2018 International Conference on High Performance Computing & Simulation (HPCS)最新文献_第10页

Nonlinear Modelling of RF GaN Devices and Utilization in RF Power Amplifiers for 4G Applications 射频GaN器件的非线性建模及其在4G应用射频功率放大器中的应用

2018 International Conference on High Performance Computing & Simulation (HPCS) Pub Date : 2018-07-01 DOI: 10.1109/HPCS.2018.00026

AbdelazizM. Abdelbar, A. El-Tager

引用次数: 0

Scalability of Hybrid Sparse Matrix Dense Vector (SpMV) Multiplication 混合稀疏矩阵密集向量(SpMV)乘法的可扩展性

2018 International Conference on High Performance Computing & Simulation (HPCS) Pub Date : 2018-07-01 DOI: 10.1109/HPCS.2018.00072

Brian A. Page, P. Kogge

引用次数: 14

Impact of Vectorization and Multithreading on Performance and Energy Consumption on Jetson Boards 矢量化和多线程对捷迅板性能和能耗的影响

2018 International Conference on High Performance Computing & Simulation (HPCS) Pub Date : 2018-07-01 DOI: 10.1109/HPCS.2018.00055

S. Jubertie, Emmanuel Melin, Naly Raliravaka, E. Bodèle, P. E. Bocanegra

{"title":"Impact of Vectorization and Multithreading on Performance and Energy Consumption on Jetson Boards","authors":"S. Jubertie, Emmanuel Melin, Naly Raliravaka, E. Bodèle, P. E. Bocanegra","doi":"10.1109/HPCS.2018.00055","DOIUrl":"https://doi.org/10.1109/HPCS.2018.00055","url":null,"abstract":"ARM processors are well known for their energy efficiency and are consequently widely used in embedded platforms. Like other processor architectures, they are built with different levels of parallelism, from Instruction Level Parallelism (out-of- order and superscalar capabilities) to Thread Level Parallelism (multicore), to increase their performance levels. These processors are now also targeting the HPC domain and will equip the Fujitsu Post-K supercomputer. Some ARM processors from the Cortex-A series, which equip smartphones and tablets, also provide Data Level Parallelism through SIMD units called NEON. These units are able to process 128-bit of data at a time, for example four 32bit floating point values. Taking advantage of these units requires code vectorization which may be performed automatically by the compiler or explicitly by using NEON intrinsics. Exploiting all these levels of parallelism may lead to better performance as well as a higher energy consumption. This is not an issue in the HPC domain where application development is driven by finding the best performance. However, developing for embedded applications is driven by finding the best trade-off between energy consumption and performance. In this paper, we propose to study the impact of vectorization and multithreading on both performance and energy consumption on some Nvidia Jetson boards. Results show that depending on the algorithm and on its implementation, vectorization may bring a similar speedup as an OpenMP scalar implementation but with a lower energy consumption. However, combining vectorization and multithreading may lead close to both the best performance level and the lowest energy consumption but not when running cores at their maximum frequencies.","PeriodicalId":308138,"journal":{"name":"2018 International Conference on High Performance Computing & Simulation (HPCS)","volume":"31 35","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113941297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

GPU-Accelerated Simulation of Elastic Wave Propagation 弹性波传播的gpu加速模拟

2018 International Conference on High Performance Computing & Simulation (HPCS) Pub Date : 2018-07-01 DOI: 10.1109/HPCS.2018.00044

Kristian Kadlubiak, J. Jaros, B. Treeby

引用次数: 3

3D-Printed Low-Cost and Lightweight TEM Cell 3d打印低成本和轻量化TEM电池

2018 International Conference on High Performance Computing & Simulation (HPCS) Pub Date : 2018-07-01 DOI: 10.1109/HPCS.2018.00022

Ali Al Takach, F. Ndagijimana, J. Jomaah, M. Al‐Husseini

引用次数: 4

A Novel Model to Computational Offloading on Autonomic Managers: a Mobile Test Bed 自主管理器计算卸载的新模型:移动测试平台

2018 International Conference on High Performance Computing & Simulation (HPCS) Pub Date : 2018-07-01 DOI: 10.1109/HPCS.2018.00040

Guilherme A. Borges, Rômulo Reis de Oliveira, T. Ferreto, C. Geyer

引用次数: 0

Towards Model Checking Security of Real Time Java Software 实时Java软件安全性模型检测研究

2018 International Conference on High Performance Computing & Simulation (HPCS) Pub Date : 2018-07-01 DOI: 10.1109/HPCS.2018.00106

L. Spalazzi, Francesco Spegni, Giovanni Liva, M. Pinzger

引用次数: 6

Fast Computation of High-resolution Solvent Excluded Protein Surface with OpenMP 用OpenMP快速计算高分辨率溶剂排除蛋白表面

2018 International Conference on High Performance Computing & Simulation (HPCS) Pub Date : 2018-07-01 DOI: 10.1109/HPCS.2018.00127

Sebastian Daberdaku, Carlo Ferrari

{"title":"Fast Computation of High-resolution Solvent Excluded Protein Surface with OpenMP","authors":"Sebastian Daberdaku, Carlo Ferrari","doi":"10.1109/HPCS.2018.00127","DOIUrl":"https://doi.org/10.1109/HPCS.2018.00127","url":null,"abstract":"The solvent-excluded surface of proteins is extremely useful when studying their properties and interactions as it represents the portion of the outer protein contour that is available to interact with the solvent and other molecules. Given their simplicity and ability to represent geometrical and physico- chemical properties of proteins, voxelised surface representations have received a lot of interest in bioinformatics and computational biology applications such as protein-protein docking, interaction interface prediction and ligand-binding pocket prediction. Computing voxelised surfaces for large proteins can be challenging, as space-demanding data structures with associated high computational costs are required. In this paper we present a fast, OpenMP-based parallel algorithm for the computation of high-resolution voxelised solvent-excluded protein surfaces. The methodology is based on a region-growing implementation of the approximate Euclidean Distance Transform algorithm with Hierarchical Queues. The geometrical relationship between the solvent-accessible and solvent-excluded surfaces allows us to obtain the latter very efficiently by computing distance map values only for a small subset of the overall voxels representing the protein. The algorithm computes the contribution to the overall outer surface for each atom in parallel. The proposed methodology was experimentally compared to two previous MPI- based parallel implementations showing overall better speedup and efficiency metrics as well as lower surface computation times.","PeriodicalId":308138,"journal":{"name":"2018 International Conference on High Performance Computing & Simulation (HPCS)","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128354363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

A Selective and Incremental Backup Scheme for Task Pools 任务池的选择性增量备份方案

2018 International Conference on High Performance Computing & Simulation (HPCS) Pub Date : 2018-07-01 DOI: 10.1109/HPCS.2018.00103

Claudia Fohry, Jonas Posner, Lukas Reitz

{"title":"A Selective and Incremental Backup Scheme for Task Pools","authors":"Claudia Fohry, Jonas Posner, Lukas Reitz","doi":"10.1109/HPCS.2018.00103","DOIUrl":"https://doi.org/10.1109/HPCS.2018.00103","url":null,"abstract":"Checkpointing is a common approach to prevent loss of a program's state after permanent node failures. When it is performed on application-level, less data need to be saved. This paper suggests an uncoordinated application-level checkpointing technique for task pools. It selectively and incrementally saves only those tasks that have stayed in the pool during some period of time and that have not been saved before. The checkpoints are held in a resilient in-memory data store. Our technique applies to any task pool variant in which workers operate at the top of local pools, and work stealing operates at the bottom. Furthermore, the tasks must be free of side effects, and the final result must be calculated by reduction from individual task results. We implemented the technique for the lifeline-based global load balancing variant of task pools. This variant couples random victim selection with an overlay graph for termination detection. A fault-tolerant realization already exists in the form of a Java library, called JFT_GLB. It uses the APGAS and Hazelcast libraries underneath. Our implementation modifies JFT_GLB by replacing its nonselective checkpointing scheme with our new one. In experiments, we compared the overhead of the new scheme to that of JFT_GLB, with UTS, BC and two synthetic benchmarks. The new scheme required slightly more running time when local pools were small, and paid off otherwise.","PeriodicalId":308138,"journal":{"name":"2018 International Conference on High Performance Computing & Simulation (HPCS)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128536605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Parallelism on Hybrid Metaheuristics for Vector Autoregression Models 向量自回归模型混合元启发式的并行性

2018 International Conference on High Performance Computing & Simulation (HPCS) Pub Date : 2018-07-01 DOI: 10.1109/HPCS.2018.00134

A. Castaño, J. Cuenca, José-Matías Cutillas-Lozano, D. Giménez, J. López-Espín, A. Pérez-Bernabeu

引用次数: 1