Error detected in psf library while writing to file `tran.tran'.

Hi,

I am using virtuoso to simulate my 30k gates design and in the process i am saving all the signals along with power signals.

After 2.5ms (2.27 %) of the simulation, i am getting a fatal error "  FATAL (SPECTRE-7035): write error on PSF file: Error detected in psf library while writing to file `tran.tran'." and the simulation gets terminated.

The simulation folder has >200GB memory available and the size of file tran.tran is 1.5GB.

Please suggest how to correct this error.

Thanks in advance.