We're not using ATI's/nVIDIA's g4m3rz cards for that. We rarely use Linux either, for that matter.
Interesting. Pretty much everyone else in the field of 3D scientific visualization is. Whether you use the lower end cards (7800 GTX) or high end (Quadro 4500), they're still used all over the place. I've sometimes seen Windows used for this, but only on the desktop. For large-scale parallel visualization, it's very rare that I see anything but Linux.
Do you mind attaching a name/ID to your post so I can track the conversation?
I have the specs in hand for a display that turns off the individual light-emitting elements when the signal to that pixel says "black". When it is one step above black, the element turns on and a second "valve" starts modulating that light. Thus, when you have true black in your image, you get real black. No light added to the background ambient light. That as good as you can get, even theoretically.
I just read through his response letter. Has everyone lost their professional touch? ESR definitely makes himself look like a jerk with that response. In the real world, people tend to be more polite.
Unfortunately, that's pretty much classic ESR. He's never been one to be very politic when it comes to his interactions with people who peeve him in the slightest. It's not that he doesn't know how to communicate effectively and politely. He does, he just chooses not to.
Sure, they've fixed a bunch. This is the first release that'll run on OS X 10.4, for instance (so, yes, I've had production releases of my code using pre-release snapshots of Qt3.3.5, as Qt 3.3.4 doesn't run on Tiger). (emphasis mine)
I don't see a problem with it. Information on how to classify a computer is not classified.
No, it's not. The problem isn't revealing classified information. It's relying on a public forum to try and solve an ironclad security problem. The people here have some of the expertise that you're looking for, but they're not involved in your design decisions. They don't have the knowledge of the information that needs to be protected, the use cases, physical security issues, the hardware requirements, etc. And you aren't paying them to do it, so it's not their ass on the line.
Asking Slashdot for hints is one thing. But I hope that's as far as you're taking things. Depending on the information received would be folly. It's similar to asking random people on the street how to design a secure bank vault. You're sure to miss some very important things.
My suggestion: Follow what this guy says about rules and regs for DoD contractors. Second suggestion: find someone else who has already done this. There has to be someone in your organization or other organizations. Don't take this on yourself. Remember, if you designed it, you're going to be held accountable for it. Be sure you're ready for that.
I'm a professional, successful scientist, working at a world-class scientific laboratory, doing my best to make an impact on basic energy, climate, and materials science. I'm also a conservative Catholic Christian, exactly the type of person that most of the people in this discussion are railing against. If you followed all of the bile, you'd think that being a scientist and being a Christian were completely incompatible. I have never believed so. In fact, I consider them inextricable.
And it would seem that my colleagues find the positions compatible as well. I don't have the statistics readily at hand, but I believe that something like 75% of scientists believe in God.
(Discussions like this just make me tired. It takes a tremendous amount of energy to keep up a conversation that generates much more heat than light.)
Now, lets say that Microsoft hires 300 second tier Linux developers at 100k each plus benefits (lets say 130k to be conservative).
That sounds way too low. In my project plans and budgets, the number that I've worked with for many years is $333K, or 3 developers/scientists for $1 million. That number includes salary, benefits, facilities, travel, 401, everything. And we're not talking supernerds here, just normal people.
Now, that may very well be that I'm working with Department of Energy dollars. I know the private sector can do things much more efficiently than the government (or government contractors), but I've definitely seen some companies who do very good work charge around that rate.
That would change your estimates by a factor of around 3.
Well, kind of. It's a "texture element", the smallest part of a texture. Only when rasterization to a frame buffer happens does the concept of "pixel" come into play. It's useful to talk about texels as an independent entity from pixels. I know you mentioned the separation in your final sentence, but I wanted to make it very clear.
She went on to explain that, although they have paddocks with high electric fences to keep their current populations where they want them, they are inadequate for elephants. In other words, electric fence or not, elephants will just roll right on through. The investment, she said, needed to implement proper barriers to keep the elephants from just trampling into whatever area of the park they so desire (and to keep them from simply exiting the park) is too cost prohibitive to make any economic sense.
Maybe I'm being naive here, but how about large concrete walls? No high-voltage wires, no tracking, nothing to fail. Just thick concrete, about 15 feet high, surrounding the area in which you want to contain the elephants. I don't see why that wouldn't be cheap, fast, and effective.
Highlighting the search terms (no, it is not the same as / or control+F)
Can you say how it's different? There's a "highlight" button to the right on the search bar in Firefox. Hitting that causes all matching words on the page to turn yellow. How is google's different?
But I am happy to say I don't vote conservative:=)
It was once said that if you aren't a liberal when you're 20, you have no heart. And if you aren't a conservative when you're 30, you have no brain.
How old are you?:-)
Resolidification and molecular modeling
on
How Ice Melts
·
· Score: 1
This isn't exactly a simulation of melting, but it does involve simulation at a similar molecular level. The work that Fred Streitz and co. at Lawrence Livermore National Laboratory are doing explores the processes involved in the rapid resolidification of tantalum. They're reproducing, from first principles, some basic materials results like grain boundaries and such. It's one of the largest (if not the largest) simulation running the the world's largest supercomputer. One of my team members is doing the visualization work for it.
It shows that what many may consider to be a very simple process that is well explored and understood at a high school science class level is actually a very complex process when taken down to the molecular level. There is still a good amount of science to be done in the fundamentals of materials modeling. See this for somewhat related work and some cool pictures (if I do say so myself:-).
Thanks for all of the info. We have been working toward home schooling our children, and have already started with our 4-year-old. But having an excellent school system will allow us to take advantage of cooperative educational opportunities that we otherwise wouldn't have. And by the time they transition to high school, they'll have something phenomenal to go to! Plus, the school system helps maintain housing values. I just heard about an hour ago from our realtor that they're about to break ground on the new high school.
As for the environmental areas, I'm most worried about the East Fork Poplar Creek that runs through Y-12 and then heads north and west to run along the west end of the Turnpike. It was used basically as an "industrial ditch" by Y-12 for a long time. I absolutely love the houses along that western ridge, but I'm a bit worried about my kids playing in what was contaminated with lots of mercury for many years. They still can't get the levels down in the fish. And my wife would like to do organic gardening. I don't think it's much of a problem for that, but she's rather worried. We are likely to buy in the Emory Valley Road area.
I'll be working in the Computer Science and Mathematics Division, heading up a scientific visualization team. Just did the physical this morning, and I hope to start in a few weeks.
I'm about to move from California to Oak Ridge, TN. Just accepted a job with ORNL. I have two small children, and we're hoping to buy a house in Oak Ridge directly. Should be interesting...
I'm glad to hear your vote of confidence about the city! Though I'm a bit leery of living that close to Y-12. They haven't always been the best environmental neighbors.
Exactly why do you assume it's only liberals who oppose the PATRIOT act? There's at least a couple of republican congresscritters who do. It's by no means a straight party line as to who supports and opposes it.
Yep, exactly. Opposition to the PATRIOT Act is growing in conservative circles. Considering the opposition on both sides of the fence, I expect to see major changes to the Act, not this term, but probably the first term of the next president in office.
Slashdot Mirror
We're not using ATI's/nVIDIA's g4m3rz cards for that.
We rarely use Linux either, for that matter.
Interesting. Pretty much everyone else in the field of 3D scientific visualization is. Whether you use the lower end cards (7800 GTX) or high end (Quadro 4500), they're still used all over the place. I've sometimes seen Windows used for this, but only on the desktop. For large-scale parallel visualization, it's very rare that I see anything but Linux.
Do you mind attaching a name/ID to your post so I can track the conversation?
What are we doing with them? Scientific Visualization.
We pay attention.
I have the specs in hand for a display that turns off the individual light-emitting elements when the signal to that pixel says "black". When it is one step above black, the element turns on and a second "valve" starts modulating that light. Thus, when you have true black in your image, you get real black. No light added to the background ambient light. That as good as you can get, even theoretically.
Nice. So what did you use to capture the quicktime in the first link?
Blood-blagger-Beast-of-Trawl
:-)
Kissing cousins with the Ravenous Bugblatter Beast of Traal.
Doesn't sound like a job offer to me, simply a request for an initial screening interview.
Doesn't sound like one to me, either. I hope my original comment did not come across that I thought he was offered a job.
just because ESR seems to think that's a job offer doesn't make it so. Nowhere in the letter he was sent does it indicate anything like a job offer
Oh, I agree completely. I didn't mean for my comment to give the impression that I believe he was offered a job.
I just read through his response letter. Has everyone lost their professional touch? ESR definitely makes himself look like a jerk with that response. In the real world, people tend to be more polite.
Unfortunately, that's pretty much classic ESR. He's never been one to be very politic when it comes to his interactions with people who peeve him in the slightest. It's not that he doesn't know how to communicate effectively and politely. He does, he just chooses not to.
He did not say on his page that he was actually offered any sort of job.
Um. From the page:
I'd thank you for your offer of employment at Microsoft,
Sure, they've fixed a bunch. This is the first release that'll run on OS X 10.4, for instance (so, yes, I've had production releases of my code using pre-release snapshots of Qt3.3.5, as Qt 3.3.4 doesn't run on Tiger). (emphasis mine)
Huh? I have software running on Tiger right now that's using Qt 3.3.4. And not the X11 version.
I don't see a problem with it. Information on how to classify a computer is not classified.
No, it's not. The problem isn't revealing classified information. It's relying on a public forum to try and solve an ironclad security problem. The people here have some of the expertise that you're looking for, but they're not involved in your design decisions. They don't have the knowledge of the information that needs to be protected, the use cases, physical security issues, the hardware requirements, etc. And you aren't paying them to do it, so it's not their ass on the line.
Asking Slashdot for hints is one thing. But I hope that's as far as you're taking things. Depending on the information received would be folly. It's similar to asking random people on the street how to design a secure bank vault. You're sure to miss some very important things.
My suggestion: Follow what this guy says about rules and regs for DoD contractors. Second suggestion: find someone else who has already done this. There has to be someone in your organization or other organizations. Don't take this on yourself. Remember, if you designed it, you're going to be held accountable for it. Be sure you're ready for that.
I'm a professional, successful scientist, working at a world-class scientific laboratory, doing my best to make an impact on basic energy, climate, and materials science. I'm also a conservative Catholic Christian, exactly the type of person that most of the people in this discussion are railing against. If you followed all of the bile, you'd think that being a scientist and being a Christian were completely incompatible. I have never believed so. In fact, I consider them inextricable.
And it would seem that my colleagues find the positions compatible as well. I don't have the statistics readily at hand, but I believe that something like 75% of scientists believe in God.
(Discussions like this just make me tired. It takes a tremendous amount of energy to keep up a conversation that generates much more heat than light.)
Now, lets say that Microsoft hires 300 second tier Linux developers at 100k each plus benefits (lets say 130k to be conservative).
That sounds way too low. In my project plans and budgets, the number that I've worked with for many years is $333K, or 3 developers/scientists for $1 million. That number includes salary, benefits, facilities, travel, 401, everything. And we're not talking supernerds here, just normal people.
Now, that may very well be that I'm working with Department of Energy dollars. I know the private sector can do things much more efficiently than the government (or government contractors), but I've definitely seen some companies who do very good work charge around that rate.
That would change your estimates by a factor of around 3.
It's a 'textured pixel'.
Well, kind of. It's a "texture element", the smallest part of a texture. Only when rasterization to a frame buffer happens does the concept of "pixel" come into play. It's useful to talk about texels as an independent entity from pixels. I know you mentioned the separation in your final sentence, but I wanted to make it very clear.
She went on to explain that, although they have paddocks with high electric fences to keep their current populations where they want them, they are inadequate for elephants. In other words, electric fence or not, elephants will just roll right on through. The investment, she said, needed to implement proper barriers to keep the elephants from just trampling into whatever area of the park they so desire (and to keep them from simply exiting the park) is too cost prohibitive to make any economic sense.
Maybe I'm being naive here, but how about large concrete walls? No high-voltage wires, no tracking, nothing to fail. Just thick concrete, about 15 feet high, surrounding the area in which you want to contain the elephants. I don't see why that wouldn't be cheap, fast, and effective.
Highlighting the search terms (no, it is not the same as / or control+F)
Can you say how it's different? There's a "highlight" button to the right on the search bar in Firefox. Hitting that causes all matching words on the page to turn yellow. How is google's different?
Thanks for the reference. Obviously, it was changed slightly by the time I heard it.
But I am happy to say I don't vote conservative :=)
:-)
It was once said that if you aren't a liberal when you're 20, you have no heart. And if you aren't a conservative when you're 30, you have no brain.
How old are you?
This isn't exactly a simulation of melting, but it does involve simulation at a similar molecular level. The work that Fred Streitz and co. at Lawrence Livermore National Laboratory are doing explores the processes involved in the rapid resolidification of tantalum. They're reproducing, from first principles, some basic materials results like grain boundaries and such. It's one of the largest (if not the largest) simulation running the the world's largest supercomputer. One of my team members is doing the visualization work for it.
:-).
It shows that what many may consider to be a very simple process that is well explored and understood at a high school science class level is actually a very complex process when taken down to the molecular level. There is still a good amount of science to be done in the fundamentals of materials modeling. See this for somewhat related work and some cool pictures (if I do say so myself
The former.
Thanks for all of the info. We have been working toward home schooling our children, and have already started with our 4-year-old. But having an excellent school system will allow us to take advantage of cooperative educational opportunities that we otherwise wouldn't have. And by the time they transition to high school, they'll have something phenomenal to go to! Plus, the school system helps maintain housing values. I just heard about an hour ago from our realtor that they're about to break ground on the new high school.
As for the environmental areas, I'm most worried about the East Fork Poplar Creek that runs through Y-12 and then heads north and west to run along the west end of the Turnpike. It was used basically as an "industrial ditch" by Y-12 for a long time. I absolutely love the houses along that western ridge, but I'm a bit worried about my kids playing in what was contaminated with lots of mercury for many years. They still can't get the levels down in the fish. And my wife would like to do organic gardening. I don't think it's much of a problem for that, but she's rather worried. We are likely to buy in the Emory Valley Road area.
I'll be working in the Computer Science and Mathematics Division, heading up a scientific visualization team. Just did the physical this morning, and I hope to start in a few weeks.
I'm about to move from California to Oak Ridge, TN. Just accepted a job with ORNL. I have two small children, and we're hoping to buy a house in Oak Ridge directly. Should be interesting...
I'm glad to hear your vote of confidence about the city! Though I'm a bit leery of living that close to Y-12. They haven't always been the best environmental neighbors.
Uh huh. Just as Chemistry is not a branch of Science.
It does remind me of a joke, though...
Exactly why do you assume it's only liberals who oppose the PATRIOT act? There's at least a couple of republican congresscritters who do. It's by no means a straight party line as to who supports and opposes it.
Yep, exactly. Opposition to the PATRIOT Act is growing in conservative circles. Considering the opposition on both sides of the fence, I expect to see major changes to the Act, not this term, but probably the first term of the next president in office.
But that's just me. I could be wrong.