coalesced_group Class Reference#
cooperative_groups::coalesced_group Class Reference
The coalesced_group cooperative group type. More...
#include <amd_hip_cooperative_groups.h>
Inheritance diagram for cooperative_groups::coalesced_group:
Collaboration diagram for cooperative_groups::coalesced_group:
Public Member Functions | |
| unsigned int | size () const |
| unsigned int | thread_rank () const |
| Rank of the calling thread within [0, size() ). | |
| void | sync () const |
| Synchronizes the threads in the group. | |
| unsigned int | meta_group_rank () const |
| unsigned int | meta_group_size () const |
| Returns the number of groups created when the parent group was partitioned. | |
| template<class T > | |
| T | shfl (T var, int srcRank) const |
| Shuffle operation on group level. | |
| template<class T > | |
| T | shfl_down (T var, unsigned int lane_delta) const |
| Shuffle down operation on group level. | |
| template<class T > | |
| T | shfl_up (T var, unsigned int lane_delta) const |
| Shuffle up operation on group level. | |
| unsigned long long | ballot (int pred) const |
| Ballot function on group level. | |
| int | any (int pred) const |
| Any function on group level. | |
| int | all (int pred) const |
| All function on group level. | |
| template<typename T > | |
| unsigned long long | match_any (T value) const |
| Match any function on group level. | |
| template<typename T > | |
| unsigned long long | match_all (T value, int &pred) const |
| Match all function on group level. | |
 Public Member Functions inherited from cooperative_groups::thread_group | |
| uint32_t | size () const |
| unsigned int | cg_type () const |
| Returns the type of the group. | |
| uint32_t | thread_rank () const |
| Rank of the calling thread within [0, size() ). | |
| bool | is_valid () const |
| Returns true if the group has not violated any API constraints. | |
| void | sync () const |
| Synchronizes the threads in the group. | |
Protected Member Functions | |
| coalesced_group (lane_mask member_mask) | |
| Protected Member Functions inherited from cooperative_groups::thread_group | |
| thread_group (internal::group_type type, uint32_t size=static_cast< uint64_t >(0), uint64_t mask=static_cast< uint64_t >(0)) | |
Friends | |
| coalesced_group | coalesced_threads () |
| User-exposed API to create coalesced groups. | |
| thread_group | tiled_partition (const thread_group &parent, unsigned int tile_size) |
| User-exposed API to partition groups. | |
| coalesced_group | tiled_partition (const coalesced_group &parent, unsigned int tile_size) |
| coalesced_group | binary_partition (const coalesced_group &cgrp, bool pred) |
| Binary partition. | |
| template<unsigned int fsize, class fparent > | |
| coalesced_group | binary_partition (const thread_block_tile< fsize, fparent > &tgrp, bool pred) |
Additional Inherited Members | |
| Protected Attributes inherited from cooperative_groups::thread_group | |
| uint32_t | _type |
| uint32_t | _size |
| Type of the thread_group. | |
| uint64_t | _mask |
| Total number of threads in the tread_group. | |
| struct cooperative_groups::thread_group::_coalesced_info | coalesced_info |
Detailed Description
The coalesced_group cooperative group type.
Represents an active thread group in a wavefront. This group type also supports sub-wave level intrinsics.
- Note
- This is implemented on Linux and is under development on Microsoft Windows.
The documentation for this class was generated from the following file:
- /home/docs/checkouts/readthedocs.org/user_builds/advanced-micro-devices-hip/checkouts/clr/hipamd/include/hip/amd_detail/amd_hip_cooperative_groups.h