About compile_ultra and compile_ultra -incr

Status
Not open for further replies.
H

hjacky

Newbie level 5
Joined
Oct 22, 2013
Messages
10
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Visit site
Activity points
61
Hi,

Does someone know the difference between the following flow in Design Compiler:

Flow 1: Netlist+sdc -> compile_ultra -> compile_ultra -incr -> final_compile_1.ddc
Flow 2: Netlist+sdc -> compile_ultra -> initial_compile.ddc -> compile_ultra -> final_compile_2.ddc

Thanks,
 

For the second flow, after i generated a ddc file from DC, i can use the ddc to generate DEF/FP files in ICC, then i can use the def and former ddc files as input data into DC (one of Design compiler topographical feature).
 

Understood. That means in the 2nd case, you are invoking DC twice(one without def and one with def). The 2nd one yields more accurate results. I don't know of any other difference.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…