GPU621/Chapel

Introduction

The Chapel is an open-source programming language designed for productive parallel computing at scale. The Chapel compiler is written in C and C++14. The backend is LLVM, written in C++. The goal of Chapel is to improve the programmability of parallel computers in general.

Installation

• The release note: https://chapel-lang.org/releaseNotes.html
• Download Page: https://chapel-lang.org/download.html

Basic

Variables

Variables are declared with the var keyword. Variable declarations must have a type, initializer, or both.

     var myVariable1: int;
     writeln("myVariable1 = ", myVariable1);

const and param can be used to declare runtime constants and compile-time constants respectively. A const must be initialized in place, but can have its value generated at runtime. A param must be known at compile time.

     const myConst: real = sqrt(myVariable2);
     param myParam = 3.14;
     writeln("myConst = ", myConst, ", myParam = ", myParam);

Reference

• The Chapel Programming Language Offical Site: https://chapel-lang.org/
• The Chapel Introduction Vidro: https://www.youtube.com/watch?v=7Qk8T7_bevo
• The Chapel Documentation: https://chapel-lang.org/docs/#
• Full-Length Chapel Tutorial: https://chapel-lang.org/tutorials.html
• Specific Chapel Concepts or Features: https://chapel-lang.org/docs/primers/
• The Chapel Promotional Video: https://youtu.be/2yye1yJPcsg
• The Chapel Overview Talk Video: https://youtu.be/ko11tLuchvg
• The Chapel Overview Talk Slide: https://chapel-lang.org/presentations/ChapelForHPCKM-presented.pdf
• Comparative Performance and Optimization of Chapel: https://chapel-lang.org/CHIUW/2017/kayraklioglu-slides.pdf
• The Parallel Research Kernels: https://www.nas.nasa.gov/assets/pdf/ams/2016/AMS_20161013_VanDerWijngaart.pdf
• The Chapel Tutorial: https://www.youtube.com/watch?v=QiyLkfYHEvg
• The Chapel Tutorial: https://www.youtube.com/watch?v=kCI0riVEjlk