Change Log ---------- v3.5.1 Bastion 9% faster with AES, benchkmark still not working. Worked around git automatically removing m4 directory. Fixed occasional compile error in algo-gate.h. v3.5.0 Fixed blakecoin and vanilla increasing rejects with number of threads. Removed support for SSE2 Groestl functions. SSE2 groestl remains available in v3.4.12 and the legacy branch. It is no longer necessary to specify stratum+tcp:// in the url, it is assumed and is the only supported protocol. v3.4.12 lyra2z (zcoin) modified for blocks after 8192 fixed scryptjane to support various N factors v3.4.11 groestl algo AES optimized +200% myr-gr algo AES optimized +100% v3.4.10 xevan AES optimized +35% v3.4.9 fixed zr5, broken in v3.4.8 added xevan algo (Bitsend, BSD) with 10% improvement added lyra2zoin (Zoin, ZOI) fully optimized but YMMV v3.4.8 added zcoin support, optimized for AVX2 but no increase in performance fixed API display of diff for cryptonight --show-diff is now the default, use "--hide-diff" to disable cleaned up some cpuminer-multi artifacts v3.4.7 fixed benchmark, except for x11evo added CPU temperature to share submission report (Linux only) v3.4.6 For users: - cryptolight algo is now supported with AES optimizations - display format changed for share submissions - colour keyed "Accepted" or "Rejected" status. - reject count and rate displayed when share is rejected. For developers: - code restructuring for detecting new work - cleaned up detection and handling of new work - removed call to stratum_gen_work from niner_thread. - eliminated gen_work_now gate function. - renamed gate function init_nonce to get_new_work. - renamed gate function alloc_scratchbuf to miner_thread_init, removed all scracthbuf references from miner_thread and moved implementation to the local algo files of those algos that need it. - moved most gate targets from algo-gate.c to cpu-miner.c removing most mining related code from algo-gate-api.c. v3.4.5 fixed stale share rejects mining cryptonight at Nicehash fixed compile error on Westmere CPUs v3.4.4 fixed compile errors on Westmere CPUs, this is an interim fix that will compile without AES on Westmere added support for cryptonight at Nicehash, some rejects may be produced at Nicehash only. v3.4.3 imported optimized m7m, +42% v3.4.2 added veltor algo tweaked lyra2 AVX/AVX2 code for small improvement. v3.4.1 big AVX2 optmizations for lyra2 +35%, lyra2v2 +11%, AVX also faster fixed hmq1725 v3.4.0 fixed Windows compile error introduced in v3.3.9 fixed x11gost, broken in v3.3.7 AVX2 optimizations improving many algos: - Lyra2RE +3% - Lyra2REv2 +19% - x11gost (sib) +6% - x11evo +2.4% - c11 +6.9% - x11 +5% - x13 +5% - x14 +3.6% - x15 +2.4% - x17 +2.8% - qubit +8.4% Compile Instructions -------------------- Building on linux prerequisites: It is assumed users know how to install packages on their system and be able to compile standard source packages. This is basic Linux and beyond the scope of cpuminer-opt. Make sure you have the basic development packages installed. Here is a good start: http://askubuntu.com/questions/457526/how-to-install-cpuminer-in-ubuntu Install any additional dependencies needed by cpuminer-opt. The list below are some of the ones that may not be in the default install and need to be installed manually. There may be others, read the error messages they will give a clue as to the missing package. The folliwing command should install everything you need on Debian based packages: sudo apt-get install build-essential libssl-dev libcurl4-openssl-dev libjansson-dev libgmp-dev automake Building on Linux, see below for Windows. Dependencies build-essential (for Ubuntu, Development Tools package group on Fedora) automake libjansson-dev libgmp-dev libcurl4-openssl-dev libssl-dev pthreads zlib tar xvzf [file.tar.gz] cd [file] Run build.sh to build on Linux or execute the following commands. ./autogen.sh CFLAGS="-O3 -march=native -Wall" CXXFLAGS="$CFLAGS -std=gnu++11" ./configure --with-curl make Start mining. ./cpuminer -a algo ... Building on Windows prerequisites: msys mingw_w64 Visual C++ redistributable 2008 X64 openssl, not sure about this Install msys and mingw_w64, only needed once. Unpack msys into C:\msys or your preferred directory. Install mingw__w64 from win-builds. Follow instructions, check "msys or cygwin" and "x86_64" and accept default existing msys instalation. Open a msys shell by double clicking on msys.bat. Note that msys shell uses linux syntax for file specifications, "C:\" is mounted at "/c/". Add mingw bin directory to PATH variable PATH="/c/msys/opt/windows_64/bin/:$PATH" Instalation complete, compile cpuminer-opt Unpack cpuminer-opt source files using tar from msys shell, or using 7zip or similar Windows program. In msys shell cd to miner directory. cd /c/path/to/cpuminer-opt Run winbuild.sh to build on Windows or execute the following commands. ./autogen.sh CFLAGS="-O3 -march=native -Wall" CXXFLAGS="$CFLAGS -std=gnu++11 -fpermissive" ./configure --with-curl make The following tips may be useful for older AMD CPUs. Some users with AMD CPUs without AES_NI have reported problems compiling with build.sh or "-march=native". Problems have included compile errors and poor performance. These users are recommended to compile manually specifying "-march=btver1" on the configure command line. Support for even older x86_64 without AES_NI or SSE2 is not availble.