P-GRADE Portal hands-on Application Developer Training Day IV.

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P-GRADE Portal hands-onApplication Developer
Training Day IV.

• Miklos Kozlovszky
• Ankara, 25. October, 2007.

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TR-GRID Portal portal.grid.org.tr8080/gridspher
e/gridsphere

• Connected to the TR-GRID and SEE-GRID
  infrastructures
• To provide environment for trainers, students and
  national grid application developers
• TR-GRID/SGDEMO certificate required
• Trainers can ask SGDEMO VO certificates for
  training purposes
• gLite 3.x / LCG2 middleware
• Fully functional P-GRADE Portal installation
• Users can get an account on the TR-GRID P-GRADE
  Portal (Operated by ULAKBIM and METU)

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Situation today

• Tutors obtained certificates from SEE-GRID Demo
  CA
• Tutors registered these certificates at SGDEMO VO
• Tutors copied these certificates onto the
  egitim-ui.ulakbim.gov.tr UI machine
• Tutors uploaded proxies from these certificates
  into myproxy.ulakbim.gov.tr MyProxy server
• Tutorial starts at this point...

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Infrastructure
Client machines - Ankara
TR-GRID P-GRADE Portal(TUBITAK, Ankara) P-GRADE
v2.5 (without GEMLCA)
ULAKBIMMyProxy server myproxy.ulakbim.gov.tr
Proxy download
Taipeiproxy 1
Taipeiproxy 1
Taipeiproxy 1
User cert29
User cert30
GSI
Grid services
SEE-GRID / TR-GRID 30 sites
from 11 countries / 8 institutes
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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
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Exercise 2 Develop a matrix multiplication
workflow Matrix operations job
INPUT1
INPUT2

• C code
• Compiled on EGEE grid
• Reads matrixes from two files called INPUT1 and
  INPUT2
• Writes result matrix into file called OUTPUT
• Controllable by command line parameters
• Local execution ./multiply M V

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
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Exercise 3 Define a complex workflow using the
MatrixOperations job

• AB, 0T AB, 1

A
B
A B
A B , 0
A B , 1
A B , 0 T
( A B , 0 T ) ( A B , 1 )
B
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Tips and tricks

• Exclude an erroneous site from the brokering
  process
• Open the JDL editor of the job
• Write other.GlueCEInfoHostname ! hostname
  into the Ranks requirements window
• Automatic job resubmission
• Open the JDL editor of the job
• Set Retry count to a higher value