on the contrary. My 4 years experience with clusters show that after the first two months of burn-in where many components fail, you aftewards have a higher MTBF than with PCs used "normall", because in the Beowulf case the AC power is regulated, the machine is almost never switched on and off (major cause of damage because at startup every component consumes power at the same time, voltage drops, and damage occurs), temperature is kept constant, the machine is kept in a safe room where nobody ventures more often than once a week because of the cold and the noise, therefore there is no dust in the machines or grease on the contacts.
it only pays off for small volume cars. The first generations of Renault Espace for instance were made of fiberglass, as the Alpines or Matras, but Espaces sells so well that now it is less expensive to manufacture them out of steel. Steel necessitates big investments in terms of presses, that's why europeans cars only change every 5 or 6 years, then the factories are sold to 2nd or 3rd world countries, but has better performance overall notwithstanding what you mention. Chassis tend to be made of aluminium to save weight in new BMWs, the bodywork is still made of steel.
about the slow economy recovering...you should read this week "Economist", there is an interesting article about the recovery being fueled by so-called military keynesianism, financed by a low dollar. The US will payback the current growth with interests in a few years.
indeed. They should (given laymen of course) have chosen the sum of integers from 1 to 10 then from 1 to 100 the next day, or some kind of primality/factorization test (such to check if a given 3 digit number is divisible by 11 or by 7)
I remember someone in the Sun workstation room of my school playing a crappy version of the Star Wars theme ; we were all wondering where the fun was in that (since we all had that famous sally.au and 007.au) when he said that the file was only a few ko (we had a 2Mo quota then) thanks to a new system he had found on xarchie...yes, mp3 !
Then no mp3s until 1997 when I found a webpage on Dalida with a few songs (at 192 Kbps with excellent encoding !). I still have them since I have the originals.
the author was ridiculed on a french radio show by the name of "les grosses tetes". Since he was dealing with pros, he could not escape from the jokes ; a right-wing paper (Le Figaro) also nailed him for wasting taxpayers' money. Not many people realize that it's quite rare to find a scientist who actually publishes new research from time to time, and not standard crap ("we have worked on nanowhatever and not found anything worth mentioning but still publish it in order to get a pay rise")
to increase his publication record.
A video rental store next to where I work was closed three weeks after opening because of money laundering.
I knew of an arcade where the pinballs were old and completely unplayable because the owner didn't know shit about maintenance ; ten years on, it's still running, without any customers, Pacmans with out-of-sync "GAME OVER" burned screens, one color out of three active....dream of a better small-scale money laundering outfit ?
every time you teach the course, invent a completely new and original set of problems, and assign them individually to students. Use a non standard language (such as Fortran 95 - yes - ) hard to install on home computers, and watch the students as they work in your computer lab, so they cannot get outside help from people who code C++ for food (or wannabe boyfriends of cute students).
Only problem with this approach : one has to be extremely creative...you can get away with, say, three set of twelve assignments which you mix and rotate every semester.
the author concludes that the best player never wins, but someone playing second place does if he does not backstab too much...this is exactly the same in real life ! We slashdotters know many underachievers from high school who ended up richer and happier than us ! Life is unfair, maybe because of that social element which makes people dislike and eventually disadvantage you if you are too good and/or too ruthless. The catch is then that one has to be a very good hypocrite in order to hide that.
The Intel Fortran compiler supports F90, dynamical allocation, works better than Absoft or Portland Fortran, and is free for Linux...and for all of you complaining about Fortran, do you have a job ? I know someone who ended with a very nice job just because he had mentioned "Fortran" on his resume, and had spent maybe 1 week of work on " Numerical Recipes in Fortran" and the Intel/g77 compiler.
Dear Sir We Do Not Know Each Other But I Am The Son Of The President Of Scotland Yard. I Need Your Help To Recover The Sum Of One Point Five Billion Pounds (Bp 1,500,000,000) Which We Have Recovered In Nigeria. To Proceed Please Send Your Credit Card With The Pin On A Post It...
(lameness filter preventing to post in upper case)
Bouyges Telecom just licensed i-mode technology and released it in France last month, with phones that work (think several years of development in Japan) and a dozen of perfectly running applications (viamichelin, etc). I think Orange rushed the development and release of this alternative, non-working technology in order to have something to compete with for Christmas.
so what if the criminal uses a random number generator ? I used one to defeat an arguably "smart" paper-scissors-rock program which would determinate patterns in the human behavior.
counting about 4 fp per clock cycle! Only a trivial loop in assembler can achieve this kind of performance. I bet that on the LINPACK benchmark, considering a fast ethernet network, this thing can achieve maybe 50 GFlops max depending on the amount of memory available. A cluster of XP 1800s delivering the same performance costs about $30,000 nowadays including a switch. Besides, I see only the point of paying for computer power in the case of, say, a 1 hour run on a 1000 processor machine with 500 Gb of RAM, which one could never achieve on "normal" workstations. The danish MacWulf doesn't seem so interesting.
what you need : a classic supercar(vintage AC cobra, Ferrari Daytona, Porsche 911 turbo, Mercedes 300 SL Gullwing...), a nice pair of gloves, a leather jacket, yellow sunglasses, a radar detector, Hershey bars and water. Spot the gas stations, be sure they have tires for your car, and floor it ! You could take a DV camera onboard, it would surely cut some of the expenses thanks to MTV jackass.
On the 36 hours for the trip, you sure won't need any Internet access.
To my knowledge, it is still possible to pay in cash for a CD or a DVD...only the higher denomination euros banknotes carry identification tags, and certainly not the coins !
if waterproofing is able to survive, say, a MP3 192 kbit/s rip, I suppose that the waterproofing of CDs can be heard on normal Hifi gear. Let's go back to vinyl or tape then...
I doubt the interconnection network is as good as the one of true supercomputers. So 200 Tflops would be the theoretical peak power ; in practice, on Linpack benchmarks, (even if they tend to be embarrasingly parallel nowadays with the amount of memory available on each node, the size of the problem being free) since I suppose there is only a fast ethernet on not-too-expensive switches to link everything together, I doubt they could get more than 1 Tflops in sustained double precision performance on Linpack.
given what happened to the China Airlines 747 yesterday. Or should I post a joke saying "does it include a random number generator sparking an explosion in the fuel tanks "?
Slashdot Mirror
on the contrary. My 4 years experience with clusters show that after the first two months of burn-in where many components fail, you aftewards have a higher MTBF than with PCs used "normall", because in the Beowulf case the AC power is regulated, the machine is almost never switched on and off (major cause of damage because at startup every component consumes power at the same time, voltage drops, and damage occurs), temperature is kept constant, the machine is kept in a safe room where nobody ventures more often than once a week because of the cold and the noise, therefore there is no dust in the machines or grease on the contacts.
it only pays off for small volume cars. The first generations of Renault Espace for instance were made of fiberglass, as the Alpines or Matras, but Espaces sells so well that now it is less expensive to manufacture them out of steel. Steel necessitates big investments in terms of presses, that's why europeans cars only change every 5 or 6 years, then the factories are sold to 2nd or 3rd world countries, but has better performance overall notwithstanding what you mention. Chassis tend to be made of aluminium to save weight in new BMWs, the bodywork is still made of steel.
about the slow economy recovering...you should read this week "Economist", there is an interesting article about the recovery being fueled by so-called military keynesianism, financed by a low dollar. The US will payback the current growth with interests in a few years.
has a "dynamic" mode which seems to change between the easy, medium and hard difficulty levels.
I wrote "given laymen". If they could come up with something really new and really non trivial, then they would publish in a math journal.
indeed. They should (given laymen of course) have chosen the sum of integers from 1 to 10 then from 1 to 100 the next day, or some kind of primality/factorization test (such to check if a given 3 digit number is divisible by 11 or by 7)
I remember someone in the Sun workstation room of my school playing a crappy version of the Star Wars theme ; we were all wondering where the fun was in that (since we all had that famous sally.au and 007.au) when he said that the file was only a few ko (we had a 2Mo quota then) thanks to a new system he had found on xarchie...yes, mp3 !
Then no mp3s until 1997 when I found a webpage on Dalida with a few songs (at 192 Kbps with excellent encoding !). I still have them since I have the originals.
the author was ridiculed on a french radio show by the name of "les grosses tetes". Since he was dealing with pros, he could not escape from the jokes ; a right-wing paper (Le Figaro) also nailed him for wasting taxpayers' money. Not many people realize that it's quite rare to find a scientist who actually publishes new research from time to time, and not standard crap ("we have worked on nanowhatever and not found anything worth mentioning but still publish it in order to get a pay rise")
to increase his publication record.
True
A video rental store next to where I work was closed three weeks after opening because of money laundering.
I knew of an arcade where the pinballs were old and completely unplayable because the owner didn't know shit about maintenance ; ten years on, it's still running, without any customers, Pacmans with out-of-sync "GAME OVER" burned screens, one color out of three active....dream of a better small-scale money laundering outfit ?
every time you teach the course, invent a completely new and original set of problems, and assign them individually to students. Use a non standard language (such as Fortran 95 - yes - ) hard to install on home computers, and watch the students as they work in your computer lab, so they cannot get outside help from people who code C++ for food (or wannabe boyfriends of cute students).
Only problem with this approach : one has to be extremely creative...you can get away with, say, three set of twelve assignments which you mix and rotate every semester.
the author concludes that the best player never wins, but someone playing second place does if he does not backstab too much...this is exactly the same in real life ! We slashdotters know many underachievers from high school who ended up richer and happier than us ! Life is unfair, maybe because of that social element which makes people dislike and eventually disadvantage you if you are too good and/or too ruthless. The catch is then that one has to be a very good hypocrite in order to hide that.
The Intel Fortran compiler supports F90, dynamical allocation, works better than Absoft or Portland Fortran, and is free for Linux...and for all of you complaining about Fortran, do you have a job ? I know someone who ended with a very nice job just because he had mentioned "Fortran" on his resume, and had spent maybe 1 week of work on " Numerical Recipes in Fortran" and the Intel/g77 compiler.
would be the juggernaut full of DATs, to renew the old adage about bandwidth.
Dear Sir
We Do Not Know Each Other But I Am The Son Of The President Of Scotland Yard. I Need Your Help To Recover The Sum Of One Point Five Billion Pounds (Bp 1,500,000,000) Which We Have Recovered In Nigeria. To Proceed Please Send Your Credit Card With The Pin On A Post It...
(lameness filter preventing to post in upper case)
Bouyges Telecom just licensed i-mode technology and released it in France last month, with phones that work (think several years of development in Japan) and a dozen of perfectly running applications (viamichelin, etc). I think Orange rushed the development and release of this alternative, non-working technology in order to have something to compete with for Christmas.
so what if the criminal uses a random number generator ? I used one to defeat an arguably "smart" paper-scissors-rock program which would determinate patterns in the human behavior.
And now I have this list of 2000+ potentially very interesting sites to explore, with the added pleasure that Saudians are denied access to them !
don't forget to play computer-generated music using the classical rules of harmony, like on this french site on an automaton
counting about 4 fp per clock cycle! Only a trivial loop in assembler can achieve this kind of performance. I bet that on the LINPACK benchmark, considering a fast ethernet network, this thing can achieve maybe 50 GFlops max depending on the amount of memory available. A cluster of XP 1800s delivering the same performance costs about $30,000 nowadays including a switch. Besides, I see only the point of paying for computer power in the case of, say, a 1 hour run on a 1000 processor machine with 500 Gb of RAM, which one could never achieve on "normal" workstations. The danish MacWulf doesn't seem so interesting.
what you need : a classic supercar(vintage AC cobra, Ferrari Daytona, Porsche 911 turbo, Mercedes 300 SL Gullwing...), a nice pair of gloves, a leather jacket, yellow sunglasses, a radar detector, Hershey bars and water. Spot the gas stations, be sure they have tires for your car, and floor it ! You could take a DV camera onboard, it would surely cut some of the expenses thanks to MTV jackass.
On the 36 hours for the trip, you sure won't need any Internet access.
See and IMDB...
Please contact me if you do it this way !
after two weeks of rest, they began
skiing from the south pole to the north ?
Impressive indeed. No wonder the IPAQ
got wet in the process.
To my knowledge, it is still possible to pay
in cash for a CD or a DVD
denomination euros banknotes carry identification
tags, and certainly not the coins !
How could they trace what happens next ?
if waterproofing is able to survive, say,
a MP3 192 kbit/s rip, I suppose that the
waterproofing of CDs can be heard on
normal Hifi gear. Let's go back to vinyl or tape then...
I doubt the interconnection network is as good as the one of true supercomputers. So 200 Tflops would be the theoretical peak power ; in practice, on Linpack benchmarks, (even if they tend to be embarrasingly parallel nowadays with the amount of memory available on each node, the size of the problem being free) since I suppose there is only a fast ethernet on not-too-expensive switches to link everything together, I doubt they could get more than 1 Tflops in sustained double precision performance on Linpack.
given what happened to the China Airlines
747 yesterday. Or should I post a joke
saying "does it include a random number generator
sparking an explosion in the fuel tanks "?