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EXCES: External caching in energy saving storage systems

Luis Useche, Jorge Guerra, Medha Bhadkamkar, Mauricio Alarcon, Raju Rangaswami
2008 High-Performance Computer Architecture  
Power consumption within the disk-based storage subsystem forms a substantial portion of the overall energy footprint in commodity systems.  ...  While earlier studies had focused on disk energy savings alone and had predicted as much as 90% savings, our experiments with EXCES revealed that the overall system energy savings, which accounts for the  ...  External caching for energy saving.  ... 
doi:10.1109/hpca.2008.4658630 dblp:conf/hpca/UsecheGBAR08 fatcat:t72ycvfwqzgyviwv5dtbbx62cu

A Block Replacement Scheme using Analytic Hierarchy Process in Hybrid HDD
하이브리드 하드디스크에서 AHP를 적용한 블록 교체 기법

Jeong-Won Kim
2015 Journal of the Korea Industrial Information Systems Research  
As blocks with enough localities may be located in the non-volatile cache whose size is generally limited, an effective block replacement scheme is required.  ...  관련 연구 플래시 메모리의 히트율을 높이는 EXCES (External caching in energy saving storage system) 기법이 제안되었으나 비용이 높은 측면 이 있다[11].  ...  본 연구의 HHD 는 DRAM cache, NVC, 그리 고 플래터 세 가지 구성된다고 가정한다. 먼저 읽기의 경우 DRAM cache 에 히트되지 않으면 NVC 에서 검색한다. NVC 에도 히트되지 않으 면 최종 플래터에서 블록을 전송한다.  ... 
doi:10.9723/jksiis.2015.20.5.045 fatcat:gztd5nnk2vgvhfwayokurltb4a

A Native and Adaptive Approach for Unified Processing of Linked Streams and Linked Data [chapter]

Danh Le-Phuoc, Minh Dao-Tran, Josiane Xavier Parreira, Manfred Hauswirth
2011 Lecture Notes in Computer Science  
Moreover, external disk access on large Linked Data collections is reduced with the use of data encoding and caching of intermediate query results.  ...  In contrast to the existing systems, CQELS uses a "white box" approach and implements the required query operators natively to avoid the overhead and limitations of closed system regimes.  ...  .), patient monitoring systems (heart rate, blood pressure, etc.), location tracking systems (GPS, RFID, etc.), buildings management systems (energy consumption, environmental conditions, etc.), and cars  ... 
doi:10.1007/978-3-642-25073-6_24 fatcat:aigyxefq6zhcbkxhru3srp7m5u

I/O Scheme of Hybrid Hard Disk Drive for Low Power Consumption and Effective Response Time
저전력과 응답시간 향상을 위한 하이브리드 하드디스크의 입출력 기법

Jeong-Won Kim
2011 Journal of the Korea Society of Computer and Information  
▸Keyword : Hybrid hard disk, prefetching, caching, operating system I. 서 론  ...  In read cache operation, disk blocks with higher priority determined on basis of time as well as spatial localities are prefetched, which can improve response time.  ...  (External caching in energy saving storage system)라는 선반입 기법을 제안하였다.  ... 
doi:10.9708/jksci.2011.16.10.023 fatcat:dknhaifhlbdabkl5ayy6silmca

Service Discovery and Trust in Mobile Social Network in Proximity [article]

Chii Chang, Satish Srirama, Sea Ling
2015 arXiv   pre-print
Service-oriented Mobile Social Network in Proximity (MSNP) lets participants establish new social interactions with strangers in public proximity using heterogeneous platforms and devices.  ...  Such characteristic faces challenges in discovery latency and trustworthiness.  ...  Acknowledgement This research is supported by the European Regional Development Fund through the EXCS, Estonian Science Foundation grant PUT360.  ... 
arXiv:1504.01504v1 fatcat:aeemj3ey6fel3awghfnu4j7hcm

Architecture of a Database System

Joseph M. Hellerstein, Michael Stonebraker, James Hamilton
2007 Foundations and Trends in Databases  
This paper presents an architectural discussion of DBMS design principles, including process models, parallel architecture, storage system design, transaction system implementation, query processor and  ...  Historically, DBMSs were among the earliest multi-user server systems to be developed, and thus pioneered many systems design techniques for scalability and reliability now in use in many other contexts  ...  MySQL also supports storage engines for main-memory and cluster-based storage, and some third-party vendors have announced MySQL-compliant storage engines, but most of the energy in the MySQL userbase  ... 
doi:10.1561/1900000002 fatcat:ve6wkgbgrngppk3cjcbfsevuye

P-Ray: A Software Suite for Multi-core Architecture Characterization [chapter]

Alexandre X. Duchateau, Albert Sidelnik, María Jesús Garzarán, David Padua
2008 Lecture Notes in Computer Science  
cache storage.  ...  e must be able to pin a cache line in the cache storage, releasing it only high-locality references are done with it.  ... 
doi:10.1007/978-3-540-89740-8_13 fatcat:hv2aoouhcve4xc2vlff77k7q4i

Development and parallel implementation of selected configuration interaction methods

Yann Garniron, Anthony Scemama
2019 Zenodo  
The efficiency for the implemented algorithms has been studied, and the code could give way to numerous applications, in particular to obtain reference energies for difficult molecular systems.  ...  This thesis, whose topic is quantum chemistry algorithms, is made in the context of the change in paradigm that has been going on for the last decade, in which the usual sequential algorithms are progressively  ...  In the array storage, the value of 170 ns/integral in the random access case is typical of the latency to fetch a value in the RAM modules when the data is not in any level of cache.  ... 
doi:10.5281/zenodo.2558126 fatcat:cvs3u6tknjgvff7pixv5xb3cvq

CP2K: An electronic structure and molecular dynamics software package

Gloria Tabacchi
2020 Figshare  
Condensed-phase applications involve the calculation of NMR spectra of energy-storage materials, 174,175 biomolecular [176] [177] [178] and hydrogen-bonded systems, [179] [180] [181] [182] as well  ...  It employs a cache-oblivious matrix traversal to fix the order in which matrix blocks need to be computed, to improve memory locality (Traversal phase in Fig. 13) .  ... 
doi:10.6084/m9.figshare.12520709 fatcat:geqacrvi5jbwndgg33wu6nl3hq

CP2K: An electronic structure and molecular dynamics software package - Quickstep: Efficient and accurate electronic structure calculations

Thomas D. Kühne, Marcella Iannuzzi, Mauro Del Ben, Vladimir V. Rybkin, Patrick Seewald, Frederick Stein, Teodoro Laino, Rustam Z. Khaliullin, Ole Schütt, Florian Schiffmann, Dorothea Golze, Jan Wilhelm (+27 others)
2020 Journal of Chemical Physics  
Excellent performance for electronic structure calculations is achieved using novel algorithms implemented for modern high-performance computing systems.  ...  CP2K is an open source electronic structure and molecular dynamics software package to perform atomistic simulations of solid-state, liquid, molecular, and biological systems.  ...  Condensed-phase applications involve the calculation of NMR spectra of energy-storage materials, 174,175 biomolecular [176] [177] [178] and hydrogen-bonded systems, [179] [180] [181] [182] as well  ... 
doi:10.1063/5.0007045 pmid:33687235 fatcat:a5o4bngmcrcslmfj3dcsr5blxi

Resilience and fault tolerance in high-performance computing for numerical weather and climate prediction

Tommaso Benacchio, Luca Bonaventura, Mirco Altenbernd, Chris D Cantwell, Peter D Düben, Mike Gillard, Luc Giraud, Dominik Göddeke, Erwan Raffin, Keita Teranishi, Nils Wedi
2021 The international journal of high performance computing applications  
As the number of cores in top computing facilities pushes into the millions, increased average frequency of hardware and software failures forces users to review their algorithms and systems in order to  ...  The potential impact of these strategies is discussed in relation to current development of numerical weather prediction algorithms and systems towards the exascale.  ...  and energy usage.  ... 
doi:10.1177/1094342021990433 fatcat:tfhovb6xmfemtkgzzrkpiiiju4

Poor Municipal Waste Management and Its Health Implication: A Case Study of Kabul City

Azizullah Yosufi, Bamyan University, Afghanistan
2019 Education Quarterly Reviews  
energy system in the coming years..  ...  Deep water drilling without adequate investment in recharge basins or storage structures is degrading the aquifers on which much of traditional irrigation systems depend.  ...  A fair system for settlement of land disputes will be in place by Jaddi 1386 (end-2007) .  ... 
doi:10.31014/aior.1993.02.02.75 fatcat:xbsybef4prafref767vxicfeni

Islamic Republic of Afghanistan: Poverty Reduction Strategy Paper

International Monetary Fund
2008 IMF Staff Country Reports  
Updated every three years with annual progress reports, they describe the country's macroeconomic, structural, and social policies in support of growth and poverty reduction, as well as associated external  ...  Poverty Reduction Strategy Papers (PRSPs) are prepared by member countries in broad consultation with stakeholders and development partners, including the staffs of the World Bank and the IMF.  ...  towards economic growth and poverty reduction in Afghanistan.  ... 
doi:10.5089/9781451800388.002 fatcat:h34zmloufvcmljpddpiupst7ra