place_opt_icc.tcl

synopsys icc 使用参考脚本

## ICC RM Version: B-2008.09        


##########################################################################################
## place_opt_icc: Placement and Placement Optimizations
##########################################################################################

source -echo icc_setup.tcl 

open_mw_lib $MW_DESIGN_LIBRARY
redirect /dev/null "remove_mw_cel -version_kept 0 ${ICC_PLACE_OPT_CEL}" 
copy_mw_cel -from $ICC_FLOORPLAN_CEL -to $ICC_PLACE_OPT_CEL
open_mw_cel $ICC_PLACE_OPT_CEL
link 



## Optimization Common Session Options - set in all sessions
source -echo common_optimization_settings_icc.tcl 
source -echo common_placement_settings_icc.tcl 

## Source CTS Options CTS can be run during place_opt 
source -echo common_cts_settings_icc.tcl 


## Set Ideal Network so place_opt handles data/clock mixing with high fanout
## Remove before clock_opt cts

if {!$MCMM_MODE } {

  set_ideal_network [all_fanout -flat -clock_tree ]

} else {

   set_active_scenarios [lminus [all_scenarios] $ICC_MCMM_CTS_SCENARIO]
   foreach scenario [all_active_scenarios] {
     current_scenario $scenario
     set_ideal_network [all_fanout -flat -clock_tree ]
   };

  }



set_app_var compile_instance_name_prefix icc_place  


if {$MV_MODE == "UPF"} {

  derive_pg_connection -create_net -verbose  
  derive_pg_connection -reconnect -verbose 
  check_mv_design -power_nets -verbose 

}

if {$MV_MODE != "NONE"} {

## Recommended to ensure a gap between the Level shifters and the std cells
#   set_keepout_margin -outer {-0.1 0 0.1 0} [get_cells -hier -f "ref_name =~ ${LS_CELLS}*"]

}


if {$MV_MODE == "NONUPF" && $AO_MODE} {

 ## Remove the dont_touch on the AO-nets prior to place_opt. Will be put again later on.
 set_dont_touch [get_always_on -nets] false

}

if {$MCMM_MODE } {

 set_active_scenarios [lminus [all_scenarios] $ICC_MCMM_CTS_SCENARIO]

}




#######################
## MAGNET PLACEMENT  ## 
#######################
## Define e.g. a ram as a magnet and the command will pull the cells connected to this instance
## closer to the magnet, depending on the -logical_level amount you provide. 
## When adding the -exclude_buffers option, you instruct the tool to pull buffers as well, but do not consider them in the
## logical levels calculation

#magnet_placement -exclude_buffers -logical_level 2 [get_cells "INST_RAM1 INST_RAM2"]





##############################
## RP : Relative Placement  ## 
##############################
## Create RP constraints as shown below
#create_rp_group Lachd_Result_reg -design ORCA -columns 1 -rows 16 -utilization 1.000000
#add_to_rp_group ORCA::Lachd_Result_reg -leaf I_ORCA_TOP/I_RISC_CORE/I_ALU/Lachd_Result_reg_0_ -column 0 -row 0
#add_to_rp_group ORCA::Lachd_Result_reg -leaf I_ORCA_TOP/I_RISC_CORE/I_ALU/Lachd_Result_reg_1_ -column 0 -row 1
#add_to_rp_group ORCA::Lachd_Result_reg -leaf I_ORCA_TOP/I_RISC_CORE/I_ALU/Lachd_Result_reg_2_ -column 0 -row 2

## Other commands that can be used for RP group creation are : extract_rp_group and order_rp_groups
#extract_rp_group -group_name Lachd_Result_reg -objects [get_cells -hier Lachd_Result_reg*] -col 1 -apply
#extract_rp_group -group_name Oprnd_A_reg -objects [get_cells -hier Oprnd_A_reg*] -col 1 -apply
#extract_rp_group -group_name Oprnd_B_reg -objects [get_cells -hier Oprnd_B_reg*] -col 1 -apply
#order_rp_group -group_name Oprnd_reg {ORCA::Oprnd_A_reg ORCA::Oprnd_B_reg} -apply






if {$DYNAMIC_POWER } {
  if {$ICC_IN_SAIF_FILE != ""} {read_saif -input $ICC_IN_SAIF_FILE -instance_name $ICC_SAIF_INSTANCE_NAME} 
}





if {$DFT} {

  ##Read Scan Chain Information from DEF
  if {[file exists $ICC_IN_SCAN_DEF_FILE] } { 
       read_def $ICC_IN_SCAN_DEF_FILE  
     } else { 
       echo "SCRIPT-Error: Scan Def file $ICC_IN_SCAN_DEF_FILE is not found, but DFT is enabled. Please investigate" 
       exit  
  }

  redirect -file $REPORTS_DIR/scan_chain_pre_ordering.rpt {report_scan_chain}
  check_scan_chain   

}




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


if {$DFT} {
 if {$LEAKAGE_POWER || $DYNAMIC_POWER} {
    ##Optimize DFT and Power
    if {$ICC_STRATEGY == "TTR" } {
        place_opt -effort low -optimize_dft -power -num_cpus $ICC_NUM_CPUS 
    }
    if {$ICC_STRATEGY == "QOR" } {
        place_opt -congestion -area_recovery -effort medium -optimize_dft -power -num_cpus $ICC_NUM_CPUS 
    }
  } else {
    ##Optimize DFT 
    if {$ICC_STRATEGY == "TTR" } {
        place_opt -effort low -optimize_dft -num_cpus $ICC_NUM_CPUS 
    }
    if {$ICC_STRATEGY == "QOR" } {
        place_opt -congestion -area_recovery -effort medium -optimize_dft -num_cpus $ICC_NUM_CPUS 
    }
  }

} else {

  if {$LEAKAGE_POWER || $DYNAMIC_POWER } {
    ##Optimize Power 
    if {$ICC_STRATEGY == "TTR" } {
       place_opt -effort low -power -num_cpus $ICC_NUM_CPUS 
    }
    if {$ICC_STRATEGY == "QOR" } {
       place_opt -congestion -area_recovery -effort medium -power -num_cpus $ICC_NUM_CPUS 
    }
  } else {
    ##Default place_opt
    if {$ICC_STRATEGY == "TTR" } {
       place_opt -effort low -num_cpus $ICC_NUM_CPUS 
    }
    if {$ICC_STRATEGY == "QOR" } {
       place_opt -congestion -area_recovery -effort medium -num_cpus $ICC_NUM_CPUS 
    }
  }
}



if { [check_error -verbose] != 0} { echo "SCRIPT-Error, flagging ..." }
############################################################################################################
# ADDING ADDITIONAL FEATURES TO THE DEFAULT PLACE_OPT COMMAND
############################################################################################################
##
## When you want to add area recovery, execute : 
#
#   place_opt -area_recovery -effort low -num_cpus $ICC_NUM_CPUS
#

## When the design has congestion issues, you have following choices :
#
#   place_opt -congestion -area_recovery -effort low -num_cpus $ICC_NUM_CPUS ; # for medium effort congestion removal
#   place_opt -effort high -congestion -area_recovery -num_cpus $ICC_NUM_CPUS ; # for high eff cong removal


## What commands do you need when you want to optimize SCAN ?
#   read_def $ICC_IN_SCAN_DEF_FILE
#   check_scan_chain > $REPORTS_DIR/scan_chain_pre_ordering.rpt
#   report_scan_chain >>  $REPORTS_DIR/scan_chain_pre_ordering.rpt
#   place_opt -effort low -optimize_dft -num_cpus $ICC_NUM_CPUS


## What commands do you need when you want to reduce leakage power ?
#   set_power_options -leakage true 
#   place_opt -effort low -area_recovery -power -num_cpus $ICC_NUM_CPUS


## What commands do you need when you want to reduce dynamic power ?
#   set_power_options -dynamic true -low_power_placement true
#   read_saif -input $ICC_IN_SAIF_FILE
#   place_opt -effort low -area_recovery -power -num_cpus $ICC_NUM_CPUS
#          Note : option -low_power_placement enables the register clumping algorithm in 
#                 place_opt, whereas the option -dynamic enables the 
#                 Gate Level Power Optimization (GLPO)


## When you want to do scan opto, leakage opto, dynamic opto, and you have congestion issues, 
## use all options together :
#   read_def $ICC_IN_SCAN_DEF_FILE
#   set_power_options -leakage true -dynamic true -low_power_placement true
#   place_opt -effort low -congestion -area_recovery -optimize_dft -power -num_cpus $ICC_NUM_CPUS




##############################
## RP : Relative Placement  ## 
##############################
## Checking any RP violations.
## It is recommended to open up the GUI and bring up the RP hierarchical browser and 
## RP visual mode to see if RP groups were created correctly
#check_rp_groups -all 





if {$MV_MODE == "NONUPF"} {


  ## in case new nets are created that go from one VA to another, level shifters need to be inserted on these nets 
  # insert_level_shifters -all_clock_nets -verbose

  ## optionally insert isolation cells 
  # insert_isolation_cell -reference $lib_cell -enable [find net $enable_net] -object_list [get_net $nets_missing_isolation_cells]

  redirect -file $REPORTS_DIR/place_opt.mv {check_mv_design -power_nets -verbose}

}


if {$MV_MODE == "NONUPF" && $AO_MODE} {
## Putting the dont_touch on the AO-nets after place_opt. 
 set_dont_touch [get_always_on -nets] true 
}





########################################
#           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/place_opt.mv {check_mv_design -power_nets -verbose}
  save_upf $RESULTS_DIR/$ICC_PLACE_OPT_CEL.upf

 }
}




if {$MCMM_MODE } { 

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

} else {

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

}





## Create Snapshot and Save
create_qor_snapshot -timing -constraint -congestion -name $ICC_PLACE_OPT_CEL  
save_mw_cel -as $ICC_PLACE_OPT_CEL  
redirect -file $REPORTS_DIR/$ICC_PLACE_OPT_CEL.qor_snapshot.rpt {report_qor_snapshot} 
redirect -file $REPORTS_DIR/$ICC_PLACE_OPT_CEL.qor {report_qor}
redirect -file $REPORTS_DIR/$ICC_PLACE_OPT_CEL.con {report_constraints}




exit