We had been warned that these releases, due to Cuda 3.2 would not supporte multi GPU. In fact, it seems to be worse :
Octane behave like ignoring the external GPUs ! My Cubix with its two GTX480 seems to be not usable with Cuda 3.2 ! When using only my internal GTX260 (my workstation can't host bigger card) I can render (Slowly with bad responsive UI), but when My Cubix box is switched on, and even if I select only one GTX480 for computing in Octane preferences, Octane either crashes on launching, or launches put refuses to load ocs and obj in the GPU memory if it is external.
Non multi GPU is one thing, but in fact, External GPU are not usable too ! This is a really bad news ! My internal GTX260 doesn't provide me enough power for both display render as well as memory size to render my current projects, including the project for the Competition.
I have tried to switch back to Octane 2.3v5 : Same trouble ! So it is really due to the driver with Cuda 3.2 not supporting external GPUs !
2.3v5 with only the weak internal card, works (very slow and unresponsive, obvioulsly).
Next update will have to include not only multi GPU support, but also support of GPU on external bus !
Otherwize, expensives purchases in harware will have been done for nothing !
