After you complete this topic, you should be able to:

• Explain how deadlock occurs
• Identify situations where deadlock commonly occurs
• Describe four strategies for avoiding deadlock
• Explain which strategy to use in different situations
• Define the term persistent communication
• Explain how MPI objects are manipulated using persistent communication
• Describe a nonblocking message-passing routine in terms of persistent communication
• Demonstrate creating requests, sending/receiving messages, and cleaning up objects using persistent communication

• Familiarity with HPC paradigms and MPI Basics.
• Experience programming in a high-level language such as Fortran or C would be helpful, but the reader can still follow along to understand the concepts and methodologies.
• A basic familiarity with parallel programming concepts