Sorry... you are right, in the hurry, I confused up. I did use the exhaustive for the 32bit and the 64bit and not the NON-exhaustive. So the results are comparable.
Regards, dubi --- In amibroker@yahoogroups.com, Tomasz Janeczko <gro...@...> wrote: > > Hello, > > Exhaustive (i.e. full grid) optimization is the one that is default and > built-in in AmiBroker, does not require any plugin. > > Only NON-exhaustive methods require any plugins. > Regarding non-exhaustive optimization, 64-bit version already has it - CMAE. > > Best regards, > Tomasz Janeczko > amibroker.com > > On 2010-07-08 20:04, dubi1974 wrote: > > Hi Mike, > > > > Same machine, same optimization. > > I am using Windows 7x64bit. CPU is Intel i7 920. 6GB DDRAM3. > > And I compared the same optimization of a formula on Amibroker 32bit and > > Amibroker 64bit. > > > > Regarding exhaustive optimizer. There is not exhaustive optimizer for > > 64bit. That's why I did neither use it for the 32bit and the 64bit. That's > > why I asked Tomasz if a exhaustive optimizer 64bit plugin is planed. > > > > Regards, dubi > > > > > > --- In amibroker@yahoogroups.com, "Mike"<sfclimbers@> wrote: > >> Did you perform your test using an exhaustive optimization on identical > >> machines (or better yet, the same machine), differing only by 32 bit > >> windows vs. 64 bit windows? If not, your test is comparing apples to > >> oranges. > >> > >> 1. If using different machines, the hardware will play a very large role > >> in the performance. My high end 64bit server takes 20 seconds to compute > >> what my low end 32bit laptop does in 8 minutes. I can assure you it has > >> very little to do with the operating system! > >> > >> 2. If using a non exhaustive optimizer, the built-in randomness of the > >> optimizer can result in a different number of actual backtest operations. > >> An optimization will take some period of time to converge. Immediately > >> running the same optimization again on the same machine may converge > >> sooner or take longer. The timing is not fixed, as it would be for an > >> exhaustive optimization that will always perform exactly the same number > >> of backtests. > >> > >> Mike > >> > >> --- In amibroker@yahoogroups.com, "dubi1974"<gonzales74@> wrote: > >>> Hi, > >>> > >>> I tested it and compared an normal optimization process between 32bit and > >>> 64 bit. On the same formula Amibroker 32-bit took more than 8 hours for > >>> the optimization process, and Amibroker 64-bit just 4h:50min. > >>> > >>> So my experience shows me, that it's much faster. My question is, could > >>> you Tomasz provide us the optimizer.dll in 64-bit? Like cmae or tribes? > >>> For testing purpose. > >>> > >>> Many thanks. > >>> > >>> Regards, dubi > >>> > >>> --- In amibroker@yahoogroups.com, Tomasz Janeczko<groups@> wrote: > >>>> Hello, > >>>> > >>>> AmiBroker 5.30.1 64-bit edition (experimental) is now available for > >>>> download from: > >>>> http://www.amibroker.com/x64/ > >>>> > >>>> This is experimental version *only* for people running 64-bit Windows > >>>> and wanting to utilise *more* than 4GB of memory. 64-bit version does > >>>> NOT offer anything more, just ability to access more memory. It can > >>>> (and should) be installed into *separate* folder, so it does not > >>>> overwrite 32-bit edition (if installed). This version includes only 2 > >>>> plugins: CMAE and IB (interactive brokers) plugin. 64-bit version of > >>>> IQFeed plugin is in the works > >>>> and it will arrive later. > >>>> > >>>> Note that regular users, even running 64-bit Windows should rather run > >>>> regular, 32-bit version of AmiBroker as it offers more compatibility and > >>>> was tested on way more installations. > >>>> > >>>> Please note that 64-bit version has BETA/experimental status and in case > >>>> of problems you should use 32-bit version instead. > >>>> > >>>> Best regards, > >>>> Tomasz Janeczko > >>>> amibroker.com > >>>> > > > > > > > > ------------------------------------ > > > > **** IMPORTANT PLEASE READ **** > > This group is for the discussion between users only. > > This is *NOT* technical support channel. > > > > TO GET TECHNICAL SUPPORT send an e-mail directly to > > SUPPORT {at} amibroker.com > > > > TO SUBMIT SUGGESTIONS please use FEEDBACK CENTER at > > http://www.amibroker.com/feedback/ > > (submissions sent via other channels won't be considered) > > > > For NEW RELEASE ANNOUNCEMENTS and other news always check DEVLOG: > > http://www.amibroker.com/devlog/ > > > > Yahoo! Groups Links > > > > > > > > >
