tailieunhanh - DISTRIBUTED AND PARALLEL SYSTEMSCLUSTER AND GRID COMPUTING 2005 phần 5

Bài viết mô tả hai chế độ làm việc của các cơ chế song song chương trình checkpointing P-LỚP và ứng dụng tiềm năng của nó trong toàn quốc ClusterGrid Hungary (CG) dự án. Kiến trúc thế hệ đầu tiên của ClusterGrid cho phép sự di cư của các quá trình song song giữa các hồ Condor thân thiện. | 80 DISTRIBUTED AND PARALLEL SYSTEMS dark grey and black bars denote comm times of send and receive events respectively the grey horicontal lines indicate the time-lines for the particular processes Figure 5. VisWiz module showing execution times of send and receive events Figure 6. Event graph visualization once in running mode once in stopped mode 5. Conclusions and Future Work Apart from DeWiz s programming paradigm independency its modular attempt makes it predestinated to cope with demands brought with newer computing environments like the Grid. Modules can be arranged arbitrarily . in the sample DeWiz system outlined in Section 3 the OpenMP module could be placed at an OpenMP-friendly computing architecture while the program visualization could be done on a simple low-end PC. Basic improvements compared to earlier DeWiz versions have been made in the area of program visualization. The corresponding module VisWiz introduced in Section 4 offers completely user-defined visualizations in a very easy way. At the moment our efforts are concentrated in adapting the DeWiz framework to run on a gridbased environment additionally the pattern matching module is extended to present detected patterns in a more intuitive way. Acknowledgements. Thanks to Roland Wismuller for his input to the OCM related DeWiz modules. Furthermore our colleagues at GUP Linz provided Monitoring and Program Analysis Activities with DeWiz 81 some valuable input to this work and we are most grateful to Michael Scarpa and Reinhard Brandstatter. References 1 Kacsuk P. Visual Parallel Programming on SGI Machines. Proc. of the SGI Users Conference Krakow Poland 2000 . 2 Kobler R. Kranzlmuller D. and Volkert J. Online Visualization of OpenMP Programs in the DeWiz Environment. Proc. of the 5th International Conference on Parallel Processing and Applied Mathematics PPAM 2003 Czestochowa Poland September 2003 . 3 Kranzlmuller D. Event Graph Analysis for Debugging Massively Parallel Programs. PhD .

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