4.C. Comparisons with Message Passing

• Domain decomposition algorithm same, but implementation easier

  • Global data, Field variables shared - read from any thread, write may need synchronization
  • No need for passing messages, no need for ghost cells or shadow buffers

• Parallelize only parts of code that is significant, no need to convert entire code

  • Pre-processing, post-processing may be left alone

Previous slide

Next slide

Back to first slide

View graphic version