View Single Post
Old 2021-08-28, 22:06   #23
WraithX
 
WraithX's Avatar
 
Mar 2006

3×173 Posts
Default

Quote:
Originally Posted by henryzz View Post
Although with B1=20000 I still get:
Code:
echo "(2^499-1)/20959" | ./ecm -gpu -cgbn -gpucurves 3584 -sigma 3:1000 20000
GMP-ECM 7.0.5-dev [configured with GMP 6.2.99, --enable-asm-redc, --enable-gpu, --enable-assert, --enable-openmp] [ECM]
Input number is (2^499-1)/20959 (146 digits)
Using B1=20000, B2=3804582, sigma=3:1000-3:4583 (3584 curves)
CUDA error (702) occurred: the launch timed out and was terminated
While running cudaDeviceSynchronize()   (file cgbn_stage1.cu, line 731)
What happens if you specify 0 for B2? Like this:
Code:
echo "(2^499-1)/20959" | ./ecm -gpu -cgbn -gpucurves 3584 -sigma 3:1000 20000 0
WraithX is offline   Reply With Quote