ocaml-interop
domainslib
| ocaml-interop | domainslib | |
|---|---|---|
| 2 | 4 | |
| 0 | 161 | |
| - | 0.0% | |
| 0.0 | 5.8 | |
| over 1 year ago | 2 months ago | |
| Rust | OCaml | |
| MIT License | ISC License |
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ocaml-interop
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OCaml 5.0 Alpha Release
OCaml is possibly my favorite language, along with Rust, and what I hope from the Santa is projects like https://github.com/tezedge/ocaml-interop to become mature.
I think all these "properly typed" languages should aspire to have great interoperability: after all, they have types to help. But I realize there can be big technical difficulties in making it safe, in particular with garbage collection..
- 2021 at OCamlPro
domainslib
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OCaml 5.0 Alpha Release
For nested parallel computations (think Scientific Programming, where one would use OpenMP, Rust Rayon, etc), we have domainslib [1]. Eio, a direct-style, effect-based IO library is pretty competitive against Rust Tokio [2]. The performance will only get better as we get closer to the 5.0 release.
[1] https://github.com/ocaml-multicore/domainslib
[2] See the http server performance graphs at https://tarides.com/blog/2022-03-01-segfault-systems-joins-t...
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PR to Merge Multicore OCaml
1. Domains are the unit of parallelism. A domain is essentially an OS thread with a bunch of extra runtime book-keeping data. You can use Domain.spawn (https://github.com/ocaml-multicore/ocaml-multicore/blob/5.00...) to spawn off a new domain which will run the supplied function and terminate when it finishes. This is heavyweight though, domains are expected to be long-running.
2. Domainslib is the library developed alongside multicore to aid users in exploiting parallelism. It supports nested parallelism and is pretty highly optimised (https://github.com/ocaml-multicore/domainslib/pull/29 for some graphs/numbers). The domainslib repo has some good examples: https://github.com/ocaml-multicore/domainslib/tree/master/te...
3. We've not tested against other forms of parallelism. There isn't anything stopping you exploiting SIMD in addition to parallelism from domains.
4. No, we've not compared performance by OS.
5. No plans for the multicore team to look at accelerator integration at the moment.
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The road to OCaml 5.0
[3] Domainslib -- Parallel Programming over Multicore OCaml, https://github.com/ocaml-multicore/domainslib
What are some alternatives?
ocaml-rs - OCaml extensions in Rust
ocaml-multicore - Multicore OCaml
drom - drom is a wrapper over opam/dune in an attempt to provide a cargo-like user experience. It can be used to create full OCaml projects with sphinx and odoc documentation. It has specific knowledge of Github and will generate files for Github Actions CI and Github pages.
dune - A composable build system for OCaml.
eioio - Effects-based direct-style IO for multicore OCaml
ocaml - The core OCaml system: compilers, runtime system, base libraries
esy - package.json workflow for native development with Reason/OCaml
melange - A mixture of tooling combined to produce JavaScript from OCaml & Reason
rescript-compiler - The compiler for ReScript.
RFCs - Design discussions about the OCaml language