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Forum: GpuOwl 2020-01-06, 03:03
Replies: 22
Views: 6,494
Posted By axn
I have checked one of them. It took about 1 hr 6...

I have checked one of them. It took about 1 hr 6 minutes on a P100 (colab). For comparison my i3-8100 (4 real cores) would take 3x that time.


fft is just the length. Once you run -cufftbench...
Forum: GpuOwl 2020-01-05, 16:19
Replies: 22
Views: 6,494
Posted By axn
Here is cudaWagstaff v0.03 (adapted from...

Here is cudaWagstaff v0.03 (adapted from cudalucas)
This is a cut down version with lot of the non-critical functionalities missing. For comparable FFT it is about 5% slower than CUDALucas (on my...
Forum: GpuOwl 2019-12-01, 03:06
Replies: 22
Views: 6,494
Posted By axn
Crandall & Fagin...

Crandall & Fagin (http://www.faginfamily.net/barry/Papers/Discrete%20Weighted%20Transforms.pdf) says that you can use either, and they explicitly use the minus version (eg:- 5.3).

Indeed it works...
Forum: GpuOwl 2019-11-29, 05:01
Replies: 22
Views: 6,494
Posted By axn
My adventures in understanding DWT

Using Pari/GP for prototyping:

The functions. Note, pari vectors start with index 1.
weight(v,w,N)=vector( N, i, v[i]*w[i] ); \\ apply a weight w to signal v
unweight(v,w,N)=vector( N, i,...
Forum: GpuOwl 2019-11-22, 07:30
Replies: 22
Views: 6,494
Posted By axn
Forked the Wagstaff discussion into a separate...

Forked the Wagstaff discussion into a separate thread (copy - original posts are still there).
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