direkt zum Inhalt springen

direkt zum Hauptnavigationsmenü

Sie sind hier

TU Berlin

Page Content

Publications of KBS

Small, Scalable, and Efficient Microkernels for Highly Parallel Computers are possible: Cosy as an example
Citation key BH97b
Author Roger Butenuth and Hans-Ulrich Heiss
Title of Book International Conference on Advances in Parallel and Distributed Computing, Shanghai, China
Year 1997
Month mar
Abstract Although highly parallel distributed memory computers exist for several years, the operating systems used on them did not fit the requirements very well. Most of them are designed for sequential, shared memory parallel, or distributed computers. Examples are Unix on the IBM SP/2 [17] and Mach on the Intel Paragon. This results in poor scalability caused by inefficient communication primitives designed for wide area networks or by waste of resources due to huge kernels (e.g. 8 MB per node are reported for Mach on the Paragon, [16]), which is harmful especially in highly parallel systems with hundreds or thousands of nodes. With Cosy (Concurrent Operating System) we have shown that a well structured and carefully designed system can be small (70 Kb for the kernel, 372 total memory usage per node), efficient (33ms for communication), and scalable (applications run efficient on up to 1024 processors).
Link to publication Download Bibtex entry

Zusatzinformationen / Extras

Quick Access:

Schnellnavigation zur Seite über Nummerneingabe