README.md

Advanced MPI and parallel I/O

Exercise material and model answers for the CSC course "Advanced MPI and parallel I/O". The course is part of PRACE Training Center (PTC) activity at CSC.

Exercises

General instructions

Using own communicators

• Communicators and collectives
• Cartesian grid process topology
• Message chain with Cartesian communicator
• (Bonus) Heat equation with cartesian communicator

Persistent and neighborhood communication

• Message chain with persistent communication
• Neighborhood exchange
• (Bonus) Heat equation with neighborhood collectives

Simple derived types

• Simple datatypes
• (Bonus) 2D-decomposed heat equation

Advanced derived types

• Communicating struct / derived type
• Modifying extent

Parallel I/O

• Parallel I/O with Posix
• Simple MPI-IO
• HDF5 example
• Bonus: Checkpoint + restart with MPI-IO