PPT-Parallel Virtual File System (PVFS)

aka OrangeFS By Collin Gordon and Lisa Kosiachenko 1 What is PVFS 2 Background information PVFS parallel distributed filesystem for Linux clusters Used in HighPerformance Computing at large scale while Hadoop is primarily used in cloud computing. Unlike sequential algorithms parallel algorithms cannot be analyzed very well in isolation One of our primary measures of goodness of a parallel system will be its scalability Scalability is the ability of a parallel system to take advantage of incr Parallel Databases. The Google File System. Parallel File Systems. Relational Database Technology. Row-stores are good for transactional workloads with many random reads and . updates. , and strong concurrency control requirements. 1. Copyright © 2010 The HDF Group. All Rights Reserved. Quincey Koziol. The HDF Group. koziol@hdfgroup.org. 2. Goal is to be invisible: get same performance with HDF5 as with MPI I/O. Project with. Sarah . Diesburg. COP5641. What is VFS?. Kernel subsystem. Implements the file and file-system-related interfaces provided to user-space programs. Allows programs to make standard interface calls, regardless of file system type. Network File System.  (. NFS. ) is a distributed file system protocol allowing a user on a client computer to access files over a computer network much like local storage is accessed.. Network File system provides . Disk. Vytautas . Tra. škevičius. Software. . Engineering. About . VHD. Virtual Hard Disk (VHD) format is . a. n . image . format . specification. Developed by Microsoft but publically available. Allows the OS to use individual files in the same way as physical hard disks. Vasily Tarasov. . (SBU). Dean Hildebrand . (IBM Almaden). Renu Tewari . (IBM Almaden). Erez Zadok . (SBU). File system and Storage Lab (. F. S. L. ). and a bit more.... Outline. How all that . started. Outline. Virtual Machine. Java Virtual Machine. Dalvik. Virtual Machine. 2. Concept. A virtual. . machine . (VM) is a software emulation of a . real machine so that. a. nother operating system can run in the simulated machine. . Dr. . Damitha. . Karunaratna. . University of Colombo school of . computing. Operating Systems. 1. Virtual memory. Is it necessary to load an entire program to the memory for execution?. If the size of the program is larger than the available memory how can it be execute?. Zhengyang Qu. 1. Northwestern University, IL, US, . Outline. Introduction. System Design & Implementation. Evaluation. Conclusion & Discussion. 2. Background. Evolution of Enterprise Mobile Management (EMM). Zhengyang Qu. 1. Northwestern University, IL, US, . Outline. Introduction. System Design & Implementation. Evaluation. Conclusion & Discussion. 2. Background. Evolution of Enterprise Mobile Management (EMM). Zhengyang Qu. 1. Northwestern University, IL, US, . Outline. Introduction. System Design & Implementation. Evaluation. Conclusion & Discussion. 2. Background. Evolution of Enterprise Mobile Management (EMM). *. Dr. Mark K. Seager. ASCI Tera-scale Systems PI. Lawrence Livermore National Laboratory. POBOX 808, L-60. Livermore, CA 94550. seager@llnl.gov. 925-423-3141. *. Work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract W-7405-Eng-48.. CSE . 410 Winter 2017. Instructor: Teaching Assistants:. Justin Hsia Kathryn Chan, Kevin Bi, Ryan Wong, Waylon Huang, . Xinyu. Sui. Internet of Things Teddy Bear Leaked 2 Million Parent and Kids Message Recordings.