Rico贾若童的博客

[ML] OpenClaw

OpenClaw Video: https://www.youtube.com/watch?v=Otn-NbpQH1k Start Ollama: 1 2 3 4 5 6 ollama run http://localhost:11434/ ollama launch openclaw # on the control panel /model qwen2.5:7b...

Posted by Rico's Nerd Cluster on February 1, 2026

[CUDA - 3] SIMT in CUDA

SIMD SIMT

SIMT and SIMD CUDA is a very good embodiment of SIMD (Single-Instruction-Multiple Data). SIMD is great for addressing embarassingly parallel problems, problems that are so “embarassingly” simple...

Posted by Rico's Nerd Cluster on January 19, 2026

[CUDA - 2] My First CUDA Kernel - Chamfer Distance

First CUDA Program, JIT Compile

On Chamfer Distance Chamfer distance measures how close two point clouds are by averaging nearest-neighbor distances in both directions. Given two point sets $P_1$ and $P_2$, For each point ...

Posted by Rico's Nerd Cluster on January 16, 2026

[CUDA - 2] Introduction to CUDA Coding

CUDA Programming Hierarchy

What is Cuda CUDA is fundamentally C++ language with extensions. kernels, __global__, __device__ etc are defined in the C++ space. If you want to expose C to CUDA, just follow the standard 1 exte...

Posted by Rico's Nerd Cluster on January 14, 2026

[CUDA - 2] CUDA Introduction

First CUDA Program, SIMD SIMT,

What is Cuda Cuda is fundamentally C++ language with extensiions. kernels, __global__, __device__ etc are defined in the C++ space. If you want to expose C to CUDA, just follow the standard 1 ext...

Posted by Rico's Nerd Cluster on January 14, 2026

[CUDA - 1] GPU Architecture

GPU Architecture, Tensor Cores, Pinned Memory

A Great introduction video can be found here GPU (GA102) Architecture A graphics card’s brain is its GPU. NVidia’s Ampere GPU architecture family has GA102 and GA104. GA102 is shared across NVidi...

Posted by Rico's Nerd Cluster on January 11, 2026

[Point Cloud Compression] - Sampling

Furthest Point Sampling Idea: given a set of points 1 P = {P1, P2, ...} Select 1 S = {s1, s2 ...} such that S is maximally spread out. How? Add an intial point in P to S. Then iterativ...

Posted by Rico's Nerd Cluster on January 7, 2026

[ML] -Point-cloud-compression-1-Basic-Concepts

PSNR, Chamfer Distance

[Part 1] PSNR vs SNR In signal processing, the Signal-to-Noise Ratio (SNR) is defined as: \[\mathrm{SNR} = 10 \log_{10} \left( \frac{\mathrm{Var}(\text{signal})}{\mathrm{Var}(\text{noise})} \righ...

Posted by Rico's Nerd Cluster on January 5, 2026

[Rust Learning]-2-Variables

Ownership

Basic Hello World In this example, you will see the usage of immutable vs mutables, how to declare variable types, how to pass in args and return from a function. 1 2 3 4 5 6 7 8 9 10 11 12 13 14...

Posted by Rico's Nerd Cluster on November 3, 2025

[Rust Learning]-1-Language Introduction

Why Rust

Rust Introduction: A Modern Systems Programming Language Rust is a systems programming language designed for performance, memory safety, and concurrency — without relying on a garbage collector. ...

Posted by Rico's Nerd Cluster on November 1, 2025

Rico's Nerd Cluster