Buffer Size Recommendations from AMD for AMD GPUs [CLOSED]

Discussion created by dragonxi4amd on May 24, 2011
Latest reply on May 26, 2011 by jeff_golds
clCreateBuffer & clCreateSubBuffer


Referring to OpenCL specs for clCreateBuffer


"OpenCL implementations are allowed to cache the buffer


contents pointed to by



host_ptr in device memory. This

cached copy can be used when kernels are executed on a



Q1. What is the cache size used by AMD GPU

A) ATI RV770 ?

B) new 6990 ?


Q2. What is the minimum and maximum for region of clCreateSubBuffer function ?

Q3. Are there any limits / recommendations to number of regions in a buffer - due to cache feature for example ?

Q4. Can one release a created sub-buffer ?