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Introduction to P-GRADE Portal hands-on

Introduction to P-GRADE Portal hands-on. Miklos Kozlovszky MTA SZTAKI m.kozlovszky@sztaki.hu www.portal.p-grade.hu pgportal@lpds.sztaki.h u.

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Introduction to P-GRADE Portal hands-on

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  1. Introduction to P-GRADE Portal hands-on Miklos Kozlovszky MTA SZTAKI m.kozlovszky@sztaki.hu www.portal.p-grade.hu pgportal@lpds.sztaki.hu

  2. Step 1. Download the tutorial sheets from the webhttp://indico.in2p3.fr/conferenceDisplay.py?confId=1265Step 2. Open the tutorial sheets on your desktop

  3. Infrastructure Client machines MyProxy name: PARISxx MyProxy password: portal.p-grade.hu/multi-grid P-GRADE Portal(SZTAKI, Budapest)based on v2.7 GILDA MyProxy server Proxy Proxy download gLite GILDA Grid services

  4. Tutorial 1, Exercise 1Import and execute a pre-defined application Traffic simulation Generates the road network map of Manchester Put traffic lights and cars on the map. Simulate road traffic. Compares and visualizes the density of cars

  5. Tutorial 1, Exercise 2 Create a matrix multiplication workflow(one job workflow) Job executable: • C code, compiled on GILDA UI • Expects command lineparameters: M V • Knows nothing about the grid Job input/output files: • Program reads matrixes from two files called INPUT1 and INPUT2 • Program writes result matrix into file called OUTPUT Local execution on a PC:./multiply M V Task: Execute the program on EGEE, transfer input and output files in Sandboxes from the client INPUT1 INPUT2 3 32 1 31 1 13 3 3 3 35 2 76 7 93 8 2 binary 3 325 35 29 14 17 18 42 51 54 OUTPUT

  6. Login to Portal: Portal accounts:user01– user40use your numberPortal passwords: Proxy download information (login to GILDA): Hostname: grid001.ct.infn.ituse your number Port: 7512 Account: user01 Password: No need to wait for jobs to finish – proceed to next exercise

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