Encounter Library Characterizer Problem

[eklikeroomys]

Halo,

I'm having a problem with characterizing only one cell in a digital library.
The simulation of the cell completes with no errors along with all of the other cells, but as soon as ELC tries to write the cell to ALF, it receives a segmentation error, or says that the cell is locked.

I have no idea how to fix this, I have tried releasing the locks with db_clean but this doesn't fix the problem. This is the largest cell in the library which generates the most simulation vectors, could this be the issue?

Thank you

 

[graphene]

do you have the solution with you now? can you please share it ?

 

[eklikeroomys]

In the end I had to remove that specific cell from the library. It may have used too much memory for the machine to handle, causing ELC to fail.
I may retry some or other time on a newer machine.

 

[graphene]

Hallo,

I am creating a standard cell library.

TO generate the *.lib file, should I generate Netlist including the load caps the schematic or without load ?

if at all does it make any difference, including and ignoring load cas in Netlist used in Library generation.

thnku in advance

 

[eklikeroomys]

No, without. Only place your standard cells in the netlist. ELC will automatically determine the load that each cell is capable of driving etc.

 

[Prashanthanilm]

What is ELC? How different it is from Altos?

 

[eklikeroomys]

ELC = Encounter Library Characterizer.
Used for characterizing digital standard cell libraries.
I don't know Altos.