Michael Tiemann - Julia Solves the 2 Language Problem, However It Creates the 1.5 Language Problem

Julia has established itself as the programming language that sits in the intersection between very fast languages, like C and Fortran, and high abstraction programming languages, like Python and Matlab. It has been argued that this solves the 2 language problem where a prototype is programmed in a high abstraction language and later needs to be re-implemented in a fast language. In this talk, we will argue that, while Julia does solve the 2 language problem, it also creates the 1.5 language problem where there is a huge difference between working Julia code and very efficient Julia code. We will showcase a medium-sized problem to highlight this discrepancy. Finally, we want to start a discussion in the community on how to solve this problem by targeting the education of Julia novices towards performance at scale.

Contents
00:00 Welcome!
00:10 There are two ways of using Julia
00:34 Existence of these two ways is not a problem. My expectations were a problem.
00:55 Formal self introduction of the speaker and his collaborator
01:55 Bosch traditionally was dominated by MATLAB and Python for machine learning
02:20 When our opportunity to use Julia rose
03:24 Producing naive port from MATLAB to Julia was very slow
04:36 This port was slow and take much longer time that we expected
05:37 Experience Julia programmers probably want to point to me how memory management in our project should work
06:13 How two Julia languages looks in practice
08:18 I'm still not sure what `@unpack` macro does
08:46 If read SciML documentation from start to finish, we would find this
09:54 What I think about 1.5 language problem?
10:38 Is Julia failing at its main promise?
12:12 When will Julia run on washing machines?
12:57 Thank you!
13:10 Q&A: does alock check is helpful?
13:25 Q&A: do you see a shift of emphasis in the promotion of Julia?
14:45 Q&A: what algorithms do you want to run on the washing machine?
15:09 Q&A: which hardware is running on washing machines?
16:11 Outro

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