[Pachi] Regression ?
sthalik at misaki.pl
Fri Apr 15 12:43:39 CEST 2016
On 2016-04-10 03:37, Petr Baudis wrote:
> I will try with four, but that's as high I can go for now...
> sthalik's struct uct_node layout changes could have had some unforeseen
> threading consequences wrt. lockless stats updates, but that should have
> happenned *before* the regression you reported.
In Message-ID: <57011BF6.6030208 at free.fr> lemonsqueeze said that 32e02d4
It could theoretically have problems with same (aligned) word
rw-accessed by multiple threads without synchronization, that needs stop
and resync of all CPUs. But that only happens with races, which are the
I haven't dug deep into pachi's logic but the lockless architecture
looks quite sound so far.
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