AMD Ryzen 4000 Mobile Series "Renoir" Graphics No Longer Experimental With Linux 5.5

[bridgman]

One option worth trying for OpenCL would be to install the packaged version from the AMDGPU-PRO download. That version runs over PAL rather than ROCm but should work OK with an otherwise upstream-based driver stack. Not sure about GL/CL interop with Mesa though...

[Nille_kungen]

One option worth trying for OpenCL would be to install the packaged version from the AMDGPU-PRO download. That version runs over PAL rather than ROCm but should work OK with an otherwise upstream-based driver stack. Not sure about GL/CL interop with Mesa though...

And what's PAL in this case?
Platform Abstraction Library?

https://github.com/GPUOpen-Drivers/pal

It's hard to keep track of AMD and all changes.
Is ROCm being deprecated?
Is OpenCL also deprecated and one should look at CUDA over HIP?

https://www.phoronix.com/forums/forum/linux-graphics-x-org-drivers/open-source-amd-linux/1145604-amd-s-gpu-performance-api-library-3-5-drops-rocm-hsa-support?p=1145943#post1145943

https://www.olcf.ornl.gov/wp-content..._specsheet.pdf
OpenCL is a dead end and the future seems to be CUDA over HIP so developers should start using HIP instead.
When a Swedish techsite had a 20yr anniversary Joe Macri was a speaker and i later read in the forum that one had asked him after the speech and the recording "doesn't AMD still invests in OpenCL?".
The answer was no, better to use CUDA over HIP.
I hope nothing got lost in translation.

Here's the speech if anyone is interested.
https://www.youtube.com/watch?v=D8m6CSlNmQA

[lamikr]

One option worth trying for OpenCL would be to install the packaged version from the AMDGPU-PRO download. That version runs over PAL rather than ROCm but should work OK with an otherwise upstream-based driver stack. Not sure about GL/CL interop with Mesa though...

Thanks, need to try the amdgpu later (newer installed and not sure where to find the latest sources/installation instructions for it). HCC and HIP I managed to get raven ridge working with latest upstream kernel git drivers which talk with /dev/kfd after small patching and would prefer the upstream driver also for opencl if possible.

I have now finally managed to get also the ROCm-opencl-runtime building but clinfo is failing almost on first steps when calling the clGetPlatformIDs from the /lib64/libOpenCL.so.1 that is provided by my distribution from the opensource ocl-icd package ocl-icd-2.2.12-2.mga7.src.rpm. I still lack the understanding whether that should be ok and I just need to reconfigure something or whether I need to rebuild that by myself from khronos git version available at https://github.com/KhronosGroup/OpenCL-ICD-Loader.

I also just bought parts for newer ryzen 3700x / navi 5700 machine and plan to install that today. Not sure whether any of the hip/hcc/opencl is supporting that out of the box but at least the llvm should build much faster :-)

[bridgman]

And what's PAL in this case? Platform Abstraction Library?
https://github.com/GPUOpen-Drivers/pal

Correct, although it might be "... Layer" rather than "... Library". On Windows we use PAL for DX12 Vulkan and OpenCL, and may use it for other APIs in future. Any drivers for other OSes that share Windows code also use PAL - on Linux that is AMD Vulkan and packaged OpenCL.

Is ROCm being deprecated?

No, quite the opposite... the KFD/ROCr stack is becoming the standard compute interface for Linux on both consumer and datacenter products.

Is OpenCL also deprecated and one should look at CUDA over HIP?

OpenCL is not deprecated (or being deprecated), however if you are looking at porting an application from CUDA then using HIP rather than OpenCL makes the porting effort much easier.

[lamikr]

OpenCL is not deprecated (or being deprecated), however if you are looking at porting an application from CUDA then using HIP rather than OpenCL makes the porting effort much easier.

How about hcc, is that still developed or whether all efforts are now on HIP version which would work directly with upstream llvm instead of hcc?

[artivision]

Nonsense! The GPU in Renoir is massively overhauled and will deliver leading performance in APU like chips. What you are pooping on is in fact fine engineering.

Leading APU performance cannot play all games.