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README.md
ethash
Introduction
A pure-Nim implementation of Ethash, the Ethereum proof of work
Implementation is based on the spec revision 23 (2017-08-03).
Mining
An unoptimized mining CPU backend is available through the compile-time flag -d:ethash_mining.
It requires compilation through the C++ backend.
Optimizations
For maximum speed, compile Ethash with -d:release -d:march_native -d:openmp.
This will compile Ethash in Nim release mode, with all supported CPU extensions (especially AVX2) and with OpenMP multiprocessing. On MacOS, OpenMP requires installing GCC-7 and can be done through Homebrew.
Original implementation
Original Ethereum implementation is available here.
Warning ⚠ - License notice: the original implementation is under GPLv3 or LGPLv3 and must not be used in this project.
License
Licensed under both of the following:
- Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
- MIT license: LICENSE-MIT or http://opensource.org/licenses/MIT