GPU LL Testing FAQ - Page 12

Lorenzo · 2014-09-14, 17:57

Hello! Where i can see CudaLucas benchmark's for 100M exponent (ETA, ms)!? Very interested in the results for the GTX780.

TheMawn · 2014-09-14, 21:43

http://www.mersenne.ca/cudalucas.php

Lorenzo · 2014-09-14, 22:16

Quote:

Originally Posted by TheMawn

http://www.mersenne.ca/cudalucas.php

Thanks for the answer, but I'm looking for results for exponents greater than 332'192'831!

In this benchmark only results for max. 95'000'000!

LaurV · 2014-09-15, 03:43

For comparison, when I did this one on a Titan, the initial ETA was ~60 days. (It got much longer at the end because I was only working on it during the nights, in the hot season here, but this is not relevant for you).

You can make the calculus, considering Titan vs 780 relative speed, and exponents size (FFT) against your desired (FFT). They are somehow "linear" here this narrow range, you can use proportions

Lorenzo · 2014-09-15, 06:03

LaurV Thank you very much!!!

Primeinator · 2014-10-28, 08:00

Hello,

Quick question. I appear to be stuck trying to get CUDALucas to work.

I have downloaded CUDALucas and and two required .dll files for version 4.2 (Windows) but when I try to run CUDALucas.exe the following error: "The application was unable to start correctly (0xc00000ba). Click OK to close the application" is seen.

I probably did something wrong when downloading the cudart and cuffart 64_42_9.dll files. I used 7zip to open them as that seemed to be the required program. Any help you can provide would be appreciated. Thanks!

Kyle

Specs:
Windows 8
i7 3820
GT 620 (version 1 I believe)

flashjh · 2014-10-28, 18:12

Normally it will let you know that you're missing a .dll, so that's probably not it. Are your drivers up to date? Can you post a screen shot of the run attempt?

Primeinator · 2014-10-28, 22:56

Quote:

Originally Posted by flashjh

Normally it will let you know that you're missing a .dll, so that's probably not it. Are your drivers up to date? Can you post a screen shot of the run attempt?

I'm not sure if my drivers are up to date. How I check?

Thanks!

Primeinator · 2014-10-29, 19:35

Quote:

Originally Posted by Primeinator

I'm not sure if my drivers are up to date. How I check?

Thanks!

I figured out how to do this. Currently installing a new driver for the GPU.

Edit: I am still getting an error; however, it is now different than previously. This different error was obtained after moving the two .dll files and CUDALucas into a new folder I created and placed in Program Files (not x86 Program Files).

I guess I never saw instructions on what to do with the two .dll files once you download and unzip them. The pdf on post 1 only gives links for all the files. Do you put them anywhere specific? Do they have to be in the same folder as CUDALucas? Is there a website/pdf that explains this?

I have attached an image of the new run error.

Thanks

Primeinator · 2014-10-29, 19:58

This page http://sourceforge.net/p/cudalucas/code/37/tree/trunk/

says there are no files for 4.2 (maybe it is outdated in relationship to the pdf on post 1 which has files for 4.2 Windows?) so I deleted CUDALucas 4.2 and installed 4.1. I deleted the previous .dll files and installed the corresponding ones for version 4.1.

I now get this error.

Should I instead be downloading CUDA 3.2 / SM 1.3, which the PDF indicates is for "older" chips? I'm not sure exactly what counts as "old" in this case but my CPU is definitely nothing great.

legendarymudkip · 2014-10-29, 20:02

The dlls have to go in the cudalucas folder.

2014-09-15, 06:03	#126
Lorenzo Aug 2010 Republic of Belarus B2₁₆ Posts	LaurV Thank you very much!!! Last fiddled with by Lorenzo on 2014-09-15 at 06:04

2014-10-28, 08:00	#127
Primeinator "Kyle" Feb 2005 Somewhere near M52.. 396₁₆ Posts	Hello, Quick question. I appear to be stuck trying to get CUDALucas to work. I have downloaded CUDALucas and and two required .dll files for version 4.2 (Windows) but when I try to run CUDALucas.exe the following error: "The application was unable to start correctly (0xc00000ba). Click OK to close the application" is seen. I probably did something wrong when downloading the cudart and cuffart 64_42_9.dll files. I used 7zip to open them as that seemed to be the required program. Any help you can provide would be appreciated. Thanks! Kyle Specs: Windows 8 i7 3820 GT 620 (version 1 I believe) Last fiddled with by Primeinator on 2014-10-28 at 08:01

2014-10-29, 19:58	#131
Primeinator "Kyle" Feb 2005 Somewhere near M52.. 396₁₆ Posts	This page http://sourceforge.net/p/cudalucas/code/37/tree/trunk/ says there are no files for 4.2 (maybe it is outdated in relationship to the pdf on post 1 which has files for 4.2 Windows?) so I deleted CUDALucas 4.2 and installed 4.1. I deleted the previous .dll files and installed the corresponding ones for version 4.1. I now get this error. Should I instead be downloading CUDA 3.2 / SM 1.3, which the PDF indicates is for "older" chips? I'm not sure exactly what counts as "old" in this case but my CPU is definitely nothing great. Attached Thumbnails Last fiddled with by Primeinator on 2014-10-29 at 20:02

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2014-09-14, 17:57	#122
Lorenzo Aug 2010 Republic of Belarus 2×89 Posts	Hello! Where i can see CudaLucas benchmark's for 100M exponent (ETA, ms)!? Very interested in the results for the GTX780.

2014-09-14, 21:43	#123
TheMawn May 2013 East. Always East. 1727₁₀ Posts	http://www.mersenne.ca/cudalucas.php

2014-09-15, 03:43	#125
LaurV Romulan Interpreter "name field" Jun 2011 Thailand 10100000110011₂ Posts	For comparison, when I did this one on a Titan, the initial ETA was ~60 days. (It got much longer at the end because I was only working on it during the nights, in the hot season here, but this is not relevant for you). You can make the calculus, considering Titan vs 780 relative speed, and exponents size (FFT) against your desired (FFT). They are somehow "linear" here this narrow range, you can use proportions

2014-10-28, 18:12	#128
flashjh "Jerry" Nov 2011 Vancouver, WA 1,123 Posts	Normally it will let you know that you're missing a .dll, so that's probably not it. Are your drivers up to date? Can you post a screen shot of the run attempt?

2014-10-29, 20:02	#132
legendarymudkip Jun 2014 2³×3×5 Posts	The dlls have to go in the cudalucas folder.