Multiple GPUs not working with Arnold GPU BETA

[348842788]

I have a quadro rtx 6000 and a quadro p4000 on my pc , but the arnold gpu only use rtx 6000 ,not both of them, why is that? it is said in documentation that arnold gpu can use multiple gpus,but I can only use my quadro rtx6000. and if I turn "Enable manual device selection"on, an erro like this will show up

// Error: [gpu] an error happened during GPU context setup : Invalid device (Details: Function "_rtContextSetDevices" caught exception: All devices must be RTCore capable.)

[alexis_p]

As the error says "All devices must be RTCore capable" the P4000 is not RTX compatible as far as I know.

Also mixing heterogenous GPUs is almost always causing issues

[teddude75]

I'm using a Quadro m4000 and it works fine. Maybe check your drivers.