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- In order to run this larger version of the program
on the SP I have commented out rasterization and
HDF function calls, because HDF libraries are not yet
installed on the SP (the will be).
- I have run that program interactively on 8 processors
first: it took 367 seconds.
- I have then recompiled the program with
run it on a single processor sequentially. This time
the computation took 1006 seconds.
- The speed up is 2.75. It is a gain, although not 8 times.
The problem is clearly still a little too small for an effective
use of a multicomputer, but it's almost there. Increasing
the size of the array to
would further improve
the effectiveness of parallelisation.