On Wed, Oct 20, 2010 at 6:28 PM, Michael Williams < michaelwilliam...@gmail.com> wrote:
> The iPod Touch is an iPhone without the phone. > > As far as the OS, from Wikipedia: > > iOS is derived from Mac OS X, with which it shares the > Darwin foundation, and is therefore a Unix-like operating system by > nature. > > You can ssh to it and do whatever (after you jailbreak it). > So presumably I can write an application that forks? > > > On Wed, Oct 20, 2010 at 8:39 AM, Don Dailey <dailey....@gmail.com> wrote: > > > > > > On Wed, Oct 20, 2010 at 7:33 AM, Michael Williams > > <michaelwilliam...@gmail.com> wrote: > >> > >> The iPhone has very impressive customer loyalty numbers (I'm on my > >> second one). Plus all of it's succes it despite it being AT&T-only in > >> the US. But you are probably right about raw computing power vs some > >> Android devices. > > > > I'm not a big phone person, I would prefer a PDA without a phone and I'm > > more into the computing end of things, not the phone end. So that > biases > > me a bit. And the fact that Android is Linux based is pretty cool too. > A > > serious OS in a handheld device. > > > > > > > >> > >> > >> On Wed, Oct 20, 2010 at 6:18 AM, Don Dailey <dailey....@gmail.com> > wrote: > >> > > >> > On Tue, Oct 19, 2010 at 10:44 PM, David Fotland > >> > <fotl...@smart-games.com> > >> > wrote: > >> >> > >> >> Mobile phones have very limited memory. On the iPhone I only have > >> >> about > >> >> 20 MB. This is a big limitation for UCT programs. > >> > > >> > But you need much less memory when you are running 6-7 times slower. > >> > I > >> > browsed around on the web and found people complaining that the > typical > >> > android device only leaves them with something like 150 MB free (which > >> > is 7x > >> > more than iphone) and that is probably not too bad given a 6x slower > >> > search > >> > (if that is what it is.) That is like having close to a gigabyte > free > >> > on a > >> > PC if you assume memory use is linear with speed. > >> > Everything I've read about the iphone indicates that it is a popular > toy > >> > but > >> > not very well suited to high performance computing (compared to other > >> > small > >> > devices.) For example I have read that it sucks memory and gets > worse > >> > over > >> > time and that it's not a real OS (to me "real" mean you can run tasks > in > >> > the > >> > background) etc. In the performance numbers for chess programs > that > >> > Ingo > >> > quoted the top program was on an ipaq not an iphone. > >> > I also saw that Android seems to be outselling iphone and probably the > >> > majority of phones will be Android based soon. > >> > Don > >> > > >> > > >> > > >> >> > >> >> > >> >> > >> >> David > >> >> > >> >> > >> >> > >> >> From: computer-go-boun...@dvandva.org > >> >> [mailto:computer-go-boun...@dvandva.org] On Behalf Of Don Dailey > >> >> Sent: Tuesday, October 19, 2010 9:48 AM > >> >> To: computer-go@dvandva.org > >> >> Subject: Re: [Computer-go] Candidates + Territory visualisation in > >> >> Valkyria > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> On Tue, Oct 19, 2010 at 12:28 PM, "Ingo Althöfer" > >> >> <3-hirn-ver...@gmx.de> > >> >> wrote: > >> >> > >> >> -------- Original-Nachricht -------- > >> >> > Datum: Tue, 19 Oct 2010 11:48:57 -0400 > >> >> > Von: Don Dailey <dailey....@gmail.com> > >> >> > ... > >> >> > >> >> > If we assume 400 ELO difference that is approximately equivalent to > >> >> > 6 or 7 doublings - does that sound about right for the mobile phone > >> >> > hardware you are comparing? > >> >> > >> >> I am not a hardware expert, so I do not know. > >> >> I took the data from the SSDF list at > >> >> http://ssdf.bosjo.net/list.htm There we have > >> >> 1 Deep Rybka 3 x64 2GB Q6600 2,4 GHz 3213 +25 -23 ... > >> >> .. > >> >> 35 Pocket Fritz 3 Hiarcs Ipaq 214 624 MHz 2722 +53 > -51... > >> >> > >> >> I'm not trying to refute you or claim you did anything wrong. > I'm > >> >> just suggesting a refinement to get a more accurate estimate of how > >> >> much we > >> >> can expect to lose going to the mobile phone platform. My refinement > >> >> is > >> >> more appropriate for what to expect when porting a GO program to the > >> >> mobile > >> >> platform. > >> >> > >> >> > >> >> > >> >> Trying to extrapolate what I know from your data and the "rybka > >> >> adjustment", you get this: As a general rule of thumb, if you port > >> >> your go > >> >> program to a mobile platform you will get the same performance that > you > >> >> would get if you played on the PC at a time control 6 or 7 times > >> >> faster. > >> >> So for example if you set your program to play a game in 3 minutes > on > >> >> the > >> >> Q6600 platform and other programs are playing 20 minute games, you > >> >> should > >> >> come relatively close to what you can expect on the mobile platform. > >> >> > >> >> > >> >> > >> >> Don > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> I think, this Hiarcs version was especially tuned for "limited" > >> >> hardware. > >> >> > >> >> > >> >> > >> >> They probably took the program that was easiest and most sensible to > >> >> port. > >> >> I believe Hiarcs is 32 bit program which will port to mobile phone > >> >> hardware with the least amount of ELO loss. A 64 bit program would > >> >> take an > >> >> additional hit in performance being ported to 32 bit hardware. > >> >> > >> >> > >> >> > >> >> > >> >> > >> >> Ingo > >> >> > >> >> PS: The reason to mention go programs for mobiles was that Valkyria's > >> >> graphic seems ideally suited for small screens. > >> >> > >> >> > >> >> -- > >> >> GRATIS! Movie-FLAT mit über 300 Videos. > >> >> Jetzt freischalten unter http://portal.gmx.net/de/go/maxdome > >> >> > >> >> _______________________________________________ > >> >> Computer-go mailing list > >> >> Computer-go@dvandva.org > >> >> http://dvandva.org/cgi-bin/mailman/listinfo/computer-go > >> >> > >> >> > >> >> > >> >> _______________________________________________ > >> >> Computer-go mailing list > >> >> Computer-go@dvandva.org > >> >> http://dvandva.org/cgi-bin/mailman/listinfo/computer-go > >> > > >> > > >> > _______________________________________________ > >> > Computer-go mailing list > >> > Computer-go@dvandva.org > >> > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go > >> > > >> _______________________________________________ > >> Computer-go mailing list > >> Computer-go@dvandva.org > >> http://dvandva.org/cgi-bin/mailman/listinfo/computer-go > > > > > > _______________________________________________ > > Computer-go mailing list > > Computer-go@dvandva.org > > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go > > > _______________________________________________ > Computer-go mailing list > Computer-go@dvandva.org > http://dvandva.org/cgi-bin/mailman/listinfo/computer-go >
_______________________________________________ Computer-go mailing list Computer-go@dvandva.org http://dvandva.org/cgi-bin/mailman/listinfo/computer-go
