1 #ifndef VIENNACL_BACKEND_OPENCL_HPP_ 
    2 #define VIENNACL_BACKEND_OPENCL_HPP_ 
   75   assert( &src_buffer.
context() == &dst_buffer.
context() && bool(
"Transfer between memory buffers in different contexts not supported yet!"));
 
   78   cl_int err = clEnqueueCopyBuffer(memory_context.get_queue().handle().get(),
 
  106 #if defined(VIENNACL_DEBUG_ALL) || defined(VIENNACL_DEBUG_DEVICE) 
  107   std::cout << 
"Writing data (" << bytes_to_copy << 
" bytes, offset " << dst_offset << 
") to OpenCL buffer " << dst_buffer.
get() << 
" with queue " << memory_context.
get_queue().
handle().
get() << 
" from " << ptr << std::endl;
 
  112                                     async ? CL_FALSE : CL_TRUE,             
 
  139                                     async ? CL_FALSE : CL_TRUE,             
 
cl_mem memory_create(viennacl::ocl::context const &ctx, vcl_size_t size_in_bytes, const void *host_ptr=NULL)
Creates an array of the specified size in the current OpenCL context. If the second argument is provi...
cl_mem create_memory_without_smart_handle(cl_mem_flags flags, unsigned int size, void *ptr=NULL) const 
Creates a memory buffer within the context. Does not wrap the OpenCL handle into the smart-pointer-li...
viennacl::ocl::command_queue & get_queue()
Manages an OpenCL context and provides the respective convenience functions for creating buffers...
void memory_write(viennacl::ocl::handle< cl_mem > &dst_buffer, vcl_size_t dst_offset, vcl_size_t bytes_to_copy, const void *ptr, bool async=false)
Writes data from main RAM identified by 'ptr' to the OpenCL buffer identified by 'dst_buffer'. 
void memory_read(viennacl::ocl::handle< cl_mem > const &src_buffer, vcl_size_t src_offset, vcl_size_t bytes_to_copy, void *ptr, bool async=false)
Reads data from an OpenCL buffer back to main RAM. 
viennacl::ocl::context const & context() const 
viennacl::ocl::handle< cl_command_queue > const & handle() const 
#define VIENNACL_ERR_CHECK(err)
const OCL_TYPE & get() const 
void memory_copy(viennacl::ocl::handle< cl_mem > const &src_buffer, viennacl::ocl::handle< cl_mem > &dst_buffer, vcl_size_t src_offset, vcl_size_t dst_offset, vcl_size_t bytes_to_copy)
Copies 'bytes_to_copy' bytes from address 'src_buffer + src_offset' in the OpenCL context to memory s...
Implementation of a smart-pointer-like class for handling OpenCL handles. 
Implementations of the OpenCL backend, where all contexts are stored in.