Help with staggered parallel plotting

I recently set up a Linux (Ubuntu Server 20.04) plotting only machine. It’s an i5 3570 with 16gb ram and a 500gb Samsung 870 EVO SATA SSD for the temp drive. I can’t do 2 plots in parallel without staggering since the 500gb SSD (457 GiB available) is not large enough for 2 plots worth of temp files. I was wondering how much I should stagger the second plot. Here’s a pastebin of the plotting log with extraneous info removed and sensitive info censored: Trimmed Log - Pastebin.com