Virtual Tasks for the PACLIB Kernel (1994)
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| Venue: | Parallel Processing: CONPAR 94 --- VAPP VI International Conference on Parallel and Vector Processing |
| Citations: | 6 - 5 self |
BibTeX
@INPROCEEDINGS{Schreiner94virtualtasks,
author = {Wolfgang Schreiner},
title = {Virtual Tasks for the PACLIB Kernel},
booktitle = {Parallel Processing: CONPAR 94 --- VAPP VI International Conference on Parallel and Vector Processing},
year = {1994},
pages = {533--544},
publisher = {Springer}
}
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Abstract
. We have extended the task management scheme for the parallel computer algebra package PACLIB. This extension supports "virtual tasks" (tasks that are not yet executable) which are created more efficiently than "real tasks" (tasks that are immediately scheduled for execution). Virtual tasks become real only when the system is idling or existing real tasks can be recycled. Consequently, the overhead for task creation and synchronization but also the memory requirements of a parallel program may be reduced. We analyze the system theoretically and experimentally and compare it with another virtual task package. 1 Introduction The purpose of this paper is twofold: first it reports the extension of the task management scheme for a parallel programming package developed at our institute. Second it carefully investigates the semantic and performance consequences of this modification and compares them with the results reported for a system that was developed elsewhere with similar objectives...
