@inproceedings{2262, abstract = {{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. }}, author = {{Kaufmann, Paul and Plessl, Christian and Platzner, Marco}}, booktitle = {{Proc. NASA/ESA Conference on Adaptive Hardware and Systems (AHS)}}, keywords = {{EvoCache, evolvable hardware, computer architecture}}, pages = {{11--18}}, publisher = {{IEEE Computer Society}}, title = {{{EvoCaches: Application-specific Adaptation of Cache Mapping}}}, year = {{2009}}, } @inproceedings{2352, author = {{Beutel, Jan and Gruber, Stephan and Hasler, Andi and Lim, Roman and Meier, Andreas and Plessl, Christian and Talzi, Igor and Thiele, Lothar and Tschudin, Christian and Woehrle, Matthias and Yuecel, Mustafa}}, booktitle = {{Proc. Int. Conf. on Information Processing in Sensor Networks (IPSN)}}, isbn = {{978-1-4244-5108-1}}, keywords = {{WSN, PermaSense}}, pages = {{265--276}}, publisher = {{IEEE Computer Society}}, title = {{{PermaDAQ: A Scientific Instrument for Precision Sensing and Data Recovery in Environmental Extremes}}}, year = {{2009}}, } @inproceedings{2238, author = {{Schumacher, Tobias and Süß, Tim and Plessl, Christian and Platzner, Marco}}, booktitle = {{Proc. Int. Conf. on ReConFigurable Computing and FPGAs (ReConFig)}}, isbn = {{978-0-7695-3917-1}}, keywords = {{IMORC, graphics}}, pages = {{119--124}}, publisher = {{IEEE Computer Society}}, title = {{{Communication Performance Characterization for Reconfigurable Accelerator Design on the XD1000}}}, doi = {{10.1109/ReConFig.2009.32}}, year = {{2009}}, } @inproceedings{2261, author = {{Schumacher, Tobias and Plessl, Christian and Platzner, Marco}}, booktitle = {{Proc. Int. Conf. on Field Programmable Logic and Applications (FPL)}}, isbn = {{978-1-4244-3892-1}}, issn = {{1946-1488}}, keywords = {{IMORC, NOC, KNN, accelerator}}, pages = {{338--344}}, publisher = {{IEEE}}, title = {{{An Accelerator for k-th Nearest Neighbor Thinning Based on the IMORC Infrastructure}}}, year = {{2009}}, } @inproceedings{2263, abstract = {{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. }}, author = {{Grad, Mariusz and Plessl, Christian}}, booktitle = {{Proc. Int. Conf. on Engineering of Reconfigurable Systems and Algorithms (ERSA)}}, isbn = {{1-60132-101-5}}, pages = {{319--322}}, publisher = {{CSREA Press}}, title = {{{Woolcano: An Architecture and Tool Flow for Dynamic Instruction Set Extension on Xilinx Virtex-4 FX}}}, year = {{2009}}, } @article{52352, author = {{Schlüter, Alexander and Hesselbach, Jens and Junge, Mark and Lang, Bastian and Mirciov, Sabine and Weishaar, Hans-Georg}}, journal = {{Hessen-Umwelttech}}, pages = {{2--47}}, title = {{{Praxisleitfaden - Energieeffizienz in der Produktion }}}, volume = {{8}}, year = {{2009}}, } @article{52400, author = {{Lang, Bastian and Schlüter, Alexander and Junge, Mark and Mirciov, Sabine}}, journal = {{ŋ[energie]}}, number = {{1}}, title = {{{Simulation als Schlüssel zur Energieeffizienz}}}, year = {{2009}}, } @article{62793, author = {{Unger, J. and Ostwald, Richard and Svendsen, B.}}, issn = {{1960-6206}}, journal = {{International Journal of Material Forming}}, number = {{S1}}, pages = {{907--910}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Thermodynamic multifield modeling of electromagnetic metal forming}}}, doi = {{10.1007/s12289-009-0486-9}}, volume = {{2}}, year = {{2009}}, } @article{15847, author = {{Kwong, N. H. and Schumacher, Stefan and Binder, R.}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, title = {{{Electron-Spin Beat Susceptibility of Excitons in Semiconductor Quantum Wells}}}, doi = {{10.1103/physrevlett.103.056405}}, year = {{2009}}, } @article{13580, author = {{Wippermann, S. and Schmidt, Wolf Gero and Thissen, P. and Grundmeier, Guido}}, issn = {{1862-6351}}, journal = {{physica status solidi (c)}}, number = {{2}}, pages = {{137--140}}, title = {{{Dissociative and molecular adsorption of water onα-Al2O3(0001)}}}, doi = {{10.1002/pssc.200982423}}, volume = {{7}}, year = {{2009}}, } @article{13583, author = {{Scholle, A. and Greulich-Weber, S. and Rauls, E. and Schmidt, Wolf Gero and Gerstmann, Uwe}}, issn = {{0921-4526}}, journal = {{Physica B: Condensed Matter}}, pages = {{4742--4744}}, title = {{{Vacancy clusters created via room temperature irradiation in 6H-SiC}}}, doi = {{10.1016/j.physb.2009.08.123}}, volume = {{404}}, year = {{2009}}, } @article{13579, author = {{Sanna, Simone and Gavrilenko, Alexander V. and Schmidt, Wolf Gero}}, issn = {{1862-6351}}, journal = {{physica status solidi (c)}}, number = {{2}}, pages = {{145--148}}, title = {{{Ab initioinvestigation of the LiNbO3(0001) surface}}}, doi = {{10.1002/pssc.200982456}}, volume = {{7}}, year = {{2009}}, } @article{13577, author = {{Blankenburg, S. and Rauls, E. and Schmidt, Wolf Gero}}, issn = {{1862-6351}}, journal = {{physica status solidi (c)}}, number = {{2}}, pages = {{153--156}}, title = {{{The physics of highly ordered molecular rows}}}, doi = {{10.1002/pssc.200982459}}, volume = {{7}}, year = {{2009}}, } @article{13578, author = {{Sanna, Simone and Gavrilenko, Alexander V. and Schmidt, Wolf Gero}}, issn = {{1862-6351}}, journal = {{physica status solidi (c)}}, pages = {{145--148}}, title = {{{Ab initioinvestigation of the LiNbO3(0001) surface}}}, doi = {{10.1002/pssc.200982456}}, year = {{2009}}, } @article{13665, author = {{Landmann, M. and Rauls, E. and Schmidt, Wolf Gero}}, issn = {{1098-0121}}, journal = {{Physical Review B}}, number = {{4}}, title = {{{First-principles calculations of clean Au(110) surfaces and chemisorption of atomic oxygen}}}, doi = {{10.1103/physrevb.79.045412}}, volume = {{79}}, year = {{2009}}, } @article{13662, author = {{Blankenburg, S and Schmidt, Wolf Gero}}, issn = {{0953-8984}}, journal = {{Journal of Physics: Condensed Matter}}, title = {{{Glutamic acid adsorbed on Ag(110): direct and indirect molecular interactions}}}, doi = {{10.1088/0953-8984/21/18/185001}}, volume = {{21}}, year = {{2009}}, } @article{13659, author = {{Blankenburg, S. and Rauls, E. and Schmidt, Wolf Gero}}, issn = {{1932-7447}}, journal = {{The Journal of Physical Chemistry C}}, pages = {{12653--12657}}, title = {{{Role of Dihydrogen Bonds for the Stabilization of Self-Assembled Molecular Nanostructures}}}, doi = {{10.1021/jp902337p}}, volume = {{113}}, year = {{2009}}, } @article{13664, author = {{Lange, B. and Posner, R. and Pohl, K. and Thierfelder, C. and Grundmeier, Guido and Blankenburg, S. and Schmidt, Wolf Gero}}, issn = {{0039-6028}}, journal = {{Surface Science}}, pages = {{60--64}}, title = {{{Water adsorption on hydrogenated Si(111) surfaces}}}, doi = {{10.1016/j.susc.2008.10.030}}, volume = {{603}}, year = {{2009}}, } @article{13661, author = {{Landmann, M. and Rauls, E. and Schmidt, Wolf Gero}}, issn = {{1932-7447}}, journal = {{The Journal of Physical Chemistry C}}, pages = {{5690--5699}}, title = {{{Chainlike Au−O Structures on Au(110)-(1 × r) Surfaces Calculated from First Principles}}}, doi = {{10.1021/jp810581s}}, volume = {{113}}, year = {{2009}}, } @article{13660, author = {{Chandola, S. and Hinrichs, K. and Gensch, M. and Esser, N. and Wippermann, S. and Schmidt, Wolf Gero and Bechstedt, F. and Fleischer, K. and McGilp, J. F.}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, number = {{22}}, title = {{{Structure of Si(111)-In Nanowires Determined from the Midinfrared Optical Response}}}, doi = {{10.1103/physrevlett.102.226805}}, volume = {{102}}, year = {{2009}}, }