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Hi all,
I am running into a problem that I guess is related to memory usage and number of processors. I've spent hours searching the forum but couldn't find any answers.
Any help would be greately appreciated!!
Description:
I am rendering a scene in both, a dual opteron (2 processors) with 2GB RAM & winXP, and a dual-core dual processor opteron (4 processors) with 2GB RAM & windows 200 Advanced server.
The render on the dual uses 100% of procesor, while the render (same scene) of the quad uses about .05% of the processor. The issue seems to be related to the light cache (Imap is first GI and LCache is the second GI), because whenever I turn off LCache the problem on the quad goes away.
Using performance monitor, I found out that as soon as vRay starts calculating the LCache, the CPU goes down to .05% on the quad proc., and the disk usage goes up to 100%, and hence I assume the bottleneck is being memory-related, and computer is swapping. Funny enough, I still have about 1GB of physical memory free.
I've tried playing with the dynamic memory limit, paramters for Lcache, and I even set the number of procesors to 2 (renderers.current.system_numThreads=2 in max) to simulate the dual processor, but could find a solution to the problem. Disk usage still goes up to 100% and procesor down to about 4% as soon as vRay starts calculating the Light Cache.
Has anyone run into this problem before? Any ideas of how to solve this issue?
Thanks!
I am running into a problem that I guess is related to memory usage and number of processors. I've spent hours searching the forum but couldn't find any answers.
Any help would be greately appreciated!!
Description:
I am rendering a scene in both, a dual opteron (2 processors) with 2GB RAM & winXP, and a dual-core dual processor opteron (4 processors) with 2GB RAM & windows 200 Advanced server.
The render on the dual uses 100% of procesor, while the render (same scene) of the quad uses about .05% of the processor. The issue seems to be related to the light cache (Imap is first GI and LCache is the second GI), because whenever I turn off LCache the problem on the quad goes away.
Using performance monitor, I found out that as soon as vRay starts calculating the LCache, the CPU goes down to .05% on the quad proc., and the disk usage goes up to 100%, and hence I assume the bottleneck is being memory-related, and computer is swapping. Funny enough, I still have about 1GB of physical memory free.
I've tried playing with the dynamic memory limit, paramters for Lcache, and I even set the number of procesors to 2 (renderers.current.system_numThreads=2 in max) to simulate the dual processor, but could find a solution to the problem. Disk usage still goes up to 100% and procesor down to about 4% as soon as vRay starts calculating the Light Cache.
Has anyone run into this problem before? Any ideas of how to solve this issue?
Thanks!
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