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CUB
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DeviceRadixSort provides device-wide, parallel operations for computing a radix sort across a sequence of data items residing within global memory.
unsigned char, int, double, etc. Although the direct radix sorting method can only be applied to unsigned integral types, BlockRadixSort is able to sort signed and floating-point types via simple bit-wise transformations that ensure lexicographic key ordering.CUB_CDP macro in your compiler's macro definitions.uint32 keys. Performance plots for other scenarios can be found in the detailed method descriptions below.
Definition at line 81 of file device_radix_sort.cuh.
Static Public Methods | |
| template<typename Key , typename Value > | |
| static CUB_RUNTIME_FUNCTION cudaError_t | SortPairs (void *d_temp_storage, size_t &temp_storage_bytes, DoubleBuffer< Key > &d_keys, DoubleBuffer< Value > &d_values, int num_items, int begin_bit=0, int end_bit=sizeof(Key)*8, cudaStream_t stream=0, bool debug_synchronous=false) |
| Sorts key-value pairs into ascending order. More... | |
| template<typename Key , typename Value > | |
| static CUB_RUNTIME_FUNCTION cudaError_t | SortPairsDescending (void *d_temp_storage, size_t &temp_storage_bytes, DoubleBuffer< Key > &d_keys, DoubleBuffer< Value > &d_values, int num_items, int begin_bit=0, int end_bit=sizeof(Key)*8, cudaStream_t stream=0, bool debug_synchronous=false) |
| Sorts key-value pairs into descending order. More... | |
| template<typename Key > | |
| static CUB_RUNTIME_FUNCTION cudaError_t | SortKeys (void *d_temp_storage, size_t &temp_storage_bytes, DoubleBuffer< Key > &d_keys, int num_items, int begin_bit=0, int end_bit=sizeof(Key)*8, cudaStream_t stream=0, bool debug_synchronous=false) |
| Sorts keys into ascending order. More... | |
| template<typename Key > | |
| static CUB_RUNTIME_FUNCTION cudaError_t | SortKeysDescending (void *d_temp_storage, size_t &temp_storage_bytes, DoubleBuffer< Key > &d_keys, int num_items, int begin_bit=0, int end_bit=sizeof(Key)*8, cudaStream_t stream=0, bool debug_synchronous=false) |
| Sorts keys into ascending order. More... | |
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inlinestatic |
Sorts key-value pairs into ascending order.
d_temp_storage is NULL, no work is done and the required allocation size is returned in temp_storage_bytes.CUB_CDP macro in your compiler's macro definitions.uint32,uint32 and uint64,uint64 pairs, respectively.
int keys with associated vector of int values. | Key | [inferred] Key type |
| Value | [inferred] Value type |
| [in] | d_temp_storage | Device allocation of temporary storage. When NULL, the required allocation size is written to temp_storage_bytes and no work is done. |
| [in,out] | temp_storage_bytes | Reference to size in bytes of d_temp_storage allocation |
| [in,out] | d_keys | Reference to the double-buffer of keys whose current buffer contains the unsorted input keys and, upon return, is updated to point to the sorted output keys |
| [in,out] | d_values | Double-buffer of values whose current buffer contains the unsorted input values and, upon return, is updated to point to the sorted output values |
| [in] | num_items | Number of items to reduce |
| [in] | begin_bit | [optional] The first (least-significant) bit index needed for key comparison |
| [in] | end_bit | [optional] The past-the-end (most-significant) bit index needed for key comparison |
| [in] | stream | [optional] CUDA stream to launch kernels within. Default is stream0. |
| [in] | debug_synchronous | [optional] Whether or not to synchronize the stream after every kernel launch to check for errors. Also causes launch configurations to be printed to the console. Default is false. |
Definition at line 144 of file device_radix_sort.cuh.
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inlinestatic |
Sorts key-value pairs into descending order.
d_temp_storage is NULL, no work is done and the required allocation size is returned in temp_storage_bytes.CUB_CDP macro in your compiler's macro definitions.int keys with associated vector of int values. | Key | [inferred] Key type |
| Value | [inferred] Value type |
| [in] | d_temp_storage | Device allocation of temporary storage. When NULL, the required allocation size is written to temp_storage_bytes and no work is done. |
| [in,out] | temp_storage_bytes | Reference to size in bytes of d_temp_storage allocation |
| [in,out] | d_keys | Reference to the double-buffer of keys whose current buffer contains the unsorted input keys and, upon return, is updated to point to the sorted output keys |
| [in,out] | d_values | Double-buffer of values whose current buffer contains the unsorted input values and, upon return, is updated to point to the sorted output values |
| [in] | num_items | Number of items to reduce |
| [in] | begin_bit | [optional] The first (least-significant) bit index needed for key comparison |
| [in] | end_bit | [optional] The past-the-end (most-significant) bit index needed for key comparison |
| [in] | stream | [optional] CUDA stream to launch kernels within. Default is stream0. |
| [in] | debug_synchronous | [optional] Whether or not to synchronize the stream after every kernel launch to check for errors. Also causes launch configurations to be printed to the console. Default is false. |
Definition at line 227 of file device_radix_sort.cuh.
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inlinestatic |
Sorts keys into ascending order.
d_temp_storage is NULL, no work is done and the required allocation size is returned in temp_storage_bytes.CUB_CDP macro in your compiler's macro definitions.uint32 and uint64 keys, respectively.
int keys. | Key | [inferred] Key type |
| [in] | d_temp_storage | Device allocation of temporary storage. When NULL, the required allocation size is written to temp_storage_bytes and no work is done. |
| [in,out] | temp_storage_bytes | Reference to size in bytes of d_temp_storage allocation |
| [in,out] | d_keys | Reference to the double-buffer of keys whose current buffer contains the unsorted input keys and, upon return, is updated to point to the sorted output keys |
| [in] | num_items | Number of items to reduce |
| [in] | begin_bit | [optional] The first (least-significant) bit index needed for key comparison |
| [in] | end_bit | [optional] The past-the-end (most-significant) bit index needed for key comparison |
| [in] | stream | [optional] CUDA stream to launch kernels within. Default is stream0. |
| [in] | debug_synchronous | [optional] Whether or not to synchronize the stream after every kernel launch to check for errors. Also causes launch configurations to be printed to the console. Default is false. |
Definition at line 306 of file device_radix_sort.cuh.
|
inlinestatic |
Sorts keys into ascending order.
d_temp_storage is NULL, no work is done and the required allocation size is returned in temp_storage_bytes.CUB_CDP macro in your compiler's macro definitions.int keys. | Key | [inferred] Key type |
| [in] | d_temp_storage | Device allocation of temporary storage. When NULL, the required allocation size is written to temp_storage_bytes and no work is done. |
| [in,out] | temp_storage_bytes | Reference to size in bytes of d_temp_storage allocation |
| [in,out] | d_keys | Reference to the double-buffer of keys whose current buffer contains the unsorted input keys and, upon return, is updated to point to the sorted output keys |
| [in] | num_items | Number of items to reduce |
| [in] | begin_bit | [optional] The first (least-significant) bit index needed for key comparison |
| [in] | end_bit | [optional] The past-the-end (most-significant) bit index needed for key comparison |
| [in] | stream | [optional] CUDA stream to launch kernels within. Default is stream0. |
| [in] | debug_synchronous | [optional] Whether or not to synchronize the stream after every kernel launch to check for errors. Also causes launch configurations to be printed to the console. Default is false. |
Definition at line 383 of file device_radix_sort.cuh.
1.8.4