I'm runing a spectre simulation via ADE-L in 6.1.5
I want to use a VPWLF signal source, and I would like to point to the file with a directory path which is relative to my cadence startup directory (i.e. my design workspace). All the documentation I have read talks about directory paths which are relative to the netlist directory, but this does not help, because there is no fixed relationship between our design workspaces and our simulation directories.
In ADE you can enter the Include Path from Setup->Simulation Files->Include Path (on the form). If you add "." to that, spectre will search for relative paths in the directory you launched Virtuoso from. If it's a subdir, you could add ./models for example, and so on.