Forum

Author Topic: GPU acceleration for tiled model generation  (Read 3776 times)

jbak9141

  • Newbie
  • *
  • Posts: 18
    • View Profile
GPU acceleration for tiled model generation
« on: March 24, 2019, 04:56:45 PM »
Hi Alexey,

I've been running a few tests generating tiled models with GPUs enabled (4x Tesla M60) on my local test bench and don't seem to be able to get any noticeable speed improvements or utilisation at all from the GPUs? I noticed the PhotoScan manual mentions that this operation should be GPU accelerated but it seems to be CPU only?

Is there a caveat or condition I'm missing here to get PhotoScan to use GPUs for tiled model generation?

Cheers,

J

jbak9141

  • Newbie
  • *
  • Posts: 18
    • View Profile
Re: GPU acceleration for tiled model generation
« Reply #1 on: March 28, 2019, 07:50:59 AM »
Hey Alexey,

Just bumping this one, does this make any sense? We're expecting `chunk.buildTiledModel` to utilise GPU resources where it does not seem to at all.

Cheers,

J

Alexey Pasumansky

  • Agisoft Technical Support
  • Hero Member
  • *****
  • Posts: 15228
    • View Profile
Re: GPU acceleration for tiled model generation
« Reply #2 on: March 28, 2019, 01:06:52 PM »
Hello jbak9141,

Tiled Model Generation procedure would utilize GPU for some sub-steps only when the reconstruction from the Depth Maps is selected as a source.
Best regards,
Alexey Pasumansky,
Agisoft LLC

jbak9141

  • Newbie
  • *
  • Posts: 18
    • View Profile
Re: GPU acceleration for tiled model generation
« Reply #3 on: March 29, 2019, 09:11:16 AM »
Hello jbak9141,

Tiled Model Generation procedure would utilize GPU for some sub-steps only when the reconstruction from the Depth Maps is selected as a source.

Great, thanks Alexey, will test it out now