Thibault Houdon

Hi guys,

I'm doing the pipeline for a projects we'll be doing this year at university using Houdini.

I'm looking into distributed rendering using Mantra. I'm trying to use multiple computers to render one frame on my computer by using the -H flag in Mantra.

My mantra command looks something like mantra -H 320-A1,320-A2,320-A3 and so on.

However I always get the following error:

mantra: Host 320-A1: invalid version detected 0.0.0 (not 9.0.0).
mantra: No remote hosts are available for rendering.

I tried to query informations from another computer using hserver by doing hserver -h 320-A2 -l and it says “Authorization failed”.

It looks like the computers have issues communicating with each others. I checked the 1714 and 1715 ports and they look fine.

We are currently Houdini 14.0.395, and the license server has the same version as our installed version of Houdini.

Do you guys have any idea what am I doing wrong?

Thanks a lot!

I guess you're write about the environment variables not being picked up, it looks like it doesn't execute some setup functions or something like that when starting Houdini from my script.

Thanks for the help

Hi there

I'm running into a strange error with Houdini and digital assets. I'm trying to open a scene containing a digital asset and when I load it manually with cmd.exe (houdini.exe scene.hip) everything works perfectly.

However I'm trying to open it inside a python script so I'm using the os module to do the same thing (os.system("houdini.exe scene.hip)). But when the scene opens it says that my HDA has incomplete asset definition.
If I right click and check type properties it says my hda is embedded.

Do you have any idea why this work by loading the scene manually either by loading it in houdini or opening it with a command prompt but not with my script ?

Thanks for your help!