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Article View: comp.sys.transputer
Article #1884

Re: iserver required although no I/O is done ?

#1884
From: Nigel Holder
Date: Thu, 21 Jan 1993 18:20
45 lines
2292 bytes
In article <1jjvtuINNgdb@nz12.rz.uni-karlsruhe.de> stud2@aifbmozart.aifb.uni-karlsruhe.de (Norbert Kuck) writes:
>Hi out there !
>
>I have a problem concerning the INMOS ANSI C toolset. I am using 
>a 4-transputer configuration, where all transputers are connected to
>each other. Additionally, each transputer uses his link 0 to communicate
>with his personal iserver. So I have to start 4 iservers on my host
>and can watch all kinds of trace output from the net. Very nice.
>
>The problem is: Now that my program works better, I usually switch
>the tracing off, so that only the root transputer does any host-I/O.
>But I still have to start 4 iservers, otherwise the system hangs.
>
>To me it looks as if there is some mysterious communication between
>iserver and transputer, even if I don't call any I/O-function. So if
>there is no iserver there, the transputer will wait forever for the
>iserver to respond. 
>
>What can I do ? I would like to decide at configuration time if I
>want a host connection or not. I'd very much appreciate if anybody
>out there could give me a hint about that.
>
>Thanks in advance for your time - 
>
>Norbert Kuck
>stud2@aifb.uni-karlsruhe.de

The full C run-time library communicates with the iserver in order
to determine the command line arguments (argv).

The reduced mode libraries do not.

Are you configuring each transputer individually (each with a full run-time
library) or as a network of 4 transputers ?


-Nigel

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Nigel Holder, Software Group, INMOS Ltd		Tel +44 454 616616
1000 Aztec West					Fax +44 454 617910
Almondsbury					UK: nigel@inmos.co.uk
Bristol BS12 4SQ, UK.				US: nigel@inmos.com

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Message-ID: <1993Jan21.182001.26251@titan.inmos.co.uk>
Path: arc1-ca.pugleaf.net!sparky!uunet!inmos!titan.inmos.co.uk!news
References: <1jjvtuINNgdb@nz12.rz.uni-karlsruhe.de>

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Newsgroups: comp.sys.transputer
Path: arc1-ca.pugleaf.net!sparky!uunet!inmos!titan.inmos.co.uk!news
From: nigel@dodo.inmos.co.uk (Nigel Holder)
Subject: Re: iserver required although no I/O is done ?
Message-ID: <1993Jan21.182001.26251@titan.inmos.co.uk>
Keywords: QUESTION iserver C-toolset
Sender: news@titan.inmos.co.uk
Organization: INMOS Limited, Bristol, UK
References: <1jjvtuINNgdb@nz12.rz.uni-karlsruhe.de>
Date: Thu, 21 Jan 1993 18:20:01 GMT
Lines: 45