Monitoring and performance analysis of grid applications

This paper presents main ideas and design details of a performance analysis tool - G-PM and a grid application monitoring system - OCM-G for applications running on the Grid which are under development within the EU CrossGrid project. Besides of the operation of G-PM's components, we overview its internal interfaces. G-PM enables not only standard measurements, but also comprises application-specific metrics and high-level measurements. The OCM-G is aimed to provide services via which tools supporting application development are enabled to gather information, manipulate, and detect events that occur when applications are running. The functionality of the OCM-G is available via a standardized interface, On-line Monitoring Interface Specification (OMIS).