All things RX 500 series (460/560/570/580)

mikey
mikey
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Tom M wrote: I was dead flat

Tom M wrote:

I was dead flat on RAC at just under 1,000,000 on a pair of Rx 580's under Linux (8 GB)

The 2 Rx 580's under Linux on the top 50 list are doing 1,100,000 or so.

I looked at his tasks.  He was/is consistently getting lower CPU times than I am.  (Intel cpu vs. Amd cpu).

So I am now set at 1 cpu / gpu task.  2 GPU tasks per card.

I am now using some AMD GPU tools that another Boinc person created to toggle the gpus to "Compute" from "3d screen" the apparent default.

Is there anything else I can do to make it up to the magic 1,100,000 plateau? (Besides adding another card).

Tom M 

Have you tried 3 tasks per card yet or is it maxed out at 2 tasks? It's hard to know exactly what the top person is doing without talking to them but they could also be overclocking the cards to do it, something I would not recommend if you intend keeping them around for the long term.

Tom M
Tom M
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mikey wrote: Tom M wrote: I

mikey wrote:

Tom M wrote:

I was dead flat on RAC at just under 1,000,000 on a pair of Rx 580's under Linux (8 GB)

The 2 Rx 580's under Linux on the top 50 list are doing 1,100,000 or so.

I looked at his tasks.  He was/is consistently getting lower CPU times than I am.  (Intel cpu vs. Amd cpu).

So I am now set at 1 cpu / gpu task.  2 GPU tasks per card.

I am now using some AMD GPU tools that another Boinc person created to toggle the gpus to "Compute" from "3d screen" the apparent default.

Is there anything else I can do to make it up to the magic 1,100,000 plateau? (Besides adding another card).

Tom M 

Have you tried 3 tasks per card yet or is it maxed out at 2 tasks? It's hard to know exactly what the top person is doing without talking to them but they could also be overclocking the cards to do it, something I would not recommend if you intend keeping them around for the long term.

I think I will run the current "maximum" setup for several more days up to next Saturday.  If the RAC doesn't show a significant difference I think 3 threads will be the next week long test.

I have had limited success in using overclocking utility's.  I am running under Linux which also means I can't use the standard Windows Radeon tools to try out various overclocking/undervolting etc experiments.

Tom M

 

Live long and Prosper.

A proud member of the O.F.A. (Old Farts Association)

It ain't the heat it's the humility. - Yogi Berra

 

mikey
mikey
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Tom M wrote:mikey

Tom M wrote:

mikey wrote:

Tom M wrote:

I was dead flat on RAC at just under 1,000,000 on a pair of Rx 580's under Linux (8 GB)

The 2 Rx 580's under Linux on the top 50 list are doing 1,100,000 or so.

I looked at his tasks.  He was/is consistently getting lower CPU times than I am.  (Intel cpu vs. Amd cpu).

So I am now set at 1 cpu / gpu task.  2 GPU tasks per card.

I am now using some AMD GPU tools that another Boinc person created to toggle the gpus to "Compute" from "3d screen" the apparent default.

Is there anything else I can do to make it up to the magic 1,100,000 plateau? (Besides adding another card).

Tom M 

Have you tried 3 tasks per card yet or is it maxed out at 2 tasks? It's hard to know exactly what the top person is doing without talking to them but they could also be overclocking the cards to do it, something I would not recommend if you intend keeping them around for the long term.

I think I will run the current "maximum" setup for several more days up to next Saturday.  If the RAC doesn't show a significant difference I think 3 threads will be the next week long test.

I have had limited success in using overclocking utility's.  I am running under Linux which also means I can't use the standard Windows Radeon tools to try out various overclocking/undervolting etc experiments.

Tom M

The key to trying 3 at a time is all about the time it takes to finish them so write down the times you are doing now with the card doing 2 tasks at the same time so you can easily compare when you try doing 3 at a time. The key is they will take longer but how much longer does it take?

I know there are Linux utilities too but I also have no clue what they are.

cecht
cecht
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Tom M wrote:I have had

Tom M wrote:
I have had limited success in using overclocking utility's.  I am running under Linux which also means I can't use the standard Windows Radeon tools to try out various overclocking/undervolting etc experiments.

In addition to trying 3X suggested by Mikey, which should help, you can do under/over clocking on your Linux host with Ricks-Lab GPU Utilities

But before changing clock frequencies or voltages, I would suggest simply limiting the top shader clock speed by using a state mask. For Gamma-ray searches, I've found that lowering the top SCLK state of RX 570s from 7 to 6 actually improves performance. I'm pretty sure 580s would respond the same way. Using Ricks-Lab gpu-pac utility, enter 0,6 in the SCLK Set Mask field. I've tried overclocking these cards, but the gains are negligible. (Overclocking is worth a try, however, on RX 460s.). Also, I've had no luck changing memory clock masks or speeds. Best of luck hitting 1.1M!

Ideas are not fixed, nor should they be; we live in model-dependent reality.

Tom M
Tom M
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OBTW,  apparently you can run

OBTW,  apparently you can run Rx 580's on the same system as Rx 5700's (Under Windows 10) just not Ubuntu drivers. Here (3 R5700s and 2 R580s)

Live long and Prosper.

A proud member of the O.F.A. (Old Farts Association)

It ain't the heat it's the humility. - Yogi Berra

 

MontanaDoug
MontanaDoug
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I have been following this

I have been following this thread (and a ton of others) since you're touching a number of my concerns and appear to have a very similar hardware setup.  I don't want to interrupt the author here so I'll open a new topic "System stability and efficiency".

Sorry for the "break-in".

Stay safe, Doug

Tom M
Tom M
Joined: 2 Feb 06
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MontanaDoug wrote: I have

MontanaDoug wrote:

I have been following this thread (and a ton of others) since you're touching a number of my concerns and appear to have a very similar hardware setup.  I don't want to interrupt the author here so I'll open a new topic "System stability and efficiency".

Sorry for the "break-in".

Stay safe, Doug

Not a problem.  And for anyone who can't "find" the thread it is here

Live long and Prosper.

A proud member of the O.F.A. (Old Farts Association)

It ain't the heat it's the humility. - Yogi Berra

 

Tom M
Tom M
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Tom M wrote: OBTW, 

Tom M wrote:

OBTW,  apparently you can run Rx 580's on the same system as Rx 5700's (Under Windows 10) just not Ubuntu drivers. Here (3 R5700s and 2 R580s)

While the Rx 580 8GB is not happy running 3 GR threads (apparently) on the video cards (some of the tasks were stalling with like 6 hours on the clock before I aborted them) they will run 2 indefinitely.

After I swapped in a different MB with an AMD 2700x installed I hooked up the 2 Rx 580's again and am running "everybody" with 2 threads.

The RAC has headed north again :)   I am currently ballparking it to peak at (I hope) around 2,700,000 RAC simply because the 3 Rx 5700's have been peaking around 2,000,000 and the Rx 580's peaked around 800-900,000 on two different machines.

Tom M

Live long and Prosper.

A proud member of the O.F.A. (Old Farts Association)

It ain't the heat it's the humility. - Yogi Berra

 

Tom M
Tom M
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I have a system that will be

I have a system that will be upgrading to running lots of Rx 570/580 GPUs (6 to start with).  And the odd Nvidia gpu for the moment.

I have been browsing the Top 50 list to see what model of Rx 500 seems to be very productive.

I think I have seen a pair of Rx 480s with 4MB of memory being very productive.

Right now it looks like this system will be an "all" Gravity Wave gpu cruncher.

1) Should I be limiting my Rx shopping to the Rx 500 series or should I really be taking a look at the Rx 460 et al?

2) Should I be limiting my Rx shopping to "XFX" models?

3) How many threads are you running on your Rx 4xx/5xx?  (presumably 1 or 2).

Given the price surge on GPUs, I am certainly trying to be a bottom feeder on the capital costs.  I would like to decide what make/model of Rx 4xx/5xx I should be shopping for to grow this system to about 9 GPUs (which is all I can comfortably accommodate at this time).

Discussion?

Tom M

 

 

Live long and Prosper.

A proud member of the O.F.A. (Old Farts Association)

It ain't the heat it's the humility. - Yogi Berra

 

Jim1348
Jim1348
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Tom M wrote:Given the price

Tom M wrote:
Given the price surge on GPUs, I am certainly trying to be a bottom feeder on the capital costs.  I would like to decide what make/model of Rx 4xx/5xx I should be shopping for to grow this system to about 9 GPUs (which is all I can comfortably accommodate at this time).

My knowledge is decidedly limited, but the last time I shopped the RX 570 seemed to be the best for output verses price, and power dissipation too, which is important to me.  

I hadn't used it for awhile, but thought I would try it as a second GPU on a new Win10 installation, with a GTX 1650 Super being the other card.  Big mistake.  It worked for a few hours, and then I did something wrong, though I don't recall what.  (Though it was probably trying to upgrade to the latest driver).  I spent the next two days getting the OS reinstalled and back up to speed, more or less.

I almost threw it out, but saw the prices of cards, and decided to hang onto it (I have two).  I think I will try one or both on a Linux machine, but never in a mixed environment. 

Good luck.

 

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