Hi Ronie, since we switch here from OS X 10.10.2 to 10.10.3, your OpenCL framework doesn't not work anymore ... We crash Pharo everytime we try to use GPU. This is an except of the crash log: Process: Pharo [21039] Path: /Applications/Pharo.app/Contents/MacOS/Pharo Identifier: org.pharo.Pharo Version: Pharo 0.2.7-2015.04.20 (21.0) Code Type: X86 (Native) Parent Process: ??? [1] Responsible: Pharo [21039] User ID: 502 Date/Time: 2015-05-20 16:50:33.740 +0200 OS Version: Mac OS X 10.10.3 (14D136) Report Version: 11 Anonymous UUID: 53101D99-4009-6151-7D46-D4F943A588CF Sleep/Wake UUID: D65CFFA9-9DD4-490B-99A5-D5A3F37C8649 Time Awake Since Boot: 240000 seconds Time Since Wake: 19000 seconds Crashed Thread: 0 Dispatch queue: opencl_runtime Exception Type: EXC_BAD_ACCESS (SIGABRT) Exception Codes: KERN_INVALID_ADDRESS at 0x0000000000000020 What can we do ? Apparently this is difficult to downgrade back to 10.10.2 Regards -- Serge Stinckwich UCBN & UMI UMMISCO 209 (IRD/UPMC) Every DSL ends up being Smalltalk http://www.doesnotunderstand.org/