NotSupported

Types

• 64-bit data-types (long and double via cl_khr_fp64) are unsupported, since the VideoCore IV GPU only provides 32-bit instructions.
• The cl_khr_fp16 half floating-point type is also not supported.
• Images and any associated feature (e.g. samplers) are not supported.

Applications

Any application which requires a work-group with more than 12 work-items. Among others, BulletCL, since some parts require 64 work-items to be executed in parallel (per work-group). Indifferent of the configuration (12 work-groups * 1 work-item or 1 work-group * 12 work-items), the VideoCore IV cannot execute 64 work-items in parallel!