乐胖代购免代理版

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The probability of a failure increases both with the runtime and with the number of system components. For future exascale systems, it is therefore considered critical that strategies are developed to make software resilient against failures. In this article, we present a scalable, distributed, diskless, and resilient checkpointing scheme that can create and recover snapshots of a partitioned simulation domain. We demonstrate the efficiency and scalability of the checkpoint strategy for simulations with up to 40 billion computational cells executing on more than 400 billion floating point values. A checkpoint creation is shown to require only a few seconds and the new checkpointing scheme scales almost perfectly up to more than 260,\u200a000 (218<\/jats:sup>) processes. To recover from a diskless checkpoint during runtime, we realize the recovery algorithms using ULFM MPI. The checkpointing mechanism is fully integrated in a state-of-the-art high-performance multi-physics simulation framework. We demonstrate the efficiency and robustness of the method with a realistic phase-field simulation originating in the material sciences and with a lattice Boltzmann method implementation. <\/jats:p>","DOI":"10.1177\/1094342018767736","type":"journal-article","created":{"date-parts":[[2018,5,3]],"date-time":"2018-05-03T02:24:57Z","timestamp":1525314297000},"page":"571-589","update-policy":"http:\/\/dx.doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":17,"title":["A scalable and extensible checkpointing scheme for massively parallel simulations"],"prefix":"10.1177","volume":"33","author":[{"given":"Nils","family":"Kohl","sequence":"first","affiliation":[{"name":"Chair for System Simulation, Friedrich-Alexander University Erlangen-N\u00fcrnberg, Erlangen, Germany"}]},{"given":"Johannes","family":"H\u00f6tzer","sequence":"additional","affiliation":[{"name":"Institute of Materials and Processes, Karlsruhe University of Applied Sciences, Karlsruhe, Germany"}]},{"given":"Florian","family":"Schornbaum","sequence":"additional","affiliation":[{"name":"Chair for System Simulation, Friedrich-Alexander University Erlangen-N\u00fcrnberg, Erlangen, Germany"}]},{"given":"Martin","family":"Bauer","sequence":"additional","affiliation":[{"name":"Chair for System Simulation, Friedrich-Alexander University Erlangen-N\u00fcrnberg, Erlangen, Germany"}]},{"ORCID":"http:\/\/orcid.org\/0000-0002-2794-9510","authenticated-orcid":false,"given":"Christian","family":"Godenschwager","sequence":"additional","affiliation":[{"name":"Chair for System Simulation, Friedrich-Alexander University Erlangen-N\u00fcrnberg, Erlangen, Germany"}]},{"given":"Harald","family":"K\u00f6stler","sequence":"additional","affiliation":[{"name":"Chair for System Simulation, Friedrich-Alexander University Erlangen-N\u00fcrnberg, Erlangen, Germany"}]},{"given":"Britta","family":"Nestler","sequence":"additional","affiliation":[{"name":"Institute of Materials and Processes, Karlsruhe University of Applied Sciences, Karlsruhe, Germany"},{"name":"Institute for Applied Materials, Karlsruhe Institute of Technology, Karlsruhe, Germany"}]},{"given":"Ulrich","family":"R\u00fcde","sequence":"additional","affiliation":[{"name":"Chair for System Simulation, Friedrich-Alexander University Erlangen-N\u00fcrnberg, Erlangen, Germany"},{"name":"Parallel Algorithms Project, CERFACS, Toulouse, France"}]}],"member":"179","published-online":{"date-parts":[[2018,5,2]]},"reference":[{"key":"bibr1-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1016\/j.camwa.2013.10.001"},{"key":"bibr2-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1142\/S0129183114410095"},{"key":"bibr3-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1016\/j.compfluid.2015.12.010"},{"key":"bibr4-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1016\/j.jocs.2015.02.006"},{"key":"bibr5-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1145\/2807591.2807662"},{"key":"bibr6-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1080\/17445760.2015.1118478"},{"key":"bibr7-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1145\/2063384.2063427"},{"volume-title":"Department of Electrical Engineering and Computer Science, University of Tennessee","year":"2012","author":"Bland W","key":"bibr8-1094342018767736"},{"key":"bibr62-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1007\/978-3-642-33518-1_24"},{"key":"bibr9-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1177\/1094342013488238"},{"key":"bibr10-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1109\/CCGrid.2015.51"},{"key":"bibr11-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevE.93.043302"},{"key":"bibr12-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpdc.2008.12.002"},{"issue":"1","key":"bibr13-1094342018767736","volume":"1","author":"Cappello F","year":"2014","journal-title":"Supercomputing Frontiers and Innovations"},{"key":"bibr14-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1109\/C-M.1975.218955"},{"key":"bibr15-1094342018767736","doi-asserted-by":"publisher","DOI":"10.1145\/1065944.1065973"},{"key":"bibr16-1094342018767736","first-page":"370","volume-title":"Proceedings of annual symposium on fault tolerant computing. 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