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Full-Text Articles in Computer Engineering
A Comparison Of X86 Computer Architecture Simulators, Ayaz Akram, Lina Sawalha
A Comparison Of X86 Computer Architecture Simulators, Ayaz Akram, Lina Sawalha
Faculty Research and Creative Activities Award (FRACAA)
Computer architecture simulators are widely used to evaluate different design options and tradeoffs. This work explores different x86 computer architecture simulators and shows the experimental error of the simulators compared to real hardware runs. We selected gem5, Sniper, MARSSx86 and Zsim, and configured them to model one of the state-of-the- art high-performance processors, Intel’s Haswell microarchitecture. We compared simulators features and statistics, and quantified the experimental error of simulators for single- and multi-core runs compared to a real hardware platform. Finally, we pointed some causes of inaccuracies resulted by the simulators.
Power-Efficient And Highly Scalable Parallel Graph Sampling Using Fpgas, Usman Tariq, Umer Cheema, Fahad Saeed
Power-Efficient And Highly Scalable Parallel Graph Sampling Using Fpgas, Usman Tariq, Umer Cheema, Fahad Saeed
Parallel Computing and Data Science Lab Technical Reports
Energy efficiency is a crucial problem in data centers where big data is generally represented by directed or undirected graphs. Analysis of this big data graph is challenging due to volume and velocity of the data as well as irregular memory access patterns. Graph sampling is one of the most effective ways to reduce the size of graph while maintaining crucial characteristics. In this paper we present design and implementation of an FPGA based graph sampling method which is both time- and energy-efficient. This is in contrast to existing parallel approaches which include memory-distributed clusters, multicore and GPUs. Our …
A Comparison Of X86 Computer Architecture Simulators, Ayaz Akram, Lina Sawalha
A Comparison Of X86 Computer Architecture Simulators, Ayaz Akram, Lina Sawalha
Computer Architecture and Systems Research Laboratory (CASRL)
The significance of computer architecture simulators in advancing computer architecture research is widely acknowledged. Computer architects have developed numerous simulators in the past few decades and their number continues to rise. This paper explores different simulation techniques and surveys many simulators. Comparing simulators with each other and validating their correctness has been a challenging task. In this paper, we compare and contrast x86 simulators in terms of flexibility, level of details, user friendliness and simulation models. In addition, we measure the experimental error and compare the speed of four contemporary x86 simulators: gem5, Sniper, Multi2sim and PTLsim. We also discuss …
Gpu-Arraysort: A Parallel, In-Place Algorithm For Sorting Large Number Of Arrays, Muaaz Awan, Fahad Saeed
Gpu-Arraysort: A Parallel, In-Place Algorithm For Sorting Large Number Of Arrays, Muaaz Awan, Fahad Saeed
Parallel Computing and Data Science Lab Technical Reports
Modern day analytics deals with big datasets from diverse fields. For many application the data is in the form of an array which consists of large number of smaller arrays. Existing techniques focus on sorting a single large array and cannot be used for sorting large number of smaller arrays in an efficient manner. Currently no such algorithm is available which can sort such large number of arrays utilizing the massively parallel architecture of GPU devices. In this paper we present a highly scalable parallel algorithm, called GPU-ArraySort, for sorting large number of arrays using a GPU. Our algorithm performs …