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Computer-Aided Material Design for Crash Boxes Made of High Manganese Steels

Angela Quadfasel, Marco Teller, Manjunatha Madivala, Christian Haase, Franz Roters, Gerhard Hirt
2019 Metals  
In this work, a multi-scale finite element simulation approach was used to analyze the crash behavior of different material conditions of an HMnS.  ...  The proposed simulation methodology reduces the experimental time and effort for crash box design.  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/met9070772 fatcat:y3oj5vxwjvhwbea74cypcuhrca

Enhancing recovery using an SSD buffer pool extension

Bishwaranjan Bhattacharjee, Kenneth A. Ross, Christian Lang, George A. Mihaila, Mohammad Banikazemi
2011 Proceedings of the Seventh International Workshop on Data Management on New Hardware - DaMoN '11  
We quantify the overhead of supporting recovery and show that the overhead is minimal.  ...  In this paper, we describe a mechanism extending our previous work on a SSD Bufferpool on a DB2 LUW prototype, to exploit the SSD persistence for recovery and normal restart.  ...  To see an example of what could go wrong, imagine an Aries-style [9] recovery mechanism in which the SSD is consulted for reads, without hard disk I/O.  ... 
doi:10.1145/1995441.1995443 dblp:conf/damon/BhattacharjeeRLMB11 fatcat:3xlerzoyvbdohfw2tvqelqallq

Maintenance of Monitoring Systems Throughout Self-healing Mechanisms [chapter]

Clarissa Cassales Marquezan, André Panisson, Lisandro Zambenedetti Granville, Giorgio Nunzi, Marcus Brunner
2008 Lecture Notes in Computer Science  
We evaluate our solution in terms of recovery time when fail-stop crashes occur in the monitoring system.  ...  This paper also describes a set of experimental evaluations whose results present the tradeoff between the time required to recover the monitoring infrastructure when failures occur, and the associated  ...  The views expressed in this paper are solely those of the authors and do not necessarily represent the views of their employers, the 4WARD project, or the Commission of the European Union.  ... 
doi:10.1007/978-3-540-87353-2_14 fatcat:m3jypxzikngyhdtvxkkqqovlsy

A robust and lightweight stable leader election service for dynamic systems

Nicolas Schiper, Sam Toueg
2008 2008 IEEE International Conference on Dependable Systems and Networks With FTCS and DCC (DSN)  
We describe the implementation and experimental evaluation of a fault-tolerant leader election service for dynamic systems.  ...  Our experimental evaluation indicates that it is also highly robust and inexpensive to run in practice. *  ...  The average leader recovery time of S 2 , however, is slightly larger than the one of S 1 (this is due to the leader forwarding mechanism of S 2 which slightly delays the demotion of a crashed leader).  ... 
doi:10.1109/dsn.2008.4630089 dblp:conf/dsn/SchiperT08 fatcat:rawwo25lovfp5exfnnzsgnqfki

Application-oriented strain-hardening engineering of high-manganese steels [article]

Christian Haase, Franz Roters, Angela Quadfasel
2019 arXiv   pre-print
That is facilitated by strong suppression of dynamic recovery, predominant planar glide, and the activation of additional deformation mechanisms, such as transformation-induced plasticity (TRIP) and twinning-induced  ...  In this work, we present an approach that employs alloy selection by stacking-fault energy calculations, which enables activation/suppression of specific deformation mechanisms.  ...  Quantum mechanics guided design of new Fe based materials". The authors would like to thank all researchers contributing to Cloud I "Strain-hardening engineering" within in the SFB 761.  ... 
arXiv:1909.08677v1 fatcat:ht23yil3rzbr3cwt6jsofk3fxe

XNET: a reliable content-based publish/subscribe system

R. Chand, P. Felber
2004 Proceedings of the 23rd IEEE International Symposium on Reliable Distributed Systems, 2004.  
We analyze the efficiency of our techniques in a large scale experimental deployment on the PlanetLab testbed.  ...  In this paper, we present the architecture of the XNET XML content network and we detail the mechanisms that we implemented to gracefully handle failures and maintain the system state consistent with the  ...  In Section 4, we focus on the mechanisms that we implemented in our system to achieve reliability. Section 5 presents results from experimental evaluation. Finally, Section 6 concludes the paper.  ... 
doi:10.1109/reldis.2004.1353027 dblp:conf/srds/ChandF04 fatcat:cn5vwo54mfbwhigzf3qy6bojlm

Maintaining Network QoS Across NIC Device Driver Failures Using Virtualization

Michael Le, Andrew Gallagher, Yuval Tamir, Yoshio Turner
2009 2009 Eighth IEEE International Symposium on Network Computing and Applications  
Wes how that the standard Xen configuration, enhanced with simple detection and recovery mechanisms, cannot provide such QoS.  ...  However, with NIC drivers isolated in twov irtual machines, in a primary/warm-sparec onfiguration, the system can recoverf rom an overwhelming majority of NIC driverfailures in under 10ms.  ...  Our evaluation is based on extensive fault injection and includes an evaluation of a practical detection mechanism in addition to the recovery procedure. VII.  ... 
doi:10.1109/nca.2009.42 dblp:conf/nca/LeGTT09 fatcat:zkytq4mt7bhedfyhu4ehw5ko6m

Fault-Tolerant Scheduling of Fine-Grained Tasks in Grid Environments

Gosia Wrzesińska, Rob V. van Nieuwpoort, Jason Maassen, Thilo Kielmann, Henri E. Bal
2006 The international journal of high performance computing applications  
a crash of one or more nodes.  ...  We study the impact of our fault-tolerance mechanism on application efficiency, both on the Dutch DAS-2 system and using the European testbed of the EC-funded project GridLab.  ...  It has been supported partly by a BSIK grant from the Dutch Ministry of Education, Culture and Science (OC&W) and is part of the ICT innovation program of the Ministry of Economic Affairs (EZ).  ... 
doi:10.1177/1094342006062528 fatcat:7ttqiq2hirgg5jcwtywx3wklm4

Dependability evaluation and benchmarking of Network Function Virtualization Infrastructures

Domenico Cotroneo, Luigi De Simone, Antonio Ken Iannillo, Anna Lanzaro, Roberto Natella
2015 Proceedings of the 2015 1st IEEE Conference on Network Softwarization (NetSoft)  
In this paper, we propose a methodology for the dependability evaluation and benchmarking of NFV Infrastructures (NFVIs), based on fault injection.  ...  Network Function Virtualization (NFV) is an emerging solution that aims at improving the flexibility, the efficiency and the manageability of networks, by leveraging virtualization and cloud computing  ...  support the experimental evaluation of an NFVI.  ... 
doi:10.1109/netsoft.2015.7116123 dblp:conf/netsoft/CotroneoSILN15 fatcat:hnvqxb7bvnhlvoutu7kfrfcijm

Optimizing crash dump in virtualized environments

Yijian Huang, Haibo Chen, Binyu Zang
2010 Proceedings of the 6th ACM SIGPLAN/SIGOPS international conference on Virtual execution environments - VEE '10  
We have implemented a working prototype, Vicover, that optimizes core dump on system crash of a virtual machine in Xen, to minimize the MTTR of core dump and recovery as a whole.  ...  Finally, we implement disk I/O rate control between core dump and the newly spawned VM according to user-tuned rate control policy to balance the time of crash dump and quality of services in the recovery  ...  Experimental results of core dump and recovery from system crash of a virtualized TPC-W server on the Dell PowerEdge R900 machine show that the downtime is reduced by 5X with concurrent core dump and recovery  ... 
doi:10.1145/1735997.1736003 dblp:conf/vee/HuangCZ10 fatcat:fs67p6tjevgzdct5otnf3pzv5i

An adaptive replication scheme for elastic data stream processing systems

Thomas Heinze, Mariam Zia, Robert Krahn, Zbigniew Jerzak, Christof Fetzer
2015 Proceedings of the 9th ACM International Conference on Distributed Event-Based Systems - DEBS '15  
This paper combines these two fault tolerance mechanisms in one system to minimize the number of violations of a user-defined recovery time threshold and to reduce the overall resource consumption compared  ...  Based on a real-world evaluation we show that our system is able to reduce the resource usage by up to 19% compared to an active replication scheme.  ...  The runtime of the recovery process depends on multiple factors like shown in Figure 4 , where we present the experimental results for a series of crash experiments with our prototype.  ... 
doi:10.1145/2675743.2771831 dblp:conf/debs/HeinzeZKJF15 fatcat:whqto6iybzesjj5quojyqitl3y

Dynamic content web applications: Crash, failover, and recovery analysis

Luiz E. Buzato, Gustavo M. D. Vieira, Willy Zwaenepoel
2009 2009 IEEE/IFIP International Conference on Dependable Systems & Networks  
This work assesses how crashes and recoveries affect the performance of a replicated dynamic content web application.  ...  When subject to an identical faultload and a shopping workload, a five-replicas RobustStore maintains an accuracy of 99.999%.  ...  Introduction In this work, we evaluate how crashes, failovers, and recoveries affect the performance and availability of Ro-bustStore, a highly available dynamic content web application.  ... 
doi:10.1109/dsn.2009.5270331 dblp:conf/dsn/BuzatoVZ09 fatcat:jpzvulnmxzc4zesvmhlcsw6y5y

ReHype

Michael Le, Yuval Tamir
2011 Proceedings of the 7th ACM SIGPLAN/SIGOPS international conference on Virtual execution environments - VEE '11  
We introduce ReHype, a mechanism for recovery from hypervisor failures by booting a newi nstance of the hypervisor while preserving the state of running VMs.  ...  Our experimental results showt hat the ReHype prototype can successfully recoverf rom over9 0% of detected hypervisor failures.  ...  Experimental Setup This section presents the experimental setup used to evaluate the ReHype prototype.  ... 
doi:10.1145/1952682.1952692 dblp:conf/vee/LeT11 fatcat:keznjcqf5fckfpawzn3ih7pgwe

Log-Less Metadata Management on Metadata Server for Parallel File Systems

Jianwei Liao, Guoqiang Xiao, Xiaoning Peng
2014 The Scientific World Journal  
The experimental results show that this newly proposed mechanism can significantly improve the speed of metadata processing and render a better I/O data throughput, in contrast to conventional metadata  ...  Besides, a complete metadata recovery can be achieved by replaying the backup logs cached by all involved clients, when the metadata server has crashed or gone into nonoperational state exceptionally.  ...  Acknowledgments This work was supported partially by National Natural Science Foundation of China (no. 61303038) and Natural Science Foundation Project of CQ CSTC (no. CSTC2013JCYJA40050).  ... 
doi:10.1155/2014/813521 pmid:24892093 pmcid:PMC4032672 fatcat:75disrmolrftzcm26qeknovgny

Characterizing Performance and Energy-Efficiency of the RAMCloud Storage System

Yacine Taleb, Shadi Ibrahim, Gabriel Antoniu, Toni Cortes
2017 2017 IEEE 37th International Conference on Distributed Computing Systems (ICDCS)  
Surprisingly, we show that replication can also play a negative role in crash-recovery.  ...  In this paper, by the means of experimental evaluation, we have studied the performance and energy-efficiency of RAM-Cloud -a well-known in-memory storage system.  ...  At the end of the recovery the segments are cleaned from old backups. III. EXPERIMENTAL SETTINGS A.  ... 
doi:10.1109/icdcs.2017.51 dblp:conf/icdcs/TalebIAC17 fatcat:pa7s2k6v4zgu5oa5ldz6vqqfbi
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