Found in 2 comments on Hacker News
QuinnWilton · 2021-04-27 · Original thread
Joe Armstrong and Robert Virding actually experimented with compiling Erlang to Strand. I'm not familiar with all of the details, but I believe they saw a factor of six speedup as compared to the Prolog implementation [0], but deemed the project a failure because of the complexity involved in restricting Strand's parallelism and failure to meet their target of a 70x speedup [1].

I'm actually sharing this in the first place because I managed to acquire a copy of "Strand: New Concepts in Parallel Programming" [2] yesterday, and it includes a case study about the Erlang -> Strand compiler, so I've been having fun trying to piece together the lineage.

[0] https://erlang.org/download/armstrong_thesis_2003.pdf

[1] http://erlang.org/pipermail/erlang-questions/2007-September/...

[2] https://www.amazon.com/Strand-New-Concepts-Parallel-Programm...

jlarocco · 2018-10-10 · Original thread
Although prototyped in Prolog, Erlang borrowed heavily from an obscure language called Strand.

https://en.wikipedia.org/wiki/Strand_(programming_language)

https://www.amazon.com/Strand-New-Concepts-Parallel-Programm...

I have a copy of the book, and the code samples are really similar to Erlang.

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