Re: [darktable-user] Does OpenCL require the AMDGPU-PRO driver? Yes, but does not require installation, just some libs

Sat, 25 Mar 2017 16:24:06 -0700

Hi,

Using the info in this link https://community.amd.com/message/2788134, It appears that I've been able to get OpenCL working on my system, Fedora 25 (4.9.14-200.fc25.x86_64 fully updated) using an RX480 gpu without installing the amdgpu-pro driver. You will, however, need the amdgpu-pro 16.60 driver rpms. Just unpackage the few libs needed (I used the CentOS//RHEL 7.3 package). Haven't done any benchmarking yet.

Cheers

[~]$ darktable-cltest
[opencl_init] opencl related configuration options:
[opencl_init]
[opencl_init] opencl: 1
[opencl_init] opencl_library: ''
[opencl_init] opencl_memory_requirement: 768
[opencl_init] opencl_memory_headroom: 300
[opencl_init] opencl_device_priority: '*/!0,*/*/*'
[opencl_init] opencl_size_roundup: 16
[opencl_init] opencl_async_pixelpipe: 0
[opencl_init] opencl_synch_cache: 0
[opencl_init] opencl_number_event_handles: 25
[opencl_init] opencl_micro_nap: 1000
[opencl_init] opencl_use_pinned_memory: 0
[opencl_init] opencl_use_cpu_devices: 0
[opencl_init] opencl_avoid_atomics: 0
[opencl_init] opencl_enable_markesteijn: 1
[opencl_init]
[opencl_init] could not find opencl runtime library 'libOpenCL'
[opencl_init] could not find opencl runtime library 'libOpenCL.so'
[opencl_init] found opencl runtime library 'libOpenCL.so.1'
[opencl_init] opencl library 'libOpenCL.so.1' found on your system and loaded
[opencl_init] found 1 platform
[opencl_init] found 2 devices
[opencl_init] device 0 `Ellesmere' supports image sizes of 16384 x 16384
[opencl_init] device 0 `Ellesmere' allows GPU memory allocations of up to 2669MB
[opencl_init] device 0: Ellesmere
     GLOBAL_MEM_SIZE:          3749MB
     MAX_WORK_GROUP_SIZE:      256
     MAX_WORK_ITEM_DIMENSIONS: 3
     MAX_WORK_ITEM_SIZES:      [ 256 256 256 ]
     DRIVER_VERSION:           2264.10
     DEVICE_VERSION:           OpenCL 1.2 AMD-APP (2264.10)


On 2017-01-01 16:10, Riley Brandt wrote:

Thanks for sharing your experience. It's very interesting. Please let me know if you ever get AMDGUP-Pro and OpenCL running in Fedora.

I am going to wait a while before switching to AMD. I want to see how the open source drivers turn out.


On 30/12/16 07:31 PM, Mark Heieis wrote:

Hi

For what its worth... I just acquired a new system that includes a RX480, running fedora 25. It terms of getting the GPU working, it functions with mesa, but lacks the "image support" required for full darktable support of CL.

With respect to amdgpu-pro, I've been working on installing it as recently as today, from what I can tell, we need to wait for the driver to be updated to support xserver-api(video-drv-23) (Xorg 1.19 (just released mid Nov 2016)). Installing it currently fails on xserver-api(video-drv-19) but seems to leave the driver partially installed without detriment (status from Xorg.0.log).

Having updated to a new system with an i7-6700k and faster hardware overall, I'm having no real issue working without OpenCL for the moment, hoping that patience will pay off shortly with the required update. What functionality will be in place at that time will be the interesting bit.

With that in mind, I'm still experimenting.

Regards.




On 2016-12-29 09:57, Riley Brandt wrote:
Hi,

I am interested in buying an AMD RX480 video card for the OpenCL performance in darktable (and open source drivers). However, I first need to know if OpenCL is only in the in the proprietary AMDGPU-PRO drivers?

I am running Fedora, and from what I can tell, the AMDGPU-PRO driver isn't available in Fedora. Only the open source AMDGPU driver.

Is anyone running darktable on Fedora with an AMD RX470/480 and OpenCL enabled?

Thanks,

Riley

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