O3 almost not using any GPU power on a Mac

GWGeorge007
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[AF>Le_Pommier wrote:

[AF>Le_Pommier wrote:

Jerome_C2005]

(I have to kill those on-going tasks because even after removing my app_config and restarting boinc it was still running 3 at a time, so I cancelled them and now it's OK I have 1 task only running)

Well, I am glad that you now have it running at a normal, or good pace.  Congratulations!

What I was referring to in my statement of you having "0" (zero) cache was this:

I have little or no idea how an Apple/Mac Operating system with running Darwin 23.1.0 works, so I could only presume that it might have an effect.  But I wasn't sure.

Happy crunching!

George

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mikey
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[AF>Le_Pommier wrote:

[AF>Le_Pommier wrote:

Jerome_C2005]

(I have to kill those on-going tasks because even after removing my app_config and restarting boinc it was still running 3 at a time, so I cancelled them and now it's OK I have 1 task only running) 

As you saw that changed with the next batch of tasks but you also could have suspended all but 1 task run it to see what happens and then gone back to 2 or 3 at a time to test things out but  it's alot of babysitting.

[AF>Le_Pommier] Jerome_C2005
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@GWGeorge007 : I have NO idea

@GWGeorge007 : I have NO idea what this 0 cache means there !!

But sadly the single tasks took 15 hours to complete

I have another one running, it's only 80% completed after 12 hours, so it's going to last around 17 hours...

That gives me an astounding RAC of 10k... I honestly cannot continue like this, I think this is too much "computing power" (and electricity) hardly doing anything, I now think my computer is not fit for this application, whatever the real reason behind.

Sad truth, I'll try my luck somewhere else :/

Thanks for your help and advices, much appreciated anyway !

mikey
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[AF>Le_Pommier wrote:

[AF>Le_Pommier wrote:

Jerome_C2005]

@GWGeorge007 : I have NO idea what this 0 cache means there !!

But sadly the single tasks took 15 hours to complete

I have another one running, it's only 80% completed after 12 hours, so it's going to last around 17 hours...

That gives me an astounding RAC of 10k... I honestly cannot continue like this, I think this is too much "computing power" (and electricity) hardly doing anything, I now think my computer is not fit for this application, whatever the real reason behind.

Sad truth, I'll try my luck somewhere else :/

Thanks for your help and advices, much appreciated anyway ! 

Try Ammicable Numbers gpu tasks or even the Moo Wrapper gpu tasks as both are pretty short and pay alot of credits compared to Einstein, when SRBase comes back up again also try their gpu tasks as well.

GWGeorge007
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[AF>Le_Pommier wrote:

[AF>Le_Pommier wrote:

Jerome_C2005]

@GWGeorge007 : I have NO idea what this 0 cache means there !!

But sadly the single tasks took 15 hours to complete

Looking a bit deeper than I normally do, I 'think' I may have found your problem.

Go to:  https://einsteinathome.org/apps.php  and look at your system for doing O3AS tasks.

Mac OS 10.5 or later running on Intel 64 Bit  -  1.07 (GW-opencl-ati-2)

Now go to  https://www.techpowerup.com/gpu-specs/radeon-pro-5700-xt.c3662  and you'll find your GPU.  It says:

"This device has no display connectivity, as it is not designed to have monitors connected to it. Radeon Pro 5700 XT is connected to the rest of the system using a PCI-Express 4.0 x16 interface."

If I am reading this bit of information correctly, your GPU - though it does have 16 GB of VRAM - is bussing through your CPU to produce the output you're getting.  i.e.: Your CPU is slowing down your GPU's output considerably.

I may be totally wrong, but that's what I think.  IOW, with your particular GPU you are probably getting similar slow readings from other projects expecting GPUs to do the tasks because your GPU is putting its output through the CPU first, and the CPU can't handle the speed of the GPU without slowing it down.

If you wish to continue with BOINC projects and want to do GPU tasks as well, I might suggest you getting an NVIDIA GPU with an HDMI or Display Port output.  Just a thought.

George

Proud member of the Old Farts Association

[AF>Le_Pommier] Jerome_C2005
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It is the internal GPU

It is the internal GPU implemented by Apple in this iMac model...

To have a point of comparison, this is an Amicable task that my iMac crunched in 17 mn when the wingman with his "monster" GeForce RTX 4060 Ti (in comparison) crunched in 4.5 mn, nothing close to the 17 hours vs 25 mn of my O3 tasks (examples above). 

GWGeorge007
GWGeorge007
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[AF>Le_Pommier wrote:

[AF>Le_Pommier wrote:

Jerome_C2005]

It is the internal GPU implemented by Apple in this iMac model...

To have a point of comparison, this is an Amicable task that my iMac crunched in 17 mn when the wingman with his "monster" GeForce RTX 4060 Ti (in comparison) crunched in 4.5 mn, nothing close to the 17 hours vs 25 mn of my O3 tasks (examples above). 

Well...  I give up.  As I may have said before, I have never owned or used an Apple/Mac computer and have very little knowledge about how they actually work.  From a cursory standpoint, I have casually looked at some documentations of new Apple/Mac computers, but really didn't do anything with them.

I still think that your "0" cache I showed in my screen capture may have something to do with the problem you have running Einstein, at least the O3AS tasks.  You'll need to find someone else who is very knowledgeable about your computer, and BOINC in general, to figure out if my 'assumption' is correct or not.

Glad your iMac is running an Amicable task as you might expect.  Good luck in finding new GPU tasks that will work as intended. 

George

Proud member of the Old Farts Association

mikey
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[AF>Le_Pommier wrote:

[AF>Le_Pommier wrote:

Jerome_C2005]

@GWGeorge007 : I have NO idea what this 0 cache means there !!

But sadly the single tasks took 15 hours to complete

I have another one running, it's only 80% completed after 12 hours, so it's going to last around 17 hours...

That gives me an astounding RAC of 10k... I honestly cannot continue like this, I think this is too much "computing power" (and electricity) hardly doing anything, I now think my computer is not fit for this application, whatever the real reason behind.

Sad truth, I'll try my luck somewhere else :/

Thanks for your help and advices, much appreciated anyway ! 

This picture bothers me...does it REALLY show you running 20 gpu tasks at the same time?

[AF>Le_Pommier] Jerome_C2005
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@mikey : no this the

@mikey : no this the BoincTasks history page, it gathers details on all the tasks that *did* run on any of your machine (one of the main reasons I use BT !), you can see there the 3 tasks I cancelled (discussed above) and the execution time of each task, the latest I was commenting was the blue row, I confirm I was running one at a time at the end

@george : just for info I looked at my computer detail page on amicable, I don't think there is an equivalent info as the "cache" from einstein detail page for that same machine, it is between memory (RAM) and swap file size, there is nothing between these two on the amicable detail page... 

mikey
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[AF>Le_Pommier wrote:

[AF>Le_Pommier wrote:

Jerome_C2005]

@mikey : no this the BoincTasks history page, it gathers details on all the tasks that *did* run on any of your machine (one of the main reasons I use BT !), you can see there the 3 tasks I cancelled (discussed above) and the execution time of each task, the latest I was commenting was the blue row, I confirm I was running one at a time at the end

Thank that makes sense then

mikey

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