route_icc.tcl

synopsys icc 使用参考脚本

## ICC RM Version: B-2008.09        


########################
## route_icc: Routing ##
########################



source -echo icc_setup.tcl

open_mw_lib $MW_DESIGN_LIBRARY
redirect /dev/null "remove_mw_cel -version_kept 0 ${ICC_ROUTE_CEL}" 
copy_mw_cel -from $ICC_CLOCK_OPT_ROUTE_CEL -to $ICC_ROUTE_CEL
open_mw_cel $ICC_ROUTE_CEL

link



source -echo common_optimization_settings_icc.tcl
source -echo common_placement_settings_icc.tcl
source -echo common_post_cts_timing_settings.tcl



########################################
#    LOAD THE ROUTE AND SI SETTINGS    #
########################################

source -echo common_route_si_settings_icc.tcl


if {$MV_MODE != "NONE" } {

  ##########################
  ## FIX SPECIAL MV CELLS
  ##########################
  
  if {$LS_CELLS != ""} {
    set LS [get_cells -hier -f "ref_name =~ ${LS_CELLS}*"]
    set_dont_touch $LS
    set_attribute $LS is_fixed true
  }

  if {$RR_CELLS != ""} {
    set RR [get_cells -hier -f "ref_name =~ ${RR_CELLS}*"]
    set_dont_touch $RR
    set_attribute $RR is_fixed true
  }

  if {$AO_CELLS != ""} {
    set AO [get_cells -hier -f "ref_name =~ ${AO_CELLS}*"]
    set_dont_touch $AO
    set_attribute $AO is_fixed true
  }

}  

if { $MV_MODE == "UPF" } {

  #############################
  ## COMPLETE POWER CONNECTIONS
  #############################
  
  derive_pg_connection -create_net -verbose 
  derive_pg_connection -reconnect -verbose 
  check_mv_design -power_nets -verbose 
  

}


####Pre route_opt checks
##Check for Ideal Nets
set num_ideal [sizeof [all_ideal_nets]]
if {$num_ideal >= 1} {echo "SCRIPT-Error-Info: $num_ideal Nets are ideal prior to route_opt. Please investigate."}

##Check for HFNs
set hfn_thres "41 101 501"
foreach thres $hfn_thres {
  set num_hfn [sizeof [all_high_fanout -nets -threshold $thres]]
  echo "SCRIPT-Info: Number of nets with fanout > $thres = $num_hfn"
  if {$thres == 501 && $num_hfn >=1} {
    echo "SCRIPT-Error-Info: $num_hfn Nets with fanout > 500 exist prior to route_opt - Please check if marked ideal - possibly add buffer tree"
  }
}



if {$MCMM_MODE } {

 set_active_scenarios [lminus [all_scenarios] $ICC_MCMM_CTS_SCENARIO]
 update_timing 

}




if {$MV_MODE != "NONE" } {

  if {[file exists [which $CUSTOM_SECONDARY_POWER_ROUTE_SCRIPT]]} { 
        source -echo $CUSTOM_SECONDARY_POWER_ROUTE_SCRIPT 
   } 

}



if { [check_error -verbose] != 0} { echo "SCRIPT-Error, flagging ..." }

########################################
#       ROUTE_OPT CORE COMMAND         #
########################################

## some checks upfront 
#check_routeability
report_preferred_routing_direction

## Route first the design 
## Enable the new distributed routing algorithm 
report_tlu_plus_files
## Enabling a different distributed algorithm for Detail Route
# set_app_var droute_enable_one_pass_partitioning 1
route_opt -initial_route_only -num_cpus $ICC_NUM_CPUS
if { [check_error -verbose] != 0} { echo "SCRIPT-Error, flagging ..." }




if {$ICC_DBL_VIA} {


  save_mw_cel -as ${ICC_ROUTE_CEL}_NO_DBL_VIA
## To get optimal double via rate, perform first a non-timing driven double via insertion.
## Later on, during chipfinishing, we will execute a Timing Driven double via insertion.

## Auto mode for insert_redundant_via
  insert_redundant_vias -auto_mode preview
  insert_redundant_vias -auto_mode insert -num_cpus $ICC_NUM_CPUS


## Optionally, manual mode for insert_redundant_via
# insert_redundant_vias \
   #-num_cpus $ICC_NUM_CPUS \
   #-from_via "from_via_list" \
   #-to_via "to_via_list" \
   #-to_via_x_size "list_of_via_x_sizes" \
   #-to_via_y_size "list_of_via_y_sizes"

   ##example: -from_via "VIA45 VIA45 VIA12A" -to_via "VIA45f VIA45 VIA12f" -to_via_x_size "1 1 1" -to_via_y_size "2 2 2"

}






########################################
#           CONNECT P/G                #
########################################


## Connect Power & Ground for non-MV and MV-mode


if { $CUSTOM_CONNECT_PG_NETS_SCRIPT != ""} {

  if {[file exists [which $CUSTOM_CONNECT_PG_NETS_SCRIPT]]} {
    source -echo $CUSTOM_CONNECT_PG_NETS_SCRIPT 
  }

} else {
 if {$MV_MODE == "NONE"} {

  derive_pg_connection -create_net
  derive_pg_connection -reconnect


 }

 if {$MV_MODE == "NONUPF"} {
  source -echo mv_pg_connect.tcl 
 }

 if {$MV_MODE == "UPF"} {

  derive_pg_connection -create_net -verbose
  derive_pg_connection -reconnect -verbose
  redirect -file $REPORTS_DIR/route.mv {check_mv_design -power_nets -verbose}
  save_upf $RESULTS_DIR/$ICC_ROUTE_CEL.upf

 }
}




if {$MCMM_MODE } {

 set_active_scenarios [lminus [all_scenarios] $ICC_MCMM_CTS_SCENARIO]
 update_timing

}


redirect -file $REPORTS_DIR/$ICC_ROUTE_CEL.qor {report_qor}
redirect -file $REPORTS_DIR/$ICC_ROUTE_CEL.con {report_constraints}


if {$MCMM_MODE } { 

 redirect -file $REPORTS_DIR/$ICC_ROUTE_CEL.max.tim {report_timing -scenario [all_scenarios] -capacitance -transition_time -input_pins -nets -delay max} 
 redirect -file $REPORTS_DIR/$ICC_ROUTE_CEL.min.tim {report_timing -scenario [all_scenarios] -capacitance -transition_time -input_pins -nets -delay min} 

} else {

 redirect -file $REPORTS_DIR/$ICC_ROUTE_CEL.max.tim {report_timing -capacitance -transition_time -input_pins -nets -delay max} 
 redirect -file $REPORTS_DIR/$ICC_ROUTE_CEL.min.tim {report_timing -capacitance -transition_time -input_pins -nets -delay min} 

}





create_qor_snapshot -timing -constraint -congestion -clock_tree -route -name $ICC_ROUTE_CEL
save_mw_cel -as $ICC_ROUTE_CEL
redirect -file $REPORTS_DIR/$ICC_ROUTE_CEL.qor_snapshot.rpt {report_qor_snapshot}






exit