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Number crunching :
Smartphone Crunching (Reprise)
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Author | Message |
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shizaru Send message Joined: 14 Jun 04 Posts: 1130 Credit: 1,967,904 RAC: 0 |
I remember one nugget of info in the original thread, and it was Raistmer saying that as long as (or especially if?) the chips become OpenCL capable it'll make more sense. To that I remember replying that "Bruce Wayne" Tegra (Tegra 4) was rumored to be OpenCL. For some reason the Wikipedia page I had linked to has no mention of OpenCL for Tegra 4 anymore, but the grapevine is buzzing: " ...the high-end version of Tegra 4 will bring 72 cores in the GeForce GPU, without disclosing if the cores in question support CUDA or not. Remember that two years ago, Nvidia mentioned that their T40-class hardware will be fully compliant with the OpenCL and CUDA, and based on the Kepler architecture, which wasn't even announced at the time." http://www.brightsideofnews.com/news/2012/12/18/nvidias-tegra-4-specs-leak.aspx Will 2013 be the year smartphone crunching takes off? I guess we'll know in about 10 days:) But until then, Happy New Year to you all! |
James Sotherden Send message Joined: 16 May 99 Posts: 10436 Credit: 110,373,059 RAC: 54 |
I didnt have a smart phone for that old thread but I do now. I still think it will be just a novelty. I left a app running by accident when i put the phone on the charger. It got hot as heck and never did charge the battery. Until the processors get a lot better and battery life is improved I dont see large scale crunching. And I would not do any on a phone anyway. Thats not why I have smart phone. [/quote] Old James |
rob smith Send message Joined: 7 Mar 03 Posts: 22202 Credit: 416,307,556 RAC: 380 |
While smartphone crunching is technically possible I doubt that it is a practical proposition due to the amount of processing required to cope with a work unit and the limited battery life of a smartphone. Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Jord Send message Joined: 9 Jun 99 Posts: 15184 Credit: 4,362,181 RAC: 3 |
LOL, yeah. When I see how quickly the battery of my Samsung gets zapped by just playing a 3D Tetris clone, or Angry Birds, I don't even want to crunch anything on it. 20 minutes of game play and a fully charged battery --coming off the USB wire-- is at 55%. |
ML1 Send message Joined: 25 Nov 01 Posts: 20289 Credit: 7,508,002 RAC: 20 |
...but will not boinc on mobile devices be ideal for such as Quake Catcher? Happy cool crunchin', Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
rob smith Send message Joined: 7 Mar 03 Posts: 22202 Credit: 416,307,556 RAC: 380 |
Only if you aren't jogging at the time... Seriously smartphones sitting on desks not in bag/pockets/cars might be a way of capturing data on larger quakes. But if you didn't feel it,it wasn't a quake... Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
shizaru Send message Joined: 14 Jun 04 Posts: 1130 Credit: 1,967,904 RAC: 0 |
For the forseeable future it's pretty much a given that when smartphone/tablet crunching takes off, it'll only make sense to do so when charging the device. My only gripe with this (theoretical ATM) scenario is that these devices have integrated batteries (to help make the devices slimmer I guess). And batteries dislike heat... I don't know if I'd be willing to fry my battery for the sake of a little bonus crunching. However if I had a device that made it semi-easy to pull out the battery (like my current dumb-phone) I'd probably make the extra effort. A retired smartphone/tablet I'd probably leave plugged in and crunching 24/7 but that scenario is 4-5 years away, for me at least. PS @ML1 I wonder if Quake Catcher is doable on such a highly mobile device. If it is I'd most definately run it, especially in Greece. |
TRuEQ & TuVaLu Send message Joined: 4 Oct 99 Posts: 505 Credit: 69,523,653 RAC: 10 |
I don't know if they do crunch on smartphone here... I have a 12year old Nokia.... Arm processor crunching at Oproject@Home, Sub-project ALX http://oproject.info/apps.php |
David S Send message Joined: 4 Oct 99 Posts: 18352 Credit: 27,761,924 RAC: 12 |
LOL, yeah. When I see how quickly the battery of my Samsung gets zapped by just playing a 3D Tetris clone, or Angry Birds, I don't even want to crunch anything on it. 20 minutes of game play and a fully charged battery --coming off the USB wire-- is at 55%. Bear in mind that a computer's USB port only provides a maximum of 500mA. If you have a wall charger for the phone, it's probably capable of supplying more current and will keep the battery charged. If the phone didn't come with one, some bluetooth devices do. A car charger also supplies enough juice. As for heat, my phone has been overheating for almost a year just while doing things it's supposed to be able to do, sometimes even with its display off. If really necessary, I either blow cool air at it or take the back off and *carefully* dab water all over the battery. It's amazing how quickly it evaporates. Removing the battery to protect it from the heat is not an option; the phone shuts off without it, even when plugged in. David Sitting on my butt while others boldly go, Waiting for a message from a small furry creature from Alpha Centauri. |
Jord Send message Joined: 9 Jun 99 Posts: 15184 Credit: 4,362,181 RAC: 3 |
Bear in mind that a computer's USB port only provides a maximum of 500mA. If you have a wall charger for the phone, it's probably capable of supplying more current and will keep the battery charged. I don't play the games on the phone when it's plugged in, I play them when I'm away from home, or sitting on the toilet... Then the battery is zapped pretty quickly. Mind, without the gaming, and just using it for phoning or having it on standby, the battery lasts pretty long. Some of my other games also zap the battery a lot less than the 3D ones. |
ML1 Send message Joined: 25 Nov 01 Posts: 20289 Credit: 7,508,002 RAC: 20 |
... I play them when I'm away from home, or ... Oh no!!! Intense fire-fight, a Zaphod three fingered click required to save the game and... Kersplosh! Fizz crackle gurgle gurgle... :-( Is that why there must be no mains outlets or mains devices within arms reach...? ;-) Keep searchin', Martin See new freedom: Mageia Linux Take a look for yourself: Linux Format The Future is what We all make IT (GPLv3) |
Bernie Vine Send message Joined: 26 May 99 Posts: 9954 Credit: 103,452,613 RAC: 328 |
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HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
The client already exists for Andoid: NativeBOINC. I'm not sure what projects are being run, but the stats they have on the site show some devices with a higher RAC than most of my machines. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
ivan Send message Joined: 5 Mar 01 Posts: 783 Credit: 348,560,338 RAC: 223 |
The client already exists for Andoid: NativeBOINC. I'm not sure what projects are being run, but the stats they have on the site show some devices with a higher RAC than most of my machines. Interesting -- I have temporary access to an ARM cluster... |
Link Send message Joined: 18 Sep 03 Posts: 834 Credit: 1,807,369 RAC: 0 |
The client already exists for Andoid: NativeBOINC. I'm not sure what projects are being run, but the stats they have on the site show some devices with a higher RAC than most of my machines. Milkyway for example, see this thread. PrimeGrid runs fine AFAIK and WUProp runs also on Android and that gives us a short list of projects that run on ARM/Android. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
I'm running MilkyWay@home on G-tablet, WUprops and SubsetSum on Samsung mini phone. NativeBOINC client is very nice and convenient BOINC implementation for Android. And fully functional already. SETI apps news We're not gonna fight them. We're gonna transcend them. |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
The client already exists for Andoid: NativeBOINC. I'm not sure what projects are being run, but the stats they have on the site show some devices with a higher RAC than most of my machines. I ran some Milkyway & Primegrid on my phone when I first tested the client a while back. I didn't have any issues with my old MyTouch 3G Slide. Looking further into that stats list the project SubsetSum@Home looks to be the one cranking out the highest RAC for these devices, or the users are dedicating most of their time to that project for these devices. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
evilspoons Send message Joined: 30 Jul 99 Posts: 50 Credit: 8,469,307 RAC: 4 |
Bear in mind that a computer's USB port only provides a maximum of 500mA. If you have a wall charger for the phone, it's probably capable of supplying more current... Note that by its specification USB 3.0 ports can supply up to 900 mA when transferring data, and 1.5 A when in "battery charge" mode. |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
Bear in mind that a computer's USB port only provides a maximum of 500mA. If you have a wall charger for the phone, it's probably capable of supplying more current... The current battery charge specification states 5A as the maximum. However the specification sheets for Molex's micro USB connectors state they have a maximum capacity of 1.8A. Which is also the maximum capacity stated in the old Battery Charging Specification from '07. SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
shizaru Send message Joined: 14 Jun 04 Posts: 1130 Credit: 1,967,904 RAC: 0 |
Meh... Sorry guys, false alarm: "The GPU is non-unified. This almost certainly excludes OpenCL..." -Ryan Smith (AnandTech writer, response from comments section) http://www.anandtech.com/show/6550/more-details-on-nvidias-tegra-4-i500-5th-core-is-a15-28nm-hpm-ue-category-3-lte PS. Welcome back Mr Spoons:) |
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