wiki:OpenMP

Version 2 (modified by Sebastian Huber, on 04/08/15 at 10:05:49) (diff)

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Table of Contents

  1. Tool Chain Requirements
  2. OpenMP Validation
  3. Performance Observations
  4. Open Issues

Tool Chain Requirements

OpenMP support for RTEMS is available in GCC 4.9.3, 5.1 or later. Currently is uses the POSIX configuration of libgomp. Thread-local storage is enabled using the local-exec model. A Newlib version after 2015-03-12 is required. To enable the OpenMP support for GCC add the --enable-libgomp option to the GCC configure command line.

OpenMP Validation

The ​OpenMP 3.1 Validation Suite was used to validate the OpenMP support. Due to some problems with this test suite results are currently not available. There are two related bug reports to GCC ​Bug 65385 and ​Bug 65386.

Performance Observations

Not yet available.

Open Issues

  • Atomic operations and OpenMP are not supported in GCC, see ​Bug 65467.