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RenderKit / ospray

An Open, Scalable, Portable, Ray Tracing Based Rendering Engine for High-Fidelity Visualization
http://ospray.org
Apache License 2.0
1.02k stars 186 forks source link

#osp:PT: out of memory for shadingContext allocation! #243

Closed geoxpeed closed 6 years ago

geoxpeed commented 6 years ago

I've changed pc, the same scene same parameter with old pc it's all ok, in the new pc after 50 frames ospray show three line:

osp:PT: out of memory for shadingContext allocation!

osp:PT: out of memory for shadingContext allocation!

osp:PT: out of memory for shadingContext allocation!

and after 55 frames another time show those three line error and then contiunue.

ospRay version 1.4.3.0 embree 2.17.0

New pc: mac pro with bootcamp and win 10 Processor intel xeon W-2140B 8-core 3.2 GHz with turbo boost 4.2 GHz 32gb Ram ECC 2666MHz 1TB SSD Disk Radeon Pro Vega 56 8Gb Ram HBM2

johguenther commented 6 years ago

Hmm, that's odd. Maybe your new PC now supports 8-wide SIMD (AVX), and thus the pathtracer materials need more memory. Still, the allocated memory scales with SIMD width and consequently we haven't seen this error a long time.

Anyway, could you try to increase the allocated memory by 2x in ospray/render/pathtracer/bsdfs/ShadingContext.ih (define SHADINGCONTEXT_SIZE) and see if the error is still there?

geoxpeed commented 6 years ago

Problem solved, thank you very much.