Scraped from: IPDPS18 Advance Program
Link: Program | HCW 2018 27th International Heterogeneity in Computing Workshop
Abstract: Heterogeneity in computing has been with us for a long time, and it is here to stay for a foreseeable future, too. In this talk, with some diverse set of application examples, ranging from histopathology image analysis to graph analytics, we will discuss the challenges of application developers for developing efficient, scalable and maintainable applications for heterogeneous systems, and associated opportunities for systems researchers in this field.
Bio: Ümit V. Çatalyürek is currently a Professor and the Associate Chair of the School of Computational Science and Engineering in the College of Computing at the Georgia Institute of Technology. He received his Ph.D., M.S. and B.S. in Computer Engineering and Information Science from Bilkent University, Turkey, in 2000, 1994 and 1992, respectively. Dr. Çatalyürek is a Fellow of IEEE, member of ACM and SIAM, and the elected Chair for IEEE TCPP for 2016-2019, and Vice-Chair for ACM SIGBio for 2015-2018 term. Dr. Çatalyürek currently serves as the Editor-in-Chief for Parallel Computing, and as an editorial board member for IEEE Transactions on Parallel and Distributed Computing. He also serves on the program committees and organizing committees of numerous international conferences. Dr. Çatalyürek is a recipient of an NSF CAREER award and is the primary investigator of several awards from the NSF, DTRA, DoE, and NIH. He has co-authored more than 200 peer-reviewed articles, invited book chapters and papers. His main research areas are in parallel computing, combinatorial scientific computing and biomedical informatics. More information about Dr. Çatalyürek and his research group can be found at http://cc.gatech.edu/~umit.
Link: hppac18
Abstract: In this talk, I will focus on large-scale systems subject to failures, and explain how to account for energy consumption when dealing with classical resilience techniques. Many parallel scientific applications use non-blocking and periodic coordinated checkpointing to enforce resilience. I will provide a model and detailed formulas for total execution time and consumed energy, characterize the optimal period for both objectives, and assess the range of time/energy trade-offs to be made by instantiating the model with a set of realistic scenarios for Exascale systems. Also, the use of dynamic voltage and frequency scaling (DVFS) can help save energy, but at the price of performance degradation. Consider the execution model where a set of K different speeds is given, and whenever a failure occurs, a different re-execution speed may be used. Can this help? I will address the following bi-criteria problem: how to compute the optimal checkpointing period to minimize energy consumption while bounding the degradation in performance. We solve this bi-criteria problem by providing a closed-form solution for the checkpointing period, and demonstrate via a comprehensive set of simulations that a different re-execution speed can indeed help.
Bio: Anne Benoit is an associate professor in the Computer Science Laboratory LIP at École Normale Supérieure de Lyon, France, and she is currently a visiting associate professor at School of Computational Science and Engineering, Georgia Tech, Atlanta, USA. She received the PhD degree from Institut National Polytechnique de Grenoble in 2003, and the Habilitation à Diriger des Recherches (HDR) from ENS Lyon in 2009. She is the author of 43 papers published in international journals, and 85 papers published in international conferences. She is the advisor of 9 PhD theses. Her research interests include algorithm design and scheduling techniques for parallel and distributed platforms, and also the performance evaluation of parallel systems and applications, with a focus on energy awareness and resilience. She is Associate Editor of IEEE TPDS and Elsevier JPDC. She is the program chair of several workshops and conferences, in particular she is the program chair for HiPC’16, ICPP’17, SC’17, and IPDPS’18. She is a senior member of the IEEE, and she has been elected a Junior Member of Institut Universitaire de France in 2009.
Anne Benoit, ENS Lyon and Georgia Tech
http://www.graphanalysis.org/workshop2018.html
http://web.cse.ohio-state.edu/~lu.932/hpbdc2018/
http://www.mcs.anl.gov/events/workshops/ashes/2018/program.php
https://sites.google.com/site/hppac18/
http://hpc.pnl.gov/graml/index.html
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