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UID:submissions.supercomputing.org_SC23_sess166@linklings.com
SUMMARY:High Performance I/O
DESCRIPTION:Fine-Grained Policy-Driven I/O Sharing for Burst Buffers\n\nA 
 burst buffer is commonly deployed on large-scale supercomputers to bridge 
 the performance gap between the shared file system and the I/O needs of mo
 dern supercomputing applications. Existing I/O sharing methods either requ
 ire resource isolation, offline profiling, or repeated execution that sign
 if...\n\n\nEd Karrels (University of Illinois), Lei Huang (Texas Advanced 
 Computing Center (TACC)), Yuhong Kan and Ishank Arora (University of Texas
 ), Yinzhi Wang (Texas Advanced Computing Center (TACC)), Daniel S. Katz an
 d William Gropp (University of Illinois), and Zhao Zhang (Texas Advanced C
 omputing Center (TACC))\n---------------------\nXfast: Extreme File Attrib
 ute Stat Acceleration for Lustre\n\nDirectory tree walks on parallel file 
 systems are costly operations frequently required by many storage manageme
 nt tasks. Even listing the contents of a single directory can take minutes
  to hours for huge directories, as the tree walk performance of parallel f
 ile systems in Linux is severely throttl...\n\n\nYingjin Qian (DataDirect 
 Networks (DDN)), Wen Cheng and Lingfang Zeng (Zhejiang Lab), Xi Li (DataDi
 rect Networks (DDN)), Marc-André Vef (Johannes Gutenberg University Mainz)
 , Andreas Dilger and Siyao Lai (Whamcloud Inc), Shuichi Ihara (DataDirect 
 Networks (DDN)), Yong Fan (Intel Corporation), and André Brinkmann (Johann
 es Gutenberg University Mainz)\n---------------------\nI/O in WRF: A Case 
 Study in Modern Parallel I/O Techniques\n\nLarge-scale parallel applicatio
 ns can face significant I/O performance bottlenecks, making efficient I/O 
 crucial. This work presents a comparative study of several parallel I/O im
 plementations in the Weather Research and Forecasting model, including Pne
 tCDF blocking and non-blocking I/O options, net...\n\n\nZanhua Huang, Kaiy
 uan Hou, Ankit Agrawal, and Alok Choudhary (Northwestern University); Robe
 rt Ross (Argonne National Laboratory (ANL)); and Wei-Keng Liao (Northweste
 rn University)\n\nTag: Data Analysis, Visualization, and Storage, I/O and 
 File Systems, State of the Practice\n\nRegistration Category: Tech Program
  Reg Pass\n\nReproducibility Badges: Artifact Available, Artifact Function
 al, Results Reproduced\n\nSession Chair: Sarah Neuwirth (Johannes Gutenber
 g University Mainz)
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