Make DistributedArrays thread-safe #263
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By putting locks around the global dictionaries in
DistributedArraysandDistributedArrays.SPMD, and using anAtomicfor the ID generation.While it works, I think conceptually it would be cleaner to store references of remote parts locally, associated with each array, and make use of the reference tracking and garbage collection behaviour of
RemoteChannels: https://docs.julialang.org/en/v1/manual/distributed-computing/#Remote-References-and-Distributed-Garbage-Collection As advised in the docs, to reduce memory on the workers in the finalizer of each array we could callfinalizeon theRemoteChannel.