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Graphics: Khronos, AMDKFD and Ryzen Issues

Submitted by Roy Schestowitz on Thursday 3rd of January 2019 01:50:28 PM Filed under
Graphics/Benchmarks
  • Vulkan/OpenCL Interop Extension In Development, OpenCL-Next Continues

    Khronos President Neil Trevett just commented on the current state of Vulkan/OpenCL compute and reaffirmed that OpenCL will continue to evolve as well.

  • It Turns Out AMDGPU KFD Compute Support Can Work On 64-bit ARM

    Up to now the AMDKFD kernel driver needed for running the ROCm user-space has only worked on x86_64 CPUs, but with some simple changes, it turns out this Radeon compute kernel driver can work on 64-bit ARM as well.

    The motivation for getting the AMDKFD driver working on 64-bit ARM isn't entirely clear so it could be for a reason as simple as an ARM employee discovering it could work fairly trivially or it could be something more interesting. Posted by one the AMDKFD patch wrangler at AMD on Wednesday was this patch allowing the "Kernel Fusion Driver" to build on ARM64 (AArch64). The changes were just a few lines to include allowing the kernel Kconfig option to display for ARM64 and then also dealing with a few x86_64-specific lines of code.

  • Fixing stability issues with 1st generation Ryzen chips on Debian

    I was an early adopter when Ryzen - AMD's latest CPU line - came out. The prices were very good, the chips had a lot of cores and they ran pretty fast. At the time I thought the Ryzen 1600 CPU with its 6 core and 12 threads all running at 3.4 GHz with a TDP of 65W (with support for ECC RAM) made the perfect homeserver chip.

    Fast forward two years: I've finally got around the stability issues I was having that hung my server at random intervals. Sometimes, everything was fine for months, but I also experienced random system freezes twice in a week. Since I'm using full disk encryption on all the drives in my server, a whole system freeze meant I had to go back home and reboot the server manually.

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