Filters








5,724 Hits in 5.5 sec

NERO: Accelerating Weather Prediction using Near-Memory Reconfigurable Fabric [article]

Gagandeep Singh, Dionysios Diamantopoulos, Juan Gómez-Luna, Christoph Hagleitner, Sander Stuijk, Henk Corporaal, Onur Mutlu
2021 arXiv   pre-print
NERO reduces the energy consumption by 12x and 35x for the same two kernels over the POWER9 system with an energy efficiency of 1.61 GFLOPS/Watt and 21.01 GFLOPS/Watt.  ...  However, when solving large-scale weather prediction simulations, state-of-the-art CPU and GPU implementations suffer from limited performance and high energy consumption.  ...  This frequent data movement has a severe impact on overall system performance and energy efficiency.  ... 
arXiv:2107.08716v1 fatcat:2kthhs3t4rblbmmlmthnqbfdq4

NERO: A Near High-Bandwidth Memory Stencil Accelerator for Weather Prediction Modeling [article]

Gagandeep Singh, Dionysios Diamantopoulos, Christoph Hagleitner, Juan Gomez-Luna, Sander Stuijk, Onur Mutlu, Henk Corporaal
2020 arXiv   pre-print
NERO reduces the energy consumption by 22x and 29x for the same two kernels over the POWER9 system with an energy efficiency of 1.5 GFLOPS/Watt and 17.3 GFLOPS/Watt.  ...  However, when solving large-scale weather prediction simulations, state-of-the-art CPU and GPU implementations suffer from limited performance and high energy consumption.  ...  Figure 1 shows the roofline models of the • We evaluate the performance and energy consumption of two FPGA cards (AD9V3 [2] and AD9H7 [1]) used in this our accelerator and perform  ... 
arXiv:2009.08241v1 fatcat:mj6kwwbhhne5xa7y2ilppi3ora

FPGA-based Near-Memory Acceleration of Modern Data-Intensive Applications [article]

Gagandeep Singh, Mohammed Alser, Damla Senol Cali, Dionysios Diamantopoulos, Juan Gómez-Luna, Henk Corporaal, Onur Mutlu
2021 arXiv   pre-print
Recent FPGAs couple a reconfigurable fabric with high-bandwidth memory (HBM) to enable more efficient data movement and improve overall performance and energy efficiency.  ...  Our evaluation demonstrates large speedups and energy savings over a high-end IBM POWER9 system and a conventional FPGA board with DDR4 memory.  ...  Special thanks to IBM Research Europe, Zurich for providing access to IBM systems. This work was partially funded by Eindhoven University of Technology and ETH Zürich.  ... 
arXiv:2106.06433v1 fatcat:mlt5wdeyufa45hcij5aiedmgxm

Near-global climate simulation at 1 km resolution: establishing a performance baseline on 4888 GPUs with COSMO 5.0

Oliver Fuhrer, Tarun Chadha, Torsten Hoefler, Grzegorz Kwasniewski, Xavier Lapillonne, David Leutwyler, Daniel Lüthi, Carlos Osuna, Christoph Schär, Thomas C. Schulthess, Hannes Vogt
2017 Geoscientific Model Development Discussions  
The dynamical core of the model has been completely rewritten using a domain-specific language (DSL) for performance portability across different hardware architectures.  ...  At a grid spacing of 930 m (1.9 km), we achieve a simulation throughput of 0.043 (0.23) simulated years per day and an energy consumption of 596 MWh per simulated year.  ...  The COSMO D column is the evaluation of current COSMO 15 partitioning in our model.  ... 
doi:10.5194/gmd-2017-230 fatcat:hqwm2u54qra7lpvnh4yo6djcre

Near-global climate simulation at 1 km resolution: establishing a performance baseline on 4888 GPUs with COSMO 5.0

Oliver Fuhrer, Tarun Chadha, Torsten Hoefler, Grzegorz Kwasniewski, Xavier Lapillonne, David Leutwyler, Daniel Lüthi, Carlos Osuna, Christoph Schär, Thomas C. Schulthess, Hannes Vogt
2018 Geoscientific Model Development  
The dynamical core of the model has been completely rewritten using a domain-specific language (DSL) for performance portability across different hardware architectures.  ...  At a grid spacing of 930<span class="thinspace"></span>m (1.9<span class="thinspace"></span>km), we achieve a simulation throughput of 0.043 (0.23) simulated years per day and an energy consumption of  ...  Also, the authors would like to acknowledge the Center for Climate Systems Modeling (C2SM) and the Federal Office of Meteorology and Climatology MeteoSwiss for their support.  ... 
doi:10.5194/gmd-11-1665-2018 fatcat:zccnzfgag5g4bkuu6vxsyh3jaq

Ab initio prediction of structuring/mesoscale inhomogeneities in surfactant-free microemulsions and hydrogen-bonding-free microemulsions

Maximilian Hahn, Sebastian Krickl, Thomas Buchecker, Gašper Jošt, Didier Touraud, Pierre Bauduin, Arno Pfitzner, Andreas Klamt, Werner Kunz
2019 Physical Chemistry, Chemical Physics - PCCP  
Prediction of microemulsion-like structuring in surfactant-free and hydrogen-bonding-free systems.  ...  Acknowledgements We thank Thomas Zemb Notes and references  ...  As shown by Klamt et al, the COSMOplex 27 method is a powerful and efficient extension of the COSMO-RS model andby iteration of the previously described steps to self-consistencyallows for the self-consistent  ... 
doi:10.1039/c8cp07544a fatcat:entnyswh4bfprkvk2hlng2kyla

COSMO-susCAMPD: Sustainable Solvents from Combining Computer-Aided Molecular and Process Design with Predictive Life Cycle Assessment

Lorenz Fleitmann, Johanna Kleinekorte, Kai Leonhard, André Bardow
2021 Chemical Engineering Science  
The framework builds on the COSMO-CAMPD method for predictive design of solvents using COSMO-RS and pinch-based process models.  ...  COSMO-susCAMPD thus enables the holistic environmental design of solvents using cradle-to-grave LCA. Supporting Information available online at LINK SI.  ...  By this as- In COSMO-susCAMPD, the process model not only evaluates process 215 performance but also provides process data as LCI of the use phase for gate-to-gate LCIA. 2.  ... 
doi:10.1016/j.ces.2021.116863 fatcat:5u4qwb7f7ndclnisvs23q5qiue

A HIERARCHICAL MODEL FOR DISTRIBUTED COLLABORATIVE COMPUTATION IN WIRELESS SENSOR NETWORKS

Mitali Singh, Viktor K. Prasanna
2004 International Journal of Foundations of Computer Science  
Clustering is an important characteristic of most sensor applications. In this paper we define COSMOS, the Cluster-based, heterOgeneouS MOdel for Sensor networks.  ...  The model assumes a hierarchical network architecture comprising of a large number of low cost sensors with limited computation capability, and fewer number of powerful clusterheads, uniformly distributed  ...  Algorithms must evaluate the tradeoffs between the QoS requirements of the sensor application and the energy and time overheads. 9.  ... 
doi:10.1142/s012905410400256x fatcat:kj22hnsplba7nkgsj3hlfw3lj4

Systems Analysis of SO2-CO2 Co-Capture from a Post-Combustion Coal-Fired Power Plant in Deep Eutectic Solvents

Kyle McGaughy, M. Toufiq Reza
2020 Energies  
The system design of the DES-based CO2 and SO2 capture was based on the National Energy Technology Laboratory's (NETL) 550 MWe pulverized coal-fired power plant model using Illinois #06 coal.  ...  Physical properties of DES were evaluated using both density functional theory (DFT)-based modeling as well as with documented properties from the literature.  ...  All experiments were completed at the Institute for Sustainable Energy and the Environment while the authors were at Ohio University.  ... 
doi:10.3390/en13020438 fatcat:m3fbkkqcdzgw7o7tajbgh6uu7m

Predictions of flavonoid solubility in ionic liquids by COSMO-RS: experimental verification, structural elucidation, and solvation characterization

Zheng Guo, Bena-Marie Lue, Kaj Thomasen, Anne S. Meyer, Xuebing Xu
2007 Green Chemistry  
Acknowledgements The authors thank A. Klamt  ...  To establish an efficient IL-based enzymatic reaction system to product lipophilic derivatives of flavonoids, there exist similar obstacles for the setup of such a reaction system to fulfill the requirement  ...  Most importantly, being a sound physical founded model, COSMO-RS could give reasonable force field analysis in a complicated system and therefore is able to quantify the function property of the structural  ... 
doi:10.1039/b709786g fatcat:vjffkdvtnzgl5jxrealilgtwf4

The importance of plume rise on the concentrations and atmospheric impacts of biomass burning aerosol

Carolin Walter, Saulo R. Freitas, Christoph Kottmeier, Isabel Kraut, Daniel Rieger, Heike Vogel, Bernhard Vogel
2016 Atmospheric Chemistry and Physics  
Using this plume rise model, comparisons with satellite images in the visible spectral range show a very good agreement between the simulated and observed spatial distributions of the biomass burning plume  ...  </strong> We quantified the effects of the plume rise of biomass burning aerosol and gases for the forest fires that occurred in Saskatchewan, Canada, in July 2010.  ...  Conclusions We extended the model system COSMO-ART with an online-coupled one-dimensional plume rise model to parametrize the effective source heights for vegetation fires with high energy input.  ... 
doi:10.5194/acp-16-9201-2016 fatcat:3ds4c7qc3rabtpflpcrdetmu7u

The Importance of Plume Rise on the Concentrations and Atmospheric Impacts of Biomass Burning Aerosol

Carolin Walter, Saulo R. Freitas, Christoph Kottmeier, Isabel Kraut, Daniel Rieger, Heike Vogel, Bernhard Vogel
2016 Atmospheric Chemistry and Physics Discussions  
Approximately 30 % of the fires exceed the height of 2 km and the maximum height is 8.6 km.  ...  Using this plume rise model, comparisons with satellite images in the visible spectral range show a very good agreement between the simulated and observed spatial distributions of the biomass burning plume  ...  Conclusions We extended the model system COSMO-ART with an online-coupled one-dimensional plume rise model to parametrize the effective source heights for vegetation fires with high energy input.  ... 
doi:10.5194/acp-2015-964 fatcat:gdayj4lkvvaexgtni5k3hnu4kq

Architecting Optically-Controlled Phase Change Memory [article]

Aditya Narayan, Yvain Thonnart, Pascal Vivet, Ayse K. Coskun, Ajay Joshi
2021 arXiv   pre-print
Our evaluation of a 2.5D-integrated system containing a processor and COSMOS demonstrates 2.14x average speedup compared to an EPCM system.  ...  These challenges limit the performance of data-intensive applications running on computing systems with EPCMs.  ...  We show that COSMOS designed with state-of-the-art technology provides similar performance and energy as DDR4.  ... 
arXiv:2107.11516v1 fatcat:eiouduid2jajjhdichyws56qly

Coupling of the regional climate model COSMO-CLM using OASIS3-MCT with regional ocean, land surface or global atmosphere model: description and performance

Stefan Weiher, Naveed Akhtar, Jennifer Brauch, Marcus Breil, Edouard Davin, Ha T. M. Ho-Hagemann, Eric Maisonnave, Markus Thürkow, Andreas Will
2016 Geoscientific Model Development Discussions  
We present the prototype of a regional climate system model based on the COSMO-CLM regional climate model coupled with several model components, analyze the performance of the couplings and present a strategy  ...  Baltic Sea (NEMO-NORDIC and TRIMNP+CICE) and the atmospheric component of an earth system model (MPI-ESM).  ...  These are the performances of the model components, of the coupling library and of the coupled system.  ... 
doi:10.5194/gmd-2016-47 fatcat:dc3pgxwxebdzhdqe2grgs3qjb4

Integration of Building Information Modelling (BIM) and Sensor Technology

Zhen Liu, Zhiyu Deng, Peter Demian
2018 Proceedings of the 2nd International Conference on Computer Science and Application Engineering - CSAE '18  
This paper provides a brief review to evaluate and clarify the state-of-art for the integration of BIM and sensor technology. A systematic review approach was adopted.  ...  CCS CONCEPTS • Information Systems and Applications → Sensor information systems; Building Information Modelling; Communication Networks →Structural sensor network  ...  ACKNOWLEDGMENTS The authors gratefully acknowledge the support from the South China University of Technology, China (grant number: j2rs/K5172210), P. R. China.  ... 
doi:10.1145/3207677.3277991 fatcat:jd66pjiarzh7hahg5t2vnv6chy
« Previous Showing results 1 — 15 out of 5,724 results