TypeError: cannot pickle '_nrt_python._MemInfo' object when passing a numba Dict to the @concurrent function about deco HOT 2 CLOSED

In order to run in separate processes the arguments to @concurrent functions need to be pickleable. I think that requirement does not exist if you're using threads, but then you'll only get concurrency and not parallelism.

You'll have to find a way to make the arguments (and return values) pickleable, perhaps by passing a handle to the work item, index or something, and then constructing the dictionary inside the @concurrent function rather than passing it in. (Or use threads if concurrency is enough).

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Updated the README to mention this limitation in 17f5c47

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