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# Copyright (C) 2000 by Peter J. Gawthrop
###############################################################
## Version control history
###############################################################
## $Id$
## $Log$
## Revision 1.11.2.4 2002/06/05 23:34:33 geraint
## Eliminated argument list too long warnings.
## Now get a Segmentation Fault with very long equations!
##
## Revision 1.11.2.3 2002/06/05 18:23:38 geraint
## Cosmetic change.
##
## Revision 1.11.2.2 2002/06/05 17:57:47 geraint
## Main part of optimisation routine moved to separate file.
##
## Revision 1.11.2.1 2002/06/05 11:14:51 geraint
## ae.r now generated using def2write_r like cse?.r
## fix_c.r called at ese2rdae stage so that pow gets fixed in ae.r.
##
## These changes produce the desired result (optimised algebraic equations) but
## have highlighted a problem; when optimisation fails, Reduce does not write
## a result. For complicated systems, this can lead to missing assignments in
## the resultant code.
##
## Revision 1.11 2002/05/17 09:14:58 geraint
## Optimises each line in a separate session. Allows larger models to be built.
##
## Revision 1.10 2002/04/28 18:41:27 geraint
## Fixed [ 549658 ] awk should be gawk.
## Replaced calls to awk with call to gawk.
##
## Revision 1.9 2001/07/27 23:29:10 geraint
## Optimises only when requested (-opt).
##
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Nu=`mtt_getsize $sys u` # Inputs
Ny=`mtt_getsize $sys y` # Outputs
Nyz=`mtt_getsize $sys yz` # Zero outputs
#Npar=`wc -l $sys\_sympar.txt | gawk '{print $1}'`
# Set up representation-specific stuff
case $rep in
ae)
matrices='Yz'
ns="$Nyz"
ms="1"
;;
cse)
matrices='EdX E'
ns="$Nx $Nx"
ms="1 $Nx"
;;
csex)
matrices='EdX'
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}'
}
mtt_optimise ()
{
sys="$1"
lhs="$2"
rhs="$3"
lhs=`echo $lhs | sed 's/MTTEdX/MTTdX/'`
crr="${sys}_cr.r"
tmp="mtt_optimise.tmp"
tmp=mtt_optimise.tmp
tmp2="mtt_optimise2.tmp"
tmp3="mtt_optimise3.tmp"
{
cat <<EOF
off echo$
load scope$
on double$
on noconvert$
on rounded$
off int$
off nat$
out "$tmp2"$
EOF
} > $tmp
echo "optimize" >> $tmp
grep -i -e "^$lhs" $dae |\
sed -e 's/;/\ INAME\ mtt_tmp/g' |\
sed -e 's/:=/:=/g' >> $tmp
{
cat <<EOF
shut "$tmp2"$
EOF
} >> $tmp
${SYMBOLIC:-reduce} < $tmp >> def2write_r1.log 2>> def2write_r2.log
cat $tmp2 | gawk -v RS=';' '($2 == ":=") {print $0}' > $tmp3
cat $tmp3 | mtt_fix_integers
rm -f $tmp $tmp2 $tmp3
return
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m=`first "$ms"`; ms=`rest "$ms"`
is=`n2m 1 $n`;
js=`n2m 1 $m`;
for i in $is; do
for j in $js; do
if [ ${opt:-""} = "-optimise" ]; then
name=`echo MTT$matrix'('$i','$j')'`
mtt_optimise $1 "$comma$name" "$name"
mtt_optimise $1 "$comma$name"
comma=''
else
echo 'write'
name=`echo MTT$matrix'('$i','$j')'`
echo ' '$comma$name ':=' $name '$'
fi >> $1_$2_write.r
done
done
done
echo ';END;' >>$1_$2_write.r
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