Paper Details

%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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