smol comment on OCaml 4

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Simon Cruanes 2024-06-26 11:30:29 -04:00
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@ -23,6 +23,9 @@ In addition, some concurrency and parallelism primitives are provided:
provides the fork-join parallelism primitives
to use within tasks running in the pool.
On OCaml 4.xx, there is only one domain; all threads run on it, but the
pool abstraction is still useful to provide preemptive concurrency.
## Usage
The user can create several thread pools (implementing the interface `Runner.t`).