DAta access component - change file during sweep

I run a sweep optimization, and every time I am reading the circuit parameters from DAC (data access component).

I want the current simulation generate the parameter files for the next sweep. So, I need to write the same parameter file after 1 sweep and hope the 2nd sweep can read the new file. However, it does not work the way as I expected. All the sweeps use the read the same parameter file (the initial one). Only after all the sweep being done, my parameter file is written.

Can anyone help me with this? Thanks very much.

This issue is not specific to Ptolemy simulations. I will move the topic to the "Analog Simulation" area since there is a better chance you will get an answer there.

One could write a new file with incremented sweep index. The sim will only read the new file on next/subsequent sweep. Could the previous data be kept in memory instead?

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