Multi-GPU System Benchmarks with and without NVLink

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1

I am new to Blender benchmarking. I wanted to find out the impact of using NVLink in a multi-GPU setup. So I startet with an AIME T502 workstation, using 2x RTX 3090Ti with NVLink and the benchmark result was impressive:

BlenderBenchmark_Linux_220803
BlenderBenchmark_Linux_2208031208×821 67.8 KB

But I’m surprised that the GPU type was not recognized by the benchmark tool. Also it was not visible within Blenders if the NVLink is active (according to the system console it was activated). I would have expected that the VRAM would then be displayed twice as large, which unfortunately was not the case.

Does anyone know whether you can/must activate the NVLink adapter (possibly by a tick) in Blender? And is the display of the video memory with two coupled GPUs maybe just not implemented yet?

2

I just found out that the benchmark tool only uses one GPU, so the upper result is NOT for 2x 3090Ti, but only ONE.