Posts by SongBird


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1) Message boards : Number crunching : Dedicated SETI machine (Message 1493233)
Posted 29 days ago by Profile SongBird
pbako, I would advise you to consider energy costs. The new 750TI is so much more energy efficient that I would buy two 750TI(2*155$=310$) instead of a single 780(500$). The two Maxwells would not be much slower than the 780 but in a year's time you will have saved 150$ (not mentioning AC costs) that could be spend on the next latest GPU for crunching. Not to mention that they would probably depreciate much slower than the 780, which would help you unloading them on ebay.

You could also wait a month or too for bigger Maxwells to come out and buy a couple of 250$ cards.

To reiterate. Calculate the energy costs.
2) Message boards : Number crunching : GPU work only? (Message 1488840)
Posted 36 days ago by Profile SongBird
Easiest for me, I have 4 laptops crunching, is to use Lunatics installer and install GPU apps only. Additional work needed is to open the resulting app_info.xml file from ProgramData folder and replace all <count>1</count> with <count>0.5</count> in order to crunch two WU at a time.
3) Message boards : Number crunching : Intel GPU app hosts with failures - please post here (Message 1484752)
Posted 46 days ago by Profile SongBird
You didn't say if you mean MB or AP. Anyway here is a machine with a bunch of intel GPU invalids. I haven't done any investigation as to why they happened. I just removed the offending app. I would still like to crunch on the gpu though...

Computer 7019029

straight to the invalids
4) Message boards : Number crunching : Recent Average Credit (Message 1482749)
Posted 50 days ago by Profile SongBird
EOAEvan, if your machine works 24/7 you could expect
more that 20000RAC but you would still need to be patient and wait for a month for it to climb up to the maximum and you are only several days in...
5) Message boards : Number crunching : AMD 64 Processor - Circa 2005 - Will it crunch? (Message 1473068)
Posted 73 days ago by Profile SongBird

I think "entire hardware architecture" would be referring to CPU, motherboard, & BIOS. Which all are required to run a 64-bit OS.

I was trying to assertively address the implication that there might be a 64 bit CPU running on a partially(the opposite of "entire") 64bit "hardware architecture". To reiterate. If the CPU is 64 bit on a running computer there is no room for worry if it is an "entire hardware architecture". In any case, you are right, there are a whole bunch of stuff that are required to run a CPU capable of executing 64 bit instruction set and you can slice it in all kinds of ways. From "CPU, motherboard, & BIOS" to "CPU, north bridge, south bridge, BIOS" to... you get the idea.
6) Message boards : Number crunching : AMD 64 Processor - Circa 2005 - Will it crunch? (Message 1472953)
Posted 74 days ago by Profile SongBird
Is this machine only going to be used for SETI, or do you have another use for it as well?

If it's just to run SETI, then that $200 is just money down the drain, it will give you no more crunching performance.

If you spend the $200 on a mid range graphics card, you will get maybe a 10X boost?

I second that.

My home computer is a 64bit socket 939 Athlon X2 3800+. There is no way in hell I'm using it for SETI. I wanted it to contribute so I bought a second hand GTX 650TI boost for 130$(stuff are more expensive here in Europe), set it to GPU only, and it does about 8700RAC.

If you are going to use this for SETI only I would suggest you verify that you have a PCI Express slot on your motherboard and buy a second hand GTX 650TI Boost for no more than 80/90 bucks off e-bay. Make sure it's cheap - there are some insane offers out there.

Just because it says AMD 64, I don't know if the entire hardware architecture from HP in 2005 was 64 bit.

There is no such thing as "entire hardware architecture" being 64 bit. If your CPU is 64bit then you can install 64bit OS and can address large amounts of RAM. That is it.
7) Message boards : Number crunching : Astropulse only machine (Message 1472270)
Posted 75 days ago by Profile SongBird
The message was in red so I kind of assumed it was a fatal error. What did they say about assumption being the mother of all f**k ups... Anyway, I'll wait for a week and will get back to you if I get no work :)
8) Message boards : Number crunching : Astropulse only machine (Message 1472259)
Posted 76 days ago by Profile SongBird
I should have mentioned. The OS is a 64 bit Windows 7. GPU is ATI.
9) Message boards : Number crunching : Astropulse only machine (Message 1472256)
Posted 76 days ago by Profile SongBird
Hi,

I want to setup an Astropulse only GPU cruncher. I tried using Lunatics installer and leaving only the GPU AP app. However BOINC complains that there is no MB app and does not start working. Next thing I come up with is to install GPU AP app and some MB app for CPU and somehow prevent the CPU from crunching. This has the drawback that I'll be thrashing MB WU (timeout) which I know some people would feel strongly about...

In any case BOINC requiring me to have a MB app leads me to believe that what I'm trying might not be legal. Is it? If it is, what would be the best way to do an AP only GPU cruncher?

Thanks!
10) Message boards : Number crunching : Intel GPU error (Message 1471140)
Posted 78 days ago by Profile SongBird
According GPU-Z 0.7.5
Temperatures for computer 6863424 are:
GT 630M - 73C
Intel GPU - 75C

On the other host:
Computer 7197010
GTX 760M - 67C
Intel GPU - 69C (this only uses about 4W for 95% utilization, cool stuff)
11) Message boards : Number crunching : Intel GPU error (Message 1471110)
Posted 78 days ago by Profile SongBird

3359475138 <- This one is definitely missing the file "AstroPulse_Kernels_r2083.cl" for compilation.

The file is in the "C:\ProgramData\BOINC\projects\setiathome.berkeley.edu"...


For the other one's i don't know the reason for erroring out.
I see, the tasks are restarted a lot of times. Check your system for driver restarts and eventually overheating of the intel GPU.

BOINC is set to only use GPU while the computer is not in use so everytime I do something the computation stops. I also stopped the BOINC manager (with tasks) a number of times to do some stuff. Could these be counted as restarts?
12) Message boards : Number crunching : Intel GPU error (Message 1471098)
Posted 78 days ago by Profile SongBird
Today I installed intel_gpu astropulse OpenCL app. I've already got 3 errors. The app I'm using is 2083 downloaded from Mike's website. I'm using it, because I want to crunch only on GPU and don't know of any other way that with lunatics and aimerge.cmd.

Can someone help me find out what is wrong?

The tasks are:
3360213456
3359475138
3359182142
13) Message boards : Number crunching : Rescheduling Hosts - Bad Practice (Message 1470156)
Posted 81 days ago by Profile SongBird
It has 109 tasks In progress. I thought the whole point is that there is a maximum of a 100.

Anyway. This is actually my machine. I was doing some stuff I do not fully understand in order to use a beta Intel_GPU app and was just wondering if I've been in fact rescheduling... As you might have picked up I'm not much of a specialist in all this :D

Thanks!
14) Message boards : Number crunching : Rescheduling Hosts - Bad Practice (Message 1469950)
Posted 81 days ago by Profile SongBird
Is this machine rescheduling?
15) Message boards : Number crunching : GTX 780 and GT520 on same motherboard? (Message 1462935)
Posted 99 days ago by Profile SongBird
I believe I read it would not be wise to put two different graphics cards on the same motherboard unless they were pretty evenly matched. Does that mean it would not be okay to put a 780 and 520 on the same motherboard?

I think you are thinking of SLI. SLI requires (with some caveats) that same graphic cards are used. However, if you are only using them for SETI, people will tell you to leave them separate. Even if they are the same GPu... What I'm trying to say is that in my humble opinion this should work, so if you are sure your power supply could handle it, go for it. Install Lunatics apps and select only GPU apps (CUDA42), leaving the CPU free to feed two WU per GPU...
16) Message boards : Number crunching : RAC for GPU only GTX 650 TI Boost? (Message 1461142)
Posted 103 days ago by Profile SongBird
How many instances are you running at the same time ?

I'm running 2. Don't see the point of running more. The code is highly parallel anyway and the GPU utilization is in the high nineties. I'm using the CUDA50 app from the latest Lunatics optimized apps.
17) Message boards : Number crunching : RAC for GPU only GTX 650 TI Boost? (Message 1461133)
Posted 103 days ago by Profile SongBird
Here is the machine in question.
18) Message boards : Number crunching : RAC for GPU only GTX 650 TI Boost? (Message 1461129)
Posted 103 days ago by Profile SongBird
Hey,

Are there people there crunching with a GTX 650 TI Boost 24/7 with the GPU only. What kind of RAC does that translate to? I have such a card for the last two weeks and it has only gone up to 5745 RAC which I think is low. Is it possible that it hasn't yet leveled?

Thanks!
19) Message boards : Number crunching : GTX780Ti availabler Nov.7th (Message 1460007)
Posted 107 days ago by Profile SongBird
Hi Guy. I noticed that you are using cuda32 app. Why is that? I thought the 780TI should be more efficient using cuda50.
20) Message boards : Number crunching : Quick question about the GPU count (Message 1459981)
Posted 107 days ago by Profile SongBird
4 x 690 cards, 8 GPUs

[Edit:] well looking closer, that particular machine has 2 x 590s and 2x690s, but the counts stand at least.


Pardon me for the ignorance but how do you "look closer" to find the different GPUs installed?

The same question popped up in my head. I assumed this to be public information so it was just a matter of clicking here and there and I got to a Stderr output of a random task where it has the CUDA devices enumerated. I would guess this is where he got this info too...

It's cool learning new stuff :)


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