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Re: [MirageOS-devel] MirageOS on more than 1 vCPU?

  • To: "Nadathur, Sundar" <sundar.nadathur@xxxxxxxxx>
  • From: Anil Madhavapeddy <anil@xxxxxxxxxx>
  • Date: Thu, 23 Mar 2017 18:12:03 +0000
  • Cc: "MirageOS-devel@xxxxxxxxxxxxxxxxxxxx" <MirageOS-devel@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Thu, 23 Mar 2017 18:12:09 +0000
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On 23 Mar 2017, at 18:05, Nadathur, Sundar <sundar.nadathur@xxxxxxxxx> wrote:
> Hi,
>    Is it correct to say that MirageOS executes as a single process on a 
> single vCPU only? IOW, a MirageOS unikernel cannot run on multiple vCPUs, 
> correct?

That's correct; there is no multicore support in the existing stable OCaml, and 
although it is possible to run multiple independent runtimes in a single 
unikernel, we have not implemented this.

> If so, are there any plans to add that feature?

Multicore OCaml is being actively developed by the OCaml Labs group in 
Cambridge. Check out recent activity here:

There should be a workable system this year sometime, and I imagine MirageOS 
support will follow that...

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