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Contents
Contents
Earth System Modeling Framework
Software Developer's Guide
Silverio Vasquez, Sylvia Murphy, Cecelia DeLuca, Walter Spector, Gerhard Theurich
April 12, 2024
Contents
1
Introduction
1
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1
About this Document
1
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2
Supplementary Information
1
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3
Acknowledgments
2
Groups and Roles in ESMF Development
2
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1
Core Team
2
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1
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1
Core Team Roles
2
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2
Joint Specification Team (JST)
2
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3
Change Review Board (CRB)
2
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4
Quality Assurance Responsibilities
3
Collaboration Environment and Communication
3
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1
Mailing Lists
3
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2
Meetings and Telecons
3
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3
GitHub Open Source Development Environment
3
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3
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1
The Main ESMF Site and Repository
4
Processes
4
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1
Software Process Model
4
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2
ESMF Process History
4
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2
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1
Software Concept
4
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2
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2
Requirements Analysis
4
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2
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3
Architectural Design
4
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3
Ongoing Development
4
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3
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1
Telecon Etiquette
4
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3
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2
Design Reviews
4
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3
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3
Implementation and Test Before Internal Release
4
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3
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4
Implementation and Test Before Public Release
4
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3
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5
Code Check-In
4
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3
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6
Code Reviews
4
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3
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7
Releases
4
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3
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8
Backups
4
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4
Testing and Validation
4
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4
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1
Unit Tests
4
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4
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1
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1
Writing Unit Tests
4
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4
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1
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2
Analyzing unit test results
4
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4
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1
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3
Disabling unit tests
4
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4
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1
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4
Benchmarking Unit Tests
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4
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2
Examples
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4
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2
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1
Disabling examples
4
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4
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3
System Tests
4
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4
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3
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1
Writing System Tests
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3
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2
Disabling system tests
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4
Test Harness
4
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1
Analyzing Test Harness results
4
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4
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5
Use Test Cases (UTCs)
4
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4
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6
Beta Testing
4
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4
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7
Automated Regression Tests
4
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4
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8
Investigating Test Failures
4
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4
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9
Building the Documentation
4
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4
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10
Testing for Releases
4
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5
User Support
4
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5
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1
Roles
4
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5
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2
Support Categories
4
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5
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3
Summary Work Flow
4
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5
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4
General Guidelines for Handling Tickets
4
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5
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5
esmf_support@ucar.edu Mail Archives
4
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5
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INFO:Code (subject) mail messages
4
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7
freeCRM
4
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5
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8
Annual Code Contact
4
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5
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9
Dealing with Applications that use ESMF
5
Apps
6
Test Harness
6
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1
Specifying Test Harness Tests
6
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2
Running Test Harness Tests as Part of Unit Tests
6
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3
Invoking a Single Test Harness Test Case Using gmake
6
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4
Invoking a Single Test Harness Test Case from the Command Line
6
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5
Top Level Configuration File
6
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5
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1
Problem descriptor file
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5
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2
Problem descriptor string syntax
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2
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1
Grid syntax
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2
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2
Distribution syntax
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2
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Transformation method
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2
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4
Staggering syntax (Not currently implemented)
6
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3
General Data Structures
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4
Specifier files
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5
Grid Specification
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1
Curvilinear Grid Coordinate Generation (For Future Implementation)
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2
Specifier file syntax for redistribution
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3
Specifier file syntax for regridding
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Distribution Specification
6
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5
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7
Class Specification
6
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6
Reporting test results
7
Conventions
7
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1
Docs: Code and Documentation Templates and Associated Scripts
7
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1
Documentation Generation Script
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Code Generation Scripts
7
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Docs: Documentation Guidelines and Conventions
7
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2
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1
Accessibility
7
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2
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2
File format
7
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2
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3
Typeface and Diagram Conventions
7
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2
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4
Style Rules for
L
A
T
E
X
7
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3
Docs: Performance Report Conventions
7
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4
Docs: Reference Manual Conventions
7
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Description, Use and Examples, and Other Introductory Sections
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4
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2
Examples Sections
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4
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3
Flags and Options Sections
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4
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4
Class API Sections
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Code: Method Conventions
7
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1
Standard Method Names
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2
Use of *Set and *Get
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3
Use of Is* and Has*
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Functions vs. Subroutines
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Source and Destination Ordering
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Code: Argument Conventions
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Standard Variable Names
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2
Use of Is* and Has*
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Variable Capitalization
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Variables Associated with Options
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Variables Having Logical Data Type
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Arguments which are Arrays
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Arguments which are Pointers
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Code: File Rules
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1
License and Copyright Information
7
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2
TODO: Reminder
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3
FILENAME Macros
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Code: Style Rules for Source Code
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Code: Error Handling Conventions
7
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9
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1
Objectives
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2
Approach
7
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3
Error Masking
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Example (pre-review method)
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Example (post-review method)
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Memory Allocation Checking
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10
Initialization Standardization Instructions
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1
Overview
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10
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2
Instructions
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10
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3
Module
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10
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Shallow Class
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Deep Class
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Parameter Class
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Subroutine
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ESMF Class Types
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Code: Data Type Consistency Guidelines
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Use ESMF names for data types in C and ESMF data kinds in Fortran
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2
Fortran
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11
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3
C and C++
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ESMF_TypeKind_Flag “labels”: When knowing the data type/kind is necessary
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Guidelines for Fortran-C Interfaces
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Code: Optional Argument Conventions for the C/C++ API
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12
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1
Overview
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12
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2
Approach
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12
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3
Internal Macros for Processing the Optional Argument List
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12
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4
Parsing the Optional Argument List
7
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Code: Makefile Conventions
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1
Code Building Rules
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2
Document Building Rules
7
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13
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3
Include Files
7
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14
Preprocessor Usage
7
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1
Using the Preprocessor For Generic Fortran Code
7
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14
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2
System Dependent Strategy Using Preprocessor
7
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15
ESMF Data Type Autopromotion Support Policy and Guide
7
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15
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1
How We Arrived at This Autopromotion Support Policy
7
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Scripts: Script Coding Standard
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1
Content Rules
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Lang: Interlanguage Coding Conventions
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Optional Arguments Across Language Interfaces
7
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Lang: Fortran Coding Standard
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1
Content Rules
7
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18
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2
Style Rules
7
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19
Lang: C/C++ Coding Standard
7
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Repo: Source Code Naming and Tagging Conventions
7
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1
Public Releases
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20
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2
Internal Releases
7
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21
Data Management Conventions
8
Tracking and Metrics
8
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1
Release Schedule
8
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2
Task List
8
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3
Trackers
8
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3
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1
Setting Ticket Priorities
8
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3
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2
Labeling Tickets Longer than 2 Weeks
8
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3
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3
Estimating Ticket Completion Time
8
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3
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4
Labeling Tickets with Time Estimates
8
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3
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5
Cross-Referencing the Task List and Trackers
8
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3
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6
Summary
8
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3
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7
Types of Trackers
8
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4
Metrics
8
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4
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1
Unit and System Tests Coverage
8
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4
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2
ESMF Requirements Coverage
8
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4
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3
Source Lines of Code, SLOC
9
Policies
9
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1
External Software Libraries
9
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2
Graphics Packages
Appendix A: Testing Terminology
Bibliography
About this document ...
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