NushyPool Miner

npminer is the NushyPool GPU miner. It is a Rust-based miner with CUDA and OpenCL backends and currently supports these algorithms:

• memhash for Vecno Fondation
• cryptix for Cryptix Network
• hoohash for Hoosat Network

It supports standard Stratum pool mining and solo gRPC mining.

Key Features

• Low CPU usage during normal GPU mining.
• 0% devfee when mining on nushypool.com.
• Supports solo mining directly against a blockchain node over gRPC.
• Supports Stratum mining on any compatible pool.
• Supports Linux, Windows, HiveOS, and mmpOS.
• Supports NVIDIA GPUs through CUDA and AMD GPUs through OpenCL.
• Supports multiple algorithms in one miner: memhash, hoohash, and cryptix.
• Includes autotune with cache reuse to keep tuned launch settings across restarts.
• Supports multi-GPU rigs with simple per-GPU selection via --devices.
• Includes watchdog-based worker supervision and recovery-oriented startup checks.

Caution

Notes:

• The latest drivers are required to achieve optimal hashrate performance.
• OpenCL (AMD) support is still experimental and optimal performance is not guaranteed.
• Hoohash: Support is experimental, performance may vary, and active development is ongoing.

npminer

Main executable:

• Linux (inc. HiveOS/mmpOS): npminer
• Windows: npminer.exe

Typical pool mining command:

./npminer -a memhash -o stratum+tcp://POOL:PORT -u vecno:YOUR_WALLET -w worker1

Typical solo gRPC mining command:

./npminer -a hoohash --client-address 127.0.0.1 --port 7110 -u hoosat:YOUR_WALLET

Useful GPU selection commands:

./npminer --list-gpus
./npminer -a memhash -o stratum+tcp://POOL:PORT -u cryptix:YOUR_WALLET -d 0,2

-d, --devices uses the GPU Index values printed by --list-gpus.

It does not use Bus ID.

Example --list-gpus output:

========================================
 Index | Bus ID | Name
========================================
 0     | 2      | GeForce RTX 3080 Ti
 1     | 3      | GeForce RTX 3080 Ti
 2     | 7      | Radeon RX 6800 XT
========================================

In that example:

• -d 0 means the first GPU
• -d 0,2 means the first and third GPUs
• -d 2 selects the GPU with Index = 2, not the GPU with Bus ID = 2

More examples:

./npminer -a memhash -o stratum+tcp://POOL:PORT -u vecno:YOUR_WALLET -d 0
./npminer -a memhash -o stratum+tcp://POOL:PORT -u vecno:YOUR_WALLET --devices 0,2,3
./npminer -a hoohash --client-address 127.0.0.1 --port 7110 -u hoosat:YOUR_WALLET -d 1

If --devices is not provided, all detected GPUs are used.

Supported Platforms and Hardware

Primary targets:

• NVIDIA GPUs through CUDA
• AMD GPUs through OpenCL

Current backend coverage:

Backend	Vendor	Algorithms	OS
CUDA	NVIDIA	memhash, hoohash, cryptix	Windows, Linux, HiveOS, mmpOS
OpenCL	AMD	memhash, hoohash, cryptix	Windows, Linux, HiveOS, mmpOS

Notes:

• OpenCL is limited to one OpenCL platform per miner process.
• --opencl-platform can be used when the default OpenCL platform is not the one you want.
• NVIDIA OpenCL is intentionally not the primary path; NVIDIA cards are expected to use CUDA.
• --devices is the recommended end-user way to select GPUs. Use --cuda-device and --opencl-device only when backend-specific selection is required.

Help Output

Print the current CLI help with:

./npminer --help

Command Reference

The current supported npminer command-line options are:

General

• -h, --help Print help.
• -v, --version Print version.
• -a, --algo <memhash|hoohash|cryptix> Select algorithm explicitly.
• --mining-address <ADDRESS> Mining reward address.
• -u, --user <USER> Standard pool-style wallet field, for example vecno:... or vecno:....worker.
• --list-gpus Print the miner GPU inventory and exit.
• -d, --devices <LIST> Comma-separated GPU Index values from --list-gpus, not Bus ID.
• --reset-autotune Delete cached autotune state and force a fresh retune.

Stratum Pool Mining

• -o, --url <URL> Standard Stratum URL, for example stratum+tcp://host:port.
• -w, --worker <WORKER> Standard worker name.
• -p, --pass <PASSWORD> Standard worker password.

Legacy compatibility Stratum options are also supported:

• --stratum-server <HOST>
• --stratum-port <PORT>
• --stratum-worker <WORKER>
• --stratum-password <PASSWORD>

Solo gRPC Mining

• -s, --client-address <HOST> Blockchain node address for solo gRPC mining.
• --port <PORT> Blockchain node port.
• --testnet Use testnet defaults for solo gRPC mining.
• --mine-when-not-synced Continue mining even when the node reports not synced.

CUDA Options

• --cuda-disable Disable CUDA workers.
• --cuda-device <LIST> Backend-specific CUDA device list.
• --cuda-workload <VALUE> CUDA workload ratio.
• --cuda-workload-absolute Treat CUDA workload as an absolute nonce count.
• --cuda-no-blocking-sync Disable blocking-sync mode and actively poll.
• --cuda-nonce-gen <lean|xoshiro> CUDA nonce generator.
• --cuda-lock-core-clocks <LIST> Optional GPU clock lock values.
• --cuda-lock-mem-clocks <LIST> Optional GPU memory clock lock values.
• --cuda-power-limits <LIST> Optional GPU power limits.

OpenCL Options

• --opencl-amd-disable Disable OpenCL AMD mining.
• --opencl-device <LIST> Backend-specific OpenCL device list on the selected platform.
• --opencl-platform <INDEX> Select one OpenCL platform.
• --opencl-workload <VALUE> OpenCL workload ratio.
• --opencl-workload-absolute Treat OpenCL workload as an absolute nonce count.
• --opencl-nonce-gen <lean|xoshiro> OpenCL nonce generator.
• --opencl-no-amd-binary Disable fetching/using the precompiled AMD OpenCL binary.

Notes on Option Behavior

• --devices is the recommended end-user selector and maps to the Index column from --list-gpus.
• --list-gpus prints both Index and Bus ID; --devices always uses Index.
• Do not combine --devices with --cuda-device or --opencl-device.
• If no device selection flags are provided, all detected GPUs are used.
• --debug exists in debug builds only and is not part of the normal release-user CLI surface.

Devfee

Algorithm	Stratum	Solo gRPC	NushyPool
memhash	1%	1%	0%
hoohash	1%	1%	0%
cryptix	1%	1%	0%

NushyPool users mine with no dev fee.

One-Line Installation

Replace <VERSION> with the release version you want, for example 0.0.1.

Windows

Download and extract the Windows package in one line from PowerShell:

$v="<VERSION>"; Invoke-WebRequest "https://github.com/nushypool/npminer/releases/download/v$v/npminer-windows-x86_64-v$v.tar.gz" -OutFile "npminer.tar.gz"; tar -xzf .\npminer.tar.gz

Linux

Download and extract the Linux package in one line:

VERSION=<VERSION> && curl -L "https://github.com/nushypool/npminer/releases/download/v${VERSION}/npminer-linux-x86_64-v${VERSION}.tar.gz" | tar -xz

Setup for HiveOS

Example HiveOS configurations

Hoohash	Vecno	Cpay

Notes

• --list-gpus is the reference output for end-user GPU selection.
• --devices applies the same GPU selection model across enabled backends.
• Do not combine --devices with --cuda-device or --opencl-device.
• If no GPU-selection flags are provided, the miner uses all detected GPUs.