Cubase 10, Windows 10 and multi-core (14+ cores)

omniphonix · December 12, 2018, 4:31pm

mikejm:

Fabio, can you please clarify exactly what this change should or shouldn’t allow? Exactly how many computational threads are allowed now? Can a large scale CPU be expected to be used fully? eg. AMD Ryzen Threadripper 2990WX with 32 core and 64 thread? Or is this just a “fix” to throttle Cubase so it only uses a certain percent of the available threads and no dropouts occur?

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So I can only hope you have found a total solution between the two of your companies. Otherwise, I would like to know what you suggest people do long term in order to fully use these big processors. If this is expected to work with Cubase fully, I will order one of these processors and can post test results in a few weeks. But I need to be clear on what to actually expect. I don’t want to buy a $2000+ processor for $800 worth of performance.

Be warned about the architecture of AMD’s latest multi-die CPUs. Scan Pro Audio has already shown how this configuration is not ideal for real-time audio applications. The inter-core data transfer in the interposer presents delays compared to on-die and essentially results in NUMA like a multi-socket workstation. The same reason multi-socket is not always ideal for pro audio. See the articles:

http://www.scanproaudio.info/2017/08/14/first-look-at-the-amd-threadripper-1920x-1950x/
http://www.scanproaudio.info/2018/08/24/threadrippers-2990wx-2950x-on-the-bench-just-a-little-bit-of-history-repeating/