joblo, regarding compiling, is there anything up against replacing the windows compiles with "-march=<some march>" by compiles with just the extensions added (-msse2/-maes/-mavx/-mavx2) like nicehash does it for their compiles? would boil the resulting bins down to essentially 3 or 4 and the right one can easily be identified

cheers

for cryptonight the difference between a native amd compile and a generic "-maes -mavx" compile is minimal, like sub 10 H/s

for lyra2re the difference was (afaik) larger, however all other compiles packaged resulted in even worse performance

for zcoin the difference is not observable

as a conclusion best amd compile is native, and after that a generic with -m flags

yes i know there is no native compile, best compile for my fx and a6/a10 cpus was a generic compile (after native), every one of the intel compiles was slower than the generic one

you can compile with: "-maes -mavx", this results an a binary with sse2, aes and avx support (none of my amd cpus has avx2)

ill gladly test it

on a side note: benchmark of lyra2z was broken in ocminers miner and yours as well, are you planning on fixing it or just wait till mpt (or whatever the new zcoin algo is named) gets released?

I'll build one and pm you the link. It should be the same as corei7-avx or core-avx-i.

Thanks, those are the results I expected. Next release i will drop the btver1 build and recommend AMD users choose the Intel build
with the same features.

Read the readme, Sandybridge doesn't support avx2.

Hi, After several hours mining displays "Unauthorized worker".
After rebooting cpu-miner its all OK. I have AMD FX,  cpuminer-btver1 -a lyra2z -o stratum+tcp://xzc.suprnova.cc:5595 -u user.worker -p pass

I just defaulted to the gcc arch but I'm flexible. A case could also be made for going strictly by the best feature like is displayed
by the miner.

Using the Intel brand doesn't help with AMD users who are unfamiliar with them. The newer architectures have the best
feature in their name so AMD users can key on that (assuming the issue of compatibility and performance of Intel builds
on AMD CPUs is resolved).

I'm also considering dropping core-avx-i as their is no specifically targetted code for this arch. If there are any performance differences
over corei7-avx it's all from the compiler. I would like to hear if there are users with Ivybridge CPUs that get lower perfomance using
corei7-avx vs core-avx-i.

so this is default (no -t) run of joblo's miner on dual xeon e5-2690v3
48 threads

(pls don't mind *-3.4.5 folder name, it's a clean 3.4.
-t 12