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of the National Oceanic and Atmospheric Administration, or the United States
Department of Commerce. All NOAA GitHub project code is provided on an ‘as
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This project contains derivative work from the Geophysical Fluid Dynamics Laboratory GitHub project for the FV3 dynamical core (https://github.com/NOAA-GFDL/GFDL_atmos_cubed_sphere). It is a stand alone subset of the original specifically licensed for use under the Apache License. The application of the Apache License to this standalone work does not imply nor shall it be construed as any change to the original source license.

Overview

This repository contains a stand-alone kernel for the c_sw subroutine, extracted from the FV3 model. The goal of this repository is to facilitate direct comparisons of different implementations of c_sw. Alternative implementations may use different programming languages, parallel programming models, or numerical modeling libraries. They may also target different hardware such as GPUs or ARM processors. In numerical modeling, metrics for comparison traditionally include performance and portability. However, this work encourages comparison of developer productivity and design metrics such as ease of use, extensibility, and maintainability.

A Fortran 90 implementation of c_sw is provided as a baseline reference to which other implementations should be compared. Additional implementations will be added as they are developed.

Contents

This repository is organized as follows.

test/

Contains the reference test baselines, input and output data all implementations must use for testing and validation.

ref/

Contains the source tree for the reference implementation. See the README in that directory for details about how to run and test it.

Julia/

Contains the source tree for the Julia implementation. See the README in that directory for details about how to run and test it.

Contributing

Please see the Contributing Guide for information about contributing to this repository.