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The latest advances in the High Performance Computing hardware have significantly raised the level of available compute performance. At the same time, the growing hardware capabilities of modern supercomputing architectures have caused an increasing complexity of the parallel application development. Despite numerous efforts to improve and simplify parallel programming, there is still a lot of manual debugging and  tuning work required. This process  is supported by special software tools, facilitating debugging, performance analysis, and optimization and thus  making a major contribution to the development of  robust and efficient parallel software. This book introduces a selection of the tools, which were presented and discussed at the 6th International Parallel Tools Workshop, held in Stuttgart, Germany, 25-26 September 2012.

Cloud computing -- Research. --- Computational grids (Computer systems). --- High performance computing -- Research. --- High performance computing --- Mathematics --- Physical Sciences & Mathematics --- Mathematics - General --- Mathematics. --- Operating systems (Computers) --- Computer science. --- Informatics --- Computer operating systems --- Computers --- Disk operating systems --- Math --- Operating systems --- Computer software --- Computer programming. --- Application software. --- Computer mathematics. --- Computational Science and Engineering. --- Performance and Reliability. --- Programming Techniques. --- Computer Applications. --- Reusability. --- Science --- Systems software --- Operating systems (Computers). --- Computer software—Reusability. --- Application computer programs --- Application computer software --- Applications software --- Apps (Computer software) --- Electronic computer programming --- Electronic data processing --- Electronic digital computers --- Programming (Electronic computers) --- Coding theory --- Computer mathematics --- Programming --- Reusability of software --- Reusable code (Computer programs) --- Software reusability --- Software reengineering --- Generic programming (Computer science)

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The proceedings of the 5th International Workshop on Parallel Tools for High Performance Computing provide an overview on supportive software tools and environments in the fields of System Management, Parallel Debugging and Performance Analysis. In the pursuit to maintain exponential growth for the performance of high performance computers the HPC community is currently targeting Exascale Systems. The initial planning for Exascale already started when the first Petaflop system was delivered. Many challenges need to be addressed to reach the necessary performance. Scalability, energy efficiency and fault-tolerance need to be increased by orders of magnitude. The goal can only be achieved when advanced hardware is combined with a suitable software stack. In fact, the importance of software is rapidly growing. As a result, many international projects focus on the necessary software.

Cloud computing -- Research. --- Computational grids (Computer systems). --- Computer science. --- Computer software. --- Computer system performance. --- Data mining. --- High performance computing -- Research. --- Operating systems (Computers). --- Engineering & Applied Sciences --- Computer Science --- High performance computing --- Parallel programming (Computer science) --- Computer software --- Computer system failures. --- Programming languages (Electronic computers). --- Algorithms. --- Application software. --- Computer Science. --- System Performance and Evaluation. --- Performance and Reliability. --- Programming Languages, Compilers, Interpreters. --- Algorithm Analysis and Problem Complexity. --- Data Mining and Knowledge Discovery. --- Computer Applications. --- Reusability. --- Algorithmic knowledge discovery --- Factual data analysis --- KDD (Information retrieval) --- Knowledge discovery in data --- Knowledge discovery in databases --- Mining, Data --- Database searching --- Software, Computer --- Computer systems --- Computer operating systems --- Computers --- Disk operating systems --- Systems software --- Informatics --- Science --- Operating systems --- Computer software—Reusability. --- Application computer programs --- Application computer software --- Applications software --- Apps (Computer software) --- Algorism --- Algebra --- Arithmetic --- Computer languages --- Computer program languages --- Computer programming languages --- Machine language --- Electronic data processing --- Languages, Artificial --- Computer failures --- Computer malfunctions --- Failure of computer systems --- System failures (Engineering) --- Fault-tolerant computing --- Foundations --- Failures --- Reusability of software --- Reusable code (Computer programs) --- Software reusability --- Software reengineering --- Generic programming (Computer science)