[BugFix] Add error hint for one_hot gpu version (#41335)

* add one_hot gpu hint

* move allow_out_of_range judgement

* delete useless unittest

paddle/phi/kernels/cpu/one_hot_kernel.cc

@@ -25,18 +25,12 @@ struct OneHotV2OpFunctor {
   DenseTensor* out_;
   int depth_;
   const DeviceContext& ctx_;
-  bool allow_out_of_range_;
 
   OneHotV2OpFunctor(const DenseTensor* in,
                     DenseTensor* out,
                     int depth,
-                    const DeviceContext& ctx,
-                    bool allow_out_of_range = false)
-      : in_(in),
-        out_(out),
-        depth_(depth),
-        ctx_(ctx),
-        allow_out_of_range_(allow_out_of_range) {}
+                    const DeviceContext& ctx)
+      : in_(in), out_(out), depth_(depth), ctx_(ctx) {}
 
   template <typename OutT>
   void apply() const {
@@ -45,13 +39,6 @@ struct OneHotV2OpFunctor {
     auto* p_out_data = ctx_.template Alloc<OutT>(out_);
     funcs::set_constant(ctx_, out_, 0.0);
 
-    if (allow_out_of_range_) {
-      for (int i = 0; i < numel; ++i) {
-        if (p_in_data[i] >= 0 && p_in_data[i] < depth_) {
-          *(p_out_data + i * depth_ + p_in_data[i]) = 1.0;
-        }
-      }
-    } else {
     for (int i = 0; i < numel; ++i) {
       PADDLE_ENFORCE_GE(
           p_in_data[i],
@@ -72,7 +59,6 @@ struct OneHotV2OpFunctor {
       *(p_out_data + i * depth_ + p_in_data[i]) = 1.0;
     }
   }
-  }
 };
 
 template <typename T, typename Context>
@@ -89,8 +75,7 @@ void OneHotRawKernel(const Context& dev_ctx,
   }
 
   phi::VisitDataType(dtype,
-                     OneHotV2OpFunctor<Context, T>(
-                         &x, out, depth, dev_ctx, allow_out_of_range));
+                     OneHotV2OpFunctor<Context, T>(&x, out, depth, dev_ctx));
 }
 
 }  // namespace phi

paddle/phi/kernels/gpu/one_hot_kernel.cu

@@ -29,7 +29,14 @@ __global__ void FillOutputKernel(const InT* p_in_data,
                                  const int64_t numel,
                                  const int depth) {
   int idx = blockIdx.x * blockDim.x + threadIdx.x;
-  if (idx < numel && p_in_data[idx] >= 0 && p_in_data[idx] < depth) {
+  if (idx < numel) {
+    PADDLE_ENFORCE(p_in_data[idx] >= 0 && p_in_data[idx] < depth,
+                   "Illegal index value, Input(input) value should be "
+                   "greater than or equal to 0, and less than depth [%d], "
+                   "but received [%lld].",
+                   depth,
+                   p_in_data[idx]);
+
     *(p_out_data + (idx * depth) + p_in_data[idx]) = 1.0;
   }
 }

python/paddle/fluid/tests/unittests/test_one_hot_v2_op.py

@@ -117,24 +117,6 @@ class TestOneHotOp_default_dtype_attr(OpTest):
         self.check_output()
 
 
-class TestOneHotOp_out_of_range(OpTest):
-    def setUp(self):
-        self.op_type = 'one_hot_v2'
-        depth = 10
-        x_lod = [[4, 1, 3, 3]]
-        x = [np.random.choice([-1, depth]) for i in range(sum(x_lod[0]))]
-        x = np.array(x).astype('int32').reshape([sum(x_lod[0])])
-
-        out = np.zeros(shape=(np.product(x.shape), depth)).astype('float32')
-
-        self.inputs = {'X': (x, x_lod)}
-        self.attrs = {'depth': depth, 'allow_out_of_range': True}
-        self.outputs = {'Out': (out, x_lod)}
-
-    def test_check_output(self):
-        self.check_output()
-
-
 class TestOneHotOp_exception(unittest.TestCase):
     def setUp(self):
         self.op_type = 'one_hot_v2'