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）Modern programming languages for HEP-booklet

1 Why python and C++ Pros and Cons of each language Respective usecases 2 C ++getting usable Language “simplifications” Making bad code harder to write 3 Performant C++ New performance related features Templates Avoiding virtuality when possible 4 Migrating from Python 2 to python 3 Tour of python 3 changes How to support both versions How to migrate 5 Conclusion

1 Introduction 2 Measuring vectorization 3 Vectorization Prerequisite 4 Vectorizing techniques in C++ Autovectorization Inline assembly Intrinsics Compiler extensions Libraries 5 What to expect ?

1 Introduction 2 Measuring vectorization 3 Vectorization Prerequisite 4 Vectorizing techniques in C++ Autovectorization Inline assembly Intrinsics Compiler extensions Libraries 5 What to expect ?

Intro Threading Safety Solutions 1 Introduction and expectations Scope : what is parallelism ? Finding parallelism Expectations 2 Threading, theory and practice Processes and threads Python threading C ++threading and async 3 Thread-safety issues Data races Thread safety 4 Thread-safety solutions Avoid the problem Replicate Atomics Locking

Intro Threading Safety Solutions 1 Introduction and expectations Scope : what is parallelism ? Finding parallelism Expectations 2 Threading, theory and practice Processes and threads Python threading C ++threading and async 3 Thread-safety issues Data races Thread safety 4 Thread-safety solutions Avoid the problem Replicate Atomics Locking

中国科学院高能所计算中心：数据技术上机 Data Technologies – CERN School of Computing 2019

1. IO system • What do you know already? • IOPS, bandwidth, latency & blocksize • media and their characteristics • cache & IO optimisation strategies • how to debug IO problems 2. Redundancy Technology • Parity for RAID technology 3. Cloud Storage Technology • Scalability, Hashing, Indexing,, Deduplication

⚫需求和挑战 ⚫高能所计算中心的海量存储系统 ◼ 分布式文件系统 ◼ 磁带管理系统，备份系统，软件存储系统,个人云存储 … ◼ 访问接口和使用建议 ⚫分布式环境下的数据管理技术 ⚫更详细的课程及课件 ⚫问题和反馈

• 概述 • 插入排序 • 快速排序 • 交换排序（起泡排序） • 选择排序 • 归并排序