mersenneforum.org  

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

Reply
 
Thread Tools
Old 2018-08-26, 01:10   #1
xx005fs
 
"Eric"
Jan 2018
USA

211 Posts
Default OpenCL GPU P-1 Factoring and ECM Factoring

Is there any chance that the CUDA port of P-1 Factoring and ECM would be rewritten into OpenCL versions just yet? Or is there a beta version of the software that is already developed but not fully ready yet? Considering that traditionally AMD GPUs are good at general purpose compute and has higher memory bandwidth than Nvidia counterparts wouldn't it be on par or even faster than Nvidia GPUs doing the same task?
xx005fs is offline   Reply With Quote
Old 2018-08-27, 16:38   #2
kriesel
 
kriesel's Avatar
 
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest

22·1,193 Posts
Default

Quote:
Originally Posted by xx005fs View Post
Is there any chance that the CUDA port of P-1 Factoring and ECM would be rewritten into OpenCL versions just yet? Or is there a beta version of the software that is already developed but not fully ready yet? Considering that traditionally AMD GPUs are good at general purpose compute and has higher memory bandwidth than Nvidia counterparts wouldn't it be on par or even faster than Nvidia GPUs doing the same task?
Speaking only for myself, the CUDA P-1 program needs a lot of work first before porting. (I've spent gpu-years probing it for bugs and capability limits, with further to go.)
ECM code for gpus is limited to bit lengths much too short to be of use to GIMPS, and ECM is not effective for exponents of relevance to the current GIMPS wavefronts.

See http://www.mersenneforum.org/showthread.php?t=23371 and http://www.mersenneforum.org/forumdisplay.php?f=154
I know of no OpenCL P-1 factoring implementation.
I know of no OpenCL ECM implementation.
I know of no CUDA implementation of the PRP test that will compile for and run on Windows.
If you do, please PM or post where to find any such.
kriesel is online now   Reply With Quote
Old 2018-08-27, 19:18   #3
xx005fs
 
"Eric"
Jan 2018
USA

211 Posts
Default

Got it.
xx005fs is offline   Reply With Quote
Old 2018-10-27, 14:49   #4
kriesel
 
kriesel's Avatar
 
"TF79LL86GIMPS96gpu17"
Mar 2017
US midwest

22·1,193 Posts
Default PRP-1

See also Preda's recent addition of P-1 to gpuOwL, with stage 1 up front and stage 2 along the way during the PRP computation.
kriesel is online now   Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
P-1 Factoring Unregistered Information & Answers 2 2013-05-19 15:18
PS3 factoring? Uncwilly GPU Computing 52 2011-06-11 03:12
Factoring? edorajh Lounge 7 2004-07-04 17:15
Factoring above 79,200,000 ET_ Factoring 2 2004-01-13 22:56
Factoring 40M to 41M to 2^60 norbert Lone Mersenne Hunters 9 2003-04-07 14:22

All times are UTC. The time now is 02:00.

Sun Dec 6 02:00:14 UTC 2020 up 2 days, 22:11, 0 users, load averages: 2.66, 2.75, 2.73

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, 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.