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Energy efficiency has become a primary concern for data centers in recent years. Understanding where the energy has been spent within a software is fundamental for energy-efficiency study as a whole. In this paper, we take the first step towards this direction by building an energy profiling module on top of IgProf. IgProf is an application profiler developed at CERN for scientific computing workloads...
LIKWID is a set of performance-related command line tools targeting X86 processors. Besides affinity-related tools it also includes likwid-perfctr, which allows to count hardware performance events. LIKWID builds upon the Linux msr kernel module, which allows to access model-specific registers (MSRs) via a device file interface. In addition to a set of convenient functional features such as a logical...
Usage of GPU-based architectures for scientific computing has been steadily increasing in the last years. This new paradigm for both programming and execution has been applied to solve several classic problems much faster than using the conventional multiprocessor and/or multicomputer approach. These architectures allow an increase in performance -- compared to conventional CPU processors -- for specific...
This paper deals with the binary analysis of executable programs, with the goal of understanding how they access memory. It explains how to statically build a formal model of all memory accesses. Starting with a control-flow graph of each procedure, well-known techniques are used to structure this graph into a hierarchy of loops in all cases. The paper shows that much more information can be extracted...
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