https://github.com/ssciwr/high-performance-cpp

High Performance C++ [SSC Compact Course]
https://github.com/ssciwr/high-performance-cpp

cpp performance ssc-compact-course

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High Performance C++ [SSC Compact Course]

• Host: GitHub
• URL: https://github.com/ssciwr/high-performance-cpp
• Owner: ssciwr
• License: mit
• Created: 2022-02-09T15:53:59.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2025-04-07T17:24:33.000Z (12 months ago)
• Last Synced: 2025-04-21T13:38:46.830Z (12 months ago)
• Topics: cpp, performance, ssc-compact-course
• Language: C++
• Homepage: https://ssciwr.github.io/high-performance-cpp
• Size: 1.76 MB
• Stars: 5
• Watchers: 2
• Forks: 1
• Open Issues: 2
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# High Performance C++

[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)

[![GitHub Workflow Status](https://img.shields.io/github/actions/workflow/status/ssciwr/high-performance-cpp/ci.yml?branch=main)](https://github.com/ssciwr/high-performance-cpp/actions/workflows/ci.yml)

[![codecov](https://codecov.io/gh/ssciwr/high-performance-cpp/branch/main/graph/badge.svg)](https://codecov.io/gh/ssciwr/high-performance-cpp)

## Slides

[download slides as pdf](https://github.com/ssciwr/high-performance-cpp/raw/main/slides/slides.pdf) | [download course description as pdf](https://ssc.iwr.uni-heidelberg.de/sites/default/files/high-performance-cpp-ss22.pdf)

## Getting started

To clone the repo, compile the code and run the benchmarks:

```

git clone --recursive https://github.com/ssciwr/high-performance-cpp.git

cd high-performance-cpp

mkdir build

cd build

cmake -DCMAKE_BUILD_TYPE=Release ..

cmake --build .

./bench/bench

```

Notes

- CMake 3.16 gave a `target "BLAS::BLAS"` error on Ubuntu (see [#13](https://github.com/ssciwr/high-performance-cpp/issues/13))

  - Using a more recent CMake version is one solution to this problem

- Apple clang on M1 mac doesn't support the `-march=native` flag

  - Possible alternatives: `-mcpu=apple-m1` or `-mcpu=apple-a14`

  - `-march=native` will be supported by on M1 by clang 15

## Plots

List versus Vector inserting elements:

![](plots/data_structure-llvm.png)

![](plots/data_structure-gcc.png)

Matrix-vector multiplication:

![](plots/matmul-llvm.png)

![](plots/matmul-gcc.png)

Struct of Arrays versus Array of Structs:

![](plots/particles_m-llvm.png)

![](plots/particles_m-gcc.png)

![](plots/particles_xy-llvm.png)

![](plots/particles_xy-gcc.png)