Hi guys,

I post here because I don't know if my problem can be sent to support as a bug.

My system:

AMD 8350 FX
16 Gb Gskill DDR3 1800 (2x8Gb)
AMD Radeon R9 270X
SO: Windows 7 SP1 x64


When simulating fluids (standard flat tank from the shelf tab) my system freezes completely. I have to restart from the reset button of my PC, so I don't have any crash log on the temp dir to post here or send to support.

Also, I noticed if I create the flat tank from the shelf, but in case of start simulation I click on the “use opencl” option box on the fluid solver, it's an instant system freeze aswell.

I've tried with the three latest AMD display drivers: 14.4, 14.9 and the latest Omega drivers 14.12, all of them with exactly the same result: system freeze.

My system works fine, I don't think it's a hardware issue because I use this same machine to play sim driving games (Assetto Corsa and rFactor2) and I can play them at 1080p with GPU occupancy of 100% for hours without any glitch or temp problems.

Other times Houdini just closes with segmentation fault by only navigating the interface and seeing the tooltips, with just a blank scene.

Its driving me crazy trying to figure out where the problem is. I'm 99% sure it's AMD driver or OpenGL related, so I came here to ask if someone have a similar problem or somebody can give me some tips to test.

Thank you very much and please excuse my english :-(

New update on the subject.

Tried latest daily build on Linux Mint on the same machine: the result is the same, system freezes while simulating a flip tank.

I changed several parameters on the flip fluid and I can reproduce the system freeze when setting particle separation < 0.12 in the flip object node inside the AutoDopNetwork.

This behaviour is the same both on Windows 7 x64 and Linux Mint 17.1 x64

Is anyone having a similar issue with an AMD FX and R9 270X?

I attach the hip file I'm testing in case somebody want to check it out. My system freeze when playing the simulation in a loop for a while.

Thanks in advance.

PS: To discard a hardware problem I ran FurMark and Prime95 at the same time to full stress the entire system and it was all Ok, so seems its not a hardware problem.

Sounds like you're running out of Ram or Vram.

MartybNz
Sounds like you're running out of Ram or Vram.

Hi Marty, thanks for your response.

I had checked it while running Houdini with the test hip file I posted. Vram topped at 350Mb, and Ram to 3.5Gb

It's Ok memory wise. I checked RAM with Memtest too to discard a hardware problem.

I'm lost at this problem :-(

Thank you.

Working fine on OsX 10.10.2, Nvidia 980, H14.0.242

MartybNz
Working fine on OsX 10.10.2, Nvidia 980, H14.0.242

Thanks for checking it.

Update on my problem:

Installed Real Flow 2014 Demo to check if it works with my setup and see if hardware and drivers are working ok with it. Did a 1.2M particle simulation, 8 threads and OpenCL enabled and all was fine.

ATM I'm 99% sure is a Houdini only problem with my hardware/drivers setup.

Anyone with a similar hardware setup is kind enough to test the hip file I posted earlier?

Thank you very much.