fix_moe (#49353)

paddle/phi/kernels/fusion/cutlass/moe_kernel_impl.h

@@ -318,6 +318,7 @@ __global__ void softmax_kernel_v4(
     const int seq_len_1,
     const int seq_len_2,
     const T scalar) {
+#if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 700
   for (int seq_id = blockIdx.x; seq_id < seq_len_1; seq_id += gridDim.x) {
     float data[ITEMS_PER_THREAD];
     int qk_offset;
@@ -370,6 +371,7 @@ __global__ void softmax_kernel_v4(
       qk_buf_[qk_offset] = (T)(data[i] * s_mean);
     }
   }
+#endif
 }
 
 template <typename T, int ITEMS_PER_THREAD>
@@ -380,6 +382,7 @@ __global__ void softmax_kernel_v4_half2(T* qk_buf_,
                                         const int seq_len_1,
                                         const int seq_len_2,
                                         const T scalar) {
+#if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 700
   using T2 = half2;
   T2* qk_buf_half2 = reinterpret_cast<T2*>(qk_buf_);
   const T2* attr_mask_half2 = (const T2*)attr_mask;
@@ -447,6 +450,7 @@ __global__ void softmax_kernel_v4_half2(T* qk_buf_,
       qk_buf_half2[qk_offset] = __hmul2(data[i], __float2half2_rn(s_mean));
     }
   }
+#endif
 }
 
 template <typename T, int ITEMS_PER_THREAD, int NUM>
@@ -457,6 +461,7 @@ __global__ void softmax_kernel_v5_half2(T* qk_buf_,
                                         const int seq_len_1,
                                         const int seq_len_2,
                                         const T scalar) {
+#if defined(__CUDA_ARCH__) && __CUDA_ARCH__ >= 700
   using T2 = half2;
   T2* qk_buf_half2 = reinterpret_cast<T2*>(qk_buf_);
   const T2* attr_mask_half2 = (const T2*)attr_mask;
@@ -579,6 +584,7 @@ __global__ void softmax_kernel_v5_half2(T* qk_buf_,
       }
     }
   }
+#endif
 }
 
 // --------      transpose_kernel      -------- //