Quote from: pikachunakapika on July 08, 2019, 10:01:21 PM

Quote from: itod on July 08, 2019, 07:22:40 PM

Quote from: pikachunakapika on July 08, 2019, 12:31:24 PM

Quote from: supika on July 08, 2019, 08:49:54 AM

Quote from: pikachunakapika on July 08, 2019, 05:01:34 AM

#80: 0xea1a5c66dcc11b5ad180
#85: 0x11720c4f018d51b8cebba8
#90: 0x2ce00bb2136a445c71e85bf
#95: It wasn't me
#100: Also not me

Nice. What software/script and what hardware did you used? What are the costs? Thanks!

Pollard kangaroo on gpu. No costs.

Just out of curiosity, implemented in C or Python? I see there is a discussion how many kangaroos is optimal, any conclusions from your side on this question?

C++. Single threaded 4 to 5 (but probably hardly matters). You increase your chances to hit a sweet-spot but spread speed over the kangaroos. So it compensates.
To parallelize: as many as needed. Ratio 1:1.

Thank you for sharing, very informative.