v1.6.0.3: Multiple File Hardware Encoding: Crashing

[mue.mat]

Hello

When I want to convert several video files at the same time (multiple file hardware encoding, CUDA), ConvertXtoVideo is CRASHING after a few minutes.
It doesn't matter whether I put 8 or 4 video files to convert at the same time. ConvertXtoVideo is crashing.

Is there some help?

Regards

mue.mat

[JJ]

If you have hardware encoding enabled, check how that is.
I had 2 NVENC and 2 CUDA instances and that crashed (one thread froze).

Changing it to use only CUDA fixed it.

[cedric]

Hello,

The maximum of hardware encoder sessions usable depend of multiple parameters:
- graphic card capacities (available memory,nb. of CUDA cores)
- output profile (resolution, nb of ref. frames...)
- if hardware decoders option is enabled, that will decrease the maximum encoder sessions usable in same time too

A single rule can be applied for major graphic cards:
4 simultaneous hardware session (including decoders AND encoders).
That mean:
2 hardware decoder instances AND 2 hardware encoder instances (where max. simultaneous conversions should be set to 2)
OR
0 hardware decoder instances AND 4 hardware encoder instances (where max. simultaneous conversions should be set to 4)
These values depends on output profile, but can be applied for 1080p output in major cases.

I need to create a module (in my task list) able to check the computer/graphic card capabilities to find the best conversion settings to use.

@JJ

I had 2 NVENC and 2 CUDA instances and that crashed (one thread froze).
Changing it to use only CUDA fixed it.

I will check why NVENC fail when CUDA is able to convert without problem...

Regards,

[mue.mat]

Hello

I tried out nearly "everything". Multiple encoding to BluRay structure (720p or 1080p) with...

a) software encoding: fails (error message, doesn't even start converting)
b) hardware encoding, NVENC and 2 CUDA: crashing after few minutes
c) hardware encoding, only NVENC: fails (error message, doesn't even start converting, only few video files start converting until crashing a few minutes later)
d) hardware encoding, only CUDA: crashing after few minutes

In older versions it was possible for me to convert up to 10 (!) video files (with same length, 45m, and resolution, 720p, as examples above; CUDA hardware encoding). My system did the job within 60 min and a overall length of video of more than 7 hours. Now software is crashing even with 4 video files. That means, ConvertXtoVideo has now a problem to convert multiple video files at the same time.

Regards

mue.mat

[cedric]

Please post your log files.

Regards,

[mue.mat]

Hello
v1.6.0.4:
Software still crashing when using more than 3 files for multiple encoding at the same time (mkv to BluRay-structure).
Should be nice to be fixed in next beta version.

Regards

mue.mat

[Claire]

Sorry to ask but with latest version do you still have this problem 1.6.0.9?

[mue.mat]

Yes, usually crashing happens at the end of conversion, during the last 5-10 min.

[Claire]

Crashes at the end of the covnersion can be related to the creation of the menu.

You can try a conversion with a menu template "no menu" for example and see what happens.

[mue.mat]

Crashing is BEFORE creating menu, still during normal conversion.
The more video files converting at the same time (720p, > 40 min), the earlier crash happens. The «limit» is 4 video files and more.
Software encoding (CPU) doesn't create problems, but, of course, is much slower.