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Category: Active Research
Forum: OpenPandemics - COVID-19 Project
Thread: Crunching on cloud |
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Thread Status: Active Total posts in this thread: 23
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jackielan2000
Advanced Cruncher China Joined: Dec 31, 2005 Post Count: 115 Status: Offline Project Badges: 
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Yesterday, I registered an Amazon AWS account and created an instance on cloud (free for 1yr though
---------------------------------------- ). I was beyond happy seeing the first OPN WU run so fast it would take just 3hrs to finish (est. time). Now I'm astonished the WU is still running, at 73%, after 9hrs. Looking at the progress %, it changes even slower than my old P4. I think they use very powerful server for cloud computing, right? Is it because it's CLOUD, the CPU is actually doing something else and push BOINC back because BOINC is always set to lowest priority? But it's 2am EST in the US (server location that I chose is Ohio), the workload should be low by now. Anyone has experience on cloud cruching, please tell me what's going on. Thanks.
AMD Athlon64X2 5400+ 2.8G | 2c
MT6735 1.4G | 4c Helio G85 1.8G |8c Allwinner H2 1G | 4c SnapDragon 810 2.1G | 8c SnapDragon 801 2.5G | 4c |
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Falconet
Master Cruncher Portugal Joined: Mar 9, 2009 Post Count: 3315 Status: Offline Project Badges: 
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Their free instance is extremely slow. That's why you are seeing those runtimes.
----------------------------------------I had it for maybe a week till I decided it wasn't worth it. (In early 2019)  - AMD Ryzen 5 1600AF 6C/12T 3.2 GHz - 85W - AMD Ryzen 5 2500U 4C/8T 2.0 GHz - 28W - AMD Ryzen 7 7730U 8C/16T 3.0 GHz [Edit 1 times, last edit by Falconet at Jun 2, 2020 9:08:40 AM] |
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Lenciviona
Cruncher Canada Joined: Apr 18, 2020 Post Count: 3 Status: Offline Project Badges: 
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It's actually a little more complicated. I run a number of lightly loaded web sites off one EC2 T2 micro instance (The T types are the only free ones). Works fine because you get CPU credits that let it work for a short time as if you had the full CPU.
But under heavy workloads your baseline CPU available is like only 10%. The reference for this is https://docs.aws.amazon.com/AWSEC2/latest/Use...html#baseline_performance but you might need to Google some other stuff to help understand it. But I agree with Falconet that it's probably not worth it. I have an old cheap Android tablet I have no use for, it manages to complete work units in just over 30 hours. So now you have AWS set up you could just let it run and see how it goes. If it can complete WUs in the time allotted, it's still being useful, just not what you expected. |
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CurtisNewton
Cruncher Joined: Feb 24, 2008 Post Count: 25 Status: Offline Project Badges: 
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As Lenciviona already mentioned, the T instances are throttled. They have a credit system, when the CPU is idle it creates credits, when it is not idle id comsumes credits.
As observed the, max. mean performance is about 10%. Full power can only be archived for short peaks (guess it is called burst power). If you want number crunching with constant CPU power you will need C instances, e.g. C4 or C5, and of course those are not free. However, you can save some money if you omit the 24/7 on demand option (look for "spot" instances). |
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jackielan2000
Advanced Cruncher China Joined: Dec 31, 2005 Post Count: 115 Status: Offline Project Badges:
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It's actually a little more complicated. I run a number of lightly loaded web sites off one EC2 T2 micro instance (The T types are the only free ones). Works fine because you get CPU credits that let it work for a short time as if you had the full CPU. But under heavy workloads your baseline CPU available is like only 10%. The reference for this is https://docs.aws.amazon.com/AWSEC2/latest/Use...html#baseline_performance but you might need to Google some other stuff to help understand it. But I agree with Falconet that it's probably not worth it. I have an old cheap Android tablet I have no use for, it manages to complete work units in just over 30 hours. So now you have AWS set up you could just let it run and see how it goes. If it can complete WUs in the time allotted, it's still being useful, just not what you expected. Thanks all of you, Lenciviona, Falconet and CurtisNewton. I do have a T2.micro instance. Just checked the first WU finished after 13hrs of crunching. I actually reduced the CPU time to 75% after posting the message here. Well, 13hrs is not that bad, almost like my P4  . Consider it's free of charge, I think it's still worth the try. Thanks again to Lenciviona for the reference link. It's my first attemp to cloud computing, a lot to learn.
AMD Athlon64X2 5400+ 2.8G | 2c
MT6735 1.4G | 4c Helio G85 1.8G |8c Allwinner H2 1G | 4c SnapDragon 810 2.1G | 8c SnapDragon 801 2.5G | 4c |
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Falconet
Master Cruncher Portugal Joined: Mar 9, 2009 Post Count: 3315 Status: Offline Project Badges:
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Google Cloud has 300 dollars in free credit to use.
----------------------------------------You can use preemptive (spot) instances too for a much lower price. - AMD Ryzen 5 1600AF 6C/12T 3.2 GHz - 85W - AMD Ryzen 5 2500U 4C/8T 2.0 GHz - 28W - AMD Ryzen 7 7730U 8C/16T 3.0 GHz |
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jul059
Cruncher Joined: Apr 5, 2012 Post Count: 14 Status: Offline Project Badges:
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Alibaba Cloud might also be worth considering.
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jackielan2000
Advanced Cruncher China Joined: Dec 31, 2005 Post Count: 115 Status: Offline Project Badges:
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Google Cloud has 300 dollars in free credit to use. You can use preemptive (spot) instances too for a much lower price. Can't access Google without using VPN here in China. Problem is I'm living w/ my dad now and using his old PC, no way to get a VPN  .
AMD Athlon64X2 5400+ 2.8G | 2c
MT6735 1.4G | 4c Helio G85 1.8G |8c Allwinner H2 1G | 4c SnapDragon 810 2.1G | 8c SnapDragon 801 2.5G | 4c |
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jackielan2000
Advanced Cruncher China Joined: Dec 31, 2005 Post Count: 115 Status: Offline Project Badges:
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Alibaba Cloud might also be worth considering. As long as I know, no Chinese cloud vendor provide free for 1yr service. Most of them claim giving out FREE service, but after registration you'd found out it's only for 1 day or maybe even 15 mins 
AMD Athlon64X2 5400+ 2.8G | 2c
MT6735 1.4G | 4c Helio G85 1.8G |8c Allwinner H2 1G | 4c SnapDragon 810 2.1G | 8c SnapDragon 801 2.5G | 4c |
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