dear John,
Thanks for the update. Just curious, what's the time tradeoff for that 20x
memory? This optimization becomes difficult, especially on GPU, over Cuckoo 30,
correct?
- Igno
-------- Original Message --------
Subject: Re: [Mimblewimble] Status and how to help
Local Time: April 18, 2017 11:51 AM
UTC Time: April 18, 2017 6:51 PM
From: [email protected]
To: Ignotus Peverell <[email protected]>
[email protected] <[email protected]>
dear Ignotus/all,
> Some decent mining software that can handle multiple GPUs.
There has been some significatn development in Cuckoo Cycle.
Xenoncat, the anonymous Zcash miner contest winner, recently
claimed a $5000 CPU speedup bounty, by using 20x more memory
to bucketsort the edge->endpoint map and thereby avoid the high latency
random memory accesses.
Basically, with enough memory available, Cuckoo Cycle is transformed
from a latency bound PoW into a bandwidth bound one.
I'm in the process of writing my own version of his solver, after which
I will port that to CUDA. Then the next challenge will be to extract the
maximum performance out of the GPU solver. An OpenCL solver will
have to come later...
regards,
-John
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