Grid Computing Assignment 1 Discrete Fourier Transform ...

Content of the file ‘param2.dat’
4 (No of Tasks)
2 (current task no)
1024 (total samples)
Content of the file ‘param3.dat’
4 (No of Tasks)
3 (current task no)
1024 (total samples)
Content of the file ‘metafile.txt’
4 (No of Tasks)
2 (No of arguments to each task)
param0.dat data.dat (arguments to task 0 )
param1.dat data.dat (arguments to task 1 )
param2.dat data.dat (arguments to task 2 )
param3.dat data.dat (arguments to task 3 )
1. Run ‘purezonalserver’ on one of the nodes.
2. Next set up the grid by running ‘purefaultgridnode’
on the four nodes which want to participate in the grid.
3. Submit the grid task by running ‘user’ .
The parameters for the program ‘user’ :
• Meta file name : metafile.txt
• Source file for tasks : dft_task.c
• No of splits : 4
• Output file : result.dat
• Source file for aggregation : dft_agg.c
4. The result will be available in the file ‘result.dat’ after the computation.
Vishwa starts the grid computation by running the ‘dft_task’ at each node with the files
‘paramx.dat’ (x corresponds to task number) and ‘data.dat’ as arguments, which are provided in the file
‘metafile.txt’. Each subtask reads ‘paramx.dat’ file to get number of tasks, current task no and number
of samples, then computes a portion of the equation using these values and writes the result into a file.
Once all the subtasks finish execution, ‘dft_agg’ is executed which will aggregate the result into the
‘result.dat’file.
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