title: Run-time interoperability between neuronal network simulators based on the MUSIC framework.
abstract: MUSIC is a standard API allowing large scale neuron simulators to exchange data within a parallel computer during runtime. A pilot implementation of this API has been released as open source. We provide experiences from the implementation of MUSIC interfaces for two neuronal network simulators of different kinds, NEST and MOOSE. A multi-simulation of a cortico-striatal network model involving both simulators is performed, demonstrating how MUSIC can promote inter-operability between models written for different simulators and how these can be re-used to build a larger model system. Benchmarks show that the MUSIC pilot implementation provides efficient data transfer in a cluster computer with good scaling. We conclude that MUSIC fulfills the design goal that it should be simple to adapt existing simulators to use MUSIC. In addition, since the MUSIC API enforces independence of the applications, the multi-simulation could be built from pluggable component modules without adaptation of the components to each other in terms of simulation time-step or topology of connections between the modules.
authors.affiliation: School of Computer Science and Communication, Royal Institute of Technology, Stockholm, Sweden. mikael@djurfeldt.com
authors.forename: Mikael
authors.initials: M
authors.lastname: Djurfeldt
authors.forename: Johannes
authors.initials: J
authors.lastname: Hjorth
authors.forename: Jochen M
authors.initials: JM
authors.lastname: Eppler
authors.forename: Niraj
authors.initials: N
authors.lastname: Dudani
authors.forename: Moritz
authors.initials: M
authors.lastname: Helias
authors.forename: Tobias C
authors.initials: TC
authors.lastname: Potjans
authors.forename: Upinder S
authors.initials: US
authors.lastname: Bhalla
authors.forename: Markus
authors.initials: M
authors.lastname: Diesmann
authors.forename: Jeanette Hellgren
authors.initials: JH
authors.lastname: Kotaleski
authors.forename: Orjan
authors.initials: O
authors.lastname: Ekeberg
mesh_terms: D000200:Action Potentials; D000818:Animals; D002540:Cerebral Cortex / Q000166:cytology / Q000502:physiology*; D003198:Computer Simulation; D003342:Corpus Striatum / Q000166:cytology; D006801:Humans; D008959:Models, Neurological; D016571:Neural Networks, Computer; D009434:Neural Pathways / Q000502:physiology; D009474:Neurons / Q000502:physiology; D012984:Software; D014584:User-Computer Interface