一、三重积分的概念 二、在直角坐标系下计算三重积分 三、小结

1.进一步理解元素法的思想,会用元素法建立数学模型 2.清楚地认识空间的三种坐标系,并会绘制三种坐标系的图形 3熟练掌握在三种坐标系下计算三重积分 4.熟练掌握使用 Mathematic软件计算三重积分

1 Storage devices Existing devices 2 Parallelizing files’ storage Striping Introduction to Map/Reduce 3 Risks of data loss and corruption 4 Data consistency Checksums Practical usage 5 Data safety Redundancy Parity Erasure coding 6 Conclusion

中国科学院：CERN专题计算学校《T-CSC数据存储》课程教学资源（讲义）Data storage and preservation-pres

1 Asynchronous I/O Latency Asynchronous I/O interfaces Message queues 2 I/O optimizations Optimizing network transfers Optimizing local transfers 3 Influence of data structures on I/O Measuring I/O efficiency of algorithms 4 Caching Principles Policies Distributed Caches 5 Conclusion

1 Asynchronous I/O Latency Asynchronous I/O interfaces Message queues 2 I/O optimizations Optimizing network transfers Optimizing local transfers 3 Influence of data structures on I/O Measuring I/O efficiency of algorithms 4 Caching Principles Policies Distributed Caches 5 Conclusion

1 Risks of data loss and corruption 2 Data consistency Checksums Block checksums 3 Data safety Redundancy Parity Erasure coding 4 Conclusion

1 Measuring Performance What is performance ? Tools available Finding bottlenecks 2 Code modernization 3 Improving Memory Handling Context Containers and memory Container reservation Detecting offending code 4 The nightmare of thread safety Context and constraints Identifying problems Solving problems Thread contention 5 Low level optimizations Scope and target How to measure ? Improving Vectorization promises 6 Conclusion

中国科学院：CERN专题计算学校《T-CSC数据存储》课程教学资源（讲义）Optimizing existing large codebase-pres

中国科学院：CERN专题计算学校《T-CSC数据存储》课程教学资源（讲义）Preserving data-pres