Codee Training: Write Accelerated Code at Expert Level, Sept 5-6, 2024

September 5, 2024

Introduction

Codee is a programming development tool for Fortran/C/C++ that facilitates the development of modern, parallel codes for multicore CPUs and GPUs using OpenMP and OpenACC. Leveraging the first Open Catalog of Best Practices for Modernization and Optimization, Codee identifies opportunities for improvement and provides detailed guidance on how to effectively exploit them. A standout feature is its ability to insert OpenMP and OpenACC directives, enabling even novice programmers to write expert-level parallel code for CPUs and GPUs in Fortran/C/C++. Additionally, Codee helps developers uncover hidden bugs, avoid introducing new ones, and pinpoint code optimization suggestions. As a result, Codee facilitates the maintenance and optimization of large Fortran/C/C++ codes, while ensuring code correctness and reliability. Codee also has the ability to automatically rewrite Fortran code to enforce Fortran modernization best practices, which is strongly recommended by experts before starting code optimization efforts.

This two-part training, scheduled for September 5-6th, aims to familiarize both novice and seasoned programmers with the usage of Codee to modernize and optimize their codes following best parallel programming practices for CPUs and GPUs with OpenMP and OpenACC.

Part One (September 5th): Participants will learn about the capabilities of Codee, including short demos on different Fortran/C/C++ codes accelerated on both CPUs and GPUs. The session includes practical exercises with step-by-step instructions on Perlmutter.

Part Two (September 6th): This session will demonstrate how to use Codee for large projects, how to use Codee for automated testing in Perlmutter, and provide new hands-on exercises. Participants are also encouraged to bring their own codes for guidance on leveraging Codee’s potential.

This training is open to OLCF and ALCF users. NERSC training accounts will be provided if needed.

Date and Time

This training will take place online, via Zoom, on Thursday-Friday, September 5-6th, from 9:00 am to 12:30 pm (Pacific Daylight Time).

Schedule

Part, Date & Time	Topic and Format
Part 1, Thur, Sept 5 9:00 am - 12:30 pm PDT	Codee: Automated Code Inspection for Modernization and Optimization Lecture: Codee’s command-line tool Open Catalog of Best Practices for Fortran/C/C++ Modernization and Optimization for CPU and GPU Demo using Fortran: HIMENO modernization HIMENO optimization through CPU & GPU parallelism Demo using C/C++: COULOMB optimization through CPU & GPU parallelism Hands-on: PI, MATMUL, COULOMB, HIMENO Format: Remote lecture, demos, and hands-on
Part 2, Fri, Sept 6 9:00 am - 12:30 pm PDT	Codee: Automated Analysis of Large-Scale Fortran/C/C++ Codes Lecture: Codee’s command-line tool using compilation databases Automated testing of large codes using Codee on Perlmutter Use case: Optimizing the Weather Research and Forecasting Model (WRF) with OpenMP Offload and Codee Demo using Fortran: Putting it all together with HYCOM Demo using C/C++: Putting it all together with MBedTLS Hands-on: NUCCOR, ATMUX, HEAT, LULESHmk, MBedTLS Bring your own applications! Format: Remote lecture, demos, and hands-on

Part, Date & Time

Topic and Format

Part 1, Thur, Sept 5

9:00 am - 12:30 pm PDT

Codee: Automated Code Inspection for Modernization and Optimization

Lecture:
- Codee’s command-line tool
- Open Catalog of Best Practices for Fortran/C/C++ Modernization and Optimization for CPU and GPU
Demo using Fortran:
- HIMENO modernization
- HIMENO optimization through CPU & GPU parallelism
Demo using C/C++:
- COULOMB optimization through CPU & GPU parallelism
Hands-on: PI, MATMUL, COULOMB, HIMENO

Format: Remote lecture, demos, and hands-on

Part 2, Fri, Sept 6

9:00 am - 12:30 pm PDT

Codee: Automated Analysis of Large-Scale Fortran/C/C++ Codes

Lecture:
- Codee’s command-line tool using compilation databases
- Automated testing of large codes using Codee on Perlmutter
- Use case: Optimizing the Weather Research and Forecasting Model (WRF) with OpenMP Offload and Codee
Demo using Fortran:
- Putting it all together with HYCOM
Demo using C/C++:
- Putting it all together with MBedTLS
Hands-on: NUCCOR, ATMUX, HEAT, LULESHmk, MBedTLS
Bring your own applications!

Format: Remote lecture, demos, and hands-on

Registration

Please use this form to register.

Presentation Materials

Open catalog: https://github.com/codee-com/codee-demos.git
Demos: https://github.com/codee-com/codee-demos.git
Slides: please see attached below
Video as a Playlist on NERSC YouTube channel

Downloads

NERSC_Welcome_Codee_Sept2024.pdf | Adobe Acrobat PDF file
Codee_NERSC2024_Day1_Slides.pdf | Adobe Acrobat PDF file
Codee_NERSC2024_Day2_CompileCommands.pdf | Adobe Acrobat PDF file
Codee_NERSC2024_Day2_CICD.pdf | Adobe Acrobat PDF file
WRF_Codee_training_2024.pdf | Adobe Acrobat PDF file

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