Thread: mtsieve
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Old 2021-01-11, 01:35   #489
Citrix
 
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Jun 2003

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Quote:
Originally Posted by rogue View Post
I have released 2.1.4. Here are the changes:

Code:
   framework:
      Fixed an issue with creating GPU kernels on OS X.

   srseive2cl:  new release
      Finally an OpenCL version of srsieve2.  srsieve2cl is at least 3x faster than srsieve2,
      On my GPU it is limited to about 5000 sequences due to GPU memory limitations.  I do not
      know what the limits are for other GPUs.  It will switch to the GPU at p>1e6.
On an older GPU, srsieve2cl struggles with 1000 sequences causing significant lag in the display. But that GPU is also much slower, so it isn't worth running on it.
I am getting a speed of 4kp/sec for 11 sequences from n=1M to 20M. Sr2sieve and srsieve2 are both significantly faster. Is this what is expected?
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