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From: COS99284@UFRJ.BITNET (Luiz Felipe Perrone)
Newsgroups: comp.sys.transputer
Subject: Debugging occam programs in a hypercube
Message-ID: <9103061706.AA10234@theory.TN.CORNELL.EDU>
Date: 6 Mar 91 17:35:05 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
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X-Unparsable-Date: Wed, 06 Mar 91 13:40:43 BRA


Here is have a problem for experienced transputer hackers out there:

  We work with an 8 nodes (T800) hypercube and, as occam programmers,
we use TDS2. Whenever trying to debug a program running on this machine
we have great pains because we don't know how to generate a core dump
for the transputer network. Although we have restlessly searched the
TDS2 Manual we never found out how to do this. We suspect it is indeed
possible to do it because in Chapter 9 of this manual the actual
procedure is described. Once in the monitor screen, one only has to
select "N" to write a network dump.

  However, we can never get to the monitor screen when the transputer
error flag is set in any processor other than the root transputer.
And the reason for this seems to be quite strange: the error flag can't
be reset and TDS2 can't be loaded again.The only way to load TDS2
after the error is to turn off the machine.

  If you think you can help us please send us a message. We will be
forever indebted to you. (I'm not sure that means much, though...)

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Luiz Felipe Perrone
MSc student - COPPE - Dept. of Systems Engineering and Computer Science
Federal University of Rio de Janeiro - Brazil
E-mail: COS99284@UFRJ (BITNET)
Mailiing address: Rua Senador Vergueiro 157/305
                  Flamengo - Rio de Janeiro, RJ - Brazil
                  CEP 22230

Phone number: (55)-(21)-5519063
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