Hpc Evolution of the Telemac System

C. Moulinec

Wednesday 1 july 2015

11:40 - 12:00h at Europe 1 & 2 (level 0)

Themes: (T) Special session

Parallel session: 9E. Special Session: Jean Michel Hervouet

This extended abstract presents the work undertaken at STFC Daresbury Laboratory in the last 7 years, pushing the HPC limits of the TELEMAC system and focusing on the performance of some of its key modules, i.e. TELEMAC-2D and TELEMAC-3D for 2-D and 3-D hydrodynamics respectively, TOMAWAC for wave propagation and SISPYHE for sediment transport. Very large 2-D horizontal meshes are generated by mesh multiplication and the largest one used here contains about 200 million elements. TELEMAC-2D has demonstrated very good scalability using this mesh. TOMAWAC, TELEMAC-3D and SISYPHE have been internally coupled and the triple coupling has demonstrated good performance on a few thousands of processors using a 10 million 2-D element mesh. Finally, task farming has been used to carry out sensitivity studies using TOMAWAC and TELEMAC-3D and its performance assessed.