The directory containing the root of the VTR source tree.

For instance, if you extracted/cloned the VTR source into /home/myusername/vtr, your $VTR_ROOT would be /home/myusername/vtr.


Minimum Width Transitor Area (MWTA) is a simple process technology independent unit for measuring circuit area. It corresponds to the size the smallest (minimum width) transistor area.

For example, a 1x (unit-sized) CMOS inverter consists of two minimum width transistors (a PMOS pull-up, and NMOS pull-down).

For more details see [BRM99] (the original presentation of the MWTA model), and [CB13] (an updated MWTA model).