I’m curious what the right way to append elements to a vector stored in a JLD2 file, assuming that I want to save the data to disk every time I add an element (because each element is expensive to compute). The first thing I tried was: jldopen("test.jld2", "a+") do file file["x"] = [] end for…

HDF5 (on which JLD is based) is not very efficient with small writes, and by default leaves you open to losing data if your program crashes before flushing. The new single writer multiple reader (SWMR) feature allows you to flush a specific dataset, and I believe it syncs the dataset and metadata to…

Also both of you examples show opening and closing the JLD file on each iteration, which is expensive. You might consider writing to a flat binary file on each iteration as a backup, and just writing the complete results in JLD at the end. Or jldopen("test.jld2", "w") do file results = [] for i…

Appending an element to a JLD2 file

General Usage

rdeits October 20, 2017, 8:06pm 5

x-ref: HDF5 speed?

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Appending an element to a JLD2 file

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