Computing (FOLDOC) dictionary
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parallel Sharing a single
CPU between multiple tasks (or
"threads") in a way designed to minimise the time required to
switch threads. This is accomplished by sharing as much as
possible of the program execution environment between the
different threads so that very little state needs to be saved
and restored when changing thread.
share more of their environment with each other than do tasks
under multitasking. Threads may be distinguished only by the
thread from another, in contrast to multitasking.
Multithreading can thus be used for very fine-grain
multitasking, at the level of a few instructions, and so can
hide
latency by keeping the processor busy after one thread
issues a long-latency instruction on which subsequent
instructions in that thread depend.
full process.
TL0 is an example of a threaded machine language.
form of multithreading.
(1997-12-23)