Ronny Tschüter

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This paper gives an overview about the Score-P performance measurement infrastructure which is being jointly developed by leading HPC performance tools groups. It motivates the advantages of the joint undertaking from both the developer and the user perspectives, and presents the design and components of the newly developed Score-P performance measurement(More)
In this paper we study the correlation of node failures in time and space. Our study is based on measurements of a production high performance computer over an 8-month time period. We draw possible types of correlations between node failures and show that, in many cases, there are direct correlations between observed node failures. The significance of such(More)
OpenCL is an open standard for programming of parallel heterogeneous systems. It is designed for portability, therefore being utilized in the area of embedded system programming as well as high performance computing (HPC). Due to the applicability on different platforms, OpenCL library vendors have a certain freedom in implementing parts of the OpenCL(More)
The identification of performance bottlenecks in parallel applications is a challenging task. Without some form of performance measurement tool, this task lacks any guidance and purely relies on trial-and-error. At the same time, data sets from parallel performance measurements are often large and overwhelming. We provide an effective solution to(More)
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