Testing Radeon VII on All-Sky Gravitational Wave O3 (O3AS)

pututu
pututu
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Did some tweaking/testing on

Did some tweaking/testing on the single VII over the weekend. Here is an updated setup. Timestamp: see returned results after Jun 10, 6:00 UTC

Bumped from 5 → 6 tasks per gpu. Vram ~ 13.5GB

Bumped memory clock from 1000 → 1100MHz

Board power draw (peak) ~ 165W → ~180W

Average run time per task ~273s → 253s

tictoc
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The random long CPU run-times

The random long CPU run-times that I reported earlier in the thread, were indeed due a lack of CPU resources available for the GPU tasks.  For the last day and a half, I have been running 5x tasks without isolating the tasks to a set number of CPU threads.

The results of running O3AS in an unconstrained environment are more or less directly in line with everything that PUTUTU has posted in this thread.  Average run-time per task of 284s, which puts the PPD at >3M per Radeon VII.

With this run of tasks there is enough headroom to run 6x tasks per GPU.  Sorry for the earlier noise in the thread, as I was mostly going off of what I had observed from earlier versions of the app which did use more VRAM/task.  I just bumped the tasks/gpu up to six and will let that run for the next few days.  

pututu
pututu
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tictoc wrote:The random

tictoc wrote:

The random long CPU run-times that I reported earlier in the thread, were indeed due a lack of CPU resources available for the GPU tasks.  For the last day and a half, I have been running 5x tasks without isolating the tasks to a set number of CPU threads.

The results of running O3AS in an unconstrained environment are more or less directly in line with everything that PUTUTU has posted in this thread.  Average run-time per task of 284s, which puts the PPD at >3M per Radeon VII.

With this run of tasks there is enough headroom to run 6x tasks per GPU.  Sorry for the earlier noise in the thread, as I was mostly going off of what I had observed from earlier versions of the app which did use more VRAM/task.  I just bumped the tasks/gpu up to six and will let that run for the next few days.  

Congratz and happy to hear that you are able to get your two VII cards working on O3AS! I'm sure there are a lot of VII cards out there (previously used in MW and FGRBP1) that could be put to good use to help to speed up the O3AS search, in particular running on linux which can be pita. Well, I'm hoping that someone here can write up a how-to-guide on setting up AMD driver on linux.

GWGeorge007
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pututu

pututu wrote:

....snip.....

Well, I'm hoping that someone here can write up a how-to-guide on setting up AMD driver on linux.

Good luck with that!  I too would be happy and surprised if someone would actually do that.

There are those that do run AMD GPUs with AMD drivers, but they haven't let on to what their secret is in getting them to work.

George

Proud member of the Old Farts Association

Ian&Steve C.
Ian&Steve C.
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Installing ROCm drivers is

Installing ROCm drivers is fairly straight forward. but you have to be careful with what kernel you're running, and what card you have and what version of ROCm supports your GPU. i think they dropped Vega support from the new versions so you have to use an older one.

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GWGeorge007
GWGeorge007
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Ian&Steve C.

Ian&Steve C. wrote:

Installing ROCm drivers is fairly straight forward. but you have to be careful with what kernel you're running, and what card you have and what version of ROCm supports your GPU. i think they dropped Vega support from the new versions so you have to use an older one.

I knew there was some quirky thing about getting AMD GPUs to run right with their drivers, but I didn't know what the issues were until now.  I still don't know if there are any other issues, too.

Thanks Ian!

George

Proud member of the Old Farts Association

Ian&Steve C.
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there was also an issue with

there was also an issue with BOINC GPU detection on some setups. i don't know if that was resolved at the driver or BOINC version

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mikey
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GWGeorge007 wrote: pututu

GWGeorge007 wrote:

pututu wrote:

....snip.....

Well, I'm hoping that someone here can write up a how-to-guide on setting up AMD driver on linux.

Good luck with that!  I too would be happy and surprised if someone would actually do that.

There are those that do run AMD GPUs with AMD drivers, but they haven't let on to what their secret is in getting them to work. 

I saved this from awhile back:

https://linuxconfig.org/amd-radeon-ubuntu-20-04-driver-installation

GWGeorge007
GWGeorge007
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mikey wrote: I saved this

mikey wrote:

I saved this from awhile back:

https://linuxconfig.org/amd-radeon-ubuntu-20-04-driver-installation

Good info!  Thanks Mikey!

George

Proud member of the Old Farts Association

mikey
mikey
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GWGeorge007 wrote: mikey

GWGeorge007 wrote:

mikey wrote:

I saved this from awhile back:

https://linuxconfig.org/amd-radeon-ubuntu-20-04-driver-installation

Good info!  Thanks Mikey!

no problem

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