Question Stress testing GPU without using GPU for video

[rt0218]

I am trying to stress test 2 different GPUs with the limitation that they cannot be used for video, as the set up does not allow access to the video ports. They are both MxM models, and a discrete VGA chip is used as the primary video out. Is there a way to run a benchmark "in the background" so to speak, where the GPU would be doing work (could be anything but a benchmark seems like the easiest option) but it it would not appear on screen? Are there any benchmarks that enable selecting a specific GPU? It also has to run in Centos/RHEL 7

 

[JohnBonhamsGhost]

without a display attached to the card, your GPU will not fully power up. clocks and memory will stay at 0Hz.

there is no way to have a dedicated GPU doing the processing while your integrated GPU handles the display output.

why does this particular setup not allow access to the dedicated GPU's video ports?

 

[rt0218]

without a display attached to the card, your GPU will not fully power up. clocks and memory will stay at 0Hz.

Even if I have drivers installed? I can monitor one and I see the temperature rising even when idle.

there is no way to have a dedicated GPU doing the processing while your integrated GPU handles the display output.

I don't really care about their performance, I just need them to be under some sort of load, so I wouldn't even need video from the benchmark out of the embedded video.

why does this particular setup not allow access to the dedicated GPU's video ports?

Without getting into too much details, this is more of an unconventional server set up and the GPUs are meant for computation only (not crypto)

 

[JohnBonhamsGhost]

Even if I have drivers installed? I can monitor one and I see the temperature rising even when idle.

being idle just means there are no processes running and taxing the card/system. but there is still an OS GUI running to the display.
if there is no actual display attached to the GPU, there is zero graphical processing going on so GPU's Core and Memory stay at 0MHz frequency.

I don't really care about their performance, I just need them to be under some sort of load, so I wouldn't even need video from the benchmark out of the embedded video.

this has nothing to do with performance capability. when the display is attached to the CPU's integrated graphical processor and not the dedicated GPU card, there is still 0% dedicated GPU processing going on.

Without getting into too much details, this is more of an unconventional server set up and the GPUs are meant for computation only (not crypto)

then find a new storage unit where the dedicated GPU's ports are accessible.

 

[rt0218]

being idle just means there are no processes running and taxing the card/system. but there is still an OS GUI running to the display.

I understand that part, the GUI is not running through the GPU and it was not intended to handle video

if there is no actual display attached to the GPU, there is zero graphical processing going on so GPU's Core and Memory stay at 0MHz frequency.
this has nothing to do with performance capability. when the display is attached to the CPU's integrated graphical processor and not the dedicated GPU card, there is still 0% dedicated GPU processing going on.

I know I don't have video from it, I just want to know if a program/benchmark exists that will do anything on my GPU without video.
I have an OpenCL program that I can see running on the GPU, but I have little experience with it. If there are no other options that exist then I guess I will have to learn.
As a note, the discrete graphics chip is not integrated, it is a separate IC

then find a new storage unit where the dedicated GPU's ports are accessible.

Without going into details, that is impossible. As I said before, the GPUs are not designed for video and are there for computation only