cpuminer-opt-3.19.7

#369 Fixed time limited mining, --time-limit.
Fixed a potential compile error when using optimization below -O3.

cpuminer-opt-3.19.6

#363 Fixed a stratum bug where the first job may be ignored delaying start of hashing.

Fixed handling of nonce exhaust when hashing a fast algo with extranonce disabled.

Small optimization to Shavite.

cpuminer-opt-3.19.5

Enhanced stratum-keepalive preemptively resets the stratum connection
before the server to avoid lost shares.

Added build-msys2.sh scrypt for easier compiling on Windows, see Wiki for details.

X16RT: eliminate unnecessary recalculations of the hash order.

Fix a few compiler warnings.

Fixed log colour error when a block is solved.

cpuminer-opt-3.19.4

#359: Fix verthash memory allocation for non-hugepages, broken in v3.19.3.

New option stratum-keepalive prevents stratum timeouts when no shares are
submitted for several minutes due to high difficulty.

Fixed a bug displaying optimizations for some algos.

cpuminer-opt-3.19.3

Linux: Faster verthash (+25%), scryptn2 (+2%) when huge pages are available.
Small speed up for Hamsi AVX2 & AVX512, Keccak AVX512.

cpuminer-opt-3.19.2

Fixed log displaying incorrect memory usage for scrypt, broken in v3.19.1.

Reduce log noise when replies to submitted shares are lost due to stratum errors.

Fugue prehash optimization for X16r family AVX2 & AVX512.

Small speed improvement for Hamsi AVX2 & AVX512.

Win: With CPU groups enabled the number of CPUs displayed in the ASCII art
affinity map is the number of CPUs in a CPU group, was number of CPUs up to 64.

cpuminer-opt-3.19.1

Changes to Windows binaries package:

• builds for CPUs with AVX or lower have CPU groups disabled,
• zen3 build renamed to avx2-sha-vaes to support Alderlake as well as Zen3,
• zen build renamed to avx2-sha, supports Zen1 & Zen2,
• avx512-sha build removed, Rocketlake CPUs can use avx512-sha-vaes,
• see README.txt for compatibility details.

Fixed a few compiler warnings that are new in GCC 11.
Other minor fixes.

cpuminer-opt-3.19.0

Windows binaries for CPUs with AVX2 and newer are now built with support for CPU groups, requires Windows 7.

Changes to cpu-affinity:

• PR#346: Fixed incorrect CPU affinity on Windows built for CPU groups,
• added support for CPU affinity for up to 256 threads or CPUs,
• streamlined code for more efficient initialization of miner threads,
• precise affining of each miner thread to a specific CPU,
• added an option to disable CPU affinity with "--cpu-affinity 0"

Faster sha256t with AVX512 & AVX2.

Added stratum error count to stats log, reported only when non-zero.

Note: Windows binaries have been rebuilt for CPUs with AVX, SSE* due to problems with CPU groups.
cpuminer-opt-3.19.0-windows2.zip contains rebuilt binaries without support for CPU groups for those builds.
There are no source code changes and no changes to other builds.

cpuminer-opt-3.18.2

Issue #342, fixed Groestl AES on Windows, broken in v3.18.0.

AVX512 for sha256d.

SSE42 and AVX may now be displayed as mining features at startup.
This is hard coded for each algo, and is only implemented for scrypt
at this time as it is the only algo with significant performance differences
with those features.

Fixed an issue where a high hashrate algo could cause excessive invalid hash
rate log reports when starting up in benchmark mode.

cpuminer-opt-3.18.1

More speed for scrypt:

• additional scryptn2 optimizations for all CPU architectures,
• AVX2 is now used by default on CPUS with SHA but not AVX512,
• scrypt:1024 performance lost in v3.18.0 is restored,
• AVX512 & AVX2 improvements to scrypt:1024.

Big speedup for SwiFFTx AVX2 & SSE4.1: x22i +55%, x25x +22%.

Issue #337: fixed a problem that could display negative stats values in the first summary report if the
report was forced prematurely due to a stratum diff change. The stats will still be invalid but should
display zeros.