Deploying MadCity as OGSI Grid Service

1
Deploying MadCity as OGSI Grid Service

• Work schedule
• Create small scale test Grid services
• Use JNI to deploy C code as a Grid service
• Deploy a serial version of MadCity as a Grid
  service
• Deploy parallel version of MadCity as a Grid
  service

2
Experience with JNI

• Create a library from the C program and invoke
  the functions of this library from Java
• The C library should be thread safe, no global
  variables
• Load the library dynamically from the constructor
  of the class that is calling the lib
• Copy the lib to JAVA_HOME/jre/lib/i386/

3
Serial MadCity as Grid Service

• Features of the program
• Takes one input parameter (number of cars)
• Creates a trace-file tested with visualiser
• Tested with Java client
• Could be run from any location

4
Serial MadCity as Grid Service

• Problems
• Solution very instable
• Segmentation error only under GT3
• Destroys container
• Catch exception

5
Parallel MadCity as Grid Service
A possible solution framework