libera #monero-pow

23 Aug 2023

Monero's Proof of Work algorithm (RandomX) and related topics. Use #p2pool-log and #p2pool-mini for P2Pool discussions. Anti-spam active: PM hyc for voice.

• 10:22
  sech1
  hyc tevador/RandomX #273 - it looks like that we didn't save FP rounding mode in Windows binaries. I added CI tests and discovered it.
• 14:46
  hyc
  I dunno how to review the yaml stuff but the other two look ok to me
• 14:48
  sech1
  you can check syntax at yamllint.com
• 14:48
  sech1
  It's just a sequence of commands for Github actions
• 14:51
  hyc
  anyway, isn't fpu state per-thread already? failing to save/restore it isn't going to affect most users because they're only running a miner anyway
• 14:51
  sech1
  it's per thread
• 14:51
  sech1
  all incoming Monero blocks are also verified, so RandomX hash is calculated somewhere (not sure which thread)
• 14:52
  hyc
  yeah but monerod doesn't use floating point for anything else
• 14:52
  hyc
  or nothing consensus related anyway
• 14:52
  sech1
  yes
• 14:52
  sech1
  but someone who uses RandomX lib can get unexpected results
• 14:53
  hyc
  right. just seems unlikely they're doing anything besides mining.
• 14:58
  sech1
  This PR also runs tests on s390x architecture (big endian), among other things. Good to know it's not broken :)
• 14:59
  hyc
  nice... it's so annoying that so much software is written with implicit little-endian dependency these days. like authors aren't even aware
• 15:02
  sech1
  I tried it on p2pool and it's broken everywhere on s390x :D