Manodipan,

Er, isn't the error rather self explanatory? It's telling you that the function is expecting 2 arguments, but you've given it 3. It tells you what the 3 arguments are, and presumably the definition of my_run in the OCEAN script is only defined as having 2 arguments.

You didn't show the code, but it's rather unlikely that SKILL has got this wrong...

Andrew.

OK, so presumably this is a different error now.

What are you trying to do? VDC() will actually get the voltage from the DC operating point, not the dc sweep. VDC is equivalent to:

selectResult('dcOp)
v("/VREF")

or

v("/VREF" ?result 'dcOp)

If you want the dc sweep's results, you can either use VS() or :

selectResult('dc)
v("/VREF")

and then you could use value() on that to find the value at 1 (where 1 is the value of whatever you're sweeping).

Overall, the error is telling you that VREFDC is nil, which means it did not manage to read the simulation results for whatever reason. I suggest you try interactively doing the openResults(), calling results() to see what's available, try the various functions to see what's happening. Virtually impossible for me to debug without the data - but clearly something is inconsistent.

One common problem is where people have copied the netlist/netlistHeader/netlistFooter and have simulated using that - but no longer have access to the map/amap directories in the netlist hierarchy. If you do that, then using a schematic name "/VREF" will not work, and you'd have to give whatever name "VREF" is mapped to in the netlist (most likely "VREF" (no leading slash)). But this is a wild guess too.

Regards,

Andrew.

Unfortunately I don't have extra sensory perception, so can't guess what your problem is

Perhaps you should contact Cadence Customer Support (together with data to show what you're doing in detail) so that somebody can help you resolve the problem with some evidence to show the problem?

Regards,

Andrew.

Hi,
You must have originally generated this ocean script from ADE-->statistical analysis where you had given some expressions using calculator.  In this case the path of raw file in the expressions is ~/simulation/<cellname>/spectre/<viewname>. Hence this works only when you go psf or <cellname> folder and run the simulations.

You can change simulation result directory in ADE. ADE-->setup-->simulation dir.  Change this to your home and then generate ocean file from statistical analysis window and run ocean script from home.

This should let you run ocean from your home directory. Needless to say you should change the simulator dir to the path from which you wan to fire sims.

Let me know this helps
-CA

What version of the IC tools are you using (Help->About in the CIW)?

Regards,

Andrew.

In that case, use ADE XL, and then  you can run Monte Carlo from there, and get an OCEAN XL script which runs monte carlo.

The old monteCarlo() API is still supported in OCEAN, but there are some issues - perhaps these are what you're seeing (plotting family waveforms after the simulation - CCR 749799). Alternatively you can use the new ADE XL/OCEAN XL related approach.

Andrew.