I completely reinstalled everything including windows on my workstation
now Houdini doesn't recognize my 1080 Ti
has this something to do with windows being windows in it's newest form?
NVidia Driver is also the latest (416.94)
no openCL device available2364 8 3
Thank you for reporting this issue. It turns out that Microsoft changed their specifications for where graphics drivers can write to the registry, which in turn means changes were required for the OpenCL ICD loader (the small bit of code that loads the various OpenCL drivers from different vendors). We ship a custom version of that ICD loader under Linux and Windows so that the built-in CPU OpenCL driver is always available, but have not yet updated it to obey Microsoft's new conventions. We're working on a fix that should be out soon.
By the way, as a temporary workaround, you can go to the bin directory of your Houdini installation (usually something like C:\Program Files\Side Effects Software\Houdini 17.0.356\bin) and temporarily move or rename the OpenCL.dll file there. That will cause Houdini to use the system-wide OpenCL loader installed by NVIDIA, which should find your GPU driver. You'll lose the built-in CPU driver, however, but you might not care about that.
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