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Old 2016-02-12, 02:54   #595
Xyzzy
 
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Quote:
Originally Posted by ewmayer View Post
Mike, you still have any of those you linked left over?
We have a few of the red and black buttons but none of the others.

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Old 2016-02-12, 03:00   #596
Batalov
 
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Some of the green buttons were mailed twice. Ask around if anyone has two.
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Old 2016-02-12, 05:04   #597
LaurV
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[edit: I was writing/replying to Ernst, crossposts, page changed]

I am in for one. Please give it to Mike (Xyzzy) and he can keep it for me, for the future. He may send it later to me in a box, in case we are doing further adventures together - nothing planned yet, but one never knows.

(yes, I am very sorry, I promised to write an editorial about how Mike helped Santa to bring me 4 water-cooled GTX Titans before the new year 2016, but I could not move my ass to write about it!)

[edit2: I don't have the first two (the white one and the red one). I have the last two (the black one and the green one). I guess I joined the club too late for the first two.]

Last fiddled with by LaurV on 2016-02-12 at 05:11
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Old 2016-02-12, 16:12   #598
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Old 2016-02-12, 17:27   #599
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Does this mean there is a new button available? If so, count me in!

Norm
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Old 2016-02-12, 17:37   #600
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Quote:
Originally Posted by Spherical Cow View Post
Does this mean there is a new button available? If so, count me in!
http://www.mersenneforum.org/showthread.php?p=426082

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Old 2016-02-12, 18:57   #601
Mark Rose
 
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Perhaps all the new prime threads should be put into a subforum? The stickied threads push the new threads far down the screen.
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Old 2016-02-12, 22:34   #602
ewmayer
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Luigi/ET claimed my extra 'white walking mule' button for M30-something. Only remaining extras are of the thread-18080 button, the one for M57885161.
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Old 2016-02-12, 22:50   #603
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Quote:
Originally Posted by Xyzzy View Post
Thanks for the re-direction, Mike- Had not noticed the new thread.

Norm
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Old 2016-02-16, 22:29   #604
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Quote:
Originally Posted by Madpoo View Post
I was just reading the speculation and leaks regarding Nvidia's Pascal architecture and the GP100 GPU.

What you said about NVLink was kind of what I understood as well, although I wasn't clear if it's a requirement or just the fact that if a motherboard has NVLink support it can use that (instead? additionally?)

I found myself reading about it when following a trail of links about high bandwidth memory. It sure seems promising since memory bandwidth continues to be the main bottleneck for multithreaded LL testing.

The other thing I was trying to figure out was what kind of FP64 Pascal will have. It seemed like some folks were saying "full" FP64 support, whatever that means... I took it to mean that Nvidia will be going back to a 1/3 or maybe 1/2 FP64 performance? Maybe full 1:1 ?

That would all be helped tremendously by the shrink to 14 nm since I think they stripped out nearly all of the DP ALUs to make room for more FP32/integer stuff... optimizing for gaming instead of HPC. 14nm could/should let them add more of those back in. And with 17 billion transistors (nearly twice the count of Titan X).

If it has decent FP64 performance I might even consider dipping my toes into the GPU world.
I have read some posts and articles ( and rumors ) about nVidia's new Pascal GPUs. Apparently they have sourced 4 different GPUs in Taiwan and sent them to their lab in India for testing. Expected release of some sort will certainly wait until the 2nd half of this year.
There is a big show or conference of some sort in April and specs are expected to be announced there. NVLink is meant for supercomputers, not for mere mortals such as ourselves; we will have to be content with PCIE. As Nvidia characterizes NVLink, "Designed to solve the challenges of exascale computing." So if you're running a simulation of a nuclear bomb test on a supercomputer and need to send lots of data around, it should be just the ticket.
Some of the posters have offered that the lion's share of the new chips are most certainly going to be Teslas, since Nvidia did NOT deliver any Teslas based on Maxwell. They need to compete with Intel's Xeon Phi Knight's Landing soon.
I personally they will get the biggest performance boost from the 3D stacked on board memory ( which Cuda calls Global memory ) as that is the biggest bottleneck I have noticed (besides lack of FP64 units) in running programs. We'll have to wait and see if they come thru with any boards with decent FP64 support. Nvidia seems to consider the original Titan as a mistake and may be reluctant to repeat releasing a board with that much FP64 power. All the blather I read about is Pascal's FP16 support, which seems like a bad sign.
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Old 2016-02-17, 01:59   #605
LaurV
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Quote:
Originally Posted by tServo View Post
Nvidia seems to consider the original Titan as a mistake and may be reluctant to repeat releasing a board with that much FP64 power. All the blather I read about is Pascal's FP16 support, which seems like a bad sign.
That is what I was saying on the forum for ages, and what I was always replying to the (many) people asking me about Pascal on PM. Like I am working for Nvidia, or owning it. I think that we will not see a competitor for Titan or K80 very soon. That is why I bought few more titans when I had tho opportunity. I don't have a phreaking idea what Pascal will be like, and honestly, I am still waiting for an, unreleased yet, "big Maxwell" before that Pascal (they will want to chip-in some money from the market before releasing big pascals, why not?), but they are not stupid to sell it for $1k when they can make $5k for it, just by putting 1/8 more RAM (for ECC purpose, 9/8 instead of 8/8). One big sign is the fact that the prices for k80s are going down almost daily, maybe the (big) guys who sell them know something we don't. Any way, it will help us. Remember what I said when 6xx and 7xx hit the market? Let them come, the prices for 580s will go down so I can buy more. Same now, let the Pascal come, so the prices of Titans go down...
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