"Hello World !" Application

The first example in this tutorial allows for the development of a module using ARCANE. The goal of this module is to display the message "Hello World !".

Modules

Prerequisites

• Read the introduction of the document Getting Started with Arcane.
• Read the section on Module.

Actions to perform

Following the previously referenced documents, you must:

• Create the class HelloWorldModule by completing the files HelloWorldModule.h and HelloWorldModule.cc:
  • Declare the class
  • Complete the inheritance
  • Define the constructors and destructors
  • Register the module with the macro
• Complete the file HelloWorld.axl which describes the previously created module.
• Compile. The Makefile files are provided. By observing them, you will notice that you must not forget:
  • to compile with the include files of ARCANE
  • to perform the linking with the arcane, arcane_std and arcane_mpi libraries (for parallel executions)

Entry Points

Prerequisites

• Read the section on Entrypoint

Actions to perform

• Complete the module by creating a method HelloWorldModule::printHelloWorld which writes "Hello World !"
• Complete the file HelloWorld.axl by declaring the entry point
• Recompile

Time Loop

Prerequisites

• Read the document Time Loop.

Actions to perform

• Complete the file HelloWorld.config to define the time loop of the application
• Define your application by completing the file main.cc
• Recompile

Data File

Actions to perform

• Complete the data file HelloWorld.arc by selecting the previously defined time loop.
• Execute !

Traces

Prerequisites

• Read the document Using Traces.

Actions to perform

• Display the message "Hello World" using ARCANE traces.
• Execute !
• Create a user configuration file config.xml and perform executions by parameterizing the display