OpenMP provides an efficient method to write parallel programs in C, C++ and Fortran.  OpenMP programs are suitable for execution on shared memory architectures such as modern multi core systems or a single compute node of the HPC clusters deployed by Lunarc and within SNIC.

This course will introduce participants to the shared-memory model for parallel programming and the OpenMP application-programming interface.  In many cases OpenMP allows an existing serial program to be upgraded incrementally, starting with the parallelisation of the most time-consuming parts of the code.  Typically OpenMP programs are easily ported from one shared memory multi processor system to another one.

The course consists of lectures alternating with practical sessions.  The teaching language will be English.  No prior experience in parallel computing is required.  Participants are however expected to be able to write serial programs in C, C++ or Fortran.  The course contents includes:

• Shared memory programming concepts
• Syntax of the OpenMP API
• Parallel and serial regions
• Shared and private data
• Workshare constructs and scheduling
• Reductions
• Avoiding data access conflicts and race conditions
• Performance considerations for non-uniform memory access hardware (e.g. nodes of SNIC HPC clusters)
• Introduction to OpenMP tasks

At the end of the course participants should have the ability to parallelise many of the computational kernels used in scientific codes.

Eligibility

The course is open to users and prospective users from all six SNIC HPC centres. It is part of the SNIC coordinated training in HPC.

Pre-requisites

Participants should be able to program in either of C, C++ or Fortran at an intermediate level.

The instructors

The course will be taught by consultants from HPC2N and LUNARC.

Time and location

The course will be online.  Course times are as follows:

• 28 February 2022, 09:00-12:30
• 1 March 2022, 09:00-12:30
• 2 March 2022, 09:00-12:30
• 3 March 2022, 09:00-12:30

Registration

To register, please fill in the

Registration form

Questions

Questions regarding this course should be directed to LUNARC, see the LUNARC contact information page.