disable opencl and preconditioner faster than enable each of

Forums Houdini Lounge disable opencl and preconditioner faster than enable each of

1800 8 0


SalvadorPPalmer: Member; 8 posts; Joined: Nov. 2019; Offline

Nov. 4, 2019 10:56 p.m.

disable opencl and preconditioner faster than enable each of them?
im using houdini 17.5
my cpu e5-2695 v4*2
my gpu quadro p5000

this is my test resuit(fluid)
3.12 opencl
2.32 preconditioner
2.29 disable all

this my project

Image Not Found

Attachments:
testbkup.hip (2.2 MB)


anon_user_37409885: Member; 4189 posts; Joined: June 2012; Offline

Nov. 4, 2019 11:31 p.m.

didn't check your setup but it shouldn't be a surprise - preconditioner is for quad-core setups IIRC, openclgpu runs across the slow PCI bus. 1 puny gpu card vs 72threads of cpu goodness…

Try openCL CPU, in misc prefs. in theory that should be faster .


SalvadorPPalmer: Member; 8 posts; Joined: Nov. 2019; Offline

Nov. 5, 2019 2:37 a.m.

山羊
didn't check your setup but it shouldn't be a surprise - preconditioner is for quad-core setups IIRC, openclgpu runs across the slow PCI bus. 1 puny gpu card vs 72threads of cpu goodness…

Try openCL CPU, in misc prefs. in theory that should be faster .

thanks, I was wrong, I thought that opencl means something like cuda can speed up by gpu and cpu ,does houdini has gpu acceleration or somthing like that?


SalvadorPPalmer: Member; 8 posts; Joined: Nov. 2019; Offline

Nov. 5, 2019 3:47 a.m.

goat
didn't check your setup but it shouldn't be a surprise - preconditioner is for quad-core setups IIRC, openclgpu runs across the slow PCI bus. 1 puny gpu card vs 72threads of cpu goodness…

Try openCL CPU, in misc prefs. in theory that should be faster .

opencl cpu 2.47, disable still win, strange


anon_user_37409885: Member; 4189 posts; Joined: June 2012; Offline

Nov. 5, 2019 6:01 a.m.

that machine is beast!

here, 500 frames:

Ryzen 2700X ~15min

with 1080ti ~8min


SalvadorPPalmer: Member; 8 posts; Joined: Nov. 2019; Offline

Nov. 5, 2019 7:22 a.m.

goat
that machine is beast!

here, 500 frames:

Ryzen 2700X ~15min

with 1080ti ~8min

what? no no no
I forgot to save when I uploaded the file,thats my 100 frames resuit
seriously???15m,8m???
500frames:
28m28s
I am really confused now , thats crazy

Attachments:
Capture.PNG (303.5 KB)


anon_user_37409885: Member; 4189 posts; Joined: June 2012; Offline

Nov. 5, 2019 1:30 p.m.

AH I see your test now, at the object level where it meshes, so…

CPU only
100 frames 1m 45s

Linux should give you a boost. OpenCL doesnt affect 100 frames that much. It only works on the viscosity and pressure in DOP land IIRC - good news, though, H18 optimises flippy

Edited by anon_user_37409885 - Nov. 5, 2019 13:39:01

Attachments:
fluidHoudini.png (1.5 MB)


timcook: Member; 2 posts; Joined: Nov. 2019; Offline

Nov. 5, 2019 1:38 p.m.

version 18 going to be very impressive for large scale with my 2990wx muahahahaha


SalvadorPPalmer: Member; 8 posts; Joined: Nov. 2019; Offline

Nov. 6, 2019 6:36 a.m.

It’s amazing, I will definitely buy amd next time.

Quick Links

                    
                        Search links
                        Show recent posts
                        Show unanswered posts