Different results on different hardware was a major problem up until CPU designers started to implement the IEEE754 standard for floating point arithmetic. IEEE754 conforming implementations should all return identical results for identical calculations
However, x86 systems have an 80-bit extended precision format and if the software uses 80-bit floats on x86 hardware and then you run the same code on an architecture that does not support the x86 80-bit format (say, ARM or Sparc or PowerPC) then you are likely to get different answers.
I think newer revisions of IEEE754 have support for extended precision formats up to 16-bytes, but you need to know your hardware (and how your software uses it) to make sure that you are doing equal work on systems with equal capabilities. You may have to sacrifice precision for portability.
There's such a thing as "enough", and there's no particular reason to press your luck when you already have it.
The snapchat founders have been able to monetize their situation such that they've already got at least 10 million in the bank. That's enough "FU money" to press their luck and ride this thing all the way to the end, glory or otherwise.
There is nothing "rare" about needing to do maintenance on any electrical generation system.
Of course it is rare. Once a year is rare. Individual houses going off line for a couple of hours once a year is not a serious fluctuation. Your intellectual dishonesty casts doubt on all of your unsupported claims.
And clouds do not "reduce demand for electricity" on the short timescales that they will reduce power feeds from solar paneled homes.
The kind of transitory clouds that don't reduce A/C load also don't affect a large area either.
Except that building in the necessary safety management, and power management, to deal with current coming the other way from your customers is not free
Not free, just a tiny drop in the bucket. You are encouraged to provide citations that prove otherwise.
Clients with solar panels are unlikely to call the electrical plant and announce when they are disconnecting for maintenance.
Such a rare event that mentioning it really looks like grasping at straws.
And clouds passing over an area can cause serious variation in the customer provided solar power, in highly variable fashion that affects whole neighborhoods of panels.
Clouds also reduce demand for electricity because A/C is the primary form of electric consumption during the day.
the utility is making a profit reselling the power you generate.
Not only that, but because solar generates the most energy in the middle of the day which is also when there is the highest rate of consumption, it helps to reduce peak demand. Peak demand is the most expensive kind of electricity to generate because most electric plants aren't variable, they are either on or off and spinning them up costs a lot of money.
Residential solar also reduces the need to build an entirely new plant to handle peak demand. It really is a big-time win for most utilities. Them going after solar-connection fees is kind of like ISP's wanting to double-charge both customers and big websites like youtube for bandwidth.
Maybe, one day, when residential solar has a much higher installation rate, it would be fair to charge a "grid fee" - but right now it's pure gravy.
Ugh. Chrome is dog-slow at viewing PDF's. If I had to use it on an older laptop it would be approaching physical pain to suffer with it. I use Sumatra - it is bare-bones and blazing fast.
Why is it okay to preach universal health-care and group insurance where low-risk cover the bill for high-risk, but the same isn't true for auto insurance? It's a slippery slope!
Part of the problem here is that the word "insurance" is over-loaded with multiple definitions. Most forms of insurance are about insuring against an accident. Universal health-care isn't about insurance any more than the national highway system is about auto-insurance. It is more like having a police force to 'insure' against crime. It is a public service that some people will use more than others.
Studies have consistently shown that the safest drivers are around the 85th percentile by speed, so they really just need to measure how fast you go and charge more for the slower and faster drivers.
So much wrong with that. You've mixed up traffic safety guidelines for setting maximum speed limits. If you think about it for a second, expecting everybody to drive at the 85th percentile speed is impossible.
all i can think about is time warner and youtube. all youtube videos are throttled so horribly with time warner
Here's how to fix it. A good friend suffers under TWC and applied that fix over a year ago (that site is not the only one to discuss, just the first one I clicked on in google), since then youtube has been great for him.
most people are boring as hell. Even the ones that think they're interesting.
However, the ones who are interesting tend to be pretty important to society. Guys like MLK, presidential candidates, potential supreme court nominees. Those sorts of people. When the government has access to their private communications it is just too easy to use that access to neuter any people who might challenge the current government.
On what evidence do you base your claim that the same number of calories per day will make you thinner if they come from a source that doesn't raise blood glucose?
Seems like the opposite to me. They haven't proven that porn reduces incidents of sexual assault, but at a minimum increased societal access is empirically anti-correlated with the rate of sexual assault.
Video games don't cause people to be violent, nor do they cause them to be peaceful.
"the researchers found that the playing of such games actually had a very slight calming effect on youths with attention deficit symptoms and helped to reduce their aggressive and bullying behavior."
there's no way in hell I'd ever try to contribute upstream, because I know I'm not an experienced kernel hacker, and frankly I'm not sewn for the sort of macho abuse that dorks like to give each other.
Sounds like a matter of perception. Linus yells at the people high up in the hierarchy because they are experienced and shouldn't be making dumb mistakes - right or wrong you aren't likely to get on the wrong end of that. As a newbie contributor any work you would do would go through a couple of levels of people vetting it for you. If you make dumb mistakes chances are the person who notices them will be a lot more gentle in pointing them out because dealing with newbies is part of the role in the hierarchy. No system is perfect, I'm sure there are some newbies who have received overly harsh responses, but that's going to be rare.
Slashdot Mirror
Different results on different hardware was a major problem up until CPU designers started to implement the IEEE754 standard for floating point arithmetic. IEEE754 conforming implementations should all return identical results for identical calculations
However, x86 systems have an 80-bit extended precision format and if the software uses 80-bit floats on x86 hardware and then you run the same code on an architecture that does not support the x86 80-bit format (say, ARM or Sparc or PowerPC) then you are likely to get different answers.
I think newer revisions of IEEE754 have support for extended precision formats up to 16-bytes, but you need to know your hardware (and how your software uses it) to make sure that you are doing equal work on systems with equal capabilities. You may have to sacrifice precision for portability.
28 Neutrinos later and the damn kids are still asking, "Are we there yet?"
Media Darling Gets Unfair Share of Positive and Negative Media Attention - News at 11!
There's such a thing as "enough", and there's no particular reason to press your luck when you already have it.
The snapchat founders have been able to monetize their situation such that they've already got at least 10 million in the bank. That's enough "FU money" to press their luck and ride this thing all the way to the end, glory or otherwise.
Germany is an interesting example of scale. They are planning to add over 7GW of fossil generation in the next few years.
What an amazing coincidence that this is the first hit in google when searching for "Germany 7GW"
German power utilities seek to close 7 GW in capacity - Oct 24, 2013
It's hardly free:
Not free, just a tiny drop in the bucket.
There is nothing "rare" about needing to do maintenance on any electrical generation system.
Of course it is rare. Once a year is rare. Individual houses going off line for a couple of hours once a year is not a serious fluctuation. Your intellectual dishonesty casts doubt on all of your unsupported claims.
And clouds do not "reduce demand for electricity" on the short timescales that they will reduce power feeds from solar paneled homes.
The kind of transitory clouds that don't reduce A/C load also don't affect a large area either.
Yes, we have the example of Flight 93 but I think that's an exception to the rule
No so much:
http://www.cnn.com/2012/06/29/world/asia/china-plane-hijack-foiled/
http://www.hurriyetdailynews.com/default.aspx?pageid=438&n=man-attempts-to-hijack-thy-plane-in-istanbul-reports-say-2011-01-05
http://www.dailymail.co.uk/news/article-149289/Italian-plane-hijack-foiled.html
Except that building in the necessary safety management, and power management, to deal with current coming the other way from your customers is not free
Not free, just a tiny drop in the bucket. You are encouraged to provide citations that prove otherwise.
Clients with solar panels are unlikely to call the electrical plant and announce when they are disconnecting for maintenance.
Such a rare event that mentioning it really looks like grasping at straws.
And clouds passing over an area can cause serious variation in the customer provided solar power, in highly variable fashion that affects whole neighborhoods of panels.
Clouds also reduce demand for electricity because A/C is the primary form of electric consumption during the day.
the utility is making a profit reselling the power you generate.
Not only that, but because solar generates the most energy in the middle of the day which is also when there is the highest rate of consumption, it helps to reduce peak demand. Peak demand is the most expensive kind of electricity to generate because most electric plants aren't variable, they are either on or off and spinning them up costs a lot of money.
Residential solar also reduces the need to build an entirely new plant to handle peak demand. It really is a big-time win for most utilities. Them going after solar-connection fees is kind of like ISP's wanting to double-charge both customers and big websites like youtube for bandwidth.
Maybe, one day, when residential solar has a much higher installation rate, it would be fair to charge a "grid fee" - but right now it's pure gravy.
Ugh. Chrome is dog-slow at viewing PDF's. If I had to use it on an older laptop it would be approaching physical pain to suffer with it. I use Sumatra - it is bare-bones and blazing fast.
https://en.wikipedia.org/wiki/Sumatra_PDF
Why is it okay to preach universal health-care and group insurance where low-risk cover the bill for high-risk, but the same isn't true for auto insurance? It's a slippery slope!
Part of the problem here is that the word "insurance" is over-loaded with multiple definitions. Most forms of insurance are about insuring against an accident. Universal health-care isn't about insurance any more than the national highway system is about auto-insurance. It is more like having a police force to 'insure' against crime. It is a public service that some people will use more than others.
Studies have consistently shown that the safest drivers are around the 85th percentile by speed, so they really just need to measure how fast you go and charge more for the slower and faster drivers.
So much wrong with that. You've mixed up traffic safety guidelines for setting maximum speed limits. If you think about it for a second, expecting everybody to drive at the 85th percentile speed is impossible.
Forget all this half-assed farting around.
Just return the law to the state it was before the 2005 Brand X SCOTUS ruling that neutered network neutrality.
all i can think about is time warner and youtube. all youtube videos are throttled so horribly with time warner
Here's how to fix it. A good friend suffers under TWC and applied that fix over a year ago (that site is not the only one to discuss, just the first one I clicked on in google), since then youtube has been great for him.
http://mitchribar.com/2013/02/time-warner-cable-sucks-for-youtube-twitchtv/
most people are boring as hell. Even the ones that think they're interesting.
However, the ones who are interesting tend to be pretty important to society. Guys like MLK, presidential candidates, potential supreme court nominees. Those sorts of people. When the government has access to their private communications it is just too easy to use that access to neuter any people who might challenge the current government.
I synthesized it from http://www.theguardian.com/commentisfree/2013/oct/06/prism-tempora-cabinet-surveillance-state
At least now we know the real Mark Zuckerberg ...
We've known the real him for a while now:
Zuck: Yeah so if you ever need info about anyone at Harvard
Zuck: Just ask.
Zuck: I have over 4,000 emails, pictures, addresses, SNS
[Redacted Friend's Name]: What? How'd you manage that one?
Zuck: People just submitted it.
Zuck: I don't know why.
Zuck: They "trust me"
Zuck: Dumb fucks.
http://www.businessinsider.com/well-these-new-zuckerberg-ims-wont-help-facebooks-privacy-problems-2010-5
Parent is a Maduro shill or worse.
Looking at his home page I doubt it. Probably just ignorant.
Other than getting the media thing wrong, everything else he wrote sounds plausible. Do you disagree with any of it, and if so, why?
On what evidence do you base your claim that the same number of calories per day will make you thinner if they come from a source that doesn't raise blood glucose?
Teh internet!
Same way they do as JS.
That's not particularly reassuring.
I'd can't be bothered with being made to prove myself at every turn in the face of stark criticism often of the NIH kind.
NIH is a completely orthogonal problem to dickishness.
It's not a for-profit industry. Certainly, the Catholic priests weren't there for the money.
It wasn't even an industry since the pedopriests weren't manufacturing kiddie porn, just abusing kids for their own gratification.
and 60+ years of pr0n research.
Would you care to point me to this research?
Seems like the opposite to me. They haven't proven that porn reduces incidents of sexual assault, but at a minimum increased societal access is empirically anti-correlated with the rate of sexual assault.
Video games don't cause people to be violent, nor do they cause them to be peaceful.
"the researchers found that the playing of such games actually had a very slight calming effect on youths with attention deficit symptoms and helped to reduce their aggressive and bullying behavior."
http://www.sciencedaily.com/releases/2013/08/130826123134.htm
there's no way in hell I'd ever try to contribute upstream, because I know I'm not an experienced kernel hacker, and frankly I'm not sewn for the sort of macho abuse that dorks like to give each other.
Sounds like a matter of perception. Linus yells at the people high up in the hierarchy because they are experienced and shouldn't be making dumb mistakes - right or wrong you aren't likely to get on the wrong end of that. As a newbie contributor any work you would do would go through a couple of levels of people vetting it for you. If you make dumb mistakes chances are the person who notices them will be a lot more gentle in pointing them out because dealing with newbies is part of the role in the hierarchy. No system is perfect, I'm sure there are some newbies who have received overly harsh responses, but that's going to be rare.