correlation between PrimeTime and MAGMA.........help me

[santoshl]

magma primetime correlation

Hi,
Im reponsible for check correlation between timing reports generated by MAGMA and Ptime ( ran using sdf, sdc and netlist generated by MAGAM). But i found there is lot of difference in slack values.
Please advice me, what might be the reasons for this mismatch.

 

[aravind]

There are lot of bugs in magma timing engine.. U will always find mismatch between magma and PT timing..
Please run encounter and check with PT.. U wont see any issue
best of luck

 

[joe2moon]

Those mismatch(es) might due to the interpretation of timing constraints(.sdc file) are different in these 2 timing engines.

 

[iwpia50s]

joe2moon is correct, for correlation you should start by running a timing report using no interconnect delays and see if you get the exact same timing and the exact same endpoints. If you don't then the two tools are interpreting the constraints differently.

 

[praneshcn]

hi,
u can go through an application note " Correlation bt magma & prime time" in magma-da.com.