Posts by ivan


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21) Message boards : Number crunching : Как заставить работать Intel GPU? (Message 1474642)
Posted 70 days ago by Profile ivan
Just wondering, if even with the google translator i can´t understand what you are talking about in Russian. Now imagine if we finaly receive an ET call, how we will do to understand it? Maybe someone will need to create an enigma like project to try to decode the message?

Saw an interesting snippet the other day (The Register?). Google translate uses artificial intelligence rather than language knowledge per se to do its translations. But Google are finding more and more pages on web-sites that use Google Translate to provide multi-lingual offerings. So Google Translate is starting to be poisoned by its own output!
22) Message boards : Number crunching : Energy efficient GPU for servers? (Message 1474552)
Posted 71 days ago by Profile ivan
ok, thank you. sheduled from next salary.
http://aio.lv/lv/pc-components/graphic-cards/asus-90yv04a0-m0na00/
that is right one ( rev 2.0) ?

P.S. 630 rev 2.0 looks even more efficiency and good - for price less 50 eur, peak perf there is about 690 gflops, power consumption about 25 watt, and there is 27 gflops per watt vs 16 on geforce 640!
looks like lot more efficient. i think, i buy one 630 from asus first.

That's the business! Looks like it's formatted for single-width low-profile too, like my Gigabyte.
As for which way to go, it depends on where your priority lies - cost, power consumption, or processing speed. As the old adage goes, "choose any two"! :-)
23) Message boards : Number crunching : Panic Mode On (86) Server Problems? (Message 1474549)
Posted 71 days ago by Profile ivan
No stats dump for 3 days running now... But as AP's are flowing really nothing serious to complain about.


Can I suggest that someone with the appropriate connections contact the Berkeley team. The last time this happened was also just after an issue with the backup server and it was over a weak before Mat realised that he had forgotten to set the switch to do the stats dump. It made a complete mess of the stats graphs for the next 60 days as all you could see was one huge spike and no detail of any other day.

Edit I am also very close to being in the top 0.05% for seti and getting impatient!

You mean it looked like this?



*snicker*

That's just some Aussie celebrating Australia Day!
24) Message boards : Number crunching : New PSU, capable of feeding O.C:d CPU and 4 GTX780's -- oppinions, hard facts. Please anyone? (Message 1474228)
Posted 71 days ago by Profile ivan
@link: from nvidia 780 specs (just for one 780 no OC): Minimum of a 600 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 42 Amps.)
Be sure you understand the word: minimum
Thermal and Power Specs:
95 C Maximum GPU Temperature (in C)
250 W Graphics Card Power (W)
600 W Minimum Recommended System Power (W)
One 8-pin and one 6-pinSupplementary Power Connectors
From http://www.geforce.co.uk/hardware/desktop-gpus/geforce-gtx-780/specifications
My take on that is minumum recommended power for a dual-GPU rig would be 850 W, or 1350 W for a quad.
25) Message boards : Number crunching : Energy efficient GPU for servers? (Message 1473766)
Posted 72 days ago by Profile ivan
thanks, thats good info. it prices starts about 70 eur there. before that i slowly thinking about 550ti for about 100eur....

Oh, and the good thing about mine is that it is on a single-width card and comes with a mounting bracket for a low-profile case. Make sure you're looking at the 1046 MHz version though, there are several models all called GT 640.
26) Message boards : Number crunching : New PSU, capable of feeding O.C:d CPU and 4 GTX780's -- oppinions, hard facts. Please anyone? (Message 1473764)
Posted 72 days ago by Profile ivan
BY NVidia specs (very conservative BTW) the minimum PSU to drive a single 780 running at stock speed is 600W, and uses 42A from the 12V rail. By the AX650 specs the maximum 12V capacity is about 62A. So if you try to run 2x780+MB on a single AX650 you will overload the PSU.

Be careful that you're not confusing system power with GPU power. I just got a GT 640 and the box says "Min. power req. 300W", but that's for the whole system; The Wiki page gives the TDP as 49 W, as did another source (perhaps even drilling down on Nvidia's site, I don't recall). The aforementioned Wiki page gives the 780's TDP as 250 W.
27) Message boards : Number crunching : Energy efficient GPU for servers? (Message 1473760)
Posted 72 days ago by Profile ivan
Hello!
Anyone investigating questins about low level videocards like as geforce 210, start range ati and so on - say, with energy consumption up to 20 watts, 30 watts, 40 and 50?
i think, there around is lot of various 24/7 servers, where videocard not very important, and there be purchased a cheap videocards - but what is better, and what card no?

Currently the Rev. 2 DDR5 GT640 (1046 MHz) is cheap(ish) and has one of the higher Flops/Watt ratings on the Wiki page (49 W, 16.39 GFlops/W). It doesn't need auxiliary power leads, the PCI-e slot provides enough. I got one (used) for £50, from memory they are about £80 or so new.
28) Message boards : Number crunching : Sorry to Wingmen (Message 1471800)
Posted 78 days ago by Profile ivan
Started pulling things, the SSD, the new DVD drive... Finally pulled the HDD and put it in a USB caddy -- and it booted! Running like that for now, but need AP workunits as it's not set up to run GPU MBs at the moment.

Hallelujah, AP's just started coming down the 'pike!
29) Message boards : Number crunching : Sorry to Wingmen (Message 1471745)
Posted 78 days ago by Profile ivan
I came home to a computer that was no longer bootable under any circumstances.

Had a similar problem today. Spent the week at CERN, for meetings, but my main home cruncher (with the GTX 560 and GT 640 GPUs) crashed just a few hours after I left last Sunday. Absolutely miserable trip home (about 7 hours, CERN to Seaview Cottage, two of which were in indescribable queues for checkin and security at Geneva airport) to find machine was having disk problems. Have a Mint install on HDD and a dual-boot RHEL7 on SSD; best I could do was get a non-graphical boot from the SSD.
Started pulling things, the SSD, the new DVD drive... Finally pulled the HDD and put it in a USB caddy -- and it booted! Running like that for now, but need AP workunits as it's not set up to run GPU MBs at the moment. [Edit] I have compiled the MB GPU code, but I'm running stock, not anonymous platform, for the nonce.[/Edit]
30) Message boards : Number crunching : Some questions about the Geforce GT640 (Message 1468454)
Posted 86 days ago by Profile ivan
Anyway, it's currently running and now I have two AP jobs running on each GPU, and six MB jobs running on the CPU (hyperthreading). The first jobs appear to be running just slightly slower than half the speed of the GTX560, so that might add another 9,000 or so to the machine's RAC. It's running at 64 C with the fan at 65%; the 560 is running 76 C and 95% fan.

Noticed after a while that "top" reported consistently 17-20% idle, which is more than one CPU in an 8-(hyperthreaded)CPU machine, so I modded my app_info.xml file:
<app>
<name>astropulse_v6</name>
<gpu_versions>
<gpu_usage>.49</gpu_usage>
<cpu_usage>.33</cpu_usage>
</gpu_versions>
</app>
and now I'm running a seventh CPU WU and top shows usually less than 10% idle, but I can still watch iPlayer without glitches (well, SD anyway; contention sometimes drops me out of enough bandwidth for HD). RAC continues to climb, slowly, but still only 2500 above what it was on Monday -- and I'm running out of APs for it to crunch.
31) Message boards : Number crunching : Some questions about the Geforce GT640 (Message 1466793)
Posted 90 days ago by Profile ivan
it's only one slot wide, so any double-width board won't fit.

Even though it's technically only one slot wide, you want to make sure that there's nothing plugged into those sockets at the edge of the board that might prevent the card from seating all the way.

Good point. There's a front-panel audio and front-panel USB headers that might interfere. OTOH, I've plenty of other machines I can swap it to if it proves problematic.

Well, I got one -- used from an Amazon affiliate for £50 (incl. £5 for postage). Plugged it in, and the machine wouldn't boot (Mint Linux); tried the dual boot of Red Hat Enterprise Linux 7 from an SSD and that worked, but lots of fiddling around and even plugging in an old monitor led to no success, until I tried again to boot from the SSD and it booted Mint from the HDD! These modern motherboards may be a trick too far...

Anyway, it's currently running and now I have two AP jobs running on each GPU, and six MB jobs running on the CPU (hyperthreading). The first jobs appear to be running just slightly slower than half the speed of the GTX560, so that might add another 9,000 or so to the machine's RAC. It's running at 64 C with the fan at 65%; the 560 is running 76 C and 95% fan.
32) Message boards : Number crunching : Some questions about the Geforce GT640 (Message 1464120)
Posted 97 days ago by Profile ivan
it's only one slot wide, so any double-width board won't fit.

Even though it's technically only one slot wide, you want to make sure that there's nothing plugged into those sockets at the edge of the board that might prevent the card from seating all the way.

Good point. There's a front-panel audio and front-panel USB headers that might interfere. OTOH, I've plenty of other machines I can swap it to if it proves problematic.
33) Message boards : Number crunching : Some questions about the Geforce GT640 (Message 1464096)
Posted 97 days ago by Profile ivan
Reason is, I have a spare PCIE-16 slot on my new motherboard but it's only one slot wide, so any double-width board won't fit.

Double check that it is one slot width wide- the standard model is double slot width, but many of the manufacturers do their own heatsink & fans on the models they release.

EDIT- checked your link and it is 1 slot width wide. Given the low power of the card I doubt you'd have any cooling issues, especially with ambient temperatures well below 25°c most of the time.

Yeah, it's not Darwin, but it can get up to 25 C or more in summer here. It'd be nice to push the home PC along a bit in RAC -- the DDR5 GT 640 has a surprising FLOPS rating for the price and power. I'm tempted to swap one into my work PC too, as it has a proprietary [(hp)] power supply which doesn't have GPU power connectors (and physically can't be replaced by a standard PS).
34) Message boards : Number crunching : Some questions about the Geforce GT640 (Message 1464087)
Posted 97 days ago by Profile ivan
I'm thinking of getting one of these:
GT640DDR5 95°C MaxTemp 48W Max Graphics Card Power 384CUDA cores

Specifically, a particular Gigabyte model that now seems to be out of stock at eBuyer. Hmm, on pre-order at Scan. Reason is, I have a spare PCIE-16 slot on my new motherboard but it's only one slot wide, so any double-width board won't fit. I'm just a little bit doubtful as it's very close to the bottom of the PC case and I wonder if it will get enough airflow through the fan. Still, it's only 49 W so it shouldn't need a great amount of cooling.
35) Message boards : Number crunching : CLOSED - SETI/BOINC Milestones [ v2.0 ] - XXVI - CLOSED (Message 1462792)
Posted 100 days ago by Profile ivan
Wow, look at your RAC (atm) Tom:) 999!

Yep my dear Julie ! Next step >> 777 :p (Beta & one other project kill my S@H RAC !)
Not 666 Ivan ! :p
Keep crunching !

Heh! I just checked the statistics page:
62 ivan 90,921 ***111,666,111***
:-)
36) Message boards : Number crunching : Panic Mode On (86) Server Problems? (Message 1462378)
Posted 101 days ago by Profile ivan
Way back in the last century we called it centigrade.
Anyway we all know that water freezes at 32 and boils at 212 degrees. Of course that is all academic when one is deep in a "polar vortex".

Well, that's so contra intuitive...
Water freezes at 0°C and boils at 100°C, simple as that! :þ
Whats so strange about that!? :?
Never get, what it's all about that strange Fahrenheit stuff...

;)

Well, as I recall, Fahrenheit tried to use a phenomenological scale, but I guess physical chemistry wasn't well advanced in those days -- he set 0 F as the lowest temperature a salt(NaCl)/water mixture could exist without freezing, and 100 F as normal human body-temperature. Nowadays we know that phase transitions are much more reproducible, so we use the triple-point of water and the boiling point at 760 mmHg as 0.01 and 100, respectively, on the Celsius scale. (According to Wiki, it's just a bit more complicated than that...)
37) Message boards : Number crunching : List of GPU (Message 1461950)
Posted 102 days ago by Profile ivan
I think the OP was looking for recommendations on a graphics card with which to build a cruncher, including SETI, which uses a CPU. As in when you overnight a package to somebody a common term is using Fedex as a verb, not necessarily Fedex itself. :-)

I remember somebody posting either a link to a website or a list somewhere here on the boards about various graphics cards capabilities. I don't remember where it was, though...

This, perhaps?
38) Message boards : Number crunching : IHenderson's GPU question (Message 1461631)
Posted 103 days ago by Profile ivan
Maybe this list will help you (or at least give you a idea):
http://setiathome.berkeley.edu/gpu_list.php

As might this.
39) Message boards : Technical News : Now it's 2014 (Jan 07 2014) (Message 1461629)
Posted 103 days ago by Profile ivan
Thanks for the update Matt, welcome back.

Indeed!
40) Message boards : Number crunching : CLOSED - SETI/BOINC Milestones [ v2.0 ] - XXVI - CLOSED (Message 1461507)
Posted 103 days ago by Profile ivan
Wow, look at your RAC (atm) Tom:) 999!

Could be worse, could be 666... :-0!


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