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CMake - Concepts and Options

CMake Concepts, Compile Options, Commands, CMake-Format, Header-Only Library, Static Library

Concepts Hierarchy CMake is hierarchical. That is, you have a top-level project, with multiple subprojects. Basic Operations: 1 2 3 4 cmake_minimum_required(VERSION 3.10) project(MyProject) ad...

Posted by Rico's Nerd Cluster on October 1, 2023

My Journey Into CUDA

GPU Architecture, Tensor Cores, SIMD SIMT, 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 August 15, 2023

Bash Magic

Bash is great. Here is a list of bash tricks & knowledge points that I found magical

Builtins Declare The declare builtin is used to explictly declare variables declare -r var is to declare a read-only variable 1 2 declare -r var="123" var="456" # see "var: readonly varia...

Posted by Rico's Nerd Cluster on June 15, 2023

C++ - Writing GTest for ROS

Test! Test! Test!

Concepts Google Test (a.k.a GTest) is an open source unit testing structure. From the official website Test Suite vs Test Case: A test suite contains one or many tests. You should group your t...

Posted by Rico's Nerd Cluster on May 21, 2023

ROS - Using GDB for ROS

GDB is a very useful that allows us to pause at a break point or failure and inspect.

Introduction GDB is EXTREMELY handy. I used to doing a lot of print statements, but now I use GDB a lot. The reason is simple: I can check multiple things at once without recompiling everytime, es...

Posted by Rico's Nerd Cluster on May 20, 2023

C++ - [OOP] Polymorphism - Virtual Functions and Virtual Inheritance

Virtual is virtually complicated. Dynamic Dispatch, Dreadful Diamond Derivative (DDD) Problem ...

Introduction The virutal keyword is very versatile. A really short and nasty summary is, it is to ensure the correct functions or base class is inherited / loaded during runtime. Motivating Examp...

Posted by Rico's Nerd Cluster on March 3, 2023

C++ - [OOP] Initialization

Default Initialization, Memory Order

Default Initialization Default Initialization is when a variable is initialized without explicit value. They could be in an uninitialized state and accessing them could be an undefined behavior. ...

Posted by Rico's Nerd Cluster on March 1, 2023

C++ - Coroutine

Coroutine Coroutines in C++ allows us to write asynchronous code in a sequential style. It allows us to resume and suspend, instead of blocking a thread. A coroutine by default is single-threaded,...

Posted by Rico's Nerd Cluster on February 20, 2023

C++ - Multithreading

SIMD

SIMD & Vectorization Execution Policy for for_each (C++ 17) std::execution::par_unseq is an execution policy introduced in C++17 that you can pass to algorithms like std::for_each. It directs ...

Posted by Rico's Nerd Cluster on February 19, 2023

C++ - Coding Styles

Casing

Casing namespace: lower case like std, boost.

Posted by Rico's Nerd Cluster on February 16, 2023

Rico's Nerd Cluster