No OpenCL for newest iMac with AMD Radeon R9 M395
Testing darktable 2.0 on a friend's iMac 27-inch (late 2015) with a AMD Radeon R9 M395 graphic card, the OpenCL check box in Core Options was still greyed out and un-clickable. Was I mistaken to expect this graphics card to be supported? Or is it an oversight that can be corrected?
#4 Updated by Hiram Baasch about 4 years ago
I can test this now on my own iMac 27 inch, late 2015, with 3,3 GHz Intel Core i5, 24 GB 1867 MHz DDR3, AMD Radeon R9 M395 2048 MB. Most of the time the OpenCL checkbox is available, but sometimes, when as far as I can tell no parameters have changed, it is not. I must say that even when OpenCL is (supposedly) activated, darktable is considerably slower on this new beast of a machine (fast processor, lots or RAM) than on my previous, much less muscular iMac (2011). But I will add a different issue about that.