Re: current development

[Joseph Heled]

Like I said, installed from the standard Ubuntu rep.

Yes, info says multithread support. It says SSE/SSE2 support. What
about SSE3/4 etc, or they confer no real improvement over SSE2?

-Joseph

On Wed, 4 Dec 2019 at 09:58, Øystein Schønning-Johansen
<address@hidden> wrote:
>
> Did you compile from source or install a binary from a packet manager?
> Does it say multi-thread support in: Help->About->Build Info ?
>
> -Øystein
>
> On Tue, Dec 3, 2019 at 9:46 PM Joseph Heled <address@hidden> wrote:
>>
>> All I know is that I installed gnubg from the repository (GNU
>> Backgammon 1.06.002) and the rollouts speed seemed terrible.
>>
>> Do I need to do something in the GUI to enable multi-threading? (and I
>> hope that by multi-threading we are talking about multi-core, not just
>> threading, which does not help)
>>
>> -Joseph
>>
>> On Wed, 4 Dec 2019 at 09:38, Øystein Schønning-Johansen
>> <address@hidden> wrote:
>> >
>> > On Tue, Dec 3, 2019 at 7:37 PM Joseph Heled <address@hidden> wrote:
>> >>
>> >> I am out of the loop too, but speeding up rollouts (i.e. using modern
>> >> multicores) seems like a worthy improvement.
>> >
>> >
>> > Isn't that done already?
>> >
>> > I think the code is multithreaded using gthreads from glib. I think it was 
>> > done by Michael (and Philippe) some years ago. I haven't browsed the code 
>> > that much in detail lately, so I'm not sure what it's threading on. Do you 
>> > see an obvious improvement over the current threaded code?
>> >
>> > -Øystein
>> >
>> >