Bulakh B. Workflow infrastructure based on grid services composition for automated circuit design

This thesis is devoted to the problems of design of the architecture for circuit design software complexes based on service-oriented approach and novel methods for execution of calculations of design workflows and able to employ the advantages of grid computing to overcome resource limitations. General trends in development of automated circuit design complexes (CDC) architecture were analyzed, and the approach to development of the service-oriented architecture for these complexes based on workflow management system was investigated. The specifics of the existing classes of workflow management software for scientific, engineering and business applications were studied and issues connected with employing them for CDC were described. The current state of the art of grid technology for remote computing resources access is analyzed, as well as its ability to integrate with workflow management system. The method of organization of computations in CDC consisting of representation of the general abstract design workflow as the multilevel heterogeneous computing tasks workflows composed of operations of both remote high performance web and grid services was proposed. The architecture of the service-oriented complexes for circuit design using the dynamic remote web and grid services composition based on open SOA standards and specifications for automated execution of sequences of design procedures inside design workflows was developed. The method of execution time estimation for multilevel computational workflows composed from both generic web services and grid services was developed. Based on the methods provided the workflow management subsystem for circuit design workflows based on WSDL 1.1 and WS-BPEL 2.0 specifications which is able to support the automatic execution of heterogeneous computation scenarios was implemented and successfully integrated into the GridALLTED interdisciplinary simulation complex. Keywords: circuit design, computations management, workflows, grid computing, service-oriented architecture