Here, Lenovo Thinkpad P53, GPU Nvidia Quadro T2000
Darktable 3.2.1-3 (installed, not snap) on Debian Sid with the recent NVidia drivers, 450.80.02 and kernel 5.8 (OpenCL works) or with kernel 5.9 (Open CL doesn't work) The difference with/without OpenCL is visible as soon as a raw image reaches some dozen Mb even for simple corrections. Le 20/11/2020 à 11:31, GianLuca Sarto a écrit : > to the benefit of all readers, I would like to confirm that OpenCL > works in this environment: > > * Ubuntu 20.04LTS > * Lenovo TS140 > * Palix Nvidia GeForce GTX1650, 4GB > * Darktable 3.2.1 (installed via apt, NOT snap!) > > > On 15/11/20 23:07, Šarūnas wrote: >> On 11/15/20 3:28 PM, GianLuca Sarto wrote: >>> thanks, Šarūnas, >>> >>> I have two Darktable systems, based on Lenovo TS140, one with AMD, the >>> other with Nvidia Quadro 400. >>> Neither of the two manage OpenCL.. >>> >>> 0.039390 [opencl_init] found opencl runtime library 'libOpenCL' >>> 0.039412 [opencl_init] opencl library 'libOpenCL' found on your system >>> and loaded >>> 0.042560 [opencl_init] found 1 platform >>> 0.042582 [opencl_init] found 1 device >>> 0.042727 [opencl_init] device 0 `Quadro 400' has sm_20 support. >>> 0.042778 [opencl_init] discarding device 0 `Quadro 400' due to >>> insufficient global memory (511MB). >> Too small video memory for useful OpenCL. >> >>> I would like to upgrade one of the two systems to a 4K display, so was >>> already decided to purchase a new video card. >>> >>> Is there a tested solution that works out of the box, or a list of DT >>> OpenCL compliant cards for Linux? >> I don't know whether such a list exists[1]. The more memory and more >> parallel processing units (“GPU cores”) a video card has, the more >> useful it will be for OpenCL processing. The useful minimum these days >> might be 2GB, but I would look for 4GB and more. >> >> “Out of the box” would probably only happen if you buy a computer from a >> company that sells them configured with Linux. Whether you install AMD >> or Nvidia GPU, there will be additional steps. >> >> In case of AMD, Linux kernel already supports AMD cards with the open >> source ‘amdgpu’ module, so that part will be “out of the box”. OpenCL >> support will have to come from either 1) open source ROCm or 2) >> proprietary AMDGPU-PRO. >> >> In case of Nvidia, Linux kernel's ‘nouveau’ module will need to be >> replaced with the proprietary ‘nv’ one from Nvidia, plus OpenCL part >> from the same Nvidia. Ubuntu has them in standard repositories. One can >> also use Nvidia repositories for perhaps slightly newer software. >> >> Intel appears to have a completely open source system, but usable GPUs >> are still to come. >> > > > ____________________________________________________________________________ > darktable user mailing list to unsubscribe send a mail to > darktable-user+unsubscr...@lists.darktable.org -- herve.sai...@laposte.net ____________________________________________________________________________ darktable user mailing list to unsubscribe send a mail to darktable-user+unsubscr...@lists.darktable.org
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