Posts by koschi

1) (Message 5264)
Posted 17 Mar 2017 by koschi
Post:
Btw, not exactly AVX related, but since we have everyone on board already.
The news on http://www.numberworld.org/y-cruncher/ says Ryzen can run FMA4, even though the FMA4 feature flag is not set. I tried to run www.boincunited.org/opt_apps/period_search_10210_x86_64-pc-linux-gnu__fma4.tar.bz2, but it failed within few seconds, SIGILL: illegal instruction.

Any other way to confirm this?

I've seen you using GCC earlier somewhere, can you give 6.3 a try, maybe with -march=znver1 and -O3?
Have you tried to build with Clang?
As per the Phoronix results, it can make a substantial difference in some apps.
http://www.phoronix.com/scan.php?page=article&item=gcc-clang-ryzen
2) (Message 5255)
Posted 15 Mar 2017 by koschi
Post:
AMD powered miracles, nothing less :-D
3) (Message 5248)
Posted 14 Mar 2017 by koschi
Post:
http://asteroidsathome.net/boinc/results.php?hostid=312297

Might have to wait for some more WUs to complete, but so far it doesn't seem like an improvement over SSE3.
4) (Message 5247)
Posted 14 Mar 2017 by koschi
Post:
Thanks! That one is working, WUs are running 2 minutes already, results in 2-3 hours...

Where is the difference, which flags did you use / skip in this one?
5) (Message 5238)
Posted 13 Mar 2017 by koschi
Post:
Thanks for the compile, unfortunately it seems not to work yet :-(

http://asteroidsathome.net/boinc/result.php?resultid=148531759

btw, the link works fine with wget or Chromium, no need for MS to be involved ;-)