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-   -   LLRnet and PRPnet servers for automated LLR (https://www.mersenneforum.org/showthread.php?t=13805)

mdettweiler 2010-09-04 17:14

[QUOTE=Lennart;228401]I have emailed Max that I will put some more on the server. I see now that it will soon dry out so I may have to move them for a while. :smile:

Lennart[/QUOTE]
Okay, let 'er rip. :smile: I've loaded an n=500 range this time (480501-480999) so it should last longer--though I'll watch it closely. (I'll need more sieve file to add anything more, though, as I mentioned in the LLR reservation thread.)

mdettweiler 2010-09-05 02:28

Apologies for the recent ~3 hour downtime on PRPnet--I had forgotten to set maxclients=1000 in the prpserver.ini file, so Lennart's hordes overloaded the server on the default of 10. It appears that we [i]may[/i] have also run into the dreaded "too many connections" bug (exacerbated by the anemic maxclients= figure), but I'm not entirely positive on that. Either way, though, the server was down for 3 hours and I probably could have avoided it had I paid more attention when initially setting up the server. :rolleyes:

I've now fixed the maxclients= setting and restarted the server. Hopefully we won't run into any more problems now. :smile:

mdettweiler 2010-09-05 22:50

There's another power outage at Gary's house right now, so the whole noprimeleftbehind.net site and all the LLRnet/PRPnet servers on it are down.

Man, we're getting them outages right and left now...usually Gary will go for months without any power outages, and even then they're mostly just <1 minute flickers, which the UPS can handle fine. Actually, the UPS should be able to handle the big ones as well--it can keep the computer and router going for up to ~1.25 hours. The problem seems to be on the ISP end: the internet goes kapooey every time the power cuts out. :sick:

mdettweiler 2010-09-05 23:00

[QUOTE=mdettweiler;228595]There's another power outage at Gary's house right now, so the whole noprimeleftbehind.net site and all the LLRnet/PRPnet servers on it are down.

Man, we're getting them outages right and left now...usually Gary will go for months without any power outages, and even then they're mostly just <1 minute flickers, which the UPS can handle fine. Actually, the UPS should be able to handle the big ones as well--it can keep the computer and router going for up to ~1.25 hours. The problem seems to be on the ISP end: the internet goes kapooey every time the power cuts out. :sick:[/QUOTE]
...and we're back! :big grin: That was fast, fortunately. And thanks to the UPS, even though the server was inaccessible for a little while in there, it picked up right where it left off when the internet came back online.

Lennart 2010-09-06 01:48

[quote=mdettweiler;228319]No problem--that's the nice thing about PRPnet, you can dry out one server and nobody goes idle. :smile:

Do you by chance know how long you'll be staying on the TPS server with this number of cores? I can then calculate an approximate figure for how much work will need to be loaded in to cover that time frame.[/quote]

I will not have many left now before next weekend :smile:

Lennart

mdettweiler 2010-09-06 04:40

Oddball, I see the LLRnet server is going to run out of work in a few minutes. Do you want me to load in a little more work (say, n=481501-481600)?

Oddball 2010-09-06 05:12

[quote=mdettweiler;228623]Oddball, I see the LLRnet server is going to run out of work in a few minutes.[/quote]
I just finished drying it up :wink:

[quote]Do you want me to load in a little more work (say, n=481501-481600)?[/quote]
It looks like LLRnet is less popular than PRPnet, so you can load n=484900-484999 instead of n=481501-481600.

mdettweiler 2010-09-06 13:20

[quote=Oddball;228626]It looks like LLRnet is less popular than PRPnet, so you can load n=484900-484999 instead of n=481501-481600.[/quote]
Done.

mdettweiler 2010-09-13 06:12

The servers are down right now--this time it's actually not a power outage, but rather a strange double outage of phone and internet. (Gary's internet is cable-based, so one wouldn't expect them to necessarily go out together.) Hopefully it will be back up soon.

Oddball 2010-10-01 06:33

Max, could you replace n=481400-481500 on the PRPnet server with these candidates?

[URL]http://www.sendspace.com/file/4asdih[/URL]

gribozavr just posted that file a short time ago, and it has a greater sieve depth.

Also, the LLRNet server has dried out, so it'll be nice if you load n=484000-484899 into port 12050.

mdettweiler 2010-10-01 07:39

[QUOTE=Oddball;232189]Max, could you replace n=481400-481500 on the PRPnet server with these candidates?

[URL]http://www.sendspace.com/file/4asdih[/URL]

gribozavr just posted that file a short time ago, and it has a greater sieve depth.

Also, the LLRNet server has dried out, so it'll be nice if you load n=484000-484899 into port 12050.[/QUOTE]
Done. The current load of each server is now:

[b]Port 12000 (PRPnet)[/b]
n=481000-481399 from the 5 September sieve file (in progress)
n=481400-481500 from the 1 October sieve file

[b]Port 12050 (LLRnet)[/b]
n=484900-484999 from the 5 September sieve file (in progress--1 pair left)
n=484000-484899 from the 1 October sieve file

Note that for LLRnet I listed the ranges seemingly "out of order". This reflects the exact order in which the server "sees" them and is due to a slight difference in how PRPnet and LLRnet handle these. PRPnet is set to sort by n, so it looks in the database for the lowest available n (and the lowest available k within that). LLRnet, on the other hand, reads pairs in the exact order they're listed in knpairs.txt. In this case, when adding the new range I concatenated the new pairs onto the existing knpairs.txt, so the one last pair from the old range actually comes first (even though it's higher n-wise). This will be reflected on the web page's first/last pair display (at least until that one last pair from the old range is completed).

Confused yet? :wink: (It's 3:30 AM here so please pardon me if this wasn't explained as well as it could be.)


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