Render Test Final (re-run)

Render Test Final (re-run)

Description

Testing a scene to make sure there are no errors.
A re-run of session 3442 with new rendering clients.

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Message 15410 - Posted: 27 Jul 2018, 10:45:10 UTC

These say they are for GPU but have so far spent over an hour just running on a CPU thread.

Will they use the GPU ?
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Message 15411 - Posted: 27 Jul 2018, 10:57:40 UTC - in response to Message 15410.  

Hm, looks there may be an off-by-one error in our GPU code. We're enabling GPU0 but the script inside Blender indexes the GPUs from 1 for some reason. I will have to look into this to figure out what is going on and what has changed.

Switching back to CPU rendering for the remainder of this session and until a new GPU client can be released.
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Message 15412 - Posted: 27 Jul 2018, 11:00:28 UTC - in response to Message 15411.  

Okay, thanks.

How long do you think they will take on a single thread ?
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Message 15419 - Posted: 29 Jul 2018, 16:42:45 UTC
Last modified: 29 Jul 2018, 16:45:35 UTC

Using this session to slowly and carefully run a few more GPU tests:
1) The code for GPU indexing has been updated to match the most recent changes in how Cycles uses GPUs
2) Preliminary test of OpenCL support for AMD GPUs
3) Test of configuring client binaries across multiple platforms inside BOINC using just one set of files
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Message 15420 - Posted: 29 Jul 2018, 16:59:39 UTC
Last modified: 29 Jul 2018, 17:12:23 UTC

The 5.14 version still used the CPU.

Edit: I did go to check if the GPU had fired up but it had just completed !
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Message 15421 - Posted: 29 Jul 2018, 19:59:32 UTC

New ones are using the GPU :)
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Message 15424 - Posted: 29 Jul 2018, 20:04:05 UTC
Last modified: 29 Jul 2018, 20:04:58 UTC

Great to hear!

There's still some CPU used during the start-up and up to 1 full thread for managing the GPU.
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Message 15425 - Posted: 29 Jul 2018, 20:29:19 UTC

Thanks, it's been a while since I had GPU work I couldn't remember how much got used !
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Message 15438 - Posted: 31 Jul 2018, 18:01:52 UTC

The OpenCL test WU that was sent out for this session didn't seem to succeed at all. No reply was received from any of the machines that received it.
It will take a little while longer for the WUs to time out and hopefully, by then, some logs will show what the problem is.

Unfortunately I don't personally have modern enough OpenCL hardware available for testing yet.
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Message 15439 - Posted: 31 Jul 2018, 21:42:46 UTC - in response to Message 15438.  

I didn't get any of them. It also seems strange that no-one has returned anything (good or bad), as though they aren't making it to the client.

Will keep trying...
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