Memory issues with ocean script (Monte-Carlo+Parametric analysis)

Hi all, (sorry for this loooong first post :) )

- I need to do a Monte-Carlo simulation (Virtuoso 6.1.5) for a RF circuit with N runs for different combinaisons of parameters (voltages V1 to V4)

- For each of the 256 combinaisons I want to run a Monte-Carlo to evaluate 4 different parameters (like gain, linearity... Perf1 to Perf4) for each iteration ( N*256 runs totally)

- For each iteration of this Monte-Carlo I want to store the data into a .csv file like this:

V1,V2,V3,V4,Perf1,Perf2,Perf3,Perf4 

- I did a script in OCEAN XL which is basically a loop in which I create a Monte-carlo script with the right parameters, run it and write the results into a .csv file

for each combinaison(

                write MC Run (with good parameters)

                Perform MC Run

                write Results into the csv file()

)

Everything works fine (the MC is done with good parameters, results are well-written)

The problem is the following:

After approx. 50 or 60 of the 256 combinaisons a memory warning appears saying than my RAM available is low. The memory continues to go down until the simulation crashes by lack of RAM memory. I run Cadence on a 24GB-RAM server (shared with other users) so I guess than the issue is in my script because I did not have any problems before...

How can I be sure than after eah iteration of the loop (MC+writing results) my MC run is deleted from RAM memory?

Leaving a file open for all the simulation process is it "RAM-consuming"?

What can be the problem?

If someone has an idea it would be very helpfull...