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Programming for observability support in a parallel programming environment

The programming for observability concept for performance/correctness debugging in a parallel programming environment is introduced. The design, first implementation, and evaluation of the required language and system support is presented. A two dimensional, multilevel, integrated monitoring system is described. Distinction is made between the monitoring mechanism, monitoring policies and their implementation tradeoffs. PIEMON-1, an initial implementation of the presented design is outlined and evaluated.