https://github.com/paytonison/ultraviolet

Post‑x86 blueprint: RISC‑V/ARM CPUs + on‑die CUDA, unified memory, and an OpenBSD kernel—secure, minimal, RISC‑native CUDA with NUMA‑aware scheduling.
https://github.com/paytonison/ultraviolet

arm cuda gpu hpc kernel numa openbsd riscv systems-architecture unified-memory

Last synced: 6 months ago
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Post‑x86 blueprint: RISC‑V/ARM CPUs + on‑die CUDA, unified memory, and an OpenBSD kernel—secure, minimal, RISC‑native CUDA with NUMA‑aware scheduling.

• Host: GitHub
• URL: https://github.com/paytonison/ultraviolet
• Owner: paytonison
• Created: 2025-09-22T08:07:19.000Z (6 months ago)
• Default Branch: main
• Last Pushed: 2025-09-22T08:20:35.000Z (6 months ago)
• Last Synced: 2025-09-22T10:17:56.431Z (6 months ago)
• Topics: arm, cuda, gpu, hpc, kernel, numa, openbsd, riscv, systems-architecture, unified-memory
• Homepage: https://linkedin.com/in/paytonison
• Size: 844 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

          
# Post‑x86 Blueprint: RISC‑Native CUDA + OpenBSD

This repo presents a conceptual architecture for a **clean break from x86**: 

fusing RISC‑V/ARM CPUs with CUDA GPUs into a single die, unified by **OpenBSD as the kernel**.

## Why?

- **x86 is legacy cruft** — bloated instruction sets, opaque microcode, endless abstraction leaks.

- **RISC‑V/ARM are leaner** — royalty‑free, extensible, globally adopted in AI/datacenter designs.

- **OpenBSD is strict and minimal** — security‑by‑default, hardware‑close, perfect for direct CPU/GPU binding.

- **Unified memory + fused packages** — eliminates bottlenecks between host CPUs and GPU accelerators.

## Architecture Overview

### Single‑Socket Design

![Single socket](risc_cuda_openbsd_arch.png)

**Key Features:**

- RISC‑V/ARM CPU cluster with vector + enclave extensions

- CUDA GPU SMs on‑die, unified cache‑coherent memory

- OpenBSD kernel with NUMA‑aware scheduler, strict DMA/IOMMU control

- RISC‑native CUDA runtime + toolchain

### NUMA‑Aware Rack‑Scale Design

![NUMA aware](risc_cuda_openbsd_numa.png)

**Key Features:**

- Multi‑socket NUMA domains with local HBM

- High‑speed interconnect fabric (CXL/NVLink‑class)

- OpenBSD kernel coordinating CPU+GPU queues across sockets

- Rack‑level control plane with NIC offload + multipath routing

## Why OpenBSD?

Unlike Linux, OpenBSD offers:

- **1:1 hardware transparency**

- Mandatory security policies (W^X, pledge, unveil)

- Minimal bloat → lower latency, easier verification

## Roadmap

- Define **RISC‑native CUDA toolchain** (nvcc targeting RISC host+GPU ISA)

- Extend **OpenBSD scheduler** for GPU queues

- Explore **RISC‑V GPU ISA extensions** for unified compute

- Build a **prototype driver + runtime shim**

## License

MIT — free to adapt, extend, or implement.

---

**Manifesto:**  

This blueprint is a call to abandon the duct‑taped x86/Linux/proprietary stack, 

and replace it with a transparent, unified, secure compute foundation.