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- Newsgroups: comp.realtime
- Path: sparky!uunet!munnari.oz.au!metro!seagoon.newcastle.edu.au!wombat.newcastle.edu.au!eepjm
- From: eepjm@wombat.newcastle.edu.au (Peter Moylan)
- Subject: Re: novel idea?
- Message-ID: <1993Jan11.171954.1@wombat.newcastle.edu.au>
- Lines: 25
- Sender: news@seagoon.newcastle.edu.au
- Organization: University of Newcastle, AUSTRALIA
- References: <erempel.726720401@sol.UVic.CA>
- Date: Mon, 11 Jan 1993 06:19:54 GMT
-
- In article <erempel.726720401@sol.UVic.CA>, erempel@sol.UVic.CA (Evan Rempel) writes:
- >
- > I am looking for an OS (real time obviously) that has the
- > ability to swap a task from one cpu to another. This is merely
- > a multiprocessing system. The catch is that I want to be
- > able to mix cpu's. Say a 68040 as the general, but then a i860
- > running on the side for complex graphics. If the i860 becomes
- > bogged down (I don't know what I would be doing to bog down the
- > i860, but lets say I do) and the 68040 is sitting idle (or close
- > to it) can one of the tasks that is running on the i860 be switched
- > over to the 68040 to run there.
- >
- > I know that the single task on the 040 would run slower than on the
- > i860, but if the i860 was bogged down, the net result would
- > be a system speedup.
-
- You must be joking. The machine languages of these two processors
- are totally different. Would you plan to run an 860 simulator on
- the 68040, or recompile the source code each time you switched
- processors? Either way, the overheads are mind-boggling.
-
- "Run slower" is a gross understatement.
-
- --
- Peter Moylan eepjm@wombat.newcastle.edu.au
-