%T An environment for transputer CPU load measurements
%A Giuseppe de Pietro, Umberto Villano
%E Hussein S. M. Zedan
%B OUG\-13: Real\-Time Systems with Transputers
%X In a multiprocessor system an uneven load balancing can
usually dramatically reduce the performance of the parallel
program running on it Hence it is of paramount importance to
be able to estimate the CPU and communication loads of every
task before the program is actually executed so that the
optimal application partitioning can be found. In this paper
the problem of CPU load measurement is tackled, and a
measurement environment is illustrated in which the
processes to be allocated to the processors in the network
are run in quasi\-concurrence on a single Transputer. A
technique based on active process list manipulation makes it
possible to perform a fairly accurate measurement of the CPU
activity of the parallel processes in the application using
the Transputer internal tinier as a reference clock.
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