300+ mph without all the expensive and fragile magnets required for maglev trains, while still powered by overhead electrical lines.
AFAIK a good part of the trouble they had when running the french TGV to >550km/h speeds was related to the overhead electrical lines. Waves propagating along the line and preventing a good contact between the line and the train.
Plus with this kind of train, there is no ground connection. So they would need two overhead electrical lines.
does it matter what pixels in the imager are receiving a particular star? Are they all calibrated the same or, if the star-light falls upon more than one or on a pixel boundary, can the software make adjustments so that the measurements will provide consistent data?
Looks that they designed the thing so the light of a star is not measured by a single pixel:
The CCDs are not used to take pictures. The images are intentionally defocused to 10 arc seconds to improve the photometric precision.
> The real innovatiors should be recognized for their efforts to reduce space, power and cost
Trust me, to build a computer for the top of the top500, you have to be pretty good at these. Well, at least space and power. With over 100,000 cores, without an efficient (dense) packaging you'll need a room way too big. And a dense packaging leads to all kind of heat issues, so you have to be power-efficient.
It would hurt both the GPU and the CPU performance. Maybe not in the same way, but still.
Plus the article complaining about the use of GPUs is stupid. GPUs can be and are used to solve real scientific problems. They are not as easy to efficiently use as the CPUs, but they are almost as versatile.
Do you know that the laser used to measure the distance between the earth and the moon has a radius of over 6km when it reaches the moon, and that only one photon every few seconds comes back to the detector on earth ?
Considering how far the spaceship will be from earth, it is not even remotely possible to focus a beam precisely enough to transfer energy.
now that's just stupid, by writing hexadecimal instead of bits you can only use 1/16 the paper. Actually that would only be 1/4 the paper. One hexadecimal digit is four bits.
As for MS's purchase - we all know they have more money than sense - but I didn't realise it was that much.
240 million isn't really that much in MS terms. Shoot, their market cap is 300B I guess his point was : you must have a *LOT* of money to waste 240 million like that.
I could not agree more with you. But people sometimes don't understand that high performance is not mandatory. I was recently given a XP2800+ to replace my ooooooooold hardware, first thing I did was to underclock it by 35% to reduce heat. My mates think I'm crazy, even though all my games run perfectly with it.
I'm being tired of these fights with my girlfriend (yeah, I know,/.) who insists on using this damned key and DARES using it on MY computer and leaving caps lock ON when she has finished using it.
(No key under the 'tab' key has been used for this post)
You're missing the point. The parent simply states that comparing 'average' and 'up to' prices is a nice way to lie using numbers. It's comparing oranges to apples.
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> The F1s were only used on the Apollo missions
And Skylab.
300+ mph without all the expensive and fragile magnets required for maglev trains, while still powered by overhead electrical lines.
AFAIK a good part of the trouble they had when running the french TGV to >550km/h speeds was related to the overhead electrical lines. Waves propagating along the line and preventing a good contact between the line and the train.
Plus with this kind of train, there is no ground connection. So they would need two overhead electrical lines.
does it matter what pixels in the imager are receiving a particular star? Are they all calibrated the same or, if the star-light falls upon more than one or on a pixel boundary, can the software make adjustments so that the measurements will provide consistent data?
Looks that they designed the thing so the light of a star is not measured by a single pixel:
The CCDs are not used to take pictures. The images are intentionally defocused to 10 arc seconds to improve the photometric precision.
Any modern compiler will see that this code does nothing and simply remove it. Your benchmark is a no-op :-)
> The real innovatiors should be recognized for their efforts to reduce space, power and cost
Trust me, to build a computer for the top of the top500, you have to be pretty good at these. Well, at least space and power. With over 100,000 cores, without an efficient (dense) packaging you'll need a room way too big. And a dense packaging leads to all kind of heat issues, so you have to be power-efficient.
It would hurt both the GPU and the CPU performance. Maybe not in the same way, but still.
Plus the article complaining about the use of GPUs is stupid. GPUs can be and are used to solve real scientific problems. They are not as easy to efficiently use as the CPUs, but they are almost as versatile.
Even with an hypothetical hyper-fast network, 100.000 android phones won't get you anywhere near the top of the list.
Heck, even 100 000 Nehalem (core i7) cores won't get you in the top 5.
So, android phones ? You'll need millions of them.
No, you cannot.
Do you know that the laser used to measure the distance between the earth and the moon has a radius of over 6km when it reaches the moon, and that only one photon every few seconds comes back to the detector on earth ?
Considering how far the spaceship will be from earth, it is not even remotely possible to focus a beam precisely enough to transfer energy.
They must have the CIP module !
My bet is that this is a typo.
1.6 PB seems more reasonable.
Hummmm...
I checked.
Around 75KB, down to 17KB with gzip compression.
Plus around 20KB in png/gifs.
Not that big.
One hexadecimal digit is four bits.
240 million isn't really that much in MS terms. Shoot, their market cap is 300B I guess his point was : you must have a *LOT* of money to waste 240 million like that.
I heard somewhere that it will be in Longhorn when it ships.
I could not agree more with you. But people sometimes don't understand that high performance is not mandatory.
I was recently given a XP2800+ to replace my ooooooooold hardware, first thing I did was to underclock it by 35% to reduce heat. My mates think I'm crazy, even though all my games run perfectly with it.
Erhhm... that's exactly what the parent post meant. You've missed the sarcastic tone.
Then Bobba Fett should watch out for roundhouse kicks.
You don't seem to realize that going over 500 km/h is WAY harder and requires MUCH more energy than 325 km/h.
Air friction increases faster than the square of the speed, for instance.
but I know how to run Sub-Zero in a computer environment.
Forward - Down - Forward - low punch.
FINISH HIM !
Sub Zero Wins !
I'm being tired of these fights with my girlfriend (yeah, I know, /.) who insists on using this damned key and DARES using it on MY computer and leaving caps lock ON when she has finished using it.
(No key under the 'tab' key has been used for this post)
As long as he does not claim that Doom has turned 10. When THAT happens, I'll feel really old.
http://www.paccar.ethz.ch/news/index These guys got 5385 km/l (that's 12,666 MPG !) in 2005.
We forget so often that the chinese government isn't stupid, and maybe not even evil.
Yeah I'm sure the Dalai Lama would agree with that.
You're missing the point.
The parent simply states that comparing 'average' and 'up to' prices is a nice way to lie using numbers. It's comparing oranges to apples.
You obviously did not read tfa.
(I did, shame on me)
There have been talks and negociations between this company and Google for over 15 months, they claim.
But they could not settle on an agreement.