mfakto: an OpenCL program for Mersenne prefactoring - Page 43

kracker · 2012-05-31, 19:14

0.11 is much, much, much better here... thanks :)

on 0.10p1, one LL TF test took about ~8 hours, with 0.11 it takes about ~4.5 hours

Bdot · 2012-06-01, 20:35

Quote:

Originally Posted by kracker

0.11 is much, much, much better here... thanks :)

on 0.10p1, one LL TF test took about ~8 hours, with 0.11 it takes about ~4.5 hours

Thanks

what hw are you running? I have not seen an almost-doubling in my tests ... Did you change anything else?

Anyway, it's nice to hear it's working well.

kracker · 2012-06-03, 19:22

Quote:

Originally Posted by Bdot

Thanks

what hw are you running? I have not seen an almost-doubling in my tests ... Did you change anything else?

Anyway, it's nice to hear it's working well.

http://www.mersenneforum.org/showpos...&postcount=307
http://www.newegg.com/Product/Produc...82E16819103942

P.S.: Using 64k binary

dbaugh · 2012-06-06, 09:35

I am using an i7-3960x with a Radeon HD 7970. mfakto compiles and passes both the self test and the two suggested test worktodo values. When I give it something that takes more that a couple of minutes, I lose my screen (all monitor timeouts are disabled). Sometimes it gives me a messed up screen first. I can only get it back by doing a power on reset. Is there a way to force the system (Win7) to use the onchip graphics and leave the video card for opencl work?

Thanks,

David

axn · 2012-06-06, 12:01

Quote:

Originally Posted by dbaugh

I am using an i7-3960x with a Radeon HD 7970. mfakto compiles and passes both the self test and the two suggested test worktodo values. When I give it something that takes more that a couple of minutes, I lose my screen (all monitor timeouts are disabled). Sometimes it gives me a messed up screen first. I can only get it back by doing a power on reset. Is there a way to force the system (Win7) to use the onchip graphics and leave the video card for opencl work?

Thanks,

David

Ummm... Connect the monitor to the IGP output?

KyleAskine · 2012-06-06, 12:21

Quote:

Originally Posted by dbaugh

I am using an i7-3960x with a Radeon HD 7970. mfakto compiles and passes both the self test and the two suggested test worktodo values. When I give it something that takes more that a couple of minutes, I lose my screen (all monitor timeouts are disabled). Sometimes it gives me a messed up screen first. I can only get it back by doing a power on reset. Is there a way to force the system (Win7) to use the onchip graphics and leave the video card for opencl work?

Thanks,

David

This simply shouldn't happen. What do you mean by 'all monitor timeouts are disbaled'. I sounds to me like there are either driver issues, or you have a faulty video card and the stress simply shows the bad hardware.

fivemack · 2012-06-06, 12:34

Quote:

Originally Posted by dbaugh

I am using an i7-3960x ... is there a way to force the system (Win7) to use the onchip graphics and leave the video card for opencl work?

The i7-3960x does not have on-chip graphics, so that's difficult. Do you have another PCIe slot that you could put a cheap low-end Radeon in?

dbaugh · 2012-06-06, 19:57

fivemack is on to something. It looks like the first thing I need to do to force the use of on-chip graphics is use a processor that has it. By "all monitor timeouts disabled", I meant under power settings, among other places, I chose to never turn off the display. I'll give new drivers (if they have come out in the last month) a try and a low-end buddy card (probably my best shot). I sure hope my card is not bad. I'll need to find a non-mfakto way to test it.

Many thanks,

David

Dubslow · 2012-06-06, 20:48

God, I hate the designations on the SB-E... I saw the '3' and without thinking assumed it was Ivy Bridge. Good catch fivemack. Damn you and your stupid names, Intel.

kracker · 2012-06-06, 23:15

Quote:

Originally Posted by Dubslow

God, I hate the designations on the SB-E... I saw the '3' and without thinking assumed it was Ivy Bridge. Good catch fivemack. Damn you and your stupid names, Intel.

+1

Me too. Those are damned confusing.

nucleon · 2012-06-07, 14:36

i7-39xx - hex core +HT LGA2011
i7-38xx - quad core +HT LGA2011
i7-37xx - quad core +HT LGA1155
i7-35xx - quad core no HT LGA1155

LGA2011 - no inbuilt GPU
LGA1155 - on die GPU

It does have some sense to it.

-- Craig

2012-06-06, 09:35	#466
dbaugh Aug 2005 2×59 Posts	on chip graphics I am using an i7-3960x with a Radeon HD 7970. mfakto compiles and passes both the self test and the two suggested test worktodo values. When I give it something that takes more that a couple of minutes, I lose my screen (all monitor timeouts are disabled). Sometimes it gives me a messed up screen first. I can only get it back by doing a power on reset. Is there a way to force the system (Win7) to use the onchip graphics and leave the video card for opencl work? Thanks, David

2012-06-06, 19:57	#470
dbaugh Aug 2005 2·59 Posts	on-chip graphics fivemack is on to something. It looks like the first thing I need to do to force the use of on-chip graphics is use a processor that has it. By "all monitor timeouts disabled", I meant under power settings, among other places, I chose to never turn off the display. I'll give new drivers (if they have come out in the last month) a try and a low-end buddy card (probably my best shot). I sure hope my card is not bad. I'll need to find a non-mfakto way to test it. Many thanks, David

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
gpuOwL: an OpenCL program for Mersenne primality testing	preda	GpuOwl	2719	2021-08-05 22:43
mfaktc: a CUDA program for Mersenne prefactoring	TheJudger	GPU Computing	3497	2021-06-05 12:27
LL with OpenCL	msft	GPU Computing	433	2019-06-23 21:11
OpenCL for FPGAs	TObject	GPU Computing	2	2013-10-12 21:09
Program to TF Mersenne numbers with more than 1 sextillion digits?	Stargate38	Factoring	24	2011-11-03 00:34

2012-05-31, 19:14	#463
kracker "Mr. Meeseeks" Jan 2012 California, USA 100001111000₂ Posts	0.11 is much, much, much better here... thanks :) on 0.10p1, one LL TF test took about ~8 hours, with 0.11 it takes about ~4.5 hours

2012-06-06, 20:48	#471
Dubslow Basketry That Evening! "Bunslow the Bold" Jun 2011 40<A<43 -89<O<-88 1110000110101₂ Posts	God, I hate the designations on the SB-E... I saw the '3' and without thinking assumed it was Ivy Bridge. Good catch fivemack. Damn you and your stupid names, Intel.

2012-06-07, 14:36	#473
nucleon Mar 2003 Melbourne 5·103 Posts	i7-39xx - hex core +HT LGA2011 i7-38xx - quad core +HT LGA2011 i7-37xx - quad core +HT LGA1155 i7-35xx - quad core no HT LGA1155 LGA2011 - no inbuilt GPU LGA1155 - on die GPU It does have some sense to it. -- Craig