Op 2017-09-12, Thomas Jollans schreef <t...@tjol.eu>: > I'm not sure actually. Maybe someone else here can help. I have a hunch > that on Windows the memory might not be shared in the same way that it > would on Linux/Unix, since Windows simply doesn't have the same process > forking capabilities as Unix.
`multiprocessing` is not relying on the POSIX "inherit an anonymous mmap()" semantics to get a piece of memory shared across processes. 1. On Windows, it uses the Windows-specific functionality to associate a tagname with an mmap and open the specific mmap by tagname. 2. On Posix platforms, it creates a file which is opened and immediately unlink()-ed, and the file descriptor is communicated to the child process using a UNIX-domain socket. Stephan -- https://mail.python.org/mailman/listinfo/python-list
