A Grid service for management of multiple HLA federate processes

The subject of this paper is a Grid management service called HLA-Speaking Service that interfaces an actual High Level Architecture (HLA) application with the Grid HLA Management System (GHMS). HLA-Speaking Service is responsible for execution of an application code on the site it resides and manages multiple federate processes. The design of the architecture is based on the OGSA concept that allows for modularity and compatibility with Grid Services already being developed. We present the functionality of the Service with an example of N-body simulation of dense stellar system.