[PD] [coll] bug

Derek Kwan derek.x.kwan at gmail.com
Mon Jan 30 04:49:56 CET 2017


On Jan 29, Alexandre Torres Porres wrote:
> yeah, derek was talking about our current development, where we screwed up
> with the order of bangs in the unthreaded - but fixed now.
> 
> Derek, would you care to elaborate why you think unthreaded should be the
> default?
> 

I had some concerns with pthreads and Windows compat but it looks like
those aren't issues (? I don't have much experience with Windows dev) so
I think I would be fine either way.

> And is this threaded stuff only for multi threaded processors? How does
> this work on a single core rasbperry pi or something like that?
> 

It looks like threading works fine on single core, at least according to
my perusing Stack Overflow, it's just that running threads will be
paused for other threads.
(source: http://stackoverflow.com/questions/12997628/creating-threads-on-a-single-core-processor ).  So maybe something similar to unthreaded? And even then, only the Model As, first model Bs, 1st compute, and zero are single-core, all the rest are quad core. 

One issue that might be of concern is backwards compat with old versions
of Cyclone. Otherwise I'm fine with threaded as the default.

Derek






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