That is nonsense - LiIon and LiPol batteries have inner circuitry looking for acceptble levels of current. i spend with my e60 whole 2 years in plug...
2009/10/27, [email protected] <[email protected]>: > > Actually, not for many people. Many phone instructions say not to over > charge the battery as that reduces the useful life of the batteries. I > generally plug it into the car for the trip in to work on Mondays, and > Wednesdays, and the trip home on Fridays. This is about 3 hours of plugged > in per week. My wife plugs it into the wall at night only after it has > started beeping at her about low battery. This generally happens about > once a week, or about 8 hours of plugged in time per week. > > CPU intensive tasks on a phone are just about hopeless. There is no FPU, > so multiply the crunch times for FPU intensive projects by at least one > thousand. When the phone is not in use, the CPU scales back by a large > speed factor - often around 100. The CPU speed is not that great in any > case, 500 MHz or slower for most phones. So you should expect a slowdown > of around 10000 or more for FPU intensive tasks. > > For Integer intensive tasks, the slowdown is not nearly as dramatic - > figure that it is going to be about the speed of an old Pentium, and you > should be about right. > > Some of the non-CPU intensive tasks are much more interesting. These could > run in the background (if developed as a native application rather than > Java), and not eat the phone battery or overheat the phone. However, the > warning here is the ones that are network intensive may not be a good fit > as many people have to pay per byte for phone data connectivity. The > network intensive tasks would also keep the radio on all of the time - > which would eat batteries quickly. > > > jm7 > > > > Petr Hájek > <hajek.p...@gmail > .com> To > Sent by: [email protected] > <boinc_dev-bounce cc > [email protected] > u> Subject > Re: [boinc_dev] BOINC for Mobile > Phones - please test on your Java > > 10/27/2009 01:23 phone > PM > > > > > > > > > > > Absolutely, however OVERNIGHT almost everybody has phone in charger! So it > means 8 h of crunching? > > 2009/10/27, [email protected] <[email protected]>: > > > > They only draw that little because on average the CPU is clocked back to > a > > very low speed. At full clock they draw much more power than when idled > > back. > > > > jm7 > > > > > > > > > > Petr Hájek > > <hajek.p...@gmail > > > > .com> > To > > Sent by: [email protected] > > > > <boinc_dev-bounce > cc > > [email protected] > > u> > Subject > > Re: [boinc_dev] BOINC for Mobile > > Phones - please test on your Java > > > > 10/27/2009 01:06 phone > > PM > > > > > > > > > > > > > > > > > > > > > > AS far as I know there is NO protection simply because it is not needed. > > > > Mobile CPUs usually eats cca tens / hundreds of mAh which is still less > > that > > even Intel Atom for netbooks needs. > > > > 2009/10/27, Brandon Kuschel <[email protected]>: > > > > > > BlackBerry Curve 8330 (tested 3 times for both) > > > > > > Prime test: 99264 ms, 124606 ms, 115893 ms > > > DNA test: 16620 ms, 21718 ms, 20096 ms > > > > > > How quickly would heat become a problem with the CPU at 100%? Do the > > > processors in phones have thermal protection like computer processors? > > > > > > 2009/10/26 Petr Hájek <[email protected]> > > > > > >> Greetings everybody, > > >> after several weeks of thinking and days of hearing "Are you insane? > It > > is > > >> not possible!" I decided to create demo of mobile version of BOINC - > > i.e. > > >> BOINC for Mobile Java - J2ME / MIDP2.0+. And here it is for test. For > > >> start > > >> I have one very important thing - this is JUST A DEMO, NOT working > > >> software, > > >> so it now neither supports actuall projects, nor it operates with your > > >> BOINC > > >> accounts! It just presents idea of mobile BOINC. > > >> > > >> Program currently has 2 tests: Searching for highest prime number up > to > > >> 10.000 + DNA Comparator comparing random DNA amino acids with another > > >> piece > > >> of random DNA. For example it looks for "TACGT" or "AAGCT" and then > > tells > > >> how many times is sub-DNA in whole DNA chain. Especially DNA > Comparator > > >> may > > >> seem slow on start. That is because of the random generation of DNA, > so > > >> please be patient. Working with DNA is faster than its generation - > you > > >> will > > >> notice growing blue bar indicating progress. Yet some info for MBOINC: > > 1. > > >> DO > > >> NOT hit the Start button repeatedly, because program starts next long > > >> counting right after finishing this one. 2. Unit can not be cancelled, > > so > > >> you may return to Main Menu only after completation of whole unit. > > >> > > >> If you like idea, you may post your score with both tests. With my > Nokia > > >> E60 > > >> (220 MHz CPU) I got 215175 miliseconds for primes and 344278 > miliseconds > > >> for > > >> DNA Comparator. This btw. means even my ONLY phone is capable of > > comparing > > >> cca 2.500.000 amino acids of DNA per day! Imagine what could be done > > with > > >> 1.500.000.000 of phones on world today running with speed of 50-400 > MHz > > >> usually! That is almost 75.000.000.000 - 600.000.000.000 MHz each day > > >> wasted > > >> without any yield for mankind... > > >> > > >> I am looking for ANY help anybody wish and could provide - primarily > of > > >> course money donation, so I may work on MBOINC as full-time > programmer, > > >> people intereted in developing of mobile versions of projects etc. But > > of > > >> course - I welcome also other ideas, proposals and cooperation offers! > > >> > > >> Even if MBOINC return only ONE unit of completed science or medical > > work, > > >> I > > >> would consider its existence success... > > >> > > >> You may download "MBOINC.zip" with JAR and JAD files just here: " > > >> http://java.wmhelp.cz/Downloads/MBOINC.zip";. > > >> > > >> Sincerely > > >> Musketeer > > >> Czech Republic > > >> _______________________________________________ > > >> boinc_dev mailing list > > >> [email protected] > > >> http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev > > >> To unsubscribe, visit the above URL and > > >> (near bottom of page) enter your email address. > > >> > > > > > > > > > > > > -- > > S Pozdravem > > Petr Hájek > > _______________________________________________ > > boinc_dev mailing list > > [email protected] > > http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev > > To unsubscribe, visit the above URL and > > (near bottom of page) enter your email address. > > > > > > > -- > S Pozdravem > Petr Hájek > _______________________________________________ > boinc_dev mailing list > [email protected] > http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev > To unsubscribe, visit the above URL and > (near bottom of page) enter your email address. > > -- S Pozdravem Petr Hájek _______________________________________________ boinc_dev mailing list [email protected] http://lists.ssl.berkeley.edu/mailman/listinfo/boinc_dev To unsubscribe, visit the above URL and (near bottom of page) enter your email address.
