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Performances Analysis
The PALM coupler can be easily instructed to track the execution and
compute the global performances of the parallel execution. The CPU and
elapsed time statistics for the user defined units, the algebra
toolbox predefined units and the data exchanges prove to be very
useful for optimisation in the application set-up.
PALM provides also some debugging
utilities: it allows the post-mortem reply of the algorithm progress in
the graphical interface in order to detect bottle-necks, infinite loops
or the exact point of termination and it allows the "on the fly" check
of the exchanged data.
Let's notice that the performance analysis helps the programmer in the code optimization. Very often the optimization is performed by a simple reorganization of the coupling parallel sections in the graphical interface.
