Yes, one of the cool features in Houdini is OpenCL, it gives more performance than just using the CPU.
But unfortunately, if our GPU is bad. We don't get any profit. For example, if you run out of VRAM, it will automatically crash. Therefore we have to turn off this feature. And forced to only use the CPU only /
Just put a few lines of code in "houdini.env" it can be found in "Document (Documents your users ) / Houdini Version " for Windows
HOUDINI_OCL_DEVICETYPE=CPU
To make sure it runs properly using the CPU can be seen in "Houdini Window -> Help -> About -> Show Advanced" scroll down until there is OpenCL Platform.
Now it should run using the CPU.
If it's on a laptop then there will be other problems. Because the system on a laptop is not the same as on a computer. OpenCL and a strange popup will appear when you press the "play" button, the same way we just have to convince Houdini that our device has a GPU, enter the line of code in "houdini.env"
HOUDINI_OCL_VENDOR = NVIDIA Corporation
HOudinI_OCL_DEVICENUMBER = 0
This will force Houdini to use cuda.
Now the weird popup is gone.