README
¶
Golang NanoPoW
NanoPoW is an implementation of the proof-of-work used by Nano. That supports CPU and GPU (currently only OpenCL).
Usage
func main() {
nanopow.GenerateWork([]byte{/** PREVIOUS HASH **/}, nanopow.V1BaseDifficult)
}
CPU
By default, we always uses CPU. If GPU is available, it will use CPU and GPU, combined.
GPU
By default, we don't support GPU. You need to enable it using the "build tags", when build use:
go build -tags cl
Currently the only available option is OpenCL ("cl" tag).
"Benchmarks"
I don't have an huge amount of data to compare and limited devices to test against. Some devices doesn't supports OpenCL. All times are using the V1 difficulty.
| Device | OS | CPU-Only | CPU + OpenCL |
|---|---|---|---|
| Samsung Galaxy S20+ | Android | ~9.62 seg | Untested |
| Blackberry KeyOne | Android | ~36.7 seg | Untested |
| R9 3900X + RX 5700XT | Windows | ~0.66 seg | ~0.27 seg |
Limitations
Support OpenGL, OpenGLES or Vulkan:
Currently we only support OpenCL, which is not natively supported by some devices. I have some plans to add some support for OpenGL, OpenGLES or Vulkan. Seems that Vulkan Compute, if possible, is the best solution since it's compatible with Windows, Linux and Android.
Support multi-GPU:
Currently only one GPU is supported, but it can be easily fixed, but I don't have a multi-GPU setup to be able to test. :(
Contributing
Pull requests are welcome.
License
Documentation
¶
Index ¶
Constants ¶
This section is empty.
Variables ¶
var ( ErrNotSupported = errors.New("that device don't support that type of work method") ErrNoDeviceAvailable = errors.New("no device found") ErrNoDefaultPoolAvailable = errors.New("no default pool found") )
var ( V1BaseDifficult = CalculateDifficulty(0) V2BaseDifficult = CalculateDifficulty(8) V2ReceiveDifficult = CalculateDifficulty(-8) )
Functions ¶
func CalculateDifficulty ¶
func NewWorkerGPU ¶
func NewWorkerGPU() (*clWorker, error)
func NewWorkerGPUThread ¶
Types ¶
type Context ¶
type Context struct {
// contains filtered or unexported fields
}
func NewContext ¶
func NewContext() *Context
type Pool ¶
type Pool struct {
Workers []WorkerGenerator
}
var DefaultWorkerPool *Pool // We don't use DefaultWorkerPool = newDefaultPool() because it slow down the init
func NewPool ¶
func NewPool(w ...WorkerGenerator) (p *Pool)
Source Files