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Maniphest T63636

The performance is ridiculously slow with ROCm 2.3, though kernels compile the same as the pro drivers
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Description

System Information
Operating system: Linux-4.15.0-47-generic-x86_64-with-debian-buster-sid 64 Bits
Graphics card: Radeon RX Vega ATI Technologies Inc. 4.5.13542 Core Profile Context 18.50.1.418

Blender Version
Broken: (example: 2.80, 860a9f979d60, master, 2018-04-14, as found on the splash screen)
Short description of error
The performance is ridiculously slow with ROCm 2.3 kernels, though they compile even at the same speed as the pro drivers. Not sure if report this to ROCm's project page too, it's compiling after all.

Exact steps for others to reproduce the error

AMDGPUpro 18.5.flv7 MBDownload

ROCm 2.3.flv19 MBDownload

Related Objects

Event Timeline

iszotic (iszotic) created this task.Apr 15 2019, 11:05 PM
Brecht Van Lommel (brecht) closed this task as a duplicate of T62688: ROCm 2.2 OpenCL kernels don't compile.Apr 15 2019, 11:20 PM
Brecht Van Lommel (brecht) added a subscriber: Brecht Van Lommel (brecht).

The situation is still the same, we only support amdgpu-pro. If we make an effort to support this we can look into optimizations, but it's not a good use of or time when the ROCm compiler is not mature yet for this kind of use case.