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昇腾小AI

核切换

参考以下操作可将当前聚焦的核切换至指定的核,切核后会自动展示指定核代码中断处的位置。

  • 如果当前运行的核为aiv的“core 2”,指定切换的核为aiv的“core 3”
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    (msdebug) ascend aiv 3
    [Switching to focus on Kernel matmul_leakyrelu_custom, CoreId 3, Type aiv]
    * thread #1, name = 'matmul_leakyrel', stop reason = breakpoint 1.1
        frame #0: 0x000000000000fd3c device_debugdata`_ZN7AscendC13WaitEventImplEt_mix_aiv(flagId=1) at kernel_operator_sync_impl.h:142:5
       139
       140  __aicore__ inline void WaitEventImpl(uint16_t flagId)
       141  {
    -> 142      wait_flag_dev(flagId);
       143  }
       144
       145  __aicore__ inline void SetSyncBaseAddrImpl(uint64_t config)
    
    完成切换后,再次查询核信息可看到已切换至新指定的核id所在行。
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    (msdebug) ascend info cores
      CoreId  Type  Device Stream Task Block         PC               stop reason
       17     aic      1     3     0     0     0x12c0c00f1f88         breakpoint 1.1
        2     aiv      1     3     0     0     0x12c0c00f8fbc         breakpoint 1.1
    *   3     aiv      1     3     0     0     0x12c0c00f8d3c         breakpoint 1.1
    
  • 如果当前运行的核为aiv的“core 3”,指定切换的核为aic的“core 17”
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    (msdebug) ascend aic 17
    [Switching to focus on Kernel matmul_leakyrelu_custom, CoreId 17, Type aic]
    * thread #1, name = 'matmul_leakyrel', stop reason = breakpoint 1.1
        frame #0: 0x0000000000008f88 device_debugdata`_ZN7AscendC7BarrierEv_mix_aic at kfc_comm.h:39
       36
       37   namespace AscendC {
       38   __aicore__ inline void Barrier()
    -> 39   {
       40   #if defined(__CCE_KT_TEST__) && __CCE_KT_TEST__ == 1
       41       __asm__ __volatile__("" ::: "memory");
       42   #else
    
    完成切换后,再次查询核信息可看到已切换至新指定的核id所在行。
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    (msdebug) ascend info cores
      CoreId  Type  Device Stream Task Block         PC               stop reason
    *  17     aic      1     3     0     0     0x12c0c00f1f88         breakpoint 1.1
        2     aiv      1     3     0     0     0x12c0c00f8fbc         breakpoint 1.1
        3     aiv      1     3     0     0     0x12c0c00f8d3c         breakpoint 1.1
    
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