I'm Heading to UCLA
 

Tomorrow, I will board a (very long flight across the Pacific Ocean) flight to Los Angeles. On Sept. 27, I will begin my undergraduate education at the University of California Los Angeles. I'm planning on majoring in Mathematics.

This should have no effect on my computers' GIMPS work. Also, I should be able to continue posting on this forum as normal once I get there.

Jin

I'm Heading to UCLA
 

Dear Jinydu,
I wish you all the best in your studies at the UCLA.
Please keep in touch with us with GIMPS.
You have the makings of a brilliant mathematician. I have read many of your threads and posts and they were excellent.
It was once my ambition in my teens to study there but never had the chance.
Well Im on my way out and you are just starting your career.
May God bless you son. Please carry the torch for many others who require it
Mally. :coffee:

good luck wish you the best of luck.

From a UCLA alum, best of luck. I am sure you will enjoy your time there very much!

Good luck and all the best

God bless you and be sure to install Prime95 on every computer! :smile:

Thanks for all your support. I'm leaving home in just a few hours.

I'll post an update here as soon as I can.

Good luck!

Going overseas to live at a university is no easy thing!

I hope everything goes well for you!

Good luck Jinydu!

Alright, I've arrived in LA. It may take a few days to get my Internet going (I'm posting this from my aunt's house).

Hi,

Glad you arrive well in LA. Take care!

Edo

The dorms in UCLA (and most Uni's) have hi-speed network connections.

I am living in an apartment unit, not a dorm.

However, I've discovered a problem. Ever since leaving home, my most powerful home computer has not communicated with the server at all, even though I instructed it to communicate with the server daily. The LL test it was doing when I left should be long done by now. What could be the problem?

It may have picked up a new exponent and is now doing the factoring and/or P-1. Once it finishes that it should report normally.


[QUOTE=jinydu]I am living in an apartment unit, not a dorm.

However, I've discovered a problem. Ever since leaving home, my most powerful home computer has not communicated with the server at all, even though I instructed it to communicate with the server daily. The LL test it was doing when I left should be long done by now. What could be the problem?[/QUOTE]

[QUOTE=jinydu]Tomorrow, I will board a (very long flight across the Pacific Ocean) flight to Los Angeles. On Sept. 27, I will begin my undergraduate education at the University of California Los Angeles. I'm planning on majoring in Mathematics.

This should have no effect on my computers' GIMPS work. Also, I should be able to continue posting on this forum as normal once I get there.

Jin[/QUOTE]

Have a good trip!

That computer still hasn't returned any results. According to my dad, the computer has now finished 2 exponents since I left. But it seems to be unable to communicate the results to the server.

[QUOTE=jinydu]That computer still hasn't returned any results. According to my dad, the computer has now finished 2 exponents since I left. But it seems to be unable to communicate the results to the server.[/QUOTE]

Worst case scenario: e-mail the prime.spl file to George and he'll credit you manually.

Finally, the computer made a successful Manual Communication (I asked my dad to do it). Unfortunately, it seems 2 weeks of computing have disappeared without a trace... Still it's better than losing the entire computer from GIMPS.

Unfortunately, the computer has stalled, again! No updates since Oct. 13. It should have finished its exponent 5 days ago!

:rant: :furious:

Since you're no longer there to supervise it, it's taking a break from Prime95 duties. :grin: :wink:

It had been working flawlessly for almost two years before I left! I guess its time for another talk with my dad...

More oddities! On my Individual Account Report page, it incorrectly states that my new laptop is 596MHz, when in fact it is 1596MHz. This is not a serious problem, but...

Well, the main problem continues to persist. Its especially frustrating, because it is a powerful producer: 3.055GHz. I've had an instant messenger conversation with my dad about it:

duruxu: Here is what the Prime95 said: "unable to open spool file", unable to open log file
jinydu: Is there an error number?
duruxu: No
jinydu: Has it stopped running completely, or is it just unable to communicate?
duruxu: it says "will try contracting server again in 60 minutes
jinydu: But I mean, is it still running a prime test? Is the iteration number increasing?
duruxu: No
jinydu: Hmm, how about this? Go to Test-> Exit. Then restart Prime95.
duruxu: Exit is done. Now I cannot find where is the Prime95
jinydu: Go to Start -> All Programs. It should be there somewhere
duruxu: Ah, it is running now
jinydu: Ok, good. What exponent is it testing?
duruxu: 13009309
jinydu: Ok, what is the current iteration number (approximately, since its constantly changing)?
duruxu: 11010900
jinydu: Ok, so it has made some progress since it last updated the server. Now, could we try a Manual Communication?
duruxu: tried
jinydu: Hmm, didn't see any change in the status. Did it say "Done Communicating with Server", or was there an error message?
duruxu: There is no error message this time
jinydu: Strange, there's still no change in status. Did you remember to check the box saying "Send new expected completion dates?"
duruxu: Just did that
jinydu: Hmm, ok, try this
jinydu: Go to Options -> Preferences
jinydu: Change "iterations between screen outputs" to 10000. That should stop the numbers moving (more precisely, slow it down by a factor of 10000)
duruxu: Yes, it does
jinydu: Ok, now you can try Manual Communication. Please tell me everything that it says.
duruxu: It says "done communicating with server"
duruxu: nothing else
jinydu: That's just strange... I've got just one last idea. Go to Test -> Stop. The icon should turn yellow. Then, go to Test-> Continue, turning it back to red. Then, Exit the program (Test->Exit) and reopen in a different user account. Then, try Manual Communication.
duruxu: Well, as I do "continue", it gives a message "error writing intermediate file: rD009309
duruxu: "Error opening results file to output this message:"
duruxu: "Unable to open log file,"
duruxu: "Execution halted."
duruxu: "Choose Test/Continue" to restart
duruxu: "ERROR: Unable to open spool file"
duruxu: "Resuming primality test of M130093909 at iteration 11004801 [84.59%]"
jinydu: Hmm. That's lower than 11010900, the number you gave me before. Therefore, it must have been unable to write a save file. This is not a trivial problem...
duruxu: "[Oct 24 07:22] Iteration: 11010000/13009309 [84.63%]. Per iteration time: 0.030 sec."
duruxu: My typing may not be very accurate.

Disk full? I've had "error writing intermediate file" when no disk space was left.

Please, does anyone have any ideas about how to fix this problem? This is a 3.055GHz computer. If it stops working for me, I will have a much more difficult time "achieving my goals".

By the way, I'm quite sure the hard disk is nowhere near full. That computer has over 30GB of space, and I think it wasn't even half full when I left. In any case, I couldn't imagine my family installing things that would take more than 10GB of space.

[QUOTE=jinydu]By the way, I'm quite sure the hard disk is nowhere near full. That computer has over 30GB of space, and I think it wasn't even half full when I left. In any case, I couldn't imagine my family installing things that would take more than 10GB of space.[/QUOTE]

Check the hard disk space anyway. Sometimes runaway process create huge files that the user never intended. Also check the files weren't somehow redirected to the floppy or the flash drive you took with you.

After checking that, check that permissions and read/write flags are set OK.

What is the OS? Consider setting up something like terminal services so you can log on from UCLA and control the computer from there to try things yourself.

Thanks, I will ask my dad to check the hard disk space. As before, I really don't know what's going on. The computer worked just fine for nearly 2 years while I was in Hong Kong.

The OS is Windows XP Professional (I think its SP1, but I'm not sure). Unfortunately, I don't know how to set up remote access. I am planning to visit home during Christmas holidays, but that's about 2 months away, so if a fix has to wait until then, a lot of work will be lost.

My goal is to get into the Top 1000 (Primality Testing). I'm currently ranked #1100. I will definitely get there a lot faster if I can get that computer working.

By the way, the incorrect MHz number on the account page seems to be fixed now. My new computer is now correctly listed as 1596 MHz.

You can turn on remote desktop easy... Right click "My Computer" and hit properties... One of the tabs is for remote access...

All you need is the IP address to connect from another XP box, and you can even use a Linux box to connect with rdesktop...

If you have the XP firewall turned on, you need to allow the remote desktop service to go through...

This is what rdesktop looks like:

[url]http://www.mersenneforum.org/showpost.php?p=21463&postcount=252[/url]