Poll — Designing database application involves: a) Design of Database Schema b) Design of programs that access and update data c) Design of security scheme to control access to data d) All of the above Design Phases: How to Design a Database Schema? • Characterize the data needs of the prospective users. • Choose a […]
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PowerPoint Presentation Review SQL and Relational Databases What is a Database Management System (DBMS) ? ______________________________________________ 2 ● DBMS contain information about a particular enterprise, and includes: ○ Collection of interrelated data ○ Set of programs to access the data ● Primary Goal: Provide an abstract view of the data and environment that is both
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Project 1: The Enigma Introduction This programming assignment is intended to exercise a few useful data structures and an object-based view of a programming problem. There is some background reading, but the necessary program is not (or rather need not be) terribly big. The conceptual video walkthrough is located here, which we HIGHLY RECOMMEND watching.
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1. All random variables in the following questions are defined on a probability space (Ω,F , P ), and G denotes a σ-algebra contained in F . (a) Let X and Y be random variables such that E|X| < ∞. Define precisely the conditional expectations E(X|G) and E(X|Y ). [7 marks] (b) Let X be
Microsoft PowerPoint – COMP528 HAL11 MPI datatypes, rules, motivation for collectives.pptx Dr Michael K Bane, G14, Computer Science, University of Liverpool m.k. .uk https://cgi.csc.liv.ac.uk/~mkbane/COMP528 COMP528: Multi-core and Multi-Processor Programming 11-HAL RECAP • MPI: Message Passing Interface • One standard • Various implementations • SPMD • Point-to-point • Pair-wise comms • One sends: MPI_Send • One
Microsoft PowerPoint – COMP528 SYNC04 performance considerations.pptx Dr Michael K Bane, G14, Computer Science, University of Liverpool m.k. .uk https://cgi.csc.liv.ac.uk/~mkbane/COMP528 COMP528: Multi-core and Multi-Processor Programming 4 – SYNC This session will be RECORDED… This allows you to revise later The session will be mainly me presenting… but it is good to have interaction But if
Microsoft PowerPoint – COMP528 HAL24 Directives for Accelerators.pptx Dr Michael K Bane, G14, Computer Science, University of Liverpool m.k. .uk https://cgi.csc.liv.ac.uk/~mkbane/COMP528 COMP528: Multi-core and Multi-Processor Programming 24 – HAL DIRECTIVES FOR ACCELERATORS (AN OVERVIEW) OpenMP for Accelerators Further Reading “Accelerators” ?? • GPU or GPGPU – [general purpose] graphics processing unit – good to accelerate
Microsoft PowerPoint – COMP528 HAL10 MPI modes.pptx Dr Michael K Bane, G14, Computer Science, University of Liverpool m.k. .uk https://cgi.csc.liv.ac.uk/~mkbane/COMP528 COMP528: Multi-core and Multi-Processor Programming 10 – HAL DISTRIBUTED MEMORY • Access memory of another node • Latency & bandwidth issues • IB .v. gigE • Expandable (memory & nodes) • Programming 99% always MPI
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Microsoft PowerPoint – COMP528 HAL25 OpenACC.pptx Dr Michael K Bane, G14, Computer Science, University of Liverpool m.k. .uk https://cgi.csc.liv.ac.uk/~mkbane/COMP528 COMP528: Multi-core and Multi-Processor Programming 25 – HAL OpenACC for GPUs Directives for accelerators Programming Model • some code on host (the CPU) • “offload” a “kernel” to the “accelerator” – offloading possible (in theory) via
Microsoft PowerPoint – COMP528 HAL23 OpenMP tasks v1.1.pptx Dr Michael K Bane, G14, Computer Science, University of Liverpool m.k. .uk https://cgi.csc.liv.ac.uk/~mkbane/COMP528 COMP528: Multi-core and Multi-Processor Programming 23 – HAL OPENMP TASKS (OVERVIEW) Background Reading • “Using OpenMP – The Next Step: Affinity, Accelerators, Tasking and SIMD”, van der Pas et al. MIT Press (2017) –
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