Using QtOpenCL with multiple devices
I have 2 videocards (2 GPUs each) (Radeon HD 6990). I’m trying to use both of them in my calculations.
Querying AMD APP platform returns correct number of avail. OpenCL-devices, so I’m creating context with QList< QCLDevice > containing 4 GPUs.
Then I’m creating QCLProgram using QCLContext::createProgramFromSourceFile().
- clProgram = clContext.createProgramFromSourceFile("test.cl");
- /* setting compilier params... */
Problem is, clProgram only sees 1 gpu (clProgram.devices() returns 1). Documentation says:
- /*If devices is not empty, the program will only be built for devices in the specified list.
- Otherwise the program will be built for all devices on the program's context.*/
However, using QList<QCLDevice>() as first param leads to same result.
Any advices? Thanks.