Question about pinned memory implementation in OpenCL

Discussion created by Raistmer on Mar 13, 2010
Latest reply on Mar 18, 2010 by Raistmer
For current SDK 2.01

1) does it exist at all ? (that is, does current SDK 2.01 obey CL_MEM_ALLOC_HOST_PTR flag or just ignores it? )

2) if it exist (that is, if some memory really allocated from non-paged pool), is it mapped on uncached region or "cacheability" of this region changed when map/unmap procedures used?
That is, can CPU effectively work with this memory region (cacheable memory when mapped into host adress space) or it will suffer when do read/write on this memory region?