Newsgroups: comp.sys.transputer
From: "Rob Chinneck" <robchin@liv.ac.uk>
Subject: Inquest on T805s, problems with REAL32s.
Organization: The University of Liverpool
Date: Fri, 10 Jan 1997 16:28:06 GMT
Message-ID: <01bbff13$016246e0$0facfd8a@sal.robots.eeng.liv.ac.uk>

I am using INQUEST to try and debug my code. My code consists of 5-10
parallel processes put onto a physical TPU network of 7 processors.

I have been through the examples that come with the INQUEST package and am
familiar with them now.

My code has a number of processes using REAL32 and REAL64 variables. I try
to debug these interactively but when I step to lines in PROCedures which
look something like:

#1 - array[i][j] := array[i][j] / 16384.0 (REAL32)

#2 - totinc[i]:=0.0 (REAL64)

the Step buttons go grey and I eventually get a window with " Link not
responding!! "

If I wait some more it then tells me that the error flag has been set or
that the transputer network is not responding.

These problems only happen when the code is being debugged on T805s. When I
run the code on T425s these problems do not happen. I have also tried
running the code on T805s using IRUN but with th ecode configured without
the /ga option - so no debugging kernel is loaded onto the TPUs. 

I would appreciate some help on this, thanks

Rob Chinneck.