mersenneforum.org  

Go Back   mersenneforum.org > Math Stuff > Computer Science & Computational Number Theory > PARI/GP

Reply
 
Thread Tools
Old 2010-08-27, 15:24   #947
Mini-Geek
Account Deleted
 
Mini-Geek's Avatar
 
"Tim Sorbera"
Aug 2006
San Antonio, TX USA

102538 Posts
Default

Quote:
Originally Posted by 3.14159 View Post
That's strange. The GIMPS site works just fine for me.
Quote:
Originally Posted by CRGreathouse View Post
It's working for me now. I didn't think to check downforeveryoneorjustme while it was down.
Mini-Geek is offline   Reply With Quote
Old 2010-08-27, 15:32   #948
3.14159
 
3.14159's Avatar
 
May 2010
Prime hunting commission.

24·3·5·7 Posts
Default

At most, I can have three searches that are running at their fastest. Or else there are severe slowdowns.

Last fiddled with by 3.14159 on 2010-08-27 at 15:32
3.14159 is offline   Reply With Quote
Old 2010-08-27, 15:45   #949
3.14159
 
3.14159's Avatar
 
May 2010
Prime hunting commission.

24·3·5·7 Posts
Default

Quote:
Originally Posted by CRGreathouse
I hope you got whatever information you needed.
I did. There's no need for implicit insults anyway.
3.14159 is offline   Reply With Quote
Old 2010-08-27, 15:55   #950
CRGreathouse
 
CRGreathouse's Avatar
 
Aug 2006

3·1,993 Posts
Default

Quote:
Originally Posted by 3.14159 View Post
At most, I can have three searches that are running at their fastest. Or else there are severe slowdowns.
This will depend mostly on your processor (and what settings you use). If you have a quad-core processor and enough non-sieve foreground tasks to fill one core (or N cores and enough other tasks to fill N-3 cores) then you'll get slowdown running more than 3 sieves just from lack of cycles. If you have large sieves that are in L3, and your processor has a shared L3, then once that gets filled you get a serious slowdown (probably worse than the above 25% slowdown; this one might be a 70% slowdown depending on how much spills out).

I don't have code for vk handy, but if you'll post your processor and the vk code I can tell you which of these is likely the problem (or if it's something else).
CRGreathouse is offline   Reply With Quote
Old 2010-08-27, 15:59   #951
CRGreathouse
 
CRGreathouse's Avatar
 
Aug 2006

3×1,993 Posts
Default

Quote:
Originally Posted by 3.14159 View Post
I did. There's no need for implicit insults anyway.
I don't know why you interpret that as an insult. (You seem quick to take umbrage.) You posted something that made no sense to me (just as if you had posted "elephants have four legs": true, I suppose, but what are you telling me?). I asked for clarification, and you told me more things that seemed unrelated (that all members of order Proboscidea, which includes elephants, are quadrupeds). Rather than ask for further clarification, I simply stated that I hoped you found what you needed: if you didn't, then you'd surely clarify what you needed rather than what you said, which is what I wanted to know.

Apparently you found out what you wanted to know. I'm glad. I still don't know what that is, but now I don't have to care.

Last fiddled with by CRGreathouse on 2010-08-27 at 15:59
CRGreathouse is offline   Reply With Quote
Old 2010-08-27, 16:12   #952
3.14159
 
3.14159's Avatar
 
May 2010
Prime hunting commission.

24×3×5×7 Posts
Default

Anywho:

Sieved to 1012 for k * 7569570 + 1, and currently sieving for k * 49995260 + 1 and k * 12969256 + 1

Found the 28170-digit prime 570331 * 293560 + 1

And, update on the placing: If I am to find a prime, it would now be 729th place. By the time I do find one, I might have dipped into the 1000s.

Last fiddled with by 3.14159 on 2010-08-27 at 17:09
3.14159 is offline   Reply With Quote
Old 2010-08-27, 17:13   #953
3.14159
 
3.14159's Avatar
 
May 2010
Prime hunting commission.

24×3×5×7 Posts
Default

The minimum for the top 5000 is now 161k digits. Ouch to everyone who barely failed.

Last fiddled with by 3.14159 on 2010-08-27 at 17:14
3.14159 is offline   Reply With Quote
Old 2010-08-27, 18:18   #954
science_man_88
 
science_man_88's Avatar
 
"Forget I exist"
Jul 2009
Dumbassville

26·131 Posts
Default

yeah i just downloaded prime95 to do something with all the downtime my computer (I did before I just find my PC too slow regardless of what I help with.)

right now I got 2 worker running with over 2900 Mb of ram and it's going at about .1% every 17 seconds with other stuff running.

Last fiddled with by science_man_88 on 2010-08-27 at 18:37
science_man_88 is offline   Reply With Quote
Old 2010-08-27, 18:56   #955
3.14159
 
3.14159's Avatar
 
May 2010
Prime hunting commission.

69016 Posts
Default

Quote:
Originally Posted by science_man_88
yeah i just downloaded prime95 to do something with all the downtime my computer (I did before I just find my PC too slow regardless of what I help with.)

right now I got 2 worker running with over 2900 Mb of ram and it's going at about .1% every 17 seconds with other stuff running
I can't run p95 with the sieving for the primes and the testing running at the same time. It slows the testing down to shit, and I can't run vk in PARI either, because it would slow things down severely as well. I got a 35% slowdown when using vk. (However, this is experienced whenever deep sieving using vk. It does no harm up until the 107 range.)

Not to mention, the network is failing as well, which is why I don't post often anymore.

Last fiddled with by 3.14159 on 2010-08-27 at 18:58
3.14159 is offline   Reply With Quote
Old 2010-08-27, 19:01   #956
science_man_88
 
science_man_88's Avatar
 
"Forget I exist"
Jul 2009
Dumbassville

26·131 Posts
Default

14-15% done both workers now. at this rate I'll never finish before my sister takes over my computer when she comes down to nag me about noise lol.
science_man_88 is offline   Reply With Quote
Old 2010-08-27, 19:08   #957
3.14159
 
3.14159's Avatar
 
May 2010
Prime hunting commission.

69016 Posts
Default

Quote:
Originally Posted by science_man_88
14-15% done both workers now. at this rate I'll never finish before my sister takes over my computer when she comes down to nag me about noise lol.
You'd never finish, because you would be assigned a random exponent every time you closed p95.

At the moment, my interest is personal records. Currently my personal record is 77285 digits, and I'm looking for either 119000 or 257920 digits.
3.14159 is offline   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Why do I sometimes see all the <> formatting commands when I quote or edit? cheesehead Forum Feedback 3 2013-05-25 12:56
Passing commands to PARI on Windows James Heinrich Software 2 2012-05-13 19:19
Ubiquity commands Mini-Geek Aliquot Sequences 1 2009-09-22 19:33
64-bit Pari? CRGreathouse Software 2 2009-03-13 04:22
Are these commands correct? jasong Linux 2 2007-10-18 23:40

All times are UTC. The time now is 23:11.


Fri Aug 6 23:11:35 UTC 2021 up 14 days, 17:40, 1 user, load averages: 4.96, 4.33, 4.08

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.

This forum has received and complied with 0 (zero) government requests for information.

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation.
A copy of the license is included in the FAQ.