iris https://blog.ginshio.org/ iris | GinShio 的个人博客 Hugo -- gohugo.iozh-CNginshio78@gmail.com (GinShio) ginshio78@gmail.com (GinShio)This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.Sun, 01 Jun 2025 13:53:12 +0800 Git Configurations https://blog.ginshio.org/2025/git_configurations/ Sun, 01 Jun 2025 13:53:12 +0800 GinShio https://blog.ginshio.org/2025/git_configurations/ 使用 git 时不止要为 git 的复杂性头疼，还需要为 git 的配置文件头疼。当然这一切的来源都是多用户配置的需求：我需要多账户设置，比如个人账户和组织账户，但它们都是 github 账号。

]]> GPU 基础介绍 https://blog.ginshio.org/2024/gpu-introduce/ Fri, 15 Nov 2024 22:20:00 +0800 GinShio https://blog.ginshio.org/2024/gpu-introduce/ 该篇介绍主要以 AMDGPU 7900XTX (Navi31) 为例。

现代 GPU 上基本使用 SIMT (单指令多线程, Single Instruction Multiple Threads) 模型，即一条指令执行在多个线程 (thread / lane / invocation) 上，每个线程上可能存储、运算不同地数据，也就是说具有大规模并行计算的能力。

]]> How To Use Mesa's test tool: deqp-runner https://blog.ginshio.org/2024/how-to-use-deqp-runner/ Fri, 20 Sep 2024 23:13:27 +0800 GinShio https://blog.ginshio.org/2024/how-to-use-deqp-runner/ deqp-runner is a series of tools written by mesa developers for running vulkan and opengl quality test case programs. It can run in parallel and robustly dEQP (draw-element quality program), piglit, SkQP (Skia Quality Program), and so on.

In my experience, when running large dEQP test cases, your own changes may cause umd (user mode driver) to fail, crash, timeout, or hang. If you simply use deqp-vk, the khronos testcases program for vulkan, the test will stop when umd throws unrecoverable error. And we cannot easily get the results that new failures based on the previous version.

]]> How To Build Mesa for AMD https://blog.ginshio.org/2023/how-to-build-mesa/ Mon, 28 Aug 2023 22:25:22 +0800 GinShio https://blog.ginshio.org/2023/how-to-build-mesa/ What

copy from Wikipidia:

Mesa is an open source implementation of OpenGL, Vulkan, and other graphics API specifications. Mesa translates these specifications to vendor-specific graphics hardware drivers.

Mesa is UMD (User mode driver), provides implementation of graphics API and shader compiler. Mesa is like a mono repository, different vendor drivers and graphics APIs are in different directories.

Gallium is a driver project in mesa, includes many backends for hardwares:

  • AMD driver for GCN & Navi (radeonsi)
  • Intel driver for iris (i965)
  • Intel driver (i915)
  • Nvidia driver (nouveau)
  • Software implementation (swrast)
  • OpenGL over Vulkan (zink)
  • DirectX3D 12 driver (d3d12)
  • OpenCL frontend (clover)
  • new OpenCL frontend by rust (rusticl, 23.1)

libgl only provides APIs, and dispatch call to vendor implementation (e.g. radeonsi).

]]> 数据抽象 https://blog.ginshio.org/2023/cs61a_03_data_abstractions/ Sun, 12 Feb 2023 14:41:28 +0800 GinShio https://blog.ginshio.org/2023/cs61a_03_data_abstractions/ 容器

在 scheme 中一类最基础的异构数据结构即 list