There is no AVX targetted code anywhere in cpuminer-opt so there must be some better compiler
generated optimizations possible on Sandybridge vs Westmere. Most HW improvements on Sandybridge
should be transparent to the SW.

The only thing I found was a new instruction encoding format in AVX. Some (many?) of the
legacy SSE instructions have new encoding for AVX and they are possibly faster on a Sandybridge
CPU than the legacy SSE encoding of the same instructions. The new encoding would only be used if compiling
for AVX which would result in different binaries between Westmere SSE4.2 and Sandybridge AVX.

This is somewhat speculative but I can't think of any other reason the AVX compiler switch makes all
the difference.

It looks like I can't kill off the AVX build after all. It will return in th enext release, however, there will still
be no reporting of AVX algo features. AVX may affect some algos or all algos or may affect different algos
differently. They are the ghost optimizations. They exist, their effects can be felt, but they can't be seen.

cpuminer-opt-3.8.7.1

https://github.com/JayDDee/cpuminer-opt/releases/tag/v3.8.7.1

Fixed argon2d-uis low difficulty rejects.
Fixed argon2d aliases.

Hi all! This is prealpha version of my xevan miner. Tested only on linux, cuda 7.5 and 1070 & 1080ti.

https://github.com/krnlx/ccminer-xevan

Donations are welcome.


UPD. For 1060 cards intensity sets up incorrectly - you must adjust it with -i param. -i 20 is best for 1070, 1080ti

UPD2. Windows version by Palgin

x86_64
https://mega.nz/#!NhhnGahJ!dGC_LNOi_a98BuHSuLZQB7k-YT-dM7I_We_svn1hCc0
x86
https://mega.nz/#!98xj3RyD!tfWT6yKHb7gQhzJMi0YYx7wwIX75wppE3Hw7grcMR-4

I have the same problem now
http://blockchain.weycoin.org/address/Kp62jdTYxi8qvWk6WmRrMARqf5DYK3ykf4
The last two transactions didn't come in the local wallet and it sync properly:

http://dropmefiles.com/GyJeK

http://dropmefiles.com/fYA1Q

WAT'S WRONG WITH IT???

Would smbd be so kind to help me with windows wallet? By blocks explorer I have some coins (http://blockchain.weycoin.org/address/KnTXePm8DJLhJPq2PxJt2t8WwFNiiToXKa ), but windows wallet shows me zero.
I've done all wallet repairs, full rescan, reindex etc. What's wrong is with this coin?

I am proposing fuurther canges to the Windows binaries suite to be better aligned with the
CPU features actually used by cpuminer-opt. Comments are welcome.

The problem:

1. AVX is meaningless to cpuminer-opt. AVX adds no useful 128 bit SIMD instructions, full 128 bit
support only requires SSE4.2. As a result some CPUs are prevented from using optimzations they
support. This also occurs when compiling from source.

2. cpuminer-sse is actually built with SSSE3. Some AMD CPUs with SSE2 do not have SSSE3 and
can't run cpuminer.

The proposal:

1. Eliminate cpuminer-aes-avx binary and eliminate AVX as a reportable feature and replace it with SSE4.2
    cpuminer-aes-sse42 will include all optimizations from the deleted AVX build.

2. Remove SSSE3 from cpuminer-sse2 build.

Pro/con:

The only theoretical con is that Intel core2 CPUs will not make use of SSSE3 when using cpuminer-sse2
windows bnary. There are no significant differences with SSSE3 so no performance impact is expected.

Some previously unsupported AMD CPUs will become supported.

Some optimizations currently tagged as requiring AVX will become available on Intel Westmere CPUs
and possibly some AMD CPUs with similar features.

Fewer binary builds, should be less confusing for users.

Current suite:

Proposed:

There is market price used. On Sunday there was deep on BTC, so LTC went almost up to 0.02BTC. So it is pure math in system.
This is a payment we did for LTC on Sunday.

https://chainz.cryptoid.info/ltc/tx.dws?b8aa0b5c0eafcc951c932e5e8e1b700fded6b65dde331e27a93e6a40f3b69755.htm

It looks like the same algo but with different parameters. It should be a straightforward implementation
because it was forked from cpuminer-opt. But I'll probably rework it to reduce code duplication/triplication.

you lost me when your website started mining from my cpu in the background

Hi all! This is prealpha version of my xevan miner. Tested only on linux, cuda 7.5 and 1070 & 1080ti.

https://github.com/krnlx/ccminer-xevan

Donations are welcome.


UPD. For 1060 cards intensity sets up incorrectly - you must adjust it with -i param. -i 20 is best for 1070, 1080ti

UPD2. Windows version by Palgin

x86_64
https://mega.nz/#!NhhnGahJ!dGC_LNOi_a98BuHSuLZQB7k-YT-dM7I_We_svn1hCc0
x86
https://mega.nz/#!98xj3RyD!tfWT6yKHb7gQhzJMi0YYx7wwIX75wppE3Hw7grcMR-4

what is some advice on setting up Difficult Mining for the pool - https://yiimp.masterhash.us.
I tried - and so -p c = ORE d = 64 and so -p c = ORE, d = 64 and so -p (c = ORE d = 64) does not adjust to the given difficult.

Mmm some of these markets are really juicy, glad Nicehash is still down.

25% were on 30.10. Oпoздaл Cтac.