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"Amazing work."

— Client Feedback

The client had a novel cryptocurrency, Qubitcoin, which used a complex quantum proof-of-work (qPoW) algorithm. Their mining was crippled by a CPU-only miner delivering a practically unusable ~10 H/s, leaving their high-end RTX 4090 GPU completely untapped. The goal: unlock that hardware and make Qubitcoin mining viable

This was a ground-up port, not a simple fix. I engineered a complete, GPU-native solution in three phases-

Algorithm Porting... I analyzed the existing C++ qhash algorithm to understand its quantum simulation logic. I then re-architected and rewrote it entirely in CUDA C++ to run on thousands of parallel GPU cores

Quantum Optimization... To handle the 16-qubit quantum circuit simulation (RY, RZ, CNOT gates), I integrated the NVIDIA cuQuantum SDK, specifically using cuStateVec for high-performance, GPU-accelerated quantum state vector operations

Pro-Miner Integration... I integrated this new CUDA module into the professional ccminer framework, turning it into a robust, reliable miner. The final delivery included a complete build system, solo-mining configuration, and clear documentation

The results were immediate and transformative.

100x Performance Increase... Boosted mining speed from ~10 H/s (CPU) to over 1,000 H/s (RTX 4090)

Hardware Unlocked... The client's $1,600 GPU from a dormant piece of hardware into a high-performance mining machine.

Network Viability.... Enabled the first truly efficient GPU mining for the Qubitcoin network, making it a viable project for other miners

Core Tech... CUDA 12.8, NVIDIA cuQuantum SDK (cuStateVec), ccminer Framework

Languages... C++, CUDA C++, Bash

Key Skills... GPU Parallel Computing, Quantum Circuit Simulation, Algorithm Porting (CPU to GPU), System Integration, High-Performance Computing (HPC), Cryptocurrency Mining Protocols