since i have been working with very time critical real...
Some correction about Linux 2.6.3 from the previous post (if they ever appears in the order i send them, which is rare) ############## # Linux 2.6.3 with...
... I agree that JRobots would benefit from this. I tried such an approach a couple of years ago, with some success. The approach seemed sound, and it worked...
With MS's applet viewer, there are 2 problems 1) the initial size of the window reduced to "zero". 2) the applet crashes after the first match is done....
... in ... the ... Indeed. Browsing the net, I came accross some discussions about what system calls the various thread management methods in java should be...
What this shows is is that a context switch is (very) expensive. Without yeild() a context switch will happen much less often. The yeild() calls simply provide...
Scott Palmer
scott.palmer@...
Apr 6, 2004 4:25 pm
530
... before ... the one ... it to ... priority. ... Hmm, if i'm not missing something, the only thing that we must ensure is that during a fixed period of our...
... This is where I disagree. I don't think we can rely on the OS. For one thing, the granularity of the steps matters. If it is too much then robots will...
Scott Palmer
scott.palmer@...
Apr 6, 2004 7:57 pm
532
Hello everyone! I'm new in java programming and in java challenges, but i'm doing my best to learn as quick as I can. I want to ask you a question. When I...
... Hi, i think (haven't checked, tho) that the vscan method returns a null pointer when there's is no robot detected by the scanner beam. In this case, this...
The April 2004 JROBOTS Challenge ends now! The official results will be published on wednesday, April 28th http://jrobots.cfxweb.net This month there are good...
