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Summary: UNISIM: An Open Simulation Environment and
Library for Complex Architecture Design and
Collaborative Development
David August, Jonathan Chang, Sylvain Girbal, Daniel Gracia-Perez, Gilles Mouchard, David Penry§, Olivier
Temam, Neil Vachharajani
INRIA, Orsay, France
Dept. of Computer Science, Princeton University, Princeton, New Jersey
CEA, Gif-Sur-Yvette, France
§ Dept. of Electrical and Computer Engineering, Brigham Young University, Provo, Utah
Abstract--Simulator development is already a huge burden
for many academic and industry research groups; future com-
plex or heterogeneous multi-cores, as well as the multiplicity
of performance metrics and required functionality, will make
matters worse. We present a new simulation environment, called
UNISIM, which is designed to rationalize simulator development
by making it possible and efficient to distribute the overall effort
over multiple research groups, even without direct cooperation.
UNISIM achieves this goal with a combination of modular soft-
ware development, distributed communication protocols, multi-
level abstract modeling, interoperability capabilities, a set of
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