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Composable Kernel: /home/docs/checkouts/readthedocs.org/user_builds/advanced-micro-devices-composable-kernel/checkouts/develop/include/ck/utility/get_id.hpp Source File

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 // SPDX-License-Identifier: MIT
 // Copyright (c) 2018-2025, Advanced Micro Devices, Inc. All rights reserved.
  
 #pragma once
  
 #include "ck/ck.hpp"
  
 namespace ck {
  
 __device__ constexpr index_t get_warp_size()
 {
 #if defined(__HIP_DEVICE_COMPILE__)
 #if defined(__GFX9__)
     return 64;
 #else
     return 32;
 #endif
 #else
     return 64;
 #endif
 }
  
 inline __host__ index_t get_warp_size()
 {
 #if !(defined(__HIPCC_RTC__) || defined(CK_CODE_GEN_RTC))
     int device  = 0;
     int result  = 0;
     auto status = hipGetDevice(&device);
     if(status == hipSuccess)
     {
         status = hipDeviceGetAttribute(&result, hipDeviceAttributeWarpSize, device);
         if(status == hipSuccess)
         {
             return result;
         }
     }
 #endif
     return 64;
 }
  
 __device__ index_t get_thread_local_1d_id() { return threadIdx.x; }
  
 __device__ index_t get_thread_global_1d_id() { return blockIdx.x * blockDim.x + threadIdx.x; }
  
 __device__ index_t get_warp_local_1d_id() { return threadIdx.x / get_warp_size(); }
  
 __device__ index_t get_block_1d_id() { return blockIdx.x; }
  
 __device__ index_t get_grid_size() { return gridDim.x; }
  
 __device__ index_t get_block_size() { return blockDim.x; }
  
 } // namespace ck