MIN-Graph: A Tool for Monitoring and Visualizing MIN-Based Multiprocessor Performance

A Multistage Interconnection Network (MIN) makes it possible to build large-scale shared-memory multiprocessor systems. To provide insight into dynamic system performance, we have developed an integrated data collection, analysis, and data visualization environment for a MIN-based multiprocessor system, called MIN-Graph. MIN-Graph is a graphical instrumentation monitor to aid users in investigating performance problems and in determining an eeective way of exploiting the high performance capabilities of interconnection network multiprocessor systems. Our monitor measures, analyzes, evaluates and displays the events, performance and overhead of interprocessor communication, process scheduling, remote-memory access, network contention and others on a MIN-based multiprocessor. The graphical monitor is X-window based and implemented on the BBN GP1000 and the BBN TC2000.