TY - CONF AU - Beisel, Tobias AU - Wiersema, Tobias AU - Plessl, Christian AU - Brinkmann, André ID - 2193 T2 - Proc. Int. Conf. on Application-Specific Systems, Architectures, and Processors (ASAP) TI - Cooperative multitasking for heterogeneous accelerators in the Linux Completely Fair Scheduler ER - TY - CONF AB - In the next decades, hybrid multi-cores will be the predominant architecture for reconfigurable FPGA-based systems. Temperature-aware thread mapping strategies are key for providing dependability in such systems. These strategies rely on measuring the temperature distribution and redicting the thermal behavior of the system when there are changes to the hardware and software running on the FPGA. While there are a number of tools that use thermal models to predict temperature distributions at design time, these tools lack the flexibility to autonomously adjust to changing FPGA configurations. To address this problem we propose a temperature-aware system that empowers FPGA-based reconfigurable multi-cores to autonomously predict the on-chip temperature distribution for pro-active thread remapping. Our system obtains temperature measurements through a self-calibrating grid of sensors and uses area constrained heat-generating circuits in order to generate spatial and temporal temperature gradients. The generated temperature variations are then used to learn the free parameters of the system's thermal model. The system thus acquires an understanding of its own thermal characteristics. We implemented an FPGA system containing a net of 144 temperature sensors on a Xilinx Virtex-6 LX240T FPGA that is aware of its thermal model. Finally, we show that the temperature predictions vary less than 0.72 degree C on average compared to the measured temperature distributions at run-time. AU - Happe, Markus AU - Agne, Andreas AU - Plessl, Christian ID - 656 T2 - Proceedings of the 2011 International Conference on Reconfigurable Computing and FPGAs (ReConFig) TI - Measuring and Predicting Temperature Distributions on FPGAs at Run-Time ER - TY - CONF AU - Kenter, Tobias AU - Platzner, Marco AU - Plessl, Christian AU - Kauschke, Michael ID - 2200 KW - design space exploration KW - LLVM KW - partitioning KW - performance KW - estimation KW - funding-intel SN - 978-1-4503-0554-9 T2 - Proc. Int. Symp. on Field-Programmable Gate Arrays (FPGA) TI - Performance Estimation Framework for Automated Exploration of CPU-Accelerator Architectures ER - TY - CONF AU - Grad, Mariusz AU - Plessl, Christian ID - 2198 T2 - Proc. Reconfigurable Architectures Workshop (RAW) TI - Just-in-time Instruction Set Extension – Feasibility and Limitations for an FPGA-based Reconfigurable ASIP Architecture ER - TY - CONF AU - Bienkowski, Marcin AU - Brinkmann, André AU - Klonowski, Marek AU - Korzeniowski, Miroslaw ID - 2217 T2 - Proceedings of the 14th International Conference On Principles Of Distributed Systems (Opodis) TI - SkewCCC+: A Heterogeneous Distributed Hash Table VL - 6490 ER - TY - CONF AU - Wewior, Martin AU - Packschies, Lars AU - Blunk, Dirk AU - Wickeroth, Daniel AU - Warzecha, Klaus-Dieter AU - Herres-Pawlis, Sonja AU - Gesing, Sandra AU - Breuers, Sebastian AU - Krüger, Jens AU - Birkenheuer, Georg AU - Lang, Ulrich ID - 2218 T2 - Proc. Int. Workshop on Scientific Gateways (IWSG) TI - The MoSGrid Gaussian Portlet - Technologies for the Implementation of Portlets for Molecular Simulations ER - TY - CONF AU - Gesing, Sandra AU - Marton, Istvan AU - Birkenheuer, Georg AU - Schuller, Bernd AU - Grunzke, Richard AU - Krüger, Jens AU - Breuers, Sebastian AU - Blunk, Dirk AU - Fels, Gregor AU - Packschies, Lars AU - Brinkmann, André AU - Kohlbacher, Oliver AU - Kozlovszky, Miklos ID - 2219 T2 - Proc. Int. Workshop on Scientific Gateways (IWSG) TI - Workflow Interoperability in a Grid Portal for Molecular Simulations ER - TY - CONF AU - Gao, Yan AU - Meister, Dirk AU - Brinkmann, André ID - 2225 T2 - Proc. IEEE Int. Conf. on Networking, Architecture and Storage (NAS) TI - Reliability Analysis of Declustered-Parity RAID 6 with Disk Scrubbing and Considering Irrecoverable Read Errors ER - TY - CONF AU - Berenbrink, Petra AU - Brinkmann, André AU - Friedetzky, Tom AU - Nagel, Lars ID - 2229 T2 - Proc. Int. Symp. on Parallelism in Algorithms and Architectures (SPAA) TI - Balls into Bins with Related Random Choices ER - TY - CONF AU - Meister, Dirk AU - Brinkmann, André ID - 2230 T2 - Proc. Symp. on Mass Storage Systems and Technologies (MSST) TI - dedupv1: Improving Deduplication Throughput using Solid State Drives (SSD) ER - TY - CONF AU - Lensing, Paul Hermann AU - Meister, Dirk AU - Brinkmann, André ID - 2231 T2 - Proc. Int. Worksh. on Storage Network Architecture and Parallel I/Os (SNAPI) TI - hashFS: Applying Hashing to Optimized File Systems for Small File Reads ER - TY - CONF AU - Berenbrink, Petra AU - Brinkmann, André AU - Friedetzky, Tom AU - Nagel, Lars ID - 2232 T2 - Proc. Int. Symp. on Parallel and Distributed Processing (IPDPS) TI - Balls into Non-uniform Bins ER - TY - CONF AU - Bolte, Matthias AU - Sievers, Michael AU - Birkenheuer, Georg AU - Niehörster, Oliver AU - Brinkmann, André ID - 2234 T2 - Proc. Design, Automation and Test in Europe Conf. (DATE) TI - Non-intrusive Virtualization Management Using libvirt ER - TY - CONF AU - Birkenheuer, Georg AU - Breuers, Sebastian AU - Brinkmann, André AU - Blunk, Dirk AU - Fels, Gregor AU - Gesing, Sandra AU - Herres-Pawlis, Sonja AU - Kohlbacher, Oliver AU - Krüger, Jens AU - Packschies, Lars ID - 2236 T2 - Proc. of Grid Workflow Workshop (GWW) TI - Grid-Workflows in Molecular Science ER - TY - CONF AU - Niehörster, Oliver AU - Brinkmann, André AU - Fels, Gregor AU - Krüger, Jens AU - Simon, Jens ID - 2237 SN - 1552-5244 T2 - Proc. Int. Conf. on Cluster Computing (CLUSTER) TI - Enforcing SLAs in Scientific Clouds ER - TY - CONF AU - Birkenheuer, Georg AU - Brinkmann, Andre AU - Karl, Holger ID - 809 T2 - Job Scheduling Strategies for Parallel Processing - 15th International Workshop, JSSPP 2010, Atlanta, GA, USA, April 23, 2010, Revised Selected Papers TI - Risk Aware Overbooking for Commercial Grids ER - TY - CONF AU - Lübbers, Enno AU - Platzner, Marco AU - Plessl, Christian AU - Keller, Ariane AU - Plattner, Bernhard ID - 2223 SN - 1-60132-140-6 T2 - Proc. Int. Conf. on Engineering of Reconfigurable Systems and Algorithms (ERSA) TI - Towards Adaptive Networking for Embedded Devices based on Reconfigurable Hardware ER - TY - CONF AU - Grad, Mariusz AU - Plessl, Christian ID - 2216 T2 - Proc. Int. Conf. on ReConFigurable Computing and FPGAs (ReConFig) TI - Pruning the Design Space for Just-In-Time Processor Customization ER - TY - CONF AU - Grad, Mariusz AU - Plessl, Christian ID - 2224 SN - 1-60132-140-6 T2 - Proc. Int. Conf. on Engineering of Reconfigurable Systems and Algorithms (ERSA) TI - An Open Source Circuit Library with Benchmarking Facilities ER - TY - CONF AU - Andrews, David AU - Plessl, Christian ID - 2220 SN - 1-60132-140-6 T2 - Proc. Int. Conf. on Engineering of Reconfigurable Systems and Algorithms (ERSA) TI - Configurable Processor Architectures: History and Trends ER - TY - CONF AU - Beisel, Tobias AU - Niekamp, Manuel AU - Plessl, Christian ID - 2226 SN - 978-1-4244-6965-9 T2 - Proc. Int. Conf. on Application-Specific Systems, Architectures, and Processors (ASAP) TI - Using Shared Library Interposing for Transparent Acceleration in Systems with Heterogeneous Hardware Accelerators ER - TY - CONF AU - Keller, Ariane AU - Plattner, Bernhard AU - Lübbers, Enno AU - Platzner, Marco AU - Plessl, Christian ID - 2206 SN - 978-1-4244-8864-3 T2 - Proc. IEEE Globecom Workshop on Network of the Future (FutureNet) TI - Reconfigurable Nodes for Future Networks ER - TY - CONF AU - Woehrle, Matthias AU - Plessl, Christian AU - Thiele, Lothar ID - 2227 SN - 978-1-4244-7911-5 T2 - Proc. Int. Conf. Networked Sensing Systems (INSS) TI - Rupeas: Ruby Powered Event Analysis DSL ER - TY - CONF AU - Kenter, Tobias AU - Platzner, Marco AU - Plessl, Christian AU - Kauschke, Michael ED - Hammami, Omar ED - Larrabee, Sandra ID - 2228 T2 - Proc. Workshop on Architectural Research Prototyping (WARP), International Symposium on Computer Architecture (ISCA) TI - Performance Estimation for the Exploration of CPU-Accelerator Architectures ER - TY - CONF AU - Höing, Andre AU - Scherp, Guido AU - Gudenkauf, Stefan AU - Meister, Dirk AU - Brinkmann, André ID - 2239 T2 - Proc. Int. Conf. on Service Oriented Computing (ICSOC) TI - An Orchestration as a Service Infrastructure using Grid Technologies and WS-BPEL VL - 5900 ER - TY - CONF AU - Niehörster, Oliver AU - Birkenheuer, Georg AU - Brinkmann, André AU - Blunk, Dirk AU - Elsässer, Brigitta AU - Herres-Pawlis, Sonja AU - Krüger, Jens AU - Niehörster, Julia AU - Packschies, Lars AU - Fels, Gregor ID - 2240 SN - 978-83-61433-01-9 T2 - Proc. Cracow Grid Workshop (CGW) TI - Providing Scientific Software as a Service in Consideration of Service Level Agreements ER - TY - CONF AU - Birkenheuer, Georg AU - Carlson, Arthur AU - Fölling, Alexander AU - Högqvist, Mikael AU - Hoheisel, Andreas AU - Papaspyrou, Alexander AU - Rieger, Klaus AU - Schott, Bernhard AU - Ziegler, Wolfgang ID - 2260 SN - 978-83-61433-01-9 T2 - Proc. Cracow Grid Workshop (CGW) TI - Connecting Communities on the Meta-Scheduling Level: The DGSI Approach! ER - TY - CONF AU - Meister, Dirk AU - Brinkmann, André ID - 2264 T2 - Proc. of the Israeli Experimental Systems Conference (SYSTOR) TI - Multi-Level Comparison of Data Deduplication in a Backup Scenario ER - TY - CONF AU - Birkenheuer, Georg AU - Brinkmann, Andre AU - Karl, Holger ID - 818 T2 - Job Scheduling Strategies for Parallel Processing, 14th International Workshop, JSSPP 2009, Rome, Italy, May 29, 2009. Revised Papers TI - The Gain of Overbooking ER - TY - CONF AB - Mapping applications that consist of a collection of cores to FPGA accelerators and optimizing their performance is a challenging task in high performance reconfigurable computing. We present IMORC, an architectural template and highly versatile on-chip interconnect. IMORC links provide asynchronous FIFOs and bitwidth conversion which allows for flexibly composing accelerators from cores running at full speed within their own clock domains, thus facilitating the re-use of cores and portability. Further, IMORC inserts performance counters for monitoring runtime data. In this paper, we first introduce the IMORC architectural template and the on-chip interconnect, and then demonstrate IMORC on the example of accelerating the k-th nearest neighbor thinning problem on an XD1000 reconfigurable computing system. Using IMORC's monitoring infrastructure, we gain insights into the data-dependent behavior of the application which, in turn, allow for optimizing the accelerator. AU - Schumacher, Tobias AU - Plessl, Christian AU - Platzner, Marco ID - 2350 KW - IMORC KW - interconnect KW - performance SN - 978-1-4244-4450-2 T2 - Proc. Int. Symp. on Field-Programmable Custom Computing Machines (FCCM) TI - IMORC: Application Mapping, Monitoring and Optimization for High-Performance Reconfigurable Computing ER - TY - CONF AB - In this work we present EvoCache, a novel approach for implementing application-specific caches. The key innovation of EvoCache is to make the function that maps memory addresses from the CPU address space to cache indices programmable. We support arbitrary Boolean mapping functions that are implemented within a small reconfigurable logic fabric. For finding suitable cache mapping functions we rely on techniques from the evolvable hardware domain and utilize an evolutionary optimization procedure. We evaluate the use of EvoCache in an embedded processor for two specific applications (JPEG and BZIP2 compression) with respect to execution time, cache miss rate and energy consumption. We show that the evolvable hardware approach for optimizing the cache functions not only significantly improves the cache performance for the training data used during optimization, but that the evolved mapping functions generalize very well. Compared to a conventional cache architecture, EvoCache applied to test data achieves a reduction in execution time of up to 14.31% for JPEG (10.98% for BZIP2), and in energy consumption by 16.43% for JPEG (10.70% for BZIP2). We also discuss the integration of EvoCache into the operating system and show that the area and delay overheads introduced by EvoCache are acceptable. AU - Kaufmann, Paul AU - Plessl, Christian AU - Platzner, Marco ID - 2262 KW - EvoCache KW - evolvable hardware KW - computer architecture T2 - Proc. NASA/ESA Conference on Adaptive Hardware and Systems (AHS) TI - EvoCaches: Application-specific Adaptation of Cache Mapping ER - TY - CONF AU - Beutel, Jan AU - Gruber, Stephan AU - Hasler, Andi AU - Lim, Roman AU - Meier, Andreas AU - Plessl, Christian AU - Talzi, Igor AU - Thiele, Lothar AU - Tschudin, Christian AU - Woehrle, Matthias AU - Yuecel, Mustafa ID - 2352 KW - WSN KW - PermaSense SN - 978-1-4244-5108-1 T2 - Proc. Int. Conf. on Information Processing in Sensor Networks (IPSN) TI - PermaDAQ: A Scientific Instrument for Precision Sensing and Data Recovery in Environmental Extremes ER - TY - CONF AU - Schumacher, Tobias AU - Süß, Tim AU - Plessl, Christian AU - Platzner, Marco ID - 2238 KW - IMORC KW - graphics SN - 978-0-7695-3917-1 T2 - Proc. Int. Conf. on ReConFigurable Computing and FPGAs (ReConFig) TI - Communication Performance Characterization for Reconfigurable Accelerator Design on the XD1000 ER - TY - CONF AU - Schumacher, Tobias AU - Plessl, Christian AU - Platzner, Marco ID - 2261 KW - IMORC KW - NOC KW - KNN KW - accelerator SN - 1946-1488 T2 - Proc. Int. Conf. on Field Programmable Logic and Applications (FPL) TI - An Accelerator for k-th Nearest Neighbor Thinning Based on the IMORC Infrastructure ER - TY - CONF AB - In this paper, we introduce the Woolcano reconfigurable processor architecture. The architecture is based on the Xilinx Virtex-4 FX FPGA and leverages the Auxiliary Processing Unit (APU) as well as the partial reconfiguration capabilities to provide dynamically reconfigurable custom instructions. We also present a hardware tool flow that automatically translates software functions into custom instructions and a software tool flow that creates binaries using these instructions. While previous research on processors with reconfigurable functional units has been performed predominantly with simulation, the Woolcano architecture allows for exploring dynamic instruction set extension with commercially available hardware. Finally, we present a case study demonstrating a custom floating-point instruction generated with our approach, which achieves a 40x speedup over software-emulated floating-point operations and a 21% speedup over the Xilinx hardware floating-point unit. AU - Grad, Mariusz AU - Plessl, Christian ID - 2263 SN - 1-60132-101-5 T2 - Proc. Int. Conf. on Engineering of Reconfigurable Systems and Algorithms (ERSA) TI - Woolcano: An Architecture and Tool Flow for Dynamic Instruction Set Extension on Xilinx Virtex-4 FX ER - TY - CONF AU - Battré, Dominic AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Voss, Kerstin ID - 1974 T2 - Proc. Int. Conf. on Risks and Security of Internet and Systems TI - Quality Assurance of Grid Service Provisioning by Risk Aware Managing of Resource Failures ER - TY - CONF AB - Service Level Agreements (SLAs) have focal importance if the commercial customer should be attracted to the Grid. An SLA-aware resource management system has already been realize, able to fulfill the SLA of jobs even in the case of resource failures. For this, it is able to migrate checkpointed jobs over the Grid. At this, virtual execution environments allow to increase the number of potential migration targets significantly. In this paper we outline the concept of such virtual execution environments and focus on the SLA negotiation aspects. AU - Battré, Dominic AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Voss, Kerstin ID - 1975 T2 - Proc. Int. DMTF Academic Alliance Workshop on Systems and Virtualization Management: Standards and New Technologies TI - Virtual Execution Environments and the Negotiation of Service Level Agreements in Grid Systems ER - TY - CONF AB - Abstract: Commercial Grid users demand for contractually fixed QoS levels. Service Level Agreements (SLAs) are powerful instruments for describing such contracts. SLA-aware resource management is the foundation for realizing SLA contracts within the Grid. OpenCCS is such an SLA-aware RMS, using transparent checkpointing to cope with resource outages. It generates a compatibility profile for each checkpoint dataset, so that the job can be resumed even on resources within the Grid. However, only a small number of Grid resources comply to such a profile. This paper describes the concept of virtual execution environments and how they increase the number of potential migration targets.The paper also describes how these virtual execution environments have been implemented within the OpenCCS resource management system. AU - Battré, Dominic AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Voss, Kerstin ID - 1976 T2 - Proc. Int. Workshop on Scheduling and Resource Management for Parallel and Distributed Systems TI - Implementation of Virtual Execution Environments for improving SLA-compliant Job Migration in Grids ER - TY - CONF AU - Battré, Dominic AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Voss, Kerstin ID - 1978 T2 - Proc. Int. Conf. on Grid Computing and Applications (GCA) TI - Germany, Belgium, France, and Back Again: Job Migration using Globus ER - TY - CONF AB - OpenCCS is an SLA-aware resource management system which uses transparent checkpointing of applications and migration of checkpoint datasets for ensuring SLA-compliance also in case of resource outages. Migration of checkpoints presumes a high grade of compatibility between source and target resource. Hence, even in large Grid systems only a small number of resources are eligible migration targets. This short paper describes the concept of virtual execution environments and how they increase the number of potential migration targets. It will also outline an implementation within OpenCCS. AU - Battré, Dominic AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Voss, Kerstin ID - 1980 T2 - Proc. Int. Conf. on Services Computing (SCC) TI - Virtual Execution Environments for ensuring SLA-compliant Job Migration in Grids ER - TY - CONF AB - Contractually fixed service quality levels are mandatory prerequisites for attracting the commercial user to Grid environments. Service Level Agreements (SLAs) are powerful instruments for describing obligations and expectations in such a business relationship. At the level of local resource management systems, checkpointing and restart is an important instrument for realizing fault tolerance and SLA awareness. This paper highlights the concepts of migrating such checkpoint datasets to achieve the goal of SLA compliant job execution. AU - Battré, Dominic AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Voss, Kerstin ID - 1981 SN - 978-0-7695-3177-9 T2 - Proc. Int. Conf. on Grid and Pervasive Computing (GPC) TI - Job Migration and Fault Tolerance in SLA-aware Resource Management Systems ER - TY - CONF AU - Battré, Dominic AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Voss, Kerstin ED - Gonzalez, T. F. ID - 1983 SN - 978-0-88986-773-4 T2 - Proc. Int. Conf. on Parallel and Distributed Computing and Systems (PDCS) TI - Enhancing SLA Provisioning by Utilizing Profit-Oriented Fault Tolerance ER - TY - CONF AU - Brinkmann, André AU - Effert, Sascha ID - 2355 T2 - Proc. Int. Conf. on Principles Of DIstributed Systems (OPODIS) TI - Redundant Data Placement Strategies for Cluster Storage Environments ER - TY - CONF AU - Brinkmann, André AU - Gudenkauf, Stefan AU - Hasselbring, Wilhelm AU - Höing, André AU - Karl, Holger AU - Kao, Odej AU - Nitsche, Holger AU - Scherp, Guido ID - 2356 T2 - Proc. Cracow Grid Workshop (CGW) TI - Employing WS-BPEL Design Patterns for Grid Service Orchestration using a Standard WS-BPEL Engine and a Grid Middleware ER - TY - CONF AU - Birkenheuer, Georg AU - Brinkmann, André AU - Dömer, Hubert AU - Effert, Sascha AU - Konersmann, Christoph AU - Niehörster, Oliver AU - Simon, Jens ID - 2357 T2 - Proc. Gemeinsamer Workshop der GI/ITG Fachgruppen "Betriebssysteme" und "KuVS": Virtualized IT infrastructures and their management TI - Virtual Supercomputer for HPC and HTC ER - TY - CONF AU - Beisel, Tobias AU - Lietsch, Stefan AU - Thielemans, Kris ID - 2358 T2 - IEEE Nuclear Science Symposium Conference Record (NSS) TI - A method for OSEM PET reconstruction on parallel architectures using STIR ER - TY - CONF AU - Battré, Dominic AU - Birkenheuer, Georg AU - Deora, Vikas AU - Hovestadt, Matthias AU - Rana, Omer AU - Wäldrich, Oliver ID - 2359 T2 - Proc. Cracow Grid Workshop (CGW) TI - Guarantee and Penalty Clauses for Service Level Agreements ER - TY - CONF AU - Richert, Willi AU - Niehörster, Oliver AU - Koch, Markus ID - 2360 T2 - Proc. IEEE/RSJ Int.Conf. on Intelligent Robots and Systems (IROS) TI - Layered understanding for sporadic imitation in a multi-robot scenario ER - TY - CONF AU - Lietsch, Stefan AU - Zabel, Henning AU - Laroque, Christoph ID - 2363 T2 - Proc. ASME Computers and Information in Engineering Conference (CIE) TI - Computational Steering Of Interactive Material Flow Simulations ER - TY - CONF AU - Platzner, Marco AU - Döhre, Sven AU - Happe, Markus AU - Kenter, Tobias AU - Lorenz, Ulf AU - Schumacher, Tobias AU - Send, Andre AU - Warkentin, Alexander ID - 2365 SN - 1-60132-064-7 T2 - Proc. Int. Conf. on Engineering of Reconfigurable Systems and Algorithms (ERSA) TI - The GOmputer: Accelerating GO with FPGAs ER - TY - CONF AU - Lietsch, Stefan AU - Hermann Lensing, Paul ID - 2368 SN - 978-84-9830-164-9 T2 - Proc. Int. Symp. on Image/Video Communications over fixed and mobile networks (ISVC) TI - CUDA-based, parallel JPEG Compression for Remote Rendering ER - TY - CONF AU - Birkenheuer, Georg AU - Hovestadt, Matthias AU - Kao, Odej AU - Voß, Kerstin ID - 2369 T2 - Proc. Int. Conf. on Grid Computing & Applications (GCA) TI - Overbooking in Planning Based Scheduling Systems ER - TY - CONF AU - Brinkmann, André AU - Effert, Sascha ID - 2371 T2 - Proc. Int. Symp. on Parallelism in Algorithms and Architectures (SPAA) TI - Data Replication in P2P Environments ER - TY - CONF AU - Griese, Björn AU - Brinkmann, André AU - Porrmann, Mario ID - 2374 T2 - Proc. Int. Symp. on Parallel and Distributed Processing (IPDPS) TI - SelfS – A Real-Time Protocol for Virtual Ring Topologies ER - TY - CONF AU - Voss, Kerstin ID - 2375 T2 - Proc. Int. Conf. on Networking and Services (ICNS) TI - Recursive Evaluation of Fault Tolerance Mechanisms for SLA Management ER - TY - CONF AU - Brinkmann, André AU - Effert, Sascha ID - 2380 T2 - Proc. of the GI/ITG KuVS Fachgespr ̈ach Virtualisierung TI - Storage Cluster Architectures ER - TY - CONF AU - Richert, Willi AU - Klompmaker, Florian AU - Niehörster, Oliver ID - 2382 T2 - Proc. IFIP Conf. on Biologically Inspired Cooperative Computing (BICC) TI - Guiding exploration by combining individual learning and imitation in societies of autonomous robots ER - TY - CONF AU - Lietsch, Stefan AU - Hermann Lensing, Paul ID - 2383 T2 - Proc. Int. Symp. on Visual Computing (ISVC) TI - GPU-Supported Image Compression for Remote Visualization - Realization and Benchmarking VL - 5358 ER - TY - CONF AU - Bienkowski, Marcin AU - Brinkmann, André AU - Korzeniowski, Miroslaw ID - 2386 T2 - Proc. Int. Conf. on Principles Of DIstributed Systems (OPODIS) TI - Degree 3 Suffices: A Large-Scale Overlay for P2P Networks ER - TY - CONF AU - Battre, Dominic AU - Birkenheuer, Georg AU - Hovestadt, Matthias AU - Kao, Odej AU - Voss, Kerstin ID - 2387 T2 - Proc. Cracow Grid Workshop (CGW) TI - Applying Risk Management to Support SLA Provisioning ER - TY - CONF AU - Battré, Dominic AU - Kao, Odej AU - Voss, Kerstin ID - 2388 T2 - Proc. Usage of Service Level Agreements in Grids Workshop held in conjunction with International Conference on Grid Computing TI - Implementing WS-Agreement in a Globus Toolkit 4.0 Environment ER - TY - CONF AU - Woehrle, Matthias AU - Plessl, Christian AU - Lim, Roman AU - Beutel, Jan AU - Thiele, Lothar ID - 2370 KW - WSN KW - testing KW - verification SN - 978-0-7695-3158-8 T2 - IEEE Int. Conf. on Sensor Networks, Ubiquitous, and Trustworthy Computing (SUTC) TI - EvAnT: Analysis and Checking of event traces for Wireless Sensor Networks ER - TY - CONF AU - Schumacher, Tobias AU - Meiche, Robert AU - Kaufmann, Paul AU - Lübbers, Enno AU - Plessl, Christian AU - Platzner, Marco ID - 2364 SN - 1-60132-064-7 T2 - Proc. Int. Conf. on Engineering of Reconfigurable Systems and Algorithms (ERSA) TI - A Hardware Accelerator for k-th Nearest Neighbor Thinning ER - TY - CONF AU - Schumacher, Tobias AU - Plessl, Christian AU - Platzner, Marco ID - 2372 KW - IMORC KW - IP core KW - interconnect T2 - Many-core and Reconfigurable Supercomputing Conference (MRSC) TI - IMORC: An infrastructure for performance monitoring and optimization of reconfigurable computers ER - TY - CONF AB - Service level agreements (SLAs) are powerful instruments for describing all obligations and expectations in a business relationship. It is of focal importance for deploying Grid technology to commercial applications. The EC-funded project HPC4U (Highly Predictable Clusters for Internet Grids) aimed at introducing SLA-awareness in local resource management systems, while the EC-funded project AssessGrid introduced the notion of risk, which is associated with every business contract. This paper highlights the concept of planning based resource management and describes the SLA-aware scheduler developed and used in these projects. AU - Battré, Dominic AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Voss, Kerstin ID - 1986 T2 - Proc. Workshop of the UK PLANNING AND SCHEDULING Special Interest Group (PlanSIG) TI - Planning-based Scheduling for SLA-awareness and Grid Integration ER - TY - CONF AU - Battré, Dominic AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Voss, Kerstin ID - 1988 T2 - Proc. Cracow Grid Workshop, Academic Computer Center CYFRNET TI - Transparent Cross Border Migration of Parallel Multi Node Applications ER - TY - CONF AU - Lietsch, Stefan AU - Marquardt, Oliver ID - 2389 SN - 978-3-540-76857-9 T2 - Proc. Int. Symp. on Visual Computing (ISVC) TI - A CUDA-Supported Approach to Remote Rendering VL - 4841 ER - TY - CONF AU - Voss, Kerstin ID - 2390 SN - 0-7695-3007-9 T2 - Proc. Int. Conf. on Semantics, Knowledge and Grid (SKG) TI - Comparing Fault Tolerance Mechanisms for Self-Organizing Resource Management in Grids ER - TY - CONF AU - Battré, Dominic AU - Djemame, Karim AU - Kao, Odej AU - Voss, Kerstin ID - 2391 T2 - Proc. Int. Conf. on Security and Privacy in Communications Networks (SecureComm) TI - Gaining Users' Trust by Publishing Failure Probabilities ER - TY - CONF AU - Voss, Kerstin AU - Djemame, Karim AU - Gourlay, Iain AU - Padgett, James ED - Altmann, Jörn ED - Veit, Daniel ID - 2396 T2 - Proc. Int. Worksh. on Grid Economics and Business Models (GECON) TI - AssessGrid, Economic Issues Underlying Risk Awareness in Grids VL - 4685 ER - TY - CONF AU - Voss, Kerstin ID - 2397 SN - 0-7695-2858-9 T2 - Proc. Int. Conf. on Networking and Services (ICNS) TI - Enhance Self-managing Grids by Risk Management ER - TY - CONF AU - Lietsch, Stefan AU - Zabel, Henning AU - Berssenbruegge, Jan ID - 2398 SN - 0-7918-3806-4 T2 - Proc. ASME Computers and Information in Engineering Conference (CIE) TI - Computational Steering of Interactive and Distributed Virtual Reality Applications ER - TY - CONF AU - Birkenheuer, Georg AU - Majlender, Peter AU - Nitsche, Holger AU - Voss, Kerstin AU - Weber, Elmar ID - 2399 T2 - Proc. Cracow Grid Workshop (CGW) TI - Gather and Prepare Monitoring Data for Estimating Resource Stability ER - TY - CONF AU - Berssenbrügge, Jan AU - Lietsch, Stefan ID - 2400 SN - 978-3-939350-28-6 T2 - Proc. Worksh. Augmented & Virtual Reality in der Produktentstehung TI - Verteilte Berechnung und Darstellung automobiler Scheinwerfer VL - 209 ER - TY - CONF AU - Woehrle, Matthias AU - Plessl, Christian AU - Beutel, Jan AU - Thiele, Lothar ID - 2392 KW - WSN KW - testing KW - distributed KW - embedded SN - 978-1-59593-694-3 T2 - Proc. Workshop on Embedded Networked Sensors (EmNets) TI - Increasing the Reliability of Wireless Sensor Networks with a Distributed Testing Framework ER - TY - CONF AU - Beutel, Jan AU - Dyer, Matthias AU - Lim, Roman AU - Plessl, Christian AU - Woehrle, Matthias AU - Yuecel, Mustafa AU - Thiele, Lothar ID - 2393 KW - WSN KW - testing KW - verification SN - 1-4244-1231-5 T2 - Proc. Int. Conf. Networked Sensing Systems (INSS) TI - Automated Wireless Sensor Network Testing ER - TY - CONF AU - Djemame, Karim AU - Gourlay, Iain AU - Padgett, James AU - Birkenheuer, Georg AU - Hovestadt, Matthias AU - Kao, Odej AU - Voss, Kerstin ID - 2402 SN - 0-7695-2734-5 T2 - Proc. Int. Conf. on e-Science and Grid Computing TI - Introducing Risk Management into the Grid ER - TY - CONF AU - Hovestadt, Matthias AU - Kao, Odej AU - Voss, Kerstin ID - 2403 SN - 0-7695-2670-5 T2 - Proc. Int. Conf. on Services Computing (SCC) TI - The First Step of Introducing Risk Management for Prepossessing SLAs ER - TY - CONF AU - Voss, Kerstin ID - 2406 SN - 0-7695-2622-5 T2 - Proc. Int. Conf. on Networking and Services (ICNS) TI - Risk Aware Migrations for Prepossessing SLAs ER - TY - CONF AU - Lietsch, Stefan AU - Zabel, Henning AU - Berssenbruegge, Jan AU - Wittenberg, Veit AU - Eikermann, Martin ID - 2407 SN - 3-540-48628-3 T2 - Proc. Int. Symp. on Visual Computing (ISVC) TI - Light Simulation in a Distributed Driving Simulator VL - 4291 ER - TY - CONF AU - Lerch, Nicolas AU - Nitsche, Holger AU - Voss, Kerstin AU - Hovestadt, Matthias ID - 2408 T2 - Proc. Cracow Grid Workshop (CGW) TI - First Steps of a Monitoring Framework to Empower Risk Assessment on Grids ER - TY - CONF AU - Birkenheuer, Georg AU - Döhre, Sven AU - Hovestadt, Matthias AU - Kao, Odej AU - Voss, Kerstin ID - 2409 T2 - Proc. Cracow Grid Workshop (CGW) TI - On Similarities of Grid Resources for Identifying Potential Migration Targets ER - TY - CONF AU - Birkenheuer, Georg AU - Djemame, Karim AU - Gourlay, Iain AU - Kao, Odej AU - Padgett, James AU - Voß, Kerstin ID - 2410 T2 - Proc. WS-Agreement Workshop (Open Grid Forum 18) TI - Using WS-Agreement for Risk Management in the Grid ER - TY - CONF AB - The next generation grid applications demand grid middleware for a flexible negotiation mechanism supporting various ways of quality-of-service (QoS) guarantees. In this context, a QoS guarantee covers simultaneous allocations of various kinds of different resources, such as processor runtime, storage capacity, or network bandwidth, which are specified in the form of service level agreements (SLA). Currently, a gap exists between the capabilities of grid middleware and the underlying resource management systems concerning their support for QoS and SLA negotiation. In this paper we present an approach which closes this gap. Introducing the architecture of the virtual resource manager, we highlight its main QoS management features like run-time responsibility, co-allocation, and fault tolerance. AU - Burchard, Lars-Olof AU - Heine, Felix AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Linnert, Barry ID - 1992 T2 - Proc. IEEE Int. Parallel & Distributed Processing Symposium (IPDPS) TI - A Quality-of-Service Architecture for Future Grid Computing Applications. ER - TY - CONF AU - Lietsch, Stefan AU - Kao, Odej ID - 2413 T2 - Proc. Intelligence in Communication Systems (INTELLCOMM) TI - CoLoS - A System for Device Unaware and Position Dependent Communication Based on the Session Initiation Protocol VL - 190 ER - TY - CONF AU - Birkenheuer, Georg AU - Hagelweide, Wilke AU - Hagemeier, Björn AU - Japs, Viktor AU - Keller, Matthias AU - Mayr, Nikolas AU - Meyer, Jan AU - Schumacher, Tobias AU - Voß, Kerstin AU - Zajac, Markus ID - 2414 T2 - Proc. GI Informatiktage TI - PIRANHA – Hunter of Idle Resources VL - 2 ER - TY - CONF AU - Kao, Odej AU - Hovestadt, Matthias AU - Keller, Axel ID - 1993 T2 - Proc. Advanced Research Workshop on High Perfomance Computing: Technology and Applications TI - SLA-aware Job Migration in Grid Environments ER - TY - CONF AU - Burchard, Lars-Olof AU - Heiss, Hans-Ulrich AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Linnert, Barry ID - 1994 T2 - Proceedings of the GI-Meeting on Operating Systems TI - An Architecture for SLA-aware Resource Management ER - TY - CONF AB - The next generation Grid will demand the Grid middleware to provide flexibility, transparency, and reliability. This implies the appliance of service level agreements to guarantee a negotiated level of quality of service. These requirements also affect the local resource management systems providing resources for the Grid. At this a gap between these demands and the features of today's resource management systems becomes apparent. In this paper we present an approach which closes this gap. Introducing the architecture of the virtual resource manager we highlight its main features of runtime responsibility, resource virtualization, information hiding, autonomy provision, and smooth integration of existing resource management system installations. AU - Burchard, Lars-Olof AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Linnert, Barry ID - 1995 T2 - Proc. Int. Symposium on Cluster Computing and the Grid (CCGRID) TI - Virtual Resource Manager: An Architecture for SLA-aware Resource Management ER - TY - CONF AU - Groppe, Sven AU - Böttcher, Stefan AU - Birkenheuer, Georg ID - 2416 T2 - Proc. Int. Conf. on Enterprise Information Systems (ICEIS) TI - Efficient Querying of Transformed XML Documents ER - TY - CONF AU - Groppe, Sven AU - Böttcher, Stefan AU - Heckel, Reiko AU - Birkenheuer, Georg ID - 2417 T2 - Proc. East-European Conf. on Advances in Databases and Information Systems (ADBIS) TI - Using XSLT Stylesheets to Transform XPath Queries ER - TY - CONF AB - Nearly all existing HPC systems are operated by resource management systems based on the queuing approach. With the increasing acceptance of grid middleware like Globus, new requirements for the underlying local resource management systems arise. Features like advanced reservation or quality of service are needed to implement high level functions like co-allocation. However it is difficult to realize these features with a resource management system based on the queuing concept since it considers only the present resource usage. In this paper we present an approach which closes this gap. By assigning start times to each resource request, a complete schedule is planned. Advanced reservations are now easily possible. Based on this planning approach functions like diffuse requests, automatic duration extension, or service level agreements are described. We think they are useful to increase the usability, acceptance and performance of HPC machines. In the second part of this paper we present a planning based resource management system which already covers some of the mentioned features. AU - Hovestadt, Matthias AU - Kao, Odej AU - Keller, Axel AU - Streit, Achim ID - 1998 KW - High Performance Computing KW - Service Level Agreement KW - Grid Resource KW - Resource Management System KW - Advance Reservation T2 - Proc. Workshop on Job Scheduling Strategies for Parallel Processing (JSSPP) TI - Scheduling in HPC Resource Management Systems: Queuing vs. Planning VL - 2862 ER - TY - CONF AU - P. Miller, Barton AU - Labarta, Jesús AU - Schintke, Florian AU - Simon, Jens ID - 2426 SN - 978-3-540-45706-0 T2 - Proc. European Conf. on Parallel Processing (Euro-Par) TI - Performance Evaluation, Analysis and Optimization VL - 2400 ER - TY - CONF AB - The Testbed and Applications working group of the European Grid Forum (EGrid) is actively building and experimenting with a grid infrastructure connecting several research-based supercomputing sites located in Europe. The paper reports on our first feasibility study: running a self-migrating version of the Cactus simulation code across the European grid testbed, including "live" remote data visualization and steering from different demonstration booths at Supercomputing 2000, in Dallas, TX. We report on the problems that had to be resolved for this endeavour and identify open research challenges for building production-grade grid environments. AU - Gehring, Jörn AU - Keller, Axel AU - Reinefeld, Alexander AU - Streit, Achim ID - 2000 T2 - Proc. Int. Symposium on Cluster Computing and the Grid (CCGRID) TI - Early Experiences with the EGrid Testbed ER - TY - CONF AB - The availability of commodity high performance components for workstations and networks made it possible to build up large, PC based compute clusters at modest costs. These clusters seem to be a realistic alternative to proprietary, massively parallel systems with respect to the price/performance ratio. However, from the administration point of view, those systems are still often solely a collection of autonomous nodes, connected by a fast short area network. Therefore, aiming at providing the best possible performance in daily work to all users, a lot of work has to be done before obtaining the expected result. The paper describes the problem areas we had to cope with during the integration of two large SCI clusters (one with 64 and one with 192 processors) in the environment of the Paderborn Center for Parallel Computing. AU - Keller, Axel AU - Krawinkel, Andreas ID - 2002 T2 - Proc. Int. Symposium on Cluster Computing and the Grid (CCGRID) TI - Lessons Learned While Operating Two Large SCI Clusters ER - TY - CONF AU - Schintke, Florian AU - Simon, Jens AU - Reinefeld, Alexander ID - 2431 T2 - Proc. Int. Conf. on Computational Science (ICCS) TI - A Cache Simulator for Shared Memory Systems VL - 2074 ER - TY - CONF AB - RsdEditor is a graphical user interface which produces specifications of computational resources. It is used in the RSD (Resource and Service Description) environment for specifying, registering, requesting and accessing resources and services in a metacomputer. RsdEditor was designed to be used by the administrators and users of metacomputing environments. At the administrator level, the GUI is used to describe the available computing and networking components of a metacomputer. At the user level, RsdEditor can be used to specify which characteristics of the computational resources are needed to execute a meta-application. This paper is organized as follows: it first introduces RsdEditor. It then briefly describes the RSD environment, and finally, it highlights various features and implementation issues of RsdEditor. AU - Baraglia, Ranieri AU - Keller, Axel AU - Laforenza, Domenico AU - Reinefeld, Alexander ID - 2003 T2 - Proc. Heterogenous Computing Workshop HCW at IPDPS TI - RsdEditor: A Graphical User Interface for Specifying Metacomputer Components ER - TY - CONF AB - With the recent availability of cost-effective network cards for the PCI bus, researchers have been tempted to build up large compute clusters with standard PCs. Many of them are operated with workstation cluster management software in high-throughput or single user mode. For very large clusters with more than 100 PEs, however, it becomes necessary to implement a full fledged resource management software that allows to partition the system for multi-user access. In this paper, we present our Computing Center Software (CCS), which was originally designed for managing massively parallel high-performance computers, and now adapted to modern workstation clusters. It provides - partitioning of exclusive and non-exclusive resources, - hardware-independent scheduling of interactive and batch jobs, - open, extensible interfaces to other resource management systems, - a high degree of reliability. AU - Brune, Matthias AU - Keller, Axel AU - Reinefeld, Alexander ID - 2004 T2 - Proc. Int. Conf. on High-Performance Computing and Networking (HPCN) TI - Resource Management for High-Performance PC Clusters ER - TY - CONF AU - Brune, Matthias AU - Reinefeld, Alexander AU - Varnholt, Jörg ID - 2436 T2 - Proc. Int. Symp. High-Performance Distributed Computing (HPDC) TI - A Resource Description Environment for Distributed Computing Systems ER - TY - CONF AB - RSD (Resource and Service Description) is a scheme for specifying resources and services in complex heterogeneous computing systems and metacomputing environments. At the system administrator level, RSD is used to specify the available system components, such as the number of nodes, their interconnection topology, CPU speeds, and available software packages. At the user level, a GUI provides a comfortable, high-level interface for specifying system requests. A textual editor can be used for defining repetitive and recursive structures. This gives service providers the necessary flexibility for fine-grained specification of system topologies, interconnection networks, system and software dependent properties. All these representations are mapped onto a single, coherent internal object-oriented resource representation. Dynamic aspects (like network performance, availability of compute nodes, and compute node loads) are traced at runtime and included in the resource description to allow for optimal process mapping and dynamic task load balancing at runtime at the metacomputer level. This is done in a self-organizing way, with human system operators becoming only involved when new hardware/software components are installed. AU - Brune, Matthias AU - Gehring, Jörn AU - Keller, Axel AU - Reinefeld, Alexander ID - 2009 T2 - Proc. Int. Conf. on High-Performance Computing Systems (HPCS) TI - RSD - Resource and Service Description ER -