Description

The course introduces the basics of parallel programming with the message-passing interface (MPI) and OpenMP paradigms. MPI is the dominant parallelization paradigm in high performance computing and enables one to write programs that run on distributed memory machines, such as Puhti and Taito. OpenMP is a threading based approach which enables one to parallelize a program over a single shared memory machine, such as a single node in Puhti. The course consists of lectures and hands-on exercises on parallel programming.

Learning outcome

After the course the participants should be able to write simple parallel programs and parallelize existing programs with basic features of MPI or OpenMP. This course is also a prerequisite for the PTC course "Advanced Parallel Programming" in 2020.

Prerequisites

The participants are assumed to have working knowledge of Fortran and/or C programming languages. In addition, fluent operation in a Linux/Unix environment will be assumed.

Program

Day 1, Wednesday 23.10

09:00-10:30 What is parallel computing
10:30-10:45 Coffee break
10:45-11:30 Introduction to MPI
11:30-12.00 Exercises
12:00-13:00 Lunch
13:00-14:00 Point-to-point communication
14:00-16:00 Exercises

Day 2, Thursday 24.10

09:00-09:45 Collective communication
09:45-10:30 Exercises
10:30-10:45 Coffee break
10:45-11:15 User-defined communicators
11:15-12:00 Exercises
12:00-13:00 Lunch
13:00-13:45 Non-blocking communication
13:45-14:15 Exercises
14:15-14:30 Coffee break
14:30-15:15 User-defined data types
15:15-16:00 Exercises

Day 3, Friday 25.10

09:00-09:45 Introduction to OpenMP
09:45-10:30 Exercises
10:30-10:45 Coffee break
10:45-11:15 Work-sharing constructs and reductions
11:15-12:00 Exercises
12:00-13:00 Lunch
13:00-13:45 Synchronization
13:45-14:30 Exercises
14:30-14:45 Coffee break
14:45-15:15 Tasks
15:15-16:00 Exercises

Lecturers: 

Jussi Enkovaara (CSC), Sami Ilvonen (CSC)

Language:   English
Price:          Free of charge
https://events.prace-ri.eu/event/915/