Provides implementations for handling CUDA memory buffers. More...
| Namespaces | |
| detail | |
| Holds implementation details for handling CUDA memory buffers. Not intended for direct use by library users. | |
| Classes | |
| class | cuda_exception | 
| Typedefs | |
| typedef viennacl::tools::shared_ptr < char > | handle_type | 
| Functions | |
| handle_type | memory_create (vcl_size_t size_in_bytes, const void *host_ptr=NULL) | 
| Creates an array of the specified size on the CUDA device. If the second argument is provided, the buffer is initialized with data from that pointer.  More... | |
| void | memory_copy (handle_type const &src_buffer, handle_type &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' on the CUDA device to memory starting at address 'dst_buffer + dst_offset' on the same CUDA device.  More... | |
| void | memory_write (handle_type &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 CUDA buffer identified by 'dst_buffer'.  More... | |
| void | memory_read (handle_type const &src_buffer, vcl_size_t src_offset, vcl_size_t bytes_to_copy, void *ptr, bool async=false) | 
| Reads data from a CUDA buffer back to main RAM.  More... | |
Provides implementations for handling CUDA memory buffers.
| 
 | inline | 
Copies 'bytes_to_copy' bytes from address 'src_buffer + src_offset' on the CUDA device to memory starting at address 'dst_buffer + dst_offset' on the same CUDA device.
| src_buffer | A smart pointer to the begin of an allocated CUDA buffer | 
| dst_buffer | A smart pointer to the end of an allocated CUDA buffer | 
| src_offset | Offset of the first byte to be written from the address given by 'src_buffer' (in bytes) | 
| dst_offset | Offset of the first byte to be written to the address given by 'dst_buffer' (in bytes) | 
| bytes_to_copy | Number of bytes to be copied | 
| 
 | inline | 
Creates an array of the specified size on the CUDA device. If the second argument is provided, the buffer is initialized with data from that pointer.
| size_in_bytes | Number of bytes to allocate | 
| host_ptr | Pointer to data which will be copied to the new array. Must point to at least 'size_in_bytes' bytes of data. | 
| 
 | inline | 
Reads data from a CUDA buffer back to main RAM.
| src_buffer | A smart pointer to the beginning of an allocated CUDA source buffer | 
| src_offset | Offset of the first byte to be read from the beginning of src_buffer (in bytes_ | 
| bytes_to_copy | Number of bytes to be read | 
| ptr | Location in main RAM where to read data should be written to | 
| async | Whether the operation should be asynchronous | 
| 
 | inline | 
Writes data from main RAM identified by 'ptr' to the CUDA buffer identified by 'dst_buffer'.
| dst_buffer | A smart pointer to the beginning of an allocated CUDA buffer | 
| dst_offset | Offset of the first written byte from the beginning of 'dst_buffer' (in bytes) | 
| bytes_to_copy | Number of bytes to be copied | 
| ptr | Pointer to the first byte to be written | 
| async | Whether the operation should be asynchronous |