Section: New Software and Platforms

TreeMatch

Keywords: Intensive parallel computing - High-Performance Computing - Hierarchical architecture - Placement

Scientific Description

TreeMatch provides a permutation of the processes to the processors/cores in order to minimize the communication cost of the application.

Important features are : the number of processors can be greater than the number of applications processes , it assumes that the topology is a tree and does not require valuation of the topology (e.g. communication speeds) , it implements different placement algorithms that are switched according to the input size.

Some core algorithms are parallel to speed-up the execution.

TreeMatch is integrated into various software such as the Charm++ programming environment as well as in both major open-source MPI implementations: Open MPI and MPICH2.

Functional Description

TreeMatch is a library for performing process placement based on the topology of the machine and the communication pattern of the application.

• Participants: Emmanuel Jeannot, François Tessier, Adele Villiermet, Guillaume Mercier and Pierre Celor

• Partners: CNRS - IPB - Université de Bordeaux

• Contact: Emmanuel Jeannot

• URL: http://treematch.gforge.inria.fr/