4.3 Using the WRAPPER

In order to support maximum portability the WRAPPER is implemented primarily in sequential Fortran 77. At a practical level the key steps provided by the WRAPPER are

1. specifying how a domain will be decomposed
2. starting a code in either sequential or parallel modes of operations
3. controlling communication between tiles and between concurrently computing CPU's.

• 4.3.1 Specifying a domain decomposition
  • 4.3.1.1 Examples of SIZE.h specifications
  
  
• 4.3.2 Starting the code
  • 4.3.2.1 Multi-threaded execution
  • 4.3.2.2 Multi-process execution
  
  
• 4.3.3 Controlling communication
  • 4.3.3.1 Specializing the Communication Code
  • 4.3.3.2 JAM example
  • 4.3.3.3 Cube sphere communication

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