Shell Programming and Scripting

#Proc to calculate the route utilization of a  vertical track
proc util_cal_v { llx lly urx ury metal_name } {
  set nt_sp_len 0
  set box1 [split [get_attribute [ get_die_area ] bbox] "{ }" ]
  #set h_trk_len [lindex $box1 5]
  set v_trk_len [lindex $box1 6]
  set ab [sizeof_collection [get_net_shapes -quiet -intersect "$llx $lly $urx $ury" -filter "layer_name==$metal_name"]]
  if { $ab != 0 } {
    set nt_sp [get_net_shapes -quiet -intersect "$llx $lly $urx $ury" -filter "layer_name==$metal_name"]
    set nt_sp_lst [collection_to_list -name_only -no_braces $nt_sp]
    foreach nt $nt_sp_lst {
      set h_v [string index $nt 0]
      if {$h_v == "V"} {
        set nt_sp_len [expr $nt_sp_len + [get_attribute [get_net_shapes $nt] length]]
      } else {
        set nt_sp_len [expr $nt_sp_len + [get_attribute [get_net_shapes $nt] width]]
      }
    }
    set ut_v [expr $nt_sp_len / $v_trk_len]
  } else {
    set ut_v 0.00
  }
  return $ut_v
}
 
###############################################################3
#Proc to calculate the route utilization of a  horizontal track
proc util_cal_h { llx lly urx ury metal_name } {
  set nt_sp_len 0
  set box1 [split [get_attribute [ get_die_area ] bbox] "{ }" ]
  set h_trk_len [lindex $box1 5]
  #set v_trk_len [lindex $box1 6]
  set ab [sizeof_collection [get_net_shapes -quiet -intersect "$llx $lly $urx $ury" -filter "layer_name==$metal_name"]]
  if { $ab != 0 } {
    set nt_sp [get_net_shapes -quiet -intersect "$llx $lly $urx $ury" -filter "layer_name==$metal_name"]
    set nt_sp_lst [collection_to_list -name_only -no_braces $nt_sp]
    foreach nt $nt_sp_lst {
      set h_v [string index $nt 0]
      if {$h_v == "H"} {
        set nt_sp_len [expr $nt_sp_len + [get_attribute [get_net_shapes $nt] length]]
      } else {
        set nt_sp_len [expr $nt_sp_len + [get_attribute [get_net_shapes $nt] width]]
      }
    }
    set ut_h [expr $nt_sp_len / $h_trk_len]
  } else {
    set ut_h 0.00
  }
return $ut_h
}
 
######################################################################################
#Proc to calculate the start location of each track
proc track_route_utilization_in_design { metal_name } {
  echo  "START TIME [date]"
  set fp [ open "track_route_util.rpt" "w" ]
  set pitch [get_attribute [get_layers $metal_name] pitch]
  set box [split [get_attribute [ get_die_area ] bbox] "{ }" ]
  set wdth [lindex $box 5]
  set ht [lindex $box 6]
  if {[get_attribute [get_layers $metal_name] preferred_direction] == "vertical"} {
    set trk_v_off 0.0
    set tck [get_tracks -filter "layer==$metal_name && direction==vertical"]
    set trk_v_off1 [lindex [get_attribute -class track $tck start] 0]
    foreach p $trk_v_off1 {
      if {$p != 0} {
        set trk_v_off $p 
      }
    }
    set ver_trk_ref 0
    set cnt_v 0
    set design_util_v 0
    while { $ver_trk_ref < $wdth } {
      if { $cnt_v == 0 } {
        set ver_trk_ref [expr $ver_trk_ref + $trk_v_off]
        incr cnt_v
        #set ab [sizeof_collection [get_net_shapes -quiet -intersect "$ver_trk_ref 0 $ver_trk_ref $ht" -filter "layer_name==$metal_name"]]
        set v_trk_util [ util_cal_v $ver_trk_ref 0 $ver_trk_ref $ht $metal_name ]
        set design_util_v [ expr $design_util_v + $v_trk_util ]
        puts $fp "The route utilization of the vertical track $cnt_v starting at ($ver_trk_ref , 0) is [ expr $v_trk_util * 100 ] percent."
      } else {
        set ver_trk_ref [expr $ver_trk_ref + $pitch]
        incr cnt_v
        set v_trk_util [ util_cal_v $ver_trk_ref 0 $ver_trk_ref $ht $metal_name ]
        set design_util_v [ expr $design_util_v + $v_trk_util ]
        puts $fp "The route utilization of vertical track $cnt_v starting at ($ver_trk_ref , 0) is [ expr $v_trk_util * 100 ] percent."
      }
    }
    puts "Total number of vertical tracks is $cnt_v"
    puts "Total route utilization of all vertical metal $metal_name tracks in the design is [ expr [ expr $design_util_v / $cnt_v ] * 100 ] percent"
    puts "To see the route utilization of each vertical track of metal $metal_name in the design, open the file track_route_util.rpt "
  } else {
    set tck [get_tracks -filter "layer==$metal_name && direction==horizontal"]
    set trk_h_off 0.0
    set trk_h_off1 [lindex [get_attribute -class track $tck start] 1]
    foreach p $trk_h_off1 {
      if {$p != 0} {
        set trk_h_off $p 
      }
    }
    set hor_trk_ref 0
    set cnt_h 0
    set design_util_h 0
    while {$hor_trk_ref < $ht} {
      if {$cnt_h == 0} {
        set hor_trk_ref [expr $hor_trk_ref + $trk_h_off]
        incr cnt_h
        #set ab [sizeof_collection [get_net_shapes -quiet -intersect "$ver_trk_ref 0 $ver_trk_ref $ht" -filter "layer_name==$metal_name"]]
        set h_trk_util [ util_cal_h  0 $hor_trk_ref $wdth $hor_trk_ref $metal_name ]
        set design_util_h [ expr $design_util_h + $h_trk_util ]
        puts $fp "The route utilization of horizontal track $cnt_h starting at (0 ,$hor_trk_ref) is [ expr $h_trk_util * 100 ] percent."
      } else {
        set hor_trk_ref [expr $hor_trk_ref + $pitch]
        incr cnt_h
        set h_trk_util [ util_cal_h 0 $hor_trk_ref $wdth $hor_trk_ref $metal_name  ]
        set design_util_h [ expr $design_util_h + $h_trk_util ]
        puts $fp "The route utilization of horizontal track $cnt_h starting at (0 ,$hor_trk_ref) is [ expr $h_trk_util * 100 ] percent."
      }
    }
puts "Total number of horizontal tracks is $cnt_h"
puts "Total route utilization of all horizontal metal $metal_name tracks in the design is [ expr [ expr $design_util_h / $cnt_h ] * 100 ] percent"
puts "To see the route utilization of each horizontal track of metal $metal_name in the design, open the file track_route_util.rpt "
}
close $fp
echo "END TIME [date]" 
}
define_proc_attributes track_route_utilization_in_design -info "Script to report the route utilization of each metal track."