# Nested pmap() functions don not work as I expect

**URL:** <https://discourse.julialang.org/t/nested-pmap-functions-don-not-work-as-i-expect/9789>\
**Category:** Performance\
**Tags:** pmap\
**Created:** [March 18, 2018, 3:17pm UTC](https://discourse.julialang.org/t/nested-pmap-functions-don-not-work-as-i-expect/9789 "2018-03-18T15:17:39Z")\
**Posts on this page:** 1\
**Showing post:** 3

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**Author:** ![tk3369](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/tk3369/32/2824_2.png) [@tk3369](https://discourse.julialang.org/u/tk3369)\
**Post date:** [March 18, 2018, 7:14pm UTC](https://discourse.julialang.org/t/nested-pmap-functions-don-not-work-as-i-expect/9789/3 "2018-03-18T19:14:34Z")

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> [@ersoacc](#):
>
> For example: Worker 2 computes ASPINS1Sub and when it comes to inside pmap, it does not work in parallel. Just worker 2 does the job (it seems there is no internal pmap).

Nested `pmap` seems to work fine. See my [notebook](https://github.com/tk3369/julia-notebooks/blob/master/pmap%20inside%20pmap%20(juliabox).ipynb) for an example.

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