CPU dropping out during Photon Emission Calc

[Cyberstyle]

Anyone have any knowledge about the CPU dropping out to '0' usage

during the Photon Emission calculations?.

 

It will start the process and run at 100% CPU usage but at around the 60% complete

mark the CPU drops to '0' and the MEM Usage remains at the same value with no change.

 

I can let it run for forever with no crash and no change. Last night I let it run when I left the office and when I got in this morning it was still at the same point with no change.

 

I'm using a Quad Core Xeon with 16GB RAM.

[odouble]

Anyone have any knowledge about the CPU dropping out to '0' usage

during the Photon Emission calculations?.

 

It will start the process and run at 100% CPU usage but at around the 60% complete

mark the CPU drops to '0' and the MEM Usage remains at the same value with no change.

 

I can let it run for forever with no crash and no change. Last night I let it run when I left the office and when I got in this morning it was still at the same point with no change.

 

I'm using a Quad Core Xeon with 16GB RAM.

 

Go to "Rendering->Render Message Window..." and then generate photons again. My guess is that it stops generating photons after a certain amount of photons has been reached. You should see any error in the render message window.

[Cyberstyle]

I normaly have both the MR message window and the performance monitor open all the time when rendering.

The photon target had not been reached before the cpu drops out. I tried the same file 3 times, each with a different % result.

In the MR window it just stops and hangs at the same point- "JOB 0.5 progr: 63.6% photon emission on ghost.5"

Even the log files make no sense of what's going on and the IT manager can't figure it out either.

 

I got the job done in the end, but would still like to figure this out as it's not the first time I've seen this.