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1 AMS 200 Week 3 Computing Resources and Electronic Resources Hongyun Wang

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2 SOE Computing Resources http://support.soe.ucsc.edu/ Unix/Linux Servers Compute cluster Interactive servers Compute servers Workstation Labs BE 308 and BE 316 E2 205 Wireless Network SOE-NAT (retiring soon) SOE-WPA Printing Where can I print? How can I set up my laptop to print?

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3 SOE Computing Resources (continued) http://support.soe.ucsc.edu/ Policies Campus-wide policies for use of UCSC computing facilities SOE computing policies Penalties for violation Requesting Support IT request BSOE helpdesk ITS support center

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4 AMS Computing Resources http://www.soe.ucsc.edu/classes/ams200/Fall09/AMS_cluster_grape.pdf It is housed in BE 250. IP address:grape.cse.ucsc.edu It has 48 core processors. Each processor is 2.33GHz with 2GB RAM. It has Fortran compiler, C compiler and MPI (Message Passing Interface). It has Matlab, IDL (Interactive Data Language), LApack … AMS Cluster: grape

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5 More Computing Resources http://www.ams.ucsc.edu/resources/computing SOE Webmail UCSC Webmail Setting up a vacation message Setting up email forwarding Poster printing

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6 Computing Software Matlab: a programming language for matrix-vector operations, with good graphics and visualization capabilities Maple: a programming language for symbolic computation Mathematica: not licensed by SOE

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7 Examples of Matlab http://www.soe.ucsc.edu/~hongwang/Codes/Plot_1D_2D/ Plotting curves and surfaces http://www.soe.ucsc.edu/~hongwang/Codes/Read_data/ Run “plot_fx.m” to see how to plot curves. Run “plot_fxy.m” to see how to plot a surface. Run “plot_Cities_pop.m” to see how to read in data, plot populations of 6 cities vs time, and use legend to label curves. http://www.mathworks.com/access/helpdesk/ Online Matlab manuals

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8 Examples of Matlab (continued) Visualization of motion GUI (Graphical User Interface) http://www.soe.ucsc.edu/~hongwang/Codes/Two_body/ http://www.soe.ucsc.edu/~hongwang/AMS27/Lab/illustration_4.html http://www.soe.ucsc.edu/~hongwang/Codes/Image_compression/ First run “calc_2body.m” to generate the numerical solution. Then run “visualize_1.m” to visualize the motion. Run “ODE_4.m” to use the GUI. Run “demo_color.m” and / or run “demo_grayscale.m” to see the effect of image compression.

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9 More Programming Languages http://www.soe.ucsc.edu/~draper/ HTML (Hyper Text Markup Language): -- learn it by reading other webpages R: -- Professor Kottas will talk about it Example: Professor Draper’s webpage IDL (Interactive Data Language): -- you will learn it later from Professors Brummell and Garaud if …

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10 Electronic Resources http://library.ucsc.edu/ Online journals Off-campus access Book catalogs (cruzcat & Melvyl) Articles & databases Library: SOE Courses: UCSC Searchable Schedule of Classes: http://www.soe.ucsc.edu/courses/ https://pisa.ucsc.edu/prd/sr0060/ http://maps.ucsc.edu/cdcommon.html Online Campus Maps:

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Application Layer. This graphic is taken from The Abdus Salam International Centre for Theoretical Physics.

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