Automated derivation of NoC Communication Specifications from Application Constraints

Samuel Evain (1) , Jean-Philippe Diguet (2) , Milad Elkhodary (1) , Dominique Houzet (3)

1 LESTER - Laboratoire d'Electronique des Systèmes TEmps Réel
2 Lab-STICC_UBS_CACS_MOCS
3 IETR - Institut d'Electronique et de Télécommunications de Rennes

This paper focuses on the highest step of our NoC design flow, which addresses the efficient deployment of real applications over an ad hoc NoC. At this level we propose a methodology and a tool to decide the NoC parameters and to generate the path coding within network interfaces for guarantied and best effort communications. The originality of our approach is based on two points. First our tool includes a derivation technique to obtain NoC communication constraints (latency, bandwidth) from application designer knowledge (application throughput). Secondly, the decision tool explores a 3D graph (t,x,y) for path allocation while taking into account mutual exclusion and global latency for FIFO minimisation under time constraints. This paper illustrates the first point. Two real applications: smart camera and multiprocessor turbo-decoder are presented to illustrate the design flow.

Mots clés: Network on chip; turbo-codes; constraint derivation; mutual exclusions

Domaines: Architectures Matérielles [cs.AR]

Samuel Evain, Jean-Philippe Diguet, Milad Elkhodary, Dominique Houzet. Automated derivation of NoC Communication Specifications from Application Constraints. IEEE 2006 Workshop on Signal Processing Systems (SiPS'06), Oct 2006, France. ⟨hal-00106147⟩