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World Community Grid Forums
Category: Community
Forum: Hardware Chat Room
Thread: Raspberry Pi 4 8GB out! $75 (May 2020) |
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Thread Status: Active Total posts in this thread: 26
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hchc
Veteran Cruncher USA Joined: Aug 15, 2006 Post Count: 865 Status: Offline Project Badges: 
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Great timing.
----------------------------------------Also notable is Raspbian (at least the OS image that the Foundation releases) has been renamed to Raspberry Pi OS. A 64-bit build of the OS is also in beta and works on existing 3b, 3b+, and 4b devices.
[Edit 2 times, last edit by hchc at May 28, 2020 11:11:53 AM] |
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poppinfresh99
Cruncher Joined: Feb 29, 2020 Post Count: 49 Status: Offline Project Badges:
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Oh neat! I hope OpenPandemics starts working on 64-bit Linux on ARM soon.
----------------------------------------I just discovered that you can now get the 2-GB RAM model for $35. To get everything you need to run WCG on lots of Pi's, the following links should be useful... (1) Pi including heat sinks and power supply for $50: https://www.canakit.com/raspberry-pi-4-basic-kit.html (2) a ton of class-10 microSD cards for cheap: https://www.amazon.com/Micro-Negro-v%C3%ADdeo-Full-paquete/dp/B07RPVH4QQ/ Edit: These links are good in the US at least. Another edit: looks like you can now run WCG on 64-bit Linux on ARM with a little hack... https://www.worldcommunitygrid.org/forums/wcg/viewthread_thread,42424_offset,30 [Edit 2 times, last edit by poppinfresh99 at Jun 1, 2020 6:57:34 PM] |
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BQL_FFM
Cruncher Germany Joined: Jun 16, 2016 Post Count: 15 Status: Offline Project Badges:
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32bit Pi OS installed for Open Pandemics. Four Pi 3B, two Pi 2B and one Pi Zero. I ordered a Pi 4B 2GB to compare. Multi USB power charger. It's fun.
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poppinfresh99
Cruncher Joined: Feb 29, 2020 Post Count: 49 Status: Offline Project Badges:
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For this benchmark, the 4B has twice the gigaFLOPS/watt as the 3B, which was already quite energy efficient!
http://web.eece.maine.edu/~vweaver/group/green_machines.html ARM is incredible! |
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hwierzbicki
Advanced Cruncher Joined: May 1, 2016 Post Count: 55 Status: Offline Project Badges:
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For this benchmark, the 4B has twice the gigaFLOPS/watt as the 3B, which was already quite energy efficient! http://web.eece.maine.edu/~vweaver/group/green_machines.html ARM is incredible! That is pretty insane, especially considering the chip is now 5 years old. Looking forward to more SBCs with A7x SOCs in the future. For comparison (though I know this is kinda apples to oranges): 3900X 142W at full load, 130GFLOPS .  |
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poppinfresh99
Cruncher Joined: Feb 29, 2020 Post Count: 49 Status: Offline Project Badges:
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Looks like the Raspberry Pi has always used 40nm transistors, but the Pi 4B is the first Pi to use 28nm.
https://cdn.shopify.com/s/files/1/1560/1473/files/Inside_Raspberry_Pi_4.pdf I can only imagine how efficient the Pi 4B's Cortex-A72 would be at 16 nm (its min. feature size). https://en.wikipedia.org/wiki/ARM_Cortex-A72 |
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hchc
Veteran Cruncher USA Joined: Aug 15, 2006 Post Count: 865 Status: Offline Project Badges:
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Whoa, poppin. I'd never checked the Wikipedia page for the A72. But apparently it's already been superseded by many newer generations of SoC.
----------------------------------------https://en.wikipedia.org/wiki/ARM_Cortex-A73 https://en.wikipedia.org/wiki/ARM_Cortex-A75 https://en.wikipedia.org/wiki/ARM_Cortex-A76 https://en.wikipedia.org/wiki/ARM_Cortex-A77 https://en.wikipedia.org/wiki/ARM_Cortex-A78 Can't wait for the Raspberry Pi 5 series and any other SBC maker (e.g. Odroid) to use the latest and greatest. We're probably less than 10 years away from the point that a smartphone can also dock when at home or work and serve as a desktop PC replacement for most people for most use cases. Just needs a docking station (perhaps 60 GHz wireless like 802.11ay) or USB4/Thunderbolt 3.
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hwierzbicki
Advanced Cruncher Joined: May 1, 2016 Post Count: 55 Status: Offline Project Badges:
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Whoa, poppin. I'd never checked the Wikipedia page for the A72. But apparently it's already been superseded by many newer generations of SoC. Yep, like I said above, the A72 is 5 years old. The ODroid N2 is the only mainstream SBC I know of that is currently using a more recent version of the A7x series, in the form of the A73 (at 12nm). I doubt SBCs will ever really "catch up", it just gets too expensive to manufacturer the lastest and greatest. We're probably less than 10 years away from the point that a smartphone can also dock when at home or work and serve as a desktop PC replacement for most people for most use cases. Just needs a docking station (perhaps 60 GHz wireless like 802.11ay) or USB4/Thunderbolt 3. Check out Samsung DeX! |
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hchc
Veteran Cruncher USA Joined: Aug 15, 2006 Post Count: 865 Status: Offline Project Badges:
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According to this forum post which links to the official blog post's comments thread, the Compute Module 4 should be released some time in 2020. I hope the CM4 turns out to be a cheaper product than buying individual Pi 4Bs for those of us considering putting together a cluster for crunching purposes.
----------------------------------------Edited to Add: This forum post states that the Pi 5 will be "years away" but that "loads of other exciting stuff" will be out in the interim.
[Edit 1 times, last edit by hchc at Jun 8, 2020 1:08:50 PM] |
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