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|
#------------------------------------------------------
# Tcl startup script for qrouter
#------------------------------------------------------
namespace path {::tcl::mathop ::tcl::mathfunc}
set tcllibdir [array get env "QROUTER_LIB_DIR"]
if {$tcllibdir == {}} {
set QROUTER_LIB_DIR LIBDIR
} else {
set QROUTER_LIB_DIR [lindex $tcllibdir 1]
}
unset tcllibdir
if {[string compare $tcl_platform(platform) "windows"] == 0} {
set libext .dll
} else {
set libext .so
}
load ${QROUTER_LIB_DIR}/qrouter$libext
package require Qrouter
proc pushnamespace { name } {
set y [namespace eval ${name} info commands ::${name}::*]
set z [info commands]
foreach v $y {
regsub -all {\*} $v {\\*} i
set x [namespace tail $i]
if {[lsearch $z $x] < 0} {
namespace import $i
} else {
puts "Warning: ${name} command '$x' use fully-qualified name '$v'"
}
}
}
proc popnamespace { name } {
set z [info commands]
set l [expr [string length ${name}] + 5]
while {[set v [lsearch $z ${name}_tcl_*]] >= 0} {
set y [lindex $z $v]
set w [string range $y $l end]
interp alias {} ::$w {}
rename ::$y ::$w
puts "Info: replacing ::$w with ::$y"
}
namespace forget ::${name}::*
}
set auto_noexec 1 ;# don't EVER call UNIX commands w/o "shell" in front
#---------------------------------------------------------
# Internally-defined procedures (equivalent to commands)
#---------------------------------------------------------
#---------------------------------------------------------
# Write the result of the "congested" command out to a
# file, with "<instance_name> <congestion_value>" per
# line of output, one for each instance, ordered.
#---------------------------------------------------------
proc qrouter::write_congested {filename} {
puts stdout "Writing congestion information into $filename"
if {![catch {open $filename w} fcon]} {
puts $fcon "Qrouter congestion summary"
puts $fcon "--------------------------"
set flist [failing summary]
set failures [lindex $flist 0]
set numnets [lindex $flist 1]
puts $fcon "Failures: $failures $numnets"
puts $fcon "--------------------------"
set clist [congested]
foreach cpair $clist {
set inst [lindex $cpair 0]
set value [lindex $cpair 1]
puts $fcon "$inst $value"
}
close $fcon
} else {
puts stderr "Error: can't open file $filename for output"
}
}
#---------------------------------------------------------
# Standard sequence of events (subject to change):
# Upon first success, write the DEF file output and quit.
# If "stage2 mask none" leaves failing routes, then write
# the routes done so far to the DEF file output and remain
# in the interpreter. If "stage2 mask none" leaves fewer
# than five routes (a very ad hoc number), give it a
# second try.
#---------------------------------------------------------
proc qrouter::standard_route {} {
if {![stage1]} {write_def; quit}
if {![stage2]} {write_def; quit}
set result [stage2 mask none]
if {$result < 5} {set result [stage2 mask none]}
write_def
if {$result == 0} {quit}
}
#------------------------------------------------------
# First alternative routing script. Do the quickest
# (default) stage1 and stage2 routes. If stage2
# leaves route failures, then write out the list of
# instances with congestion information, so that this
# information can be fed back to the placement tool
# in hopes of producing a routable layout on the next
# iteration. Rather than returning to the interpreter
# on route failure, it always quits.
#------------------------------------------------------
proc qrouter::congestion_route {filename} {
if {![stage1]} {write_def; quit}
set result [stage2 mask none]
if {$result < 5} {set result [stage2 mask none]}
if {$result != 0} {
qrouter::write_congested $filename
}
write_def
quit
}
#------------------------------------------------------
pushnamespace qrouter
#------------------------------------------------------
# GUI setup
#------------------------------------------------------
set appname .qrouter
set appframe ${appname}.dframe
set drawwindow ${appframe}.drawing
if {![catch {toplevel ${appname}}]} {
frame ${appframe}
pack ${appframe} -side left -expand true -fill both
simple ${drawwindow} -width 1000 -height 800
pack ${drawwindow} -expand true -fill both
bind ${appframe} <Expose> redraw
bind ${appframe} <Visibility> redraw
bind ${appframe} <Configure> redraw
wm withdraw .
}
proc qrouter::lowerconsole {} {
consoledown
}
puts stdout "Qrouter detail maze router version VERSION.REVISION.T"
set autoquit 0
set autoroute 0
set argafter {start}
for {set i 0} {$i < $argc} {incr i 1} {
set x [lindex $argv $i]
switch $x {
"-i" -
"-h" {set autoquit 1}
"-c" {set autoroute 1}
}
lappend argafter $x
}
eval $argafter
# NOTE: Having a file "route.cfg" in the current directory is
# equivalent to specifying "-c <file>", so autoroute should be set
if {$autoroute == 0} {
if [file exists route.cfg] {
set autoroute 1
}
}
if {$autoquit} quit
if {$autoroute} {
qrouter::standard_route
}
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