Thanks for you interest in LibPressio! Here are a few things you can do to speed up the merging of you contribution.

General Things

Please make sure that you have permission from your home institution to contribute code under the license for LibPressio. This can take the form of a copyright assignment or a statement of policy + a written acknowledgment that you are contributing your code under the LibPressio license.
LibPressio maintains a linear history with version numbers for every change. Please squash all commits and update the version number appropriately as documented in the README.
Your code must pass all CI tests before it will be merged.
LibPressio code must compile with C++11. This is to support some super computers that only have ancient compilers. However, many of the C++14,17, and 20 library features have been backported in the compat namespace. Feel free to use these.

Plugins

LibPressio uses a key-value system to refer to configuration settings.

Each compressor may find specific configuration settings for its specific compressor with settings beginning with its compressor id as prefix (i.e. configurations for SZ begin with sz:). Refer to the specific compressors documentation for further documentation for each settings.

Use the io:, metrics: and pressio: where appropriate.
Avoid unnecessary casts. Prefer C++ style casts where required.
Prefer full names to abbreviations.
Do not contribute dead code or code that has been commented out.
Please read the semantics for each of the functions that you provide implementations of and conform to these requirements. If they are unclear, open an issue, and we will try to clarify the ambiguity.
Prefer the greatest level of thread safety possible for your plugin. Avoid global state shared between plugin instances where possible.
Option names in get_options and set_options should be snake_case
The options in CMake should be BIG_SNAKE_CASE and follow naming conventions used for the other options
When adding a enum option strongly consider adding a ${enum_name}_str option and configuration entry that accept strings to set the enum and list the values of the enum respectively. See the SZ plugin for an example of this.
When setting returning an error or warning, alway use the set_error function.

Contributors

The following people have contributed code to LibPressio in alphabetical order:

Ali Gok
Hengzhi Chen
Victoriana Malvoso
Robert Underwood
Sheng Di

Acknowledgments

The code authors would like to acknowledge others who have contributed ideas, suggestions, or other support during the development of LibPressio in alphabetical order:

Ali Gok
Alison Baker
Amy Apon
Amy Burton
Dorit Hammerling
Justin Sybrant
Franck Cappello
Jon C. Calhoun
Kai Zhao
Sheng Di
Peter Lindstrom

Funding Acknowledgments

This research was supported by the Exascale Computing Project (ECP),Project Number: 17-SC-20- SC, a collaborative effort of two DOE organizations - the Office of Science and the National Nuclear Security Administration, Responsible for the planning and preparation of a capable Exascale ecosystem, including software, applications, hardware, advanced system engineering and early testbed platforms, to support the nation’s Exascale computing imperative.

The material was supported by the U.S. Department of Energy, Office of Science, under contract DE-AC02-06CH11357, and supported by the National Science Foundation under Grant No. 1619253 and 1910197.

We acknowledge the computing resources provided on Bebop, which is operated by the Laboratory Computing Resource Center at Argonne National Laboratory.

This material is also based upon work supported by the U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research (SCGSR) program. The SCGSR program is administered by the Oak Ridge Institute for Science and Education (ORISE) for the DOE. ORISE is managed by ORAU under contract number DE-SC0014664. All opinions expressed in this paper are the authors and do not necessarily reflect the policies and views of DOE, ORAU, or ORISE