A group at MIT assembled a stack of ARMed motherboards in a trash-can. 96 cores drew a bit more than 200W full out. Phoronix and MIT will publish benchmarks later. I would bet that gadget would put my Beast to shame…
Not bad for a weekend project…
see [Phoronix] Building A 96-Core Ubuntu ARM Solar-Powered Cluster.
An earlier test of a 12-core cluster of ARMed motherboards showed twice the operations per second per watt compared to Intel Atom.
17433
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a trash-can…put my Beast to shame…
Not a daunting task, eh? Even so, a trash can computer using ARM and Linux seems to offer a certain efficiency in product life cycles not usually attained.
A group at MIT assembled a stack of ARMed motherboards in a trash-can.
1. An apt place indeed.
2. How much trash-cans has Weta Digital? Enough to replace their renderwall powered by Intel Xeons?
Chris Weig this is a study of what the arm can do. For something like Weta Digital you would wait for the NUMA supporting arm like Calxeda arm chips. Most likely the 64 bit versions.
The thing is next question is what does Weta Digital need more of. Moonshot hardware from HP can have a mix of Arm and Atom boards in the one case. Yes there is a reason why Debian and Ubuntu are working on multi arch support. Moving workloads around inside a Moonshot box might include changing CPU type.
Moonshot has density of processing power. Even the atom version for rack space contains more processing power than Xeon chip. Its the old cpu vs gpu kind of problems. Many threads or very fast threads.
Really what most likely makes Arm and Atom not suitable for Weta Digital at this stage is lack of AMD and Nvidia GPU’s to accelerate the process. If AMD and Nvidia gpu’s ever appear as cards for items like Moonlight then render farms most likely will have the most effectiveness running this high density hardware.
Don’t mess with the Googlemeister, Chris!
Clarence Moon really what you are unable to find information effectively. Tell me what you have to punch into google to tell you dell repair process on different models of machines.
That answer was not Google. Lot of my answers you don’t find in google but by dealing with tech.
Heck this solar powered is not even that warped
http://hyperscalecomputing.org/2012/06/30/bicycle-powered-arm-servers/ What you happen to find when you are catching up on your conference video watching.
Yes redstone servers could be operated off that solar panel. With 96 cores at least. 32 cores 40 watts at full load. Yes 96 cores you only need 120 watts. 200 watts you can run more cores than 96 using more effective tech.
Also every arm core is faster in the redstone than the MIT solar cluster.
The PandaBoard are truly not power effective. They are highly wasteful.
It does add a interesting question with the new arm servers. Should you place a gym in your office and have it setup to generate power for your servers. Lets not waste all that power of people working out on treadmills bikes and other things. We are reaching a point human power could run a decent sized business server with enough battery storage to allow people to sleep.
The one don’t have yet is light enough to be hamster powered. http://www.planetandy.com/hamsterpower.html
Still a lot of power improvements before hamster-powered is an option for a business server. But we are heading in that direction.
Lot of my answers you don’t find in google but by dealing with tech.
Horse feathers, Mr. O, horse feathers. It is very plain that the vast majority of your posts, namely where anything that is supposed to be factual is presented, characteristically present a plethora of obscure references to things that you then proceed to demonstrate that you have little or no understanding of the principles involved. That is a sure sign of Googling for data. You cannot bring it off cleanly because your verbal skills are so poor.
Further, the amount of time that you spend at the task belies any belief in your being even a plebian level sort of IT administrator. Such a person would be too busy to spend such an inordinate amount of time at this sort of thing.
Finally, the timing of your posts, which seem to occur during normal waking hours for USA activities argues against your being in such a remote spot as Australia. Even the Aussies work and play during the daylight hours and your activities seem to occur in the middle of their nights.
I’m rather looking forward to hamster-powered dustbin servers at less than a watt per core, Mr O.
But wait! Wait! Weren’t you the one who, through diligent gurgling, had decided that many threads are worse than fast threads, or possibly the other way round, depending?
Once you’ve successfully gurgled “Thread Building Blocks,” can you explain how the average Joe in the street would find a use for this exciting exercise in providing an instantly disposable supercomputer for the masses?
Incidentally, what’s a plethora?
plethora: ” State of being overfull; excess; superabundance.
[1913 Webster]“
Clarence Moon
“Further, the amount of time that you spend at the task belies any belief in your being even a plebian level sort of IT administrator. Such a person would be too busy to spend such an inordinate amount of time at this sort of thing.
Finally, the timing of your posts, which seem to occur during normal waking hours for USA activities argues against your being in such a remote spot as Australia. Even the Aussies work and play during the daylight hours and your activities seem to occur in the middle of their nights.”
I read stuff mostly at night. I do most of my server maintenance at night. Why because the other users are asleep if something goes wrong not as many people beating down my door. Doing maintenance does equal at times sitting there with nothing much todo bar wait. The middle of night is normal.
“That is a sure sign of Googling for data.” Obscure references most come from conference videos not google.
Also I have todo so many hours a week doing english stuff to control dyslexia that is not critical to operations. Its simple than trying to write stores poems or other things.
Dr Loser
“But wait! Wait! Weren’t you the one who, through diligent gurgling, had decided that many threads are worse than fast threads, or possibly the other way round, depending?”
That all depends on work loads. Some problems can be threaded some problems cannot be.
The reality is if you should or should not thread is many factors.
Thread Building Blocks can be a complete disaster in large NUMA hardware. Dr Loser I know the tech. It all comes down to moving data around.
If you have a 1000 cores spreed over 250 physical cpus. You open up 1000 threads they end up on all of the 250 physical cores then they have to merge back into 1 you can be talking major sync pain.
Now if you had 1000 different documents to process. Opening 1 thread per document on the same system will normally complete the 1000 documents, before the 1000 documents gets 1000 threads each completes. Both system process 1000 documents. One is using multi process one is using multi thread and multi process.
Welcome to the base law of performance parallelism. Parallelism that does not have to interact with each other is faster than parallelism that has to interact with each other.
This law comes from factory floor production lines. Still applies inside super computers. Higher volume out is only possible when interactions are lower.
You don’t have people running all over the factory floor doing things. You lay down a nice single path this is single threaded. You can have other threads preping stuff up for the single thread but this comes with a trap.
Multi threading requires interaction between parts. This is why it don’t perfectly scale.
Dr Loser even at times in a quad core and 6 core single chip due to cache designs and other things you can be faster with 1 item that needs to be processes in a single thread so it remain in a single processor.
This effects is a interesting one. When you have volumes of documents to process multi-threading starts not paying. If you have small numbers of document to process multi threading pays.
Its just like the old good example you have a car and a bus. The bus can do a max of 90 km per hour and the car is allowed todo 300 km per hour. You have to get 100 kms away with your complete team. What one do you choose?
The problem here you don’t have enough information to answer if its a chess team of 2 people the car. Now if its a football team is the bus that will be the fastest way for them to get there. Yes its a sports car that can only hold two people.
Single threaded processing is the bus with many processes running at the same time. Multi threaded is the car the resource are going into moving a small number of items that need processing. Our roads have both for good reasons.
Dr Loser here is the nasty fact Threading Building Blocks by intel in single thread mode is slower than the same code built without it.
OpenMP single threaded build is not hindered by the added multi-threading support.
Dr Loser point me to threading building blocks shows not understanding the problem.
Dr Loser most of the intel benchmarks with Threading Building Block are done on a small number of items. Because it fails when you need to process a huge number of items.
Yes the car vs bus problem. Its a historic example. It first started as horse vs cart. This is the problem History tells you where to look for problems. Don’t know it repeat the same old screwups.
“Tell me what you have to punch into google to tell you dell repair process on different models of machines.”
‘ service manual’
It’s not like it’s a secret or anything.
Ted ‘service manual’ the service manual lists the different service types does not list that N class is X by default.
The answer is it on the invoice where it list the service contract type attached to the device then you can look up the service manual to find out what that means.
So the only way to know is to call sales or to have one. Dell web site does not list it clearly anywhere.
Yes there is some information goggle cannot give you because its not on-line.
Ted reality Clarence Moon has made a claim I can simple prove wrong.
Some of the information I am provide is only in the trade information. Clarence Moon is not in the trade so does not know it.
Other message is eaten. Ted the other thing most people don’t know. Is depending on what section of the dell store front you use at times alters the provided service contract on the machine.
So a N Class machine from Small business and a N Class machine same model from Enterprise section of the dell web site have different service contracts. That is the reason why the service manual tells you bugger all about what what service contract the device has just lists all the service contract options for that device and others.
N class it also lists in ‘service manual’ at times service contract that are for Windows only models not tag as such same with windows service manual listing support options for N Class even that they never apply not tagged as N Class only. Dell service manual has just screwed you over Ted. The description of the service contract that applies might be there is in the service manual but nothing in the service manual tells you want one it is for the machine in front of you.
Also to save on technical writers you will also find they have include service options that never apply to a machine of model as well at times no matter if its N or not. Yes the copy paste solution fast but not that useful. If you a really unlucky the one it is will not be in the machines service manual with dell had that twice so far and had to download a different machines service manual to get description of service contract that applied.
There are also the case of the support contract option dell has never used that when they were making the documentation for the machine they were considering using that is still in the documentation today.
Welcome to the migraine from hell that is Dell that you go and just pull the service manual you end up more confused than when you started at times. Even worse the few that declare X model is X contract can more often that is wrong. Normally that a higher contract now applies but when dell wrote the documentation they were thinking of shipping it with a lower one.
Yes its something you cannot look up by Google. Yes just because a model is in small business or home does not mean it will not have a higher service contract throw on them at times so jacking price up. The reverse can also be true you go into the Enterprise store its can be cheaper because its had a lesser service contract applied.
So price comparing with Dell is a true pain in the but requiring emails or calls to make sure you are comparing apples with apples even attempting to acquire a windows machine at the most suitable price.
Ted you are not in the trade it shows ‘ service manual’ seams like the correct answer its basically correct for almost every other computer provider.
The major exception to the rule is Dell. They are the about only ones that will sell the same machines by multi channels with different default support contract levels. Almost everyone else the machine comes with a default and everything else in support contract is a upgrade or downgrade and declared as such. Dell is one of the odd balls.
Dell is a stupid place to go to quickly quote a price compare when you understand the mess of their system.
Ted basically Dell as one of the most confusing support contact systems you could make and be legal. The simplest place to look to know what support contact it is is the invoice or to processed almost threw to buying on the full list of parts in order for approx guess you will not get a lower support contract but you might be upgraded for free due to prior orders.
Google does not lead you to either of those since the .robots file on dell directs google crawler away from going there along with every other search engine.
Ted this is why Dell confusing. Its only once you have the invoice in you little hands do you really know exactly what support contract you have.
Its a bit of information you cannot Google.
I would say Clarence Moon has been depending on Google. Yes it shows. No trade knowledge since trade knowledge tells you to stay well clear of Dell for doing price compares unless you are insanely careful.
I have said other information at times that cannot be aquired by google. Because of .robot files.
Clarence Moon claims about me don’t match the evidence. Ok I am nasty at times not fully describing stuff out and giving what appear randomish links. Because I know about the correct link and the link I pulled has enough information point out about it that with a more thought you should be able to see the rest. Like some of the ones I pulled for OLE. I was just being lazy and not pulling the exact one. Not that I don’t know the topic.
Clarence Moon has a problem of not being able to take key data out of links and disregard the rest. Instead the link has to be exactly on topic or Clarence gets confused. Hey I enjoy confusing Clarence Moon. Its more showing he does not know the topic he is commenting on. Since a person who knows the topic would see part the key point in the link.
So odd ball links is one of my ways of testing how skilled the person on the other end really is. You can spoon feed an idiot and they will get it. But when you make a idiot have to work for the answer they will repeatability get it wrong.
Oldman has proved himself even with odd ball links he is able to extract the correct information. So he has some skill. Out of date in places, incorrect in places, but there is a IT Officer there in my eyes needs to shake himself and keep a little better upto date on what is going on. Not going to get that way if people keep on say hey your cool. Also odd ball links are interesting.
Clarence Moon got his complete assessment wrong. No understand why someone might be doing what they are doing. He is complaining about some of the items I have used to work out his skill level as bugger all. Even proving no understanding of the IT trade. Oldman would have not been surprised at all that at times I am up late. General office worker are not found up late true.
Oldman will also pull the odd ball link test as well. He just has not got yet a person qualifications do show threw against particular problems. I have presented solutions that can work and why. So has he. At at times we complete don’t agree normal for IT Officers.
Clarence Moon nit picking with me does not prove your skill to me. In fact it can prove the exact other than you are not competent to read what is written so have to nit pick.