Hi everyone,

The heightfield erode node immediately crashes when I try to view it, giving me the error:

OpenCL Exception: clCreateProgramWithSource (-34)

I tried typing HOUDINI_OCL_DEVICETYPE=“GPU” and HOUDINI_OCL_VENDOR=“NVIDIA Corporation” into the houdini.env file as suggested by a previous post but this did not work.

I'm on a Razer Blade laptop with:
Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz
NVIDIA GeForce GTX 970M
16GB RAM

Any help would be greatly appreciated!

Does HOUDINI_OCL_DEVICETYPE=“CPU” work?

Error still happening with either:

HOUDINI_OCL_DEVICETYPE=“GPU”
HOUDINI_OCL_VENDOR=“NVIDIA Corporation”

or

HOUDINI_OCL_DEVICETYPE=“CPU”
HOUDINI_OCL_VENDOR=“Intel(R) Corporation”

:

Unable to load HFS OpenCL platform.
OpenCL Exception: @*Í8¸ (-32)
OpenCL Exception: clCreateProgramWithSource (-34)
OpenCL Exception: clCreateProgramWithSource (-34)
OpenCL Exception: clCreateProgramWithSource (-34)
OpenCL Exception: clCreateProgramWithSource (-34)
OpenCL Exception: clCreateProgramWithSource (-34)

Okay I solved the OpenCL issue by putting this in houdini.env:

HOUDINI_OCL_VENDOR=“NVIDIA Corporation”
HOUDINI_OCL_DEVICENUMBER=0

However the Erode node still does not work. I'm attaching screenshots of the error.

Does your laptop have Intel + Nvidia? I am having the same issue at home on my laptop too, Windows 10.

I've tried all the combos of the ENV vars to no avail.

I have had this work (setting the env vars) to use Nvidia for OCL in the past, I wonder if something changed in Houdini or on my end (since Windows updates crap without warning )

Cheers,

Peter B

I got Houdini to use Nvidia for OpenCL using the above commands in the env - I no longer get an OpenCL error. But you think the problem (see photos) is still an OpenCL issue?

My laptop has Intel + nVidia, and by default, Houdini will select the device configured in nVidia control panel.

Using houdini.env you can configure which device is used for OpenCL, bypassing the nVidia control panel setting.

Yeah I have my Nvidia setting to always use Nvidia, never the garbage Intel GPU. However, without setting env vars, the OpenCL uses Intel but the OGL uses Nvidia.

I pine for the old days of no Intel GPU at all on a laptop

Cheers,

Peter B

Okay so I've literally tried everything at this point. I get Houdini to use my NVIDIA GTX 970M for OpenCL just fine but it is still giving me the error: Unable to load HFS OpenCL platform.

I have tried older NVIDIA drivers, AMD OpenCL driver, Intel OpenCL Driver, multiple houdini environment variable configurations, changing the NVIDIA settings to use GPU… nothing works. Apparently re-installing Windows worked for someone but I don't have time to do that right now. Anyone have a brilliant solution?

Here's what it shows in the Houdini Command Line:

Unable to load HFS OpenCL platform.
OpenCL Platform NVIDIA CUDA
Platform Vendor NVIDIA Corporation
Platform Version OpenCL 1.2 CUDA 9.1.92
OpenCL Device GeForce GTX 970M
OpenCL Type GPU
Device Version OpenCL 1.2 CUDA
Frequency 1038 MHz
Compute Units 10
Device Address Bits 64
Global Memory 6144 MB
Max Allocation 1536 MB
Global Cache 160 KB
Max Constant Args 9
Max Constant Size 64 KB
Local Mem Size 48 KB
2D Image Support 16384x16384
3D Image Support 4096x4096x4096

Try this, it helped my Houdini become a lot more stable on my hybrid Intel/Nvidia laptop…

https://support.allegorithmic.com/documentation/display/SPDOC/GPU+drivers+crash+with+long+computations [support.allegorithmic.com]

BTW, I always get the “Unable to Load HFS OpenCL Platform” but the GPU works anyway once I set that Allegorithmic tip.

Looks like it works in Houdini 16.5! Thanks for all the help guys

I had this problem as well, and installing 16.5 or setting things in houdini.env as suggested above didn't help.

A workaround for me was to install the Intel OpenCL runtime for my Linux system. Now Houdini uses OpenCL on my CPU, which is much better than nothing (though my GPU supports OpenCL just fine in theory).

I tried several times in my laptop but same result… I finally found an OpenCL Parameter in the “Miscellaneous” menu. I changed my graphic device, restart Houdini,
and now it's gone and I can use the erode tool by example. Hope it will help you.

dubyan65
I tried several times in my laptop but same result… I finally found an OpenCL Parameter in the “Miscellaneous” menu. I changed my graphic device, restart Houdini,

Image Not Found

and now it's gone and I can use the erode tool by example. Hope it will help you.

thank you for that solution it works!!
but should you use integrated gpu or cpu for better performance