Tag Archives: parallel computing

UnTRIM parallelization with message passing

Jacek A. Jankowski. UnTRIM parallelization with message passing, 2nd UnTRIM Workshop, Sirmione, 23-25 May 2005.

The main ideas behind the parallelisation of UnTRIM applying the domain decomposition method and the message passing (MPI) are discussed. The issues concerning the mesh partitioning, point-to-point communication over the mesh-overlapping areas (halos) for purely triangular and mixed (triangles and quadrangles) meshes and the problems connected with the Lagrangian advection scheme are thoroughly described. Continue reading →

Developments concerning parallel computing with the Telemac System

Jacek A. Jankowski. Developments concerning parallel computing with the Telemac System, 10th Telemac User Club, Chamrousse, 9-10 October 2003.

BAW is one of the a few Telemac users applying the code on high performance computers (HPC), presently all of them parallel, in their sites in Hamburg (SGI Origin 3000), Karlsruhe (SGI Origin 2000) and also by DWD in Offenbach (IBM RS/6000 SP). The presentation addresses the specific methodology, issues and developments concerning HPC: Continue reading →

Telemac auf Origin2000 — Erste Erfahrungen

Rebekka Kopmann and Jacek A. Jankowski

Telemac auf Origin2000 — Erste Erfahrungen. Supercomputing News 1/2000 (BAW Hamburg).

The article describes the hands-on experiences by changing the principal supercomputer architecture from the vector to the parallel one, connected with the purchase of a shared-memory parallel SGI Origin 2000 machine by BAW for its Karlsruhe site. Continue reading →

Telemac 5.0 — Eine konservative Revolution

Jacek A. Jankowski and Jean-Michel Hervouet

Telemac 5.0 — Eine konservative Revolution. Supercomputing News 4/1999, BAW Hamburg.

The article describes the re-implementation of the Telemac system software from Fortran-77 to Fortran-90 and changes in the code due to the much larger possibilities of the newer programming language.