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"This book presents the state-of-the-art in simulation on supercomputers. Leading researchers present results achieved on systems of the Gauss-Allianz, the association of High-Performance Computing centers in Germany. The reports cover all fields of computational science and engineering, ranging from CFD to Computational Physics and Biology to Computer Science, with a special emphasis on industrially relevant applications. Presenting results for large-scale parallel microprocessor-based systems and GPU and FPGA-supported systems, the book makes it possible to compare the performance levels and usability of various architectures. Its outstanding results in achieving the highest performance for production codes are of particular interest for both scientists and engineers. The book includes a wealth of color illustrations and tables."

"ABSTRAKPada skripsi ini telah dibangun infrastruktur cloud dengan menggunakan Openstack platform. Openstack menjanjikan infrastruktur yang scalable yang menjadikan platform cloud ini digemari banyak pengguna cloud. Tujuan dari skripsi ini adalah untuk mempelajari kinerja jaringan OpenStack berdasarkan implementasi Neutron dan memberikan rekomendasi rancangan jaringan optimal untuk integrasi high performance computing. Parameter kinerja jaringan seperti throughput, packet loss dan latency akan dievaluasi berdasarkan transmisi data TCP dan UDP dengan menggunakan alat benchmark IPerf. Hasil dari eksperimen menunjukkan kinerja Openstack hampir tidak memiliki hambatan dalam penggunaan bandwidth jaringan. Hasil penelitian juga menunjukkan bahwa lokasi virtual machine di instansiasi dan alamat jaringan akan mempengaruhi kinerja jaringan. Skripsi ini juga akan membahas alur yang digunakan untuk menganalisa perbedaan hasil kinerja jaringan virtual machine pada cloud serta menampilkan hasil pengolahan data kinerja jaringan yang kemudian akan memberikan rancangan cloud yang optimal untuk integrasi high performance computing.

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ABSTRACTIn this thesis, a cloud infrastructure is built using Openstack platform. Openstack promises a scalable infrastructure that makes this platform as favourite for cloud users. The purpose of this thesis is to study the performance of Openstack network based on the implementation of Neutron to provide recommendations of the optimal network design for the integration of high performance computing. Network performance parameters such as throughput, packet loss and latency will be evaluated based on TCP and UDP transmission data using IPerf benchmarking tool. The result of the experiments show that Openstack performance have no network bandwidth bottleneck. The result also show that the location where virtual machine is instantiate and network address will affect network performance. This thesis will also discuss the flow used to analyze the differences in virtual machine network performance results in the cloud and display the results of virtual machine network performance which will then provide an optimal cloud design for the integration of high performance computing."

"ABSTRAKTeknologi di bidang perangkat lunak dan perangkat keras semakin berkembang cepat. Masalah keterbatasan kapasitas suatu komputer memicu berkembangnya sebuah inovasi yang disebut dengan High Performance Computing HPC . HPC merupakan sekumpulan komputer yang digabungkan dalam sebuah jaringan dan dikoordinasi oleh software khusus. Cloud Computing merupakan paradigma yang relatif baru dalam bidang komputasi. Pada penelitian ini dilakukan pengujian terhadap performansi High Performance Computing Cluster HPCC berbasis cloud menggunakan layanan OpenStack dalam menjalankan fungsi dasar Message Passing Interface. Pengujian dilakukan menggunakan program Mpptest dan SIMPLE-O. Penggunaan server yang tidak mendukung hypervisor KVM pada pengujian point-to-point communication dapat menurunkan performansi HPCC berbasis cloud sebesar 3,1 - 12,4 dibandingkan dengan HPCC berbasis non-cloud. Pada pengujian point-to-point communication dengan 2 server yang mendukung hypervisor KVM, HPCC berbasis cloud unggul dibandingkan HPCC berbasis non-cloud sebesar 1,6 ndash; 2,7 . Pada pengujian performansi HPCC dalam melakukan fungsi MPI collective communication tidak ditemukan perbedaan berarti antara kedua cluster dimana HPCC berbasis non-cloud mengungguli HPCC berbasis cloud sebesar 0 - 1,4 . Pada pengujian menggunakan program SIMPLE-O didapati performansi HPCC berbasis cloud dan non-cloud imbang jika semua instance dijalankan dengan server yang mendukung hypervisor KVM, apabila terdapat instance yang dijalankan server tanpa dukungan KVM maka HPCC berbasis non-cloud unggul 96,2 dibandingkan HPCC berbasis cloud. Ketersedian modul KVM pada server yang menjadi host suatu instance sangat berpengaruh terhadap performansi HPCC berbasis cloud.

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ABSTRACTSoftware and hardware technologies have been developing rapidly. Capacity limation problems found in computers triggered a development of a new innovation called High Performance Computing HPC . HPC is a cluster of computers in a network coordinated by a special software. Cloud Computing is a new paradigm in computation field. In this research, series of test are done to find out the performance of cloud and non cloud based High Performance Computing Cluster HPCC while running basic functions of Message Passing Interface. Tests are done using Mpptest and SIMPLE O program. By using a server that does not support KVM in point to point communication test could decrease the performance of cloud based HPCC by 3,1 to 12,4 compared to non cloud based HPCC. During the test of point to point communication using 2 servers that support KVM hypervisor, cloud based HPCC is ahead of non cloud based HPCC by 1,6 to 2,7 . During the test of collective communication, there are no significant differences between performances of the two cluster, with non cloud based HPCC is ahead by 0 to 1,4 compared to cloud based HPCC. During the test using SIMPLE O program, the two cluster is even in term of performance as long as every instance is run by servers that support KVM hypervisor, if there is an instance that is run by a server that does not support KVM hypervisor then the performance of non cloud based HPCC is still ahead by 96,2 compared to cloud based HPCC. During the performance testing of HPCC while running collective communication, noticable performance difference between cloud and non cloud based HPCC was not found. The availability of KVM module in a server that is used to host an instance is really essential to the cloud based HPCC performance."

"The proceedings of the 5th International Workshop on Parallel Tools for High Performance Computing provide an overview on supportive software tools and environments in the fields of system management, parallel debugging and performance analysis. In the pursuit to maintain exponential growth for the performance of high performance computers the HPC community is currently targeting exascale systems. The initial planning for exascale already started when the first petaflop system was delivered. Many challenges need to be addressed to reach the necessary performance. Scalability, energy efficiency and fault-tolerance need to be increased by orders of magnitude. The goal can only be achieved when advanced hardware is combined with a suitable software stack. In fact, the importance of software is rapidly growing. As a result, many international projects focus on the necessary software."

"This proceedings volume contains a selection of papers presented at the Fourth International Conference on High performance scientific computing held at the Hanoi Institute of Mathematics, Vietnamese Academy of Science and Technology (VAST), March 2-6, 2009. The conference was organized by the Hanoi Institute of Mathematics, the Interdisciplinary Center for Scientific Computing (IWR), Heidelberg, and its Heidelberg Graduate School of Mathematical and Computational Methods for the Sciences, and Ho Chi Minh City University of Technology. The contributions cover the broad interdisciplinary spectrum of scientific computing and present recent advances in theory, development of methods, and applications in practice. Subjects covered are mathematical modelling, numerical simulation, methods for optimization and control, parallel computing, software development, applications of scientific computing in physics, mechanics, biology and medicine, engineering, hydrology problems, transport, communication networks, production scheduling, industrial and commercial problems."

"This book presents the state-of-the-art in simulation on supercomputers. Leading researchers present results achieved on systems of the High Performance Computing Center Stuttgart (HLRS) for the year 2011. The reports cover all fields of computational science and engineering, ranging from CFD to computational physics and chemistry, to computer science, with a special emphasis on industrially relevant applications. Presenting results for both vector systems and microprocessor-based systems, the book allows readers to compare the performance levels and usability of various architectures. As HLRS operates not only a large cluster system but also one of the largest NEC vector systems in the world, this book also offers excellent insights into the potential of vector systems. The book covers the main methods used in high-performance computing. Its outstanding results in achieving highest performance for production codes are of particular interest for scientists and engineers alike. The book comes with a wealth of color illustrations and tables of results."

"The book presents the state of the art in high performance computing and simulation on modern supercomputer architectures. It covers trends in hardware and software development in general and specifically the future of vector-based systems and heterogeneous architectures. The application contributions cover computational fluid dynamics, material science, medical applications and climate research. Innovative fields like coupled multi-physics or multi-scale simulations are presented. All papers were chosen from presentations given at the 13th Teraflop Workshop held in October 2010 at Tohoku University, Japan."

"Contents : - Part I:Overview - High-Speed I/O Design and Test Review:From the Perspectives of Moore is Law and Multiple Gbps Data Rates - Part II:System Architecture and Performance - Transfer Functions for the Reference Clock Jitter in a Serial Link: Theory and Applications - Channel Compliance Testing Utilizing Novel Statistical Eye Methodology - Advances in High-Speed Design in Dispersively Attenuating Environments Such as Cables and Backplanes - Part III:Design Simulation and Modeling - Static Crosstalk Analysis - Modeling Loss and Jitter in High-Speed Serial Connects - Design and Modeling Methodology for High-Performance Power Distribution Systems - Source Synchronous Bus Design and Timing Analysis for High-Volume Manufacturable System Interconnects - Part IV:Design for High Performance - Eye Opening Techniques Enabled by Dispersion Compensation - Maximizing 10-Gbps Transmission Path Length in Copper Backplanes with and without Transceiver Technology - How to Make Optimal Use of Signal Conditioning in 40-Gbps Copper Interconnects - Design of a 6.25-Gbps Backplane SerDes with Top-Down Design Methodology - A Flexible Serial Link for 5-10 Gbps in Realistic Backplane Environments - Part V:Characterization and Test - Signal Integrity and Jitter:How to Measure Them Correctly - A Statistical and System Transfer Function Based Method for Jitter and Noise in Communication Design and Test - Total Jitter Measurement at Low Probability Levels,Using the Optimized BERT Scan Method - Comparison and Correlation of Signal-Integrity Measurement Techniques - Performance Evaluation of High-Speed Serial Links - Physical-Layer Design and Characterization of a 3.2 Gbps/Pair Memory Channel - Acronym Guide "