hi, the new h12 flip solver contains many microSolver with use openCL off by default without providing an option on flipSolverDop to enable it. Does it comes with any insight not to use it??

thank you

Are you on OSX? It's not supported on OSX.

I am sorry didn't make my question clear,,

on smoke solver advanced tab, there is use openCL checkbox connect to its inner microsovler to enable gpu calculation. on FLIP solver, there is not such option provide, thus If I like to use gpu, I have to edit the FLIP solver HDA and go inside to switch those microsovler one by one. Is there any reason, why default FLIP solver provide without use openCL option.

I guess, its not setup because not suggested?? I am not sure the reason, that's what I like to know. Thank you.

I am on ubuntu64 by the way

Although FLIP uses some of the OCL enabled micro-solvers, its's mostly computed on CPU. Considering OCL requires data to be copied onto GPU and back, enabling these small parts of computation for GPU makes no sense, and potentially would slow down your simulation.

OpenCL plays nicely with Pyro/Smoke Solvers which consist mostly with OCL capable micro-solvers, so in some best cases (basic sims without moving collisions), all computation can be done on GPU side. Then it becomes really fast.

jorosy
hi, the new h12 flip solver contains many microSolver with use openCL off by default without providing an option on flipSolverDop to enable it. Does it comes with any insight not to use it??

thank you

Check this out:
http://www.sidefx.com/index.php?option=com_content&task=view&id=415&Itemid=269 [sidefx.com]

Here's the relevant bit of info:
GPU Acceleration and OpenCL

“On certain graphics cards, Houdini can use the GPU to dramatically increase the performance and speed of your Pyro FX simulations. Pyro FX is currently the only area of Houdini that uses GPU acceleration via OpenCL but it may be expanded to other areas in the future.”

hi, guys thanks for taking your time to reply

to SYmek, thanks for making the point really clear to me and is exactly the piece of info I am seeking for

to chrism, thanks for pointing that page to me, I came over that page once, and must be blind without notice the section on openCL and video card info before