On Tue, Oct 7, 2014 at 1:32 AM,
Yes, this approach to a parallel GHC would only work on 64-bit machines. The idea is, I guess, that we're not going to see a massive demand for parallel GHC running on multi-core 32-bit systems. In other words; 32-bit systems wouldn't get a parallel GHC.
Let me make sure I'm understanding this correctly: in this particular proposed solution, the side effect would be that we no longer have a capable 32bit runtime which supports multicore parallelism? Sorry, but I'm afraid this approach is pretty much unacceptable IMO, for precisely the reason outlined in your last sentence. 32bit systems are surprisingly commen. I have several multicore 32bit ARMv7 machines on my desk right now, for example. And there are a lot more of those floating around than you might think. If that's the 'cure', I think I (and other users) would consider it far worse than the disease.
Regards, Philip
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