Proceedings of the 19th Panhellenic Conference on Informatics最新文献_第2页

Towards a computational processing of oral dialectal data 口述方言数据的计算处理

Proceedings of the 19th Panhellenic Conference on Informatics Pub Date : 2015-10-01 DOI: 10.1145/2801948.2801966

N. Karanikolas, E. Galiotou, D. Papazachariou, Konstantinos Athanasakos, G. Koronakis, A. Ralli

引用次数: 1

Abstracting BPMN models 抽象BPMN模型

Proceedings of the 19th Panhellenic Conference on Informatics Pub Date : 2015-10-01 DOI: 10.1145/2801948.2802035

Christina Tsagkani, A. Tsalgatidou

引用次数: 5

An automated network intrusion process and countermeasures 一个自动化的网络入侵过程和对策

Proceedings of the 19th Panhellenic Conference on Informatics Pub Date : 2015-10-01 DOI: 10.1145/2801948.2802001

Valkaniotis Tilemachos, C. Manifavas

引用次数: 4

Fifty years of evolution in virtualization technologies: from the first IBM machines to modern hyperconverged infrastructures 虚拟化技术五十年的发展历程:从第一台IBM机器到现代超融合基础设施

Proceedings of the 19th Panhellenic Conference on Informatics Pub Date : 2015-10-01 DOI: 10.1145/2801948.2802039

N. Koziris

{"title":"Fifty years of evolution in virtualization technologies: from the first IBM machines to modern hyperconverged infrastructures","authors":"N. Koziris","doi":"10.1145/2801948.2802039","DOIUrl":"https://doi.org/10.1145/2801948.2802039","url":null,"abstract":"The evolution of virtualization is an exciting history of enabling technologies that have offered the ability to organize and utilize the hardware resources more efficiently. We will start from the origins of the first IBM machines back in 1960's, where the notion of virtualization was originally introduced to partition the hardware resources more efficiently. This was well before the onset of the majority of the operating systems in the early 1970's, which were initially introduced as a software alternative to partition and expose hardware resources to multiple users. In the late 1980's and 1990's the software hypervisors allowed the multiplexing of PC hardware and enabled the use of virtual machines, which in the 2000's became a commodity that needed to be efficiently orchestrated and provisioned in bulk. The IaaS cloud era had arrived, bringing more interesting challenges for the dynamic, thin provisioning of hardware and software resources to applications. Nowadays, we are living in the times of \"software defined everything\". We have hyper-convergence in all our datacenter infrastructures, where all compute, network and storage resources are controlled by software. The talk will present this exciting long technology journey that started more than 50 years ago and still continues, always driven by the notion of virtualizing expensive hardware resources to multiple users.","PeriodicalId":305252,"journal":{"name":"Proceedings of the 19th Panhellenic Conference on Informatics","volume":"123 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126708222","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

Performance and power simulation of a functional-unit-network processor with simplescalar and wattch 基于simplescalar和watch的功能单元网络处理器的性能和功耗仿真

Proceedings of the 19th Panhellenic Conference on Informatics Pub Date : 2015-10-01 DOI: 10.1145/2801948.2801958

Kleovoulos Kalaitzidis, Georgios Dimitriou, G. Stamoulis, Michael F. Dossis

{"title":"Performance and power simulation of a functional-unit-network processor with simplescalar and wattch","authors":"Kleovoulos Kalaitzidis, Georgios Dimitriou, G. Stamoulis, Michael F. Dossis","doi":"10.1145/2801948.2801958","DOIUrl":"https://doi.org/10.1145/2801948.2801958","url":null,"abstract":"Loop acceleration is a means to enhance performance of a single- or multiple-issue microprocessor core. A new edge-like processor architecture incorporates a loop accelerator directly in the out-of-order back end of the processor, forming an extended hypercube interconnected network of functional unit nodes. In this work, we have simulated a full processor pipeline of our architecture in a high-level language. In particular, we have extended the Simplescalar, a well-known processor simulator, to include our multifunctional-unit back-end design, and to support our special instructions for loop acceleration. Thus, instructions forming qualified loops are scheduled and dispatched only once for execution, remaining in the back end for all loop iterations, interchanging values in a data-flow fashion. We have also utilized the Wattch power estimation tool, which has been traditionally coupling Simplescalar to produce an estimation of power consumption during simulation, to show that our design results in significant power savings. Since loop instructions reside in the functional unit nodes during loop execution, all front end of the pipeline is turned off and the register file and the instruction cache are kept at low power at that time. Experiments conducted include simulating execution of small loop-based benchmarks from the Livermore loops, as well as longer real-life code taken from open-source mpeg video compression codes. All experiments exhibit the expected performance and power consumption improvements, verifying earlier performance measurements on the HDL model of the back end.","PeriodicalId":305252,"journal":{"name":"Proceedings of the 19th Panhellenic Conference on Informatics","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126619780","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: 3

Energy-efficient virtual machine provisioning mechanism in cloud computing environments 云计算环境下节能的虚拟机发放机制

Proceedings of the 19th Panhellenic Conference on Informatics Pub Date : 2015-10-01 DOI: 10.1145/2801948.2801989

Dimitra Panagiotou, Efthymios Oikonomou, A. Rouskas

引用次数: 4

HoneyCY: a configurable unified management framework for open-source honeypot services HoneyCY:开源蜜罐服务的可配置统一管理框架

Proceedings of the 19th Panhellenic Conference on Informatics Pub Date : 2015-10-01 DOI: 10.1145/2801948.2802021

Andreas Christoforou, K. H. Gjermundrød, I. Dionysiou

引用次数: 5

Scan chain based at-speed diagnosis in the presence of scan output compaction schemes 扫描输出压缩方案下基于扫描链的高速诊断

Proceedings of the 19th Panhellenic Conference on Informatics Pub Date : 2015-10-01 DOI: 10.1145/2801948.2801956

Helen-Maria Dounavi, Y. Tsiatouhas, A. Arapoyanni

引用次数: 0

An investigation of the suitability of heterogeneous social network data for use in mobile tourist guides 移动导游使用异构社会网络数据的适用性调查

Proceedings of the 19th Panhellenic Conference on Informatics Pub Date : 2015-10-01 DOI: 10.1145/2801948.2801970

Georgios I. Papadimitriou, Andreas Komninos, J. Garofalakis

引用次数: 2

The RoadRunner framework for efficient and scalable processing of big data RoadRunner框架用于高效和可扩展的大数据处理

Proceedings of the 19th Panhellenic Conference on Informatics Pub Date : 2015-10-01 DOI: 10.1145/2801948.2801963

C. Doulkeridis, Akrivi Vlachou, Panagiotis Nikitopoulos, Panagiotis Tampakis, Mei Saouk

引用次数: 1