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The SharedMemory object must be created after setting the same mp_context used later for computation.

@yger can you test this?

@alejoe91 alejoe91 requested a review from yger January 19, 2026 13:47
@alejoe91 alejoe91 added core Changes to core module concurrency Related to parallel processing labels Jan 19, 2026
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I think it is not the sharedmem but the multiprocessing.Lock that cause the problem

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I think #4333 fix the the same bug.
The sharemem do not need mp_context but the multiprocessing.Lock() do.

I get also the same error than pierre and thi PR is also fixing

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