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I have problem with network rendering. It works fine only for first usage. After reseting LV render or rendering to picture viewer network node doesn't render. It is present, authenticated but always idle :
Rendering with or without network the same time.

ok it seems that it needs some time to start rendering but even after that it have strange usage like throttling :

Hi,
what about VRAM and RAM consumption on the Render-Node while rendering?

What is the speed of the network interface between Workstation and Render-Nodes?

ciao,
Beppe

Hi Beppe,

I did temporary test using very old GTX970 on node side. Tomorrow will arrive RTX4090 and will see how it works. Network 1Gb. RAM usage on node side very low - 1GB vs 64GB total.

hi Guys,

issues like this with lower utilization on render nodes are usually caused by slower network rendering, heavier scenes, higher resolutions..

From provided info it's hard to tell exactly, but to test this, simply lower resolution a lot to 1/4th (going from UHD to FHD) or even more and see.

Usually, the rule of thumb so to speak is to have 10G network as that solves at least bandwidth problem, but as mentioned, it's hard to say if it's the only issue.

When we upgraded our workstations and render nodes to 4090s, we found that the 1 gigabit network was becoming a bottleneck; the cards are so fast that the network couldn't keep the nodes saturated. Adding a small 10 gigabit switch just for render machines and shared storage made a significant difference for LAN rendering.

Be careful when shopping for small 10 gigabit switches. There are many advertised as 10 Gb, when they are actually two 10 Gb ports while the rest are 1 Gb. "10 port 10 gigabit switch," often means 8x 1 gig and 2x 10 gig. That can be perfect for certain networking needs, but not what you are looking for. We wound up getting a 24 port Netgear Prosafe XS728T dedicated to the animation team and bridged it with paired optical SFPs to the two big 1 gig switches that server the whole office. It's a little more than we need, but gives us some wiggle room for the future.