DC 指令问题 set_max_leakage_power

liwei52711

我正在做DC的实验，跟着网上的视频跑flow遇到一个指令 set_max_leakage_power ，或许是版本原因，报出warning：
Command  ‘ set_max_leakage_power’ is obsolete and is being ignored. (INFO_102)

请问各位前辈大佬有什么可以等价替换的指令吗？还有以后遇到这种指令因为软件版本更新，怎么查到替换的指令呢，或者怎么查到替换的解决办法？

randolpha

To optimize leakage power, replace the set_max_leakage_power command with the
set_multi_vth_constraint command.

liwei52711

randolpha 发表于 2020-8-28 16:09
To optimize leakage power, replace the set_max_leakage_power command with the
set_multi_vth_constrai ...

thanks
The instruction I got before is 'set_max_leakage_power  0 ',
how can I achieve the same effect with the new command now?

liwei52711

randolpha 发表于 2020-8-28 16:09
To optimize leakage power, replace the set_max_leakage_power command with the
set_multi_vth_constrai ...

If I enter this command'set_multi_vth_constraint -lvth_percentage 0 ', there will be an error "Cannot specify the -lvth_percentage argument without -lvth_groups arguments."
How do I set up my "groups"  by using -lvth_groups arguments?
sorry to bother you

randolpha

To enable leakage power optimization, use the set_multi_vth_constraint command.
For example,
de_shell> set_multi_vth_constraint -lvth_groups {lvt svt} \
-lvth_percentage 15 -type soft -cost cell_count
When running this command in DC Explorer, you should specify the cell_count
keyword with the -cost option for the percentage of low threshold-voltage cells in the
design.