CUDALucas (a.k.a. MaclucasFFTW/CUDA 2.3/CUFFTW)

[ZFR]

Originally Posted by kriesel

See https://mersenneforum.org/showpost.p...postcount=2591
and https://mersenneforum.org/showpost.p...postcount=2608

Ah, so this is why threadbench has the option of skipping thread value 1024.

I don't think mine has any anomalies, but I'm not sure if I'm reading the threads benchmarking correctly

[kriesel]

Originally Posted by ZFR

I don't think mine has any anomalies, but I'm not sure if I'm reading the threads benchmarking correctly

Those files look ok to me. Try some assigned DC and see if you get matching final residues. And maybe first some shorter runs on known primes with tabulated interim residues.
https://www.mersenneforum.org/showpo...82&postcount=4

[LaurV]

we need now two bytes to store the page numbers of this thread....

[kriesel]

Laurv you're at least a dozen posts late. What's wrong with a Fermat number of pages?

[LaurV]

Nope, not late, there's no page zero, so pages 1 to 256 can be stored in one byte
Nothing wrong with a Fermat prime number of pages, it just didn't cross my mind... I am thinking in binary, more than I am a number theorist.

[kriesel]

Originally Posted by LaurV

we need now two bytes to store the page numbers of this thread....

If you meant pagecount-1, why isn't it there?

[kriesel]

Originally Posted by LaurV

Nope, not late, there's no page zero, so pages 1 to 256 can be stored in one byte.

There's no known lossless data compression capable of even storing your comment from which that quote comes, in one byte, much less a page or multiple pages of this thread. (I get you meant page numbering, but that's not what you wrote there. And the page numbering is not zero-based.)

[S485122]

Originally Posted by kriesel

...
the page numbering is not zero-based.)

But to store the number you can start at 0 if a thread exists only if there is a post.)

Jacob

[kriesel]

Originally Posted by S485122

But to store the number you can start at 0 if a thread exists only if there is a post.)

Jacob

Could. But that's not what the forum DOES. And the code to offset count would occupy space.

[kriesel]

Originally Posted by S485122

But to store the number you can start at 0 if a thread exists only if there is a post.)

Jacob

Could. But that's not what the forum DOES. And the code to offset count would occupy space.

https://www.amazon.com/Engineer-Not-Arguing-Funny-Engineering/dp/B07KW1YRK3/ No I don't have the tshirt. Yet.
https://www.pinterest.com/pin/641763015624423294/

[tServo]

While examining the CudaLucas source, I noticed that it has the ability to display the relative amount of time spent in the 4 main routines while running a benckmark. Can someone enlighten me how to do thi?. It doesn't seem to be in any documentation.
TIA