CUDA Programming Model

July 28, 2023 · 11 min read

梳理 CUDA 异构计算、执行空间说明符、线程层次、NVCC 编译流程和 NVProf 性能分析。

GPU Hardware Architecture

July 28, 2023 · 11 min read

介绍 CPU 与 GPU 的架构差异、GPU 硬件平台、Jetson 设备及 Amdahl 定律。

Introduction to CUDA and Linux Basics

July 24, 2023 · 10 min read

从 CUDA 与 NVIDIA 技术生态入门，介绍 Ubuntu、Jetson 开发环境、权限管理、SSH 和 Makefile。

AI开发硬件环境综述

March 14, 2023 · 17 min read

笔记本选配 #

出于通勤等因素，建议型号

• MacBook Air M1 16+ 256

• MacBook Pro M1 16 + 256

M1芯片的mbp非常强大，发热不严重，甚至在Air版没风扇.

Overview of the AI Development Software Environment

March 14, 2023 · 6 min read

Regarding software:

1. Installation of the ubuntu operating system
2. Abandon bash, embrace zsh
3. Use of package managers,
4. Install the NVIDIA GPU driver
5. Software installation:Miniconda
6. Software installation:Python IDE
7. Software installation: ssh
8. Software installation:Git
9. Installation of other productivity software

Nginx Basics and Minimal Configuration

March 1, 2023 · 5 min read

Directory Structure #

The Nginx root directory contains the following folders:

client_body_temp conf fastcgi_temp html logs proxy_temp sbin scgi_temp uwsgi_temp

Folders ending in _temp are used to store temporary files generated during operation.

The other main folders are:

• conf: stores configuration-related files
• html: the default directory for static files such as HTML and CSS files
• sbin: the main Nginx executable
• logs: stores various logs. For example, access records access-related information, error records errors, and nginx.pid records the service’s PID, that is, its process ID.

Nginx Installation and Deployment

February 28, 2023 · 4 min read

Virtual machine: VMware Workstation 16 Operating system: CentOS 7.4 Download URL: https://vault.centos.org/centos/7.4.1708/isos/x86_64/CentOS-7-x86_64-Minimal-1708.iso^[1]

Recommended computer configuration:

• Memory: 8 GB or more is recommended
• Disk: An SSD is recommended
• CPU: Any mainstream CPU with four or more cores will suffice

SQL Query Optimizers Explained

August 5, 2022 · 31 min read

从 SQL 解析与执行流程出发，介绍基于规则和代价的查询优化、统计信息、执行计划枚举，以及 Apache Calcite 的开源实践。

Pipes, Environment Variables, and Common Commands

July 27, 2022 · 13 min read

管道类似于文件重定向，可以将前一个命令的stdout重定向到下一个命令的stdin。

1. 管道命令仅处理 stdout，会忽略 stderr （标准错误）。
2. 管道右边的命令必须能接受stdin。
3. 多个管道命令可以串联。

Tmux Common Commands

July 26, 2022 · 1 min read

A tmux instance can contain multiple sessions, a session can contain multiple windows, a window can contain multiple panes, and a shell dialog is opened in each pane.