mersenneforum.org  

Go Back   mersenneforum.org > Great Internet Mersenne Prime Search > Hardware > GPU Computing > GpuOwl

Reply
 
Thread Tools
Old 2020-09-18, 23:42   #56
Xyzzy
 
Xyzzy's Avatar
 
"Mike"
Aug 2002

3×2,689 Posts
Default

4096MB seems to be fine. You don't get that much faster with more memory. Especially if you stall the program!

Xyzzy is offline   Reply With Quote
Old 2020-09-19, 04:19   #57
petrw1
1976 Toyota Corona years forever!
 
petrw1's Avatar
 
"Wayne"
Nov 2006
Saskatchewan, Canada

10010000000112 Posts
Default YAY... and Thanks ... and FAST!!!

Its running and it's a lot faster than a CPU.

A 6.7566 GhzDay P-1 in under 30 minutes with a P100 GPU

This would take 1 core of my 7820X 18 hours.
All 8 cores of my CPU could do just over 10 per day; this GPU could do almost 50 per day.

Observation: I specified B1=1,500,000 B2=30,000,000
I got Stage 1=2,164,271; Stage 2=1,460,867 primes and 2,880 (classes???)

PS I added the commas for readability

Observation#2: If I leave off the ,2 at the end of this worktodo.txt line
B1=1500000,B2=30000000;PFactor=0,1,2,40371047,-1,74,2
I get the error

2020-09-19 04:21:44 colab 1 FFT: 128K 256:1:256 (0.00 bpw)
2020-09-19 04:21:44 colab FFT size too large for exponent (0.00 bits/word).
2020-09-19 04:21:44 colab Exiting because "FFT size too large"

Last fiddled with by petrw1 on 2020-09-19 at 04:27
petrw1 is offline   Reply With Quote
Old 2020-10-01, 23:39   #58
petrw1
1976 Toyota Corona years forever!
 
petrw1's Avatar
 
"Wayne"
Nov 2006
Saskatchewan, Canada

3·29·53 Posts
Default Why does it ignore worktodo lines?

2020-10-01 23:37:32 colab worktodo.txt line ignored: "B1=1500000,B2=30000000;PFactor=0,1,2,40382929,-1,74,2"


Thanks

Never mind, I got the new build which I understand no longer does P1 alone.

Last fiddled with by petrw1 on 2020-10-01 at 23:57
petrw1 is offline   Reply With Quote
Old 2020-10-02, 01:56   #59
moebius
 
moebius's Avatar
 
Jul 2009
Germany

10001001112 Posts
Default

Quote:
Originally Posted by petrw1 View Post
Never mind, I got the new build which I understand no longer does P1 alone.
https://mersenneforum.org/showpost.p...28&postcount=1
moebius is offline   Reply With Quote
Old 2020-10-02, 03:56   #60
kriesel
 
kriesel's Avatar
 
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest

712 Posts
Default

Quote:
Originally Posted by petrw1 View Post
2020-10-01 23:37:32 colab worktodo.txt line ignored: "B1=1500000,B2=30000000;PFactor=0,1,2,40382929,-1,74,2"

Thanks

Never mind, I got the new build which I understand no longer does P1 alone.
Gpuowl 7.0 is not ready yet, don't use it, per Mihai https://www.mersenneforum.org/showpo...0&postcount=44
kriesel is online now   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
gpuowl tuning M344587487 GpuOwl 14 2018-12-29 08:11
How to interface gpuOwl with PrimeNet preda PrimeNet 2 2017-10-07 21:32
runtime question yoyo YAFU 1 2015-01-08 07:07
runtime error when using redc ltd GMP-ECM 5 2009-10-30 13:09
ECM Runtime and F20 D. B. Staple Factoring 11 2007-12-12 16:52

All times are UTC. The time now is 02:41.

Fri Apr 23 02:41:00 UTC 2021 up 14 days, 21:21, 0 users, load averages: 2.10, 1.79, 1.75

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.