Delivery renders to a halt

Hi all,

Just installed Resolve 15 beta (15.0.0B.037) on an iMac 2017 i7 4,2GHz, 64 GB RAM running OS 10.13.3 with 1x Radeon Pro 580 8GB internal GPU and external Nvidia GTX 1080ti 11GB mounted in a Akitio Node Pro wired through a Thunderbolt 3.

In the previous version, 15 beta 1 I was performing h264 1080p renders for frame.io at ca 6mbit from RED Scarlet-W 5K footage and had really speedy renders at about 12-15fps. These have now come to a crippling speed of 0-2fps using either the internal Radeon Pro (Nvidia card) disconnected or even when configuring to render with CUDA and manually choosing the Nvidia card. Unsure what is broken in this version...

Is anyone else having similar issues?

[Peter Chamberlain]

Can you physically remove one of the GPUs and test again?
Resolve is not desinged to use different types of GPUs like you have.

Can you physically remove one of the GPUs and test again?
Resolve is not desinged to use different types of GPUs like you have.

Yes I have removed the eGPU as well and I get the same performance with the internal GPU in the 2017 iMac (AMD Radeon Pro 580 8GB). I have tried setting it to Auto, OpenCL and Metal and I seem to get the same performance across these options (0-2fps) rather than the usual 8-12fps with the AMD and 12-15fps with the unsupported solution involving an eGPU.

I also tried uninstalling this version of Resolve and then reinstalling it, rebooting computer etc. Same results. What action do you recommend to take?

[Peter Chamberlain]

Can u try 15b1 again to make sure it’s not just the source codec. Export a drp and import that into 15b1

Can u try 15b1 again to make sure it’s not just the source codec. Export a drp and import that into 15b1

I tried that, also by running that same (exported) project under OSX and Windows10 (same hardware) with both Beta1 and 2. I got the very same results.

When I however created a new empty project and tested to export the R3D files into h264 1080p 6mbit sequences the delivery FPS was back to normal. So it seems that the project somehow corrupted something in the upgrade from Beta1 to Beta2 in the particular project. With the internal AMD Pro 580 8GB I get ca 12-13fps at delivery to (h264 1080p 6mbit) and the fps counter on delivery page when rendering seem to show correct speed.