Processor Affinity in OpenCL
Can we impose procssor affinity in OpenCl? For example thread# 1 executes on procesor# 5, thread# 2 executes on procesor# 6, thread# 3 executes on procesor# 7, and so on ? Thanks You can't specify affinity at that low level with OpenCL as far as I know. But, starting with OpenCL 1.2 have some control over affinity by partitioning into subdevices using clCreateSubDevices (possibly with one processor in each subdevice by using CL_DEVICE_PARTITION_BY_COUNTS, 1 ) and running separate kernel executions on each subdevice. This would very likely run poorly on anything other than a CPU-based OpenCL