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Hi Matt & others,
I've done some more thinking about this stuff and I have some questions/thoughts I'd like your thoughts on.
I would like to set down some solid ideas of what we would like to get out of this. This will allow us to design the system better from the get-go. Here's what I've got:
The ability to identify simulations datasets that are ordered in time. For an Enzo dataset this is easy with the UUID values. For other datatypes, I'm not so certain it would be quite so direct. There could be some kind of similarity measure based on dataset parameters, or perhaps keep it simpler and do some inference based on file paths.
What are the important parameters of a simulation to record? Because SQL is binary, it wouldn't be too difficult or unreasonable to store everything in an Enzo restart text file, for example. Or similarly for other datatypes. There's no reason why the database can't be heterogeneous with one table per datatype, each with data field labels of their own.
What are the questions we'd like to be able to query? I can think of:
What are the differences between two simulations/datasets in my collection?
Another thing would be to add a step where the dataset is searched for on disk, to see if it's still available. I could see this as an optional, default==False step, due to the preponderance of sluggish Lustre disk systems out there.
Thanks for the comments!
-- Stephen Skory firstname.lastname@example.org http://stephenskory.com/ 510.621.3687 (google voice)