Newsgroups: comp.robotics
Path: brunix!uunet!europa.asd.contel.com!darwin.sura.net!zaphod.mps.ohio-state.edu!moe.ksu.ksu.edu!unlinfo.unl.edu!cse!krings
From: krings@cse.unl.edu (Axel Krings)
Subject: Wanted:workload graphs 4 real_world applications
Message-ID: <1992Sep22.015532.7402@unlinfo.unl.edu>
Sender: news@unlinfo.unl.edu
Nntp-Posting-Host: cse.unl.edu
Organization: University of Nebraska - Lincoln
Date: Tue, 22 Sep 1992 01:55:32 GMT
Lines: 31


Hi Everybody,

we are looking for "real world" task systems for simulations on schedulers 
for real-time systems with hard deadlines. 

Specifically, we need only the precedence graph (computation graph) of
the workloads and not actual programs. The tasks or procedures represented
by the vertices should indicate timing requirements, i.e. their maximum 
duration, needed to determine schedulability under the real-time constraints.

i.e. In a paper by P.Shaffer (IEEE Control Systems June 1990)
"A Multiprocessor Implementation of Real-Time Control for a Turbojet Engine",
the computation graph for the control program of a supersonic turbofan
with afterburner is given. This is a 64 vertex graph, and for each the 64 
procedures the max duration is indicated.

Does anyone have graphs of real world applications?

I am hoping that people having source-code of industial robot-control 
programs are willing to share some of their information. 
Again, in terms of software protection and security clearence, we don't
need the code, just the workload-graph.

Thanks for any attempts ...
    			    - Axel
 
--
Axel Krings                            | email: krings@cse.unl.edu
Dept. Comp.Science & Engineering       | phone: 402-472-2402
University of Nebraska - Lincoln (USA) | fax  : 402-472-7767
