Todd, I don't see SHA-512 CPACF number in the paper that you reference. I can't find any benchmarks for z13 CPACF.
For non-specialized hardware, (like GPUs): https://en.bitcoin.it/wiki/Non-specialized_hardware_comparison It looks here like an AMD Radeon 6970 will do around 400 million SHA-256 hashes per second. These go for around $700. I see all kinds of CPUs and GPUs listed here, even some Power chips. If we can find a z13 benchmark, we should add it here. For state of the art specialized ASICs, see: https://en.bitcoin.it/wiki/Mining_hardware_comparison If I read this correctly, the "AntMiner 9" does 14 trillion double SHA-256 hashes per second. I believe that Bitcoin mining involves finding a nonce (random number) that solves to a given hash on a small piece of data. So block sizes are always small. Kirk Wolf Dovetailed Technologies http://dovetail.com ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
