Weekend GT730 Project

[Mark Rose]

Originally Posted by masser

I think I've settled on:

GPUSievePrimes=87400
GPUSieveSize=128
GPUSieveProcessSize=8

The GhzD/D increased to about 58.6 from 57.6 with the defaults.

Should I try changing any of the other options in the mfaktc.ini file?

There's not much point if you're using GPU sieving.

[LaurV]

@masser: you are doing perfectly! don't pay attention to Gordon, since he found a mersenne prime, nobody can talk to him anymore...

[masser]

Originally Posted by masser

Now, I would like to complete the following four tasks:

3. Tune cudalucas for optimal performance

Any help or insights would be greatly appreciated.

I ran "CUDALucas -threadbench 2000 3000 5 10" and I see

fft = 2304K, min time = 21.5020 ms, square: 256, splice: 512

in the output. Does this mean I should change the default Threads setting (Threads=256 128) in CUDALucas.ini to

Threads=256 512

? Again, any help/comments are appreciated.

[kladner]

This page, and the thread in general might be helpful:
http://www.mersenneforum.org/showthr...t=19647&page=4

[storm5510]

Assignment: Factor=134473637,71,72
Running Time: 1h 28m 56.640s

I've never messed with the mfaktc.ini file beyond adjusting the way it prints to the screen. It wrapped to a new line. With all due respect. I can run this same exponent in 27 minutes (GTX-750Ti). Perhaps putting the defaults back and leaving it as is may be in order.

[VBCurtis]

storm:
What does your card's timing have to do with his card's performance?

[storm5510]

Originally Posted by VBCurtis

storm:
What does your card's timing have to do with his card's performance?

Nothing at all...