What is new in OpenMP 4.5

A new version of the OpenMP standard, 4.5, has been released in November 2015 and brings several new constructs to the users. OpenMP is an API consisting of compiler directives and library routines for high level parallelism in C, C++ and Fortran programs. The upcoming version of GCC adds support for this newest version of the standard.

This post highlights some of the latest features, changes, and “gotcha’s” to look out for.

Continue reading “What is new in OpenMP 4.5”

Share

5 things you need to know about GCC 5 – Developer Toolset Beta

As always when we rebase GCC in Developer Toolset (as we announced yesterday) to a new major upstream release, there are  a huge number of bugfixes, performance improvements, quality of implementation enhancements – the list goes on. In this article, however, I’d like to focus on four headline features and one new way of using the tools. Let’s dive in.

Continue reading “5 things you need to know about GCC 5 – Developer Toolset Beta”

Share

OpenMP 4.0 support in Developer Toolset 3 Beta — Parallel programming extensions for today’s architectures

In this article, we’ll take a look at the OpenMP parallel programming extensions to C, C++ and Fortran – OpenMP 4.0. These are available out of the box in GCC v4.9.1, available to Red Hat Enterprise Linux developers via Red Hat Developer Toolset v3.0 (currently at beta release).

For a thorough backgrounder in parallelism and concurrency programming concepts, see Torvald Riegel’s earlier articles (part 1 and part 2). In this article, we’ll instead dig into the nuts and bolts of what OpenMP v4 provides to developers, and how it works in practice in GCC.

Continue reading “OpenMP 4.0 support in Developer Toolset 3 Beta — Parallel programming extensions for today’s architectures”

Share