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post #161 of 559
You guys are both correct. 1 7990 GPU processor completes a task in 11ish, 1 7990 CARD completes 2 tasks in 11ish or 5ish per WU. Or think of it as 1 7990 completes on average 1 task every 5m15s for each x16 pci-e slot used.
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post #162 of 559
Quote:
Originally Posted by 4thKor View Post

I'm running one of my dual card rigs with no config file. Thus four tasks at a time, one per GPU. I just watched one close out at 11:17. If each unit does the same then I'm closing two tasks per card in 11:17 or so. Thus divided by two is just under 5:40.

I think you're the one that pointed this out to me in Collatz. tongue.gif

Quote:
Originally Posted by 4thKor View Post

That's is correct. And since I am running two per card at 11:17 or so then my average time is time per task divided by two. Which is 5:40. Think about it rolleyes.gif

Quote:
Originally Posted by 4thKor View Post

Why not? headscratch.gif

Simple answer...

Go to Device Manager> Open your Device List> open your Video Cards.

You will see four video cards listed. windows recognizes a 7990 as four distinct cards calling them 79xx series I believe.

Boinc reads them as separate cards also as does Afterburner. and the documentation from AMD states that they are two Tahiti XT's on a single PCB, essentially two 7970's on a single card crossfired together.

Boinc assigns a separate WU to each detected GPU as an individual. Have you noted that the two WU's will finish at two different times?

When your running two 7990's your running in quad mode four distinct GPU's, four distinct WU's, all ending at different times. Also that average Boinc is reporting is an amalgam of all four WU's so it cannot statistically be used as you are using it. Einstein as a project has it's issues as do all of them, but one of the neat things it does is the WU time reported to boinc is averaged in almost real time.

Which means the average reported in your boinc manager window is as of the last completed WU. Makes it easy to adjust your software as results are immediate.

Your talking about this machine 12517799 which is showing off the cuff about a 660-670 average time. that right in there for 11 minutes give or take running singly (1x)..... Your getting 4 WU's from two cards (4 individual GPU's) at approximally 11 minutes each..

I don't know where I might have confused you in the past, but i didn't mean to....

I would switch it to at least 2x. Your other machine, 12517390 is running 3x right around 1800 seconds per 3 WU's (30 minutes) a 180 second improvement in efficiency. That an extra WU every 9 WU's, 10 for the price of nine.

Even Einstein shows/lists them as individual tasks on individual GPU's.
Edited by Egilman - 4/8/17 at 2:24pm
post #163 of 559
Quote:
Originally Posted by Finrond View Post

You guys are both correct. 1 7990 GPU processor completes a task in 11ish, 1 7990 CARD completes 2 tasks in 11ish or 5ish per WU. Or think of it as 1 7990 completes on average 1 task every 5m15s for each x16 pci-e slot used.

Yes, philosophically this is correct. but the actual mechanics of it works the other way.
post #164 of 559
Quote:
Originally Posted by 4thKor View Post

Why not? headscratch.gif

Thats like saying 2x 1080s complete WUs in half the time since they can do 2x WUs at once.
post #165 of 559
Quote:
Originally Posted by mmonnin View Post

Thats like saying 2x 1080s complete WUs in half the time since they can do 2x WUs at once.

The delineator is "Cards" as in PCIE slots, as compared to GPU's.

Yes a 7990 does two at a time in 11 minutes and a 1080 does one in 10ish or so. (I've got mine down to 9:45 to 9:10 per WU running 2x)

So in essence he is correct even though it mechanically doesn't work that way. The advantages of running a dual card.

BUT: it doesn't work that way on collatz, the 1080 is twice as fast as the Tahiti. which results in the 1080 being a little bit faster than the 7990.

BTW, we've pulled out to a 13.4 million lead in League 2 and a 4.4 million lead overall!!!

GO TEAM! devil.gif
Edited by Egilman - 4/8/17 at 2:42pm
post #166 of 559
My point was simply that a single 7990 surpasses all other cards. And at a third of the cost (I've been picking them up for 250' ish). Granted they eat more power....
post #167 of 559
Quote:
Originally Posted by 4thKor View Post

My point was simply that a single 7990 surpasses all other cards. And at a third of the cost (I've been picking them up for 250' ish). Granted they eat more power....

Point made brother Point Made!

I lost one two weeks ago, but had a spare in the closet. They are one hell of a crunchin card!......

They are what are holding off my upgrade to 1080's.....

Tough to beat them....
post #168 of 559
Awesome results 4thKor.

Well, what can I say, you are all killing it! smile.gif Very well done! I'm sure hoping you get out of our league next year so we have a better chance of leading over at AnandTech. wink.gif
post #169 of 559
Quote:
Originally Posted by 10esseeTony View Post

Awesome results 4thKor.

Well, what can I say, you are all killing it! smile.gif Very well done! I'm sure hoping you get out of our league next year so we have a better chance of leading over at AnandTech. wink.gif

Recruit your folder's. That's where I came from. If you can convince them to try BOINC I think at least a few will be hooked, just like I am. thumb.gif
post #170 of 559

Anyone running a RX-480 or 470 in Linux?  Does this look right for the driver?

 

 

Sat 08 Apr 2017 11:01:06 PM UTC |  | OpenCL: AMD/ATI GPU 0: AMD Radeon (TM) RX 470 Graphics (driver version 2348.3, device version OpenCL 1.2 AMD-APP (2348.3),
Sat 08 Apr 2017 11:01:06 PM UTC |  | OpenCL: AMD/ATI GPU 1: AMD Radeon (TM) RX 480 Graphics (driver version 2348.3, device version OpenCL 1.2 AMD-APP (2348.3),

 

I run the install for the driver based on AMDs instructions but it doesn't look like its installing properly.  I am using a Live session with space allocated for persistence.  But when I restart and look to see if the driver is there I get the following and I am not sure what its telling me.

 

mint@mint ~ $ dpkg -l amdgpu-pro
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                          Version             Architecture        Description
+++-=============================-===================-===================-================================================================
ii  amdgpu-pro                    17.10-401251        amd64               Meta package to install amdgpu Pro components.

 

 

Edit - don't worry about it, I have had problems with my system restarting since installing a 480 last weekend.  I have messed with drivers and various settings and only tried Linux to see if it would fail and it did.  I removed the 480 and it has failed again, 3x in fact.  I can only assume this means my main system has a power supply problem of something worse, and the timing with introducing the 480 is somehow a coincidence.
 

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