No What? iOS is Unix (mach kernel with BSD outside), just like Mac OS. The application environment is very restricted because they want to ensure that all the apps play nice with each other.
David > -----Original Message----- > From: computer-go-boun...@dvandva.org [mailto:computer-go- > boun...@dvandva.org] On Behalf Of Michael Williams > Sent: Wednesday, October 20, 2010 9:31 PM > To: computer-go@dvandva.org > Subject: Re: [Computer-go] Candidates + Territory visualisation in Valkyria > > No. > > http://stackoverflow.com/questions/3619252/fork-on-iphone > > > On Wed, Oct 20, 2010 at 9:51 PM, Don Dailey <dailey....@gmail.com> wrote: > > > > > > 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 > > > _______________________________________________ > 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
