common_optimization_settings_icc.tcl

synopsys icc 使用参考脚本

## ICC RM Version: B-2008.09        

echo "\tLoading :\t\t [which [info script]]"
## Optimization Common Session Options - set in all sessions

## General Optimization
set physopt_pccts_dont_touch_support true 
set_app_var timing_enable_multiple_clocks_per_reg true 
set_app_var case_analysis_with_logic_constants true 
set_fix_multiple_port_nets -all -buffer_constants  
set_auto_disable_drc_nets -constant false 
## By default, the tool will set a critical range of 50% of the WNS, per pathgroup.
## If you want to change this behavior, please use the command below
# set_critical_range <your number> [current_design]



if {$ICC_STRATEGY == "QOR"} {

## In case of the QOR flow, we apply a timing derating for 
## only the data in only the setup corner during place_opt

if {!$MCMM_MODE } {
   set_timing_derate -max -late -data 1.05 
} else {

   set_active_scenarios [lminus [all_scenarios] $ICC_MCMM_CTS_SCENARIO] 
   foreach scenario [all_active_scenarios] { 
     current_scenario $scenario 
     set_timing_derate -max -late -data 1.05
   };

  }
}




## Set Area Critical Range
## Typical value: 10 percent of critical clock period
if {$AREA_CRITICAL_RANGE_PRE_CTS != ""} {set_app_var physopt_area_critical_range $AREA_CRITICAL_RANGE_PRE_CTS} 


## Set Power Critical Range
## Typical value: 9 percent of critical clock period
if {$POWER_CRITICAL_RANGE_PRE_CTS != ""} {set_app_var physopt_power_critical_range $POWER_CRITICAL_RANGE_PRE_CTS} 


## Set dont use cells
## Examples, big drivers (EM issues), very weak drivers, delay cells, 
## clock cells

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


## Hold fixing cells
if { $ICC_FIX_HOLD_PREFER_CELLS != ""} { 
    remove_attribute $ICC_FIX_HOLD_PREFER_CELLS dont_use 
    remove_attribute $ICC_FIX_HOLD_PREFER_CELLS dont_touch 
    set_prefer -min $ICC_FIX_HOLD_PREFER_CELLS 
} 


## Fixing the locations of the hard macros
if {[all_macro_cells] != "" } { 
  set_dont_touch_placement [all_macro_cells]  
} 



## MCMM settings
if {$MCMM_MODE } {
 set_app_var mcmm_enable_high_capacity_flow TRUE  
 ## do a more aggressive scenario reduction for the TTR flow 
 if {$ICC_STRATEGY == "TTR"} {
 set_app_var mcmm_high_capacity_effort_level 10 
}
}


if {$LEAKAGE_POWER} {


## Leakage power opto throughout the flow
  set_power_options -leakage true 

}

if {$DYNAMIC_POWER} {


## Dynamic power opto throughout the flow
  set_power_options -dynamic true -low_power_placement true

}






if {$ICC_STRATEGY == "QOR"} {


## The 85% utilization can change depending on the design
 set_congestion_options -max_util 0.85

}



## End of Common Optimization Session Options