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Old 2nd January 2013, 04:42 PM   #2491
RNMarsh is offline RNMarsh  United States
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Anyone using a lot of SSD mem, yet? Makes a huge difference.
Prices are coming down. -RNM

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Old 2nd January 2013, 04:49 PM   #2492
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Spice Mix Super-Computer – The Center for Genomic Gastronomy



And these guys will gladly take all your money http://www.cadence.com/products/cic/...s/default.aspx
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Old 2nd January 2013, 05:24 PM   #2493
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RNMarsh,
While the speed of the SSD devices is very inviting and the price is coming down, though still not even close to competitive with disk based large drives that isn't what is stopping me from purchasing them. I have been using high speed disk drives for some time, whether 10,000 rpm or even some 15,000 rpm scci drives, and raid also increases speed to read/write my concern is not speed right now. My concern is the failure mode of the ssd drives. When they fail how can you recover the data? If you are running a raid array with stripping then you would have a redundant copy if you are set up in that configuration, but what of a single ssd drive? I have considered that many times to speed up my laptop doing CAD, but unless I constantly have an external drive connected doing backup what happens while in the middle of a design when the hard drive fails? I could potentially lose all the work I have just done. At least when a standard drive fails I can pay someone to recover the information of a drive, but I have not heard of a way to recover data from what is in essence ram chips. What are the thoughts on that critical problem.
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Old 2nd January 2013, 06:05 PM   #2494
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What are the thoughts on that critical problem.
I discussed this with a sales guy, there are definately more and less reliable SSD's. I was thinking of getting one but not as an only drive. I could see putting all my swap space on one, one can always rerun sims in case of a crash.
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Old 2nd January 2013, 06:12 PM   #2495
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really? and here i thought it was you who brought that up. whatever.

The trickle-down theory may not work in economics/politics but it is working well in the computer world.
Thx-RNMarsh
Richard you know me, I'm more interested in how much computing power the Linux geeks give me for free than how much my tax dollars can buy. I only mentioned FFT's because I observed it was worth it for astronomers to buy CRAY time for problems that essentially are nothing but massive two-D FFT crunching. The oil companies also use them for three-D feature extraction from massive data sets (the ones that are done with the arrays of explosions and geo-phones). This time 3-D FFT's like a giant CAT scanner.

Trickle-down how about trickle-up?

"The world's fastest supercomputers have come back to the U.S. In June, the title was claimed by a machine named Sequoia at Lawrence Livermore Labs. Monday, at the Department of Energy's Oak Ridge National Laboratory, what could be an even faster computer comes online. It's called Titan and it would not have been possible were it not for the massive market for video games."
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Old 2nd January 2013, 06:15 PM   #2496
qusp is offline qusp  Australia
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Richard, I meant SGI's demise, not Cray, they offloaded cray a couple years before they filed chapter 11 for the 2 or 3rd time.

yeah i'm using SSD, love it it doesnt replace the hard-drive, thats not the point, just use it for system drive and applications, current project files, everything else is still on HD. mine is 240GB OWC Mercury Extreme Pro 6G SSD. its rather secure against loss as is server grade, but everything is backed up when I remember.

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Up to 100X greater data protection than the highest rated enterprise class conventional hard disk drive (HDD) provides.
5yr warranty, wear-levelling, 7% over-provisioning etc etc, its speced for enterprise computing, so has to be reliable or they end up in court

combined with an i5 its pretty astounding performance, even in Maya it pwns what I remember of the SGIs for most tasks except raytracing perhaps. I didnt have much experience with the SGIs and3D though, my Scholarship was for compositing

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Old 2nd January 2013, 10:11 PM   #2497
RNMarsh is offline RNMarsh  United States
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I've seen demo's of SSD on PC's last year and was really impressed with the speed. I wanted to convert to all SSD right then and there but then I saw the price tag. Then bought a combo SSD/HDD and that helps. But, nothing compared to all SSD. Back up is a must anyway so loss of data is no serious setback. Now the price is down to us non-sponsored human beings, I can do the exchange.... 250-500 for C: and D: would be the rest in HDD. Or some such. I am just bringing this supercomp up and memory because it is really all about SIM's and the super-memory systems such as the Cray one I mentioned used a lot of both SSD and HDD. I'll do it this year sometime--- i7 with SSD. The SSD is such a Huge improvment - all should try to upgrade with some or all SSD. We all do backups, anyway. Dont we? Thx-RNMrash

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Old 2nd January 2013, 10:23 PM   #2498
RNMarsh is offline RNMarsh  United States
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Originally Posted by scott wurcer View Post
Richard you know me, I'm more interested in how much computing power the Linux geeks give me for free than how much my tax dollars can buy. Trickle-down how about trickle-up?

..... and it would not have been possible were it not for the massive market for video games."
I forgot. forgive me. The original use and still is used for that purpose was the phys of nuclear weapons design -above ground sim. - [I'll now get a call from Home Land Security]. Which is alway a reason why they are located in secure places. The physics is basic research in many ways... what goes on inside the core of the sun is similar study. High temps, high pressures, etc. The work - even decades ago involved huge 3-D matrix manipulation in near real time for modeling/visuallizing what is happening. The High-Def video has been there before PC games. But then I dont do games at all... so havent followed where they originated as far as R&D goes. Thx-RNMarsh

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Old 2nd January 2013, 10:28 PM   #2499
Telstar is offline Telstar  Italy
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3 years ago when i built my first dedicated fanless PC for music reproduction, i used a SSD for the OS with the main reason to avoid noise. It was small and slow by today standards but still very fast and responsive.
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Old 3rd January 2013, 12:05 AM   #2500
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Originally Posted by RNMarsh View Post
I forgot. forgive me. The original use and still is used for that purpose was the phys of nuclear weapons design -above ground sim. - [I'll now get a call from Home Land Security]. Which is alway a reason why they are located in secure places. The physics is basic research in many ways... what goes on inside the core of the sun is similar study. High temps, high pressures, etc. The work - even decades ago involved huge 3-D matrix manipulation in near real time for modeling/visuallizing what is happening. The High-Def video has been there before PC games. But then I dont do games at all... so havent followed where they originated as far as R&D goes. Thx-RNMarsh
It's where the money goes, what does it matter that the scientists benefit from the destruction of our childrens minds. The latest supercomputers are based on NVIDIA GPU's developed for video game rendering. I personally hate all video games not too keen on the weapons either.
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