New release of OmpSs-2

26 Jun 2018
The Programming Models group at BSC has published the second release of the OmpSs-2 programming model.

The INTERTWinE project is working to address interoperability issues which occur when using any of a specific set of API combinations. One of the APIs on which we focus is OmpSs.

The Programming Models group at BSC has just published the second release (version 18.06) of the OmpSs-2 programming model.

OmpSs-2 extends the tasking model of OmpSs/OpenMP to support both task nesting and fine-grained dependencies across different nesting levels. This enables the effective parallelisation of applications using a top-down methodology. In this release, the OmpSs-2 tasking model has been enhanced to better support hybrid (MPI+OmpSs-2) and heterogeneous (OmpSs-2+CUDA C kernels) programming.

Among the most prominent features introduced in this release of OmpSs-2, is the Task-Aware MPI (TAMPI) library. This MPI library, developed in the context of the INTERTWinE project (and available at, augments the interoperability features of MPI to enhance hybrid programming with tasking models such as OmpSs-2. This MPI library has been extended with a new MPI threading level - called MPI_TASK_MULTIPLE - that enables the safe use of synchronous and asynchronous MPI operations inside a task. This library relies on the Nanos6 pause/resume, external events and polling services APIs to provide this enhanced interoperability between MPI and OmpSs-2.

Read more here:

For more information about MPI + OmpSs hybrid programming, check out the INTERTWinE Resource Pack for MPI plus OpenMP Tasks / OmpSs, which aims to help developers create efficient and effective, capability-scale applications using MPI and either OpenMP Tasks or OmpSs - either to enhance existing (perhaps, MPI-only) software, or for new projects. 

OmpSs-2 logo

Last updated: 22 Nov 2018 at 10:15