- CPUSpeedupParticipantOctober 9, 2020 at 6:20 amPost count: 8
Is there anything I can read about multicores? I specific was wondering if there’s any way they communicate with eachother?
Specifically I was wondering about consumer/producer threads. IIRC the mills don’t do more than one thread on a core because it’s less efficient? Anyway I’d want a producer thread to write pointer(s) to a cache line (64bytes?) then say hey this is up for grabs to any core who wants this. Or maybe assign it to a core which then can query if that memory address is owned by it without causing memory contention or copying memory that isn’t ready
- This topic was modified 1 year, 12 months ago by CPUSpeedup.
- FindecanorParticipantOctober 10, 2020 at 1:23 pmPost count: 19
Earlier posts about some of the things you mention:
“We don’t do SMT.”.
I think it has also been said as an answer at a Q&A session after a talk (?) that all multi-core Mills will be single-chip designs sharing the same cache.
Synchronisation primitives (such as those used for buffers for producer/consumer threads) are notoriously difficult to make right. As on any platform, those would be best left to the guys writing standard libraries I think.
A little has been said about synchronisation on The Mill though:
multi-cpu memory model
How to schedule communicating threads and when to move threads between cores is a question for operating system designers, I think. I would be surprised if that is significantly different on the Mill than on any other architecture.
- This reply was modified 1 year, 12 months ago by Findecanor.
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