# \`similar\` does not produce a SharedArray when fed one

**URL:** <https://discourse.julialang.org/t/similar-does-not-produce-a-sharedarray-when-fed-one/23287>\
**Category:** Internals & Design\
**Tags:** parallel\
**Created:** [April 18, 2019, 11:45pm UTC](https://discourse.julialang.org/t/similar-does-not-produce-a-sharedarray-when-fed-one/23287 "2019-04-18T23:45:46Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![eliassno](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/eliassno/32/18917_2.png) [@eliassno](https://discourse.julialang.org/u/eliassno)\
**Post date:** [April 19, 2019, 1:42am UTC](https://discourse.julialang.org/t/similar-does-not-produce-a-sharedarray-when-fed-one/23287/2 "2019-04-19T01:42:36Z")

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The source array is actually an `Array`

> <https://github.com/JuliaLang/julia/blob/80516ca20297a67b996caa08c38786332379b6a5/stdlib/SharedArrays/src/SharedArrays.jl#L555>

You can also check out

> [@Why does \`similar(::SharedArray)\` create an \`Array\`?](https://discourse.julialang.org/t/why-does-similar-sharedarray-create-an-array/6673/2):
>
> Some discussion: [https://github.com/JuliaLang/julia/pull/12964](https://github.com/JuliaLang/julia/pull/12964), see also [https://github.com/JuliaLang/julia/pull/23747](https://github.com/JuliaLang/julia/pull/23747)

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