reduce log sum operator

docs/CHANGELOG.md

@@ -4,6 +4,11 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased] - 2023-12-01
+
+## Added 
+- Reduce LogSum Operator
+
 ## [Unreleased] - 2023-12-05
 
 ## Added 

docs/SUMMARY.md

@@ -124,6 +124,7 @@
     * [tensor.is_inf](framework/operators/tensor/tensor.is\_inf.md)
     * [tensor.not](framework/operators/tensor/tensor.not.md)
     * [tensor.erf](framework/operators/tensor/tensor.erf.md)
+    * [tensor.reduce_log_sum](framework/operators/tensor/tensor.reduce_log_sum.md)
   * [Neural Network](framework/operators/neural-network/README.md)
     * [nn.relu](framework/operators/neural-network/nn.relu.md)
     * [nn.leaky\_relu](framework/operators/neural-network/nn.leaky\_relu.md)

docs/framework/compatibility.md

@@ -101,6 +101,7 @@ You can see below the list of current supported ONNX Operators:
 |                  [IsNaN](operators/tensor/tensor.is\_nan.md)                  | :white\_check\_mark: |
 |                  [IsInf](operators/tensor/tensor.is\_inf.md)                  | :white\_check\_mark: |
 |                     [Not](operators/tensor/tensor.not.md)                     | :white\_check\_mark: |
+|       [ReduceLogSum](operators/tensor/tensor.reduce\_log\_sum.md)             | :white\_check\_mark: |
 |       [Erf](operators/tensor/tensor.erf.md)                                   | :white\_check\_mark: |
 
 

docs/framework/operators/tensor/README.md

@@ -122,6 +122,7 @@ use orion::operators::tensor::TensorTrait;
 | [`tensor.is_nan`](tensor.is\_nan.md) | Returns which elements of the input are NaN. |
 | [`tensor.is_inf`](tensor.is\_inf.md) | Maps infinity to true and other values to false. |
 | [`tensor.not`](tensor.not.md) | Computes the logical negation of all elements in the input tensor. |
+| [`tensor.reduce_log_sum`](tensor.reduce\_log\_sum.md) | Computes the log sum of the input tensor's elements along the provided axes.  |
 | [`tensor.erf`](tensor.erf.md) | Computes the error function of the given input tensor element-wise. |
 
 ## Arithmetic Operations

docs/framework/operators/tensor/tensor.reduce_log_sum.md

@@ -0,0 +1,45 @@
+## tensor.reduce_log_sum
+
+```rust 
+   fn reduce_log_sum(self: @Tensor<T>, axis: usize, keepdims: bool) -> Tensor<T>;
+```
+
+Computes the log sum of the input tensor's elements along the provided axes.
+## Args
+
+* `self`(`@Tensor<T>`) - The input tensor.
+* `axis`(`usize`) - The dimension to reduce.
+* `keepdims`(`bool`) - If true, retains reduced dimensions with length 1.
+
+## Panics 
+
+* Panics if axis is not in the range of the input tensor's dimensions.
+
+## Returns
+
+A new `Tensor<T>` instance with the specified axis reduced by summing its elements.
+
+fn reduce_log_sum() -> Tensor<u32> {
+
+   let mut sizes = ArrayTrait::new();
+   sizes.append(2);
+   sizes.append(2);
+   sizes.append(2);
+
+   let mut data = ArrayTrait::new();
+   data.append(FixedTrait::new_unscaled(1, false));
+   data.append(FixedTrait::new_unscaled(2, false));
+   data.append(FixedTrait::new_unscaled(3, false));
+   data.append(FixedTrait::new_unscaled(4, false));
+   data.append(FixedTrait::new_unscaled(5, false));
+   data.append(FixedTrait::new_unscaled(6, false));
+   data.append(FixedTrait::new_unscaled(7, false));
+   data.append(FixedTrait::new_unscaled(8, false));
+
+   let tensor = TensorTrait::<FP16x16>::new(sizes.span(), data.span());
+
+    We can call `reduce_log_sum` function as follows.
+    return tensor.reduce_log_sum(axis: 2, keepdims: false);
+}
+>>> [[0x11938, 0x1f203], [0x265d9, 0x2b540]]
+```

nodegen/node/reduce_log_sum.py

@@ -0,0 +1,117 @@
+import numpy as np
+from nodegen.node import RunAll
+from ..helpers import  make_test, to_fp, Tensor, Dtype, FixedImpl
+import numpy as np
+
+
+class Reduce_log_sum(RunAll):
+    @staticmethod
+    def reduce_log_sum_fp8x23():
+        def reduce_log_sum_export_do_not_keepdims():
+            shape = [3, 2, 2]
+            axes = np.array([2], dtype=np.int64)
+            keepdims = False
+            x = np.reshape(np.arange(1, np.prod(shape) + 1, dtype=np.float32), shape)
+            y = np.log(np.sum(x, axis=tuple(axes), keepdims=False))
+
+            x = Tensor(Dtype.FP8x23, x.shape, to_fp(
+            x.flatten(), FixedImpl.FP8x23))
+            y = Tensor(Dtype.FP8x23, y.shape, to_fp(
+            y.flatten(), FixedImpl.FP8x23))
+
+            name = "reduce_log_sum_fp8x23_export_do_not_keepdims"
+            make_test(
+                [x], y, "input_0.reduce_log_sum(2, false)", name)
+
+        def reduce_log_sum_export_keepdims():
+            shape = [3, 2, 2]
+            axes = np.array([2], dtype=np.int64)
+            keepdims = True
+            x = np.reshape(np.arange(1, np.prod(shape) + 1, dtype=np.float32), shape).astype(np.int64)
+            y = np.log(np.sum(x, axis=tuple(axes), keepdims=True))
+
+            x = Tensor(Dtype.FP8x23, x.shape, to_fp(
+            x.flatten(), FixedImpl.FP8x23))
+            y = Tensor(Dtype.FP8x23, y.shape, to_fp(
+            y.flatten(), FixedImpl.FP8x23))
+
+            name = "reduce_log_sum_fp8x23_export_keepdims"
+            make_test(
+                [x], y, "input_0.reduce_log_sum(2, true)", name)
+
+        def reduce_log_sum_axis_0():
+            shape = [3, 3, 3]
+            axes = np.array([0], dtype=np.int64)
+            keepdims = True
+            x = np.reshape(np.arange(1, np.prod(shape) + 1), shape)
+            y = np.log(np.sum(x, axis=tuple(axes), keepdims=True))
+
+            x = Tensor(Dtype.FP8x23, x.shape, to_fp(
+            x.flatten(), FixedImpl.FP8x23))
+            y = Tensor(Dtype.FP8x23, y.shape, to_fp(
+            y.flatten(), FixedImpl.FP8x23))
+
+            name = "reduce_log_sum_fp8x23_export_negative_axes_keepdims"
+            make_test(
+                [x], y, "input_0.reduce_log_sum(0, true)", name)
+
+
+        reduce_log_sum_export_do_not_keepdims()
+        reduce_log_sum_export_keepdims()
+        reduce_log_sum_axis_0()
+
+    @staticmethod
+    def reduce_log_sum_fp16x16():
+        def reduce_log_sum_export_do_not_keepdims():
+            shape = [3, 2, 2]
+            axes = np.array([2], dtype=np.int64)
+            keepdims = False
+            x = np.reshape(np.arange(1, np.prod(shape) + 1, dtype=np.float32), shape).astype(np.int64)
+            y = np.log(np.sum(x, axis=tuple(axes), keepdims=False))
+
+            x = Tensor(Dtype.FP8x23, x.shape, to_fp(
+            x.flatten(), FixedImpl.FP8x23))
+            y = Tensor(Dtype.FP8x23, y.shape, to_fp(
+            y.flatten(), FixedImpl.FP8x23))
+
+            name = "reduce_log_sum_fp16x16_export_do_not_keepdims"
+            make_test(
+                [x], y, "input_0.reduce_log_sum(2, false)", name)
+
+        def reduce_log_sum_export_keepdims():
+            shape = [3, 2, 2]
+            axes = np.array([2], dtype=np.int64)
+            keepdims = True
+            x = np.reshape(np.arange(1, np.prod(shape) + 1, dtype=np.float32), shape).astype(np.int64)
+            y = np.log(np.sum(x, axis=tuple(axes), keepdims=True))
+
+
+            x = Tensor(Dtype.FP8x23, x.shape, to_fp(
+            x.flatten(), FixedImpl.FP8x23))
+            y = Tensor(Dtype.FP8x23, y.shape, to_fp(
+            y.flatten(), FixedImpl.FP8x23))
+
+            name = "reduce_log_sum_fp16x16_export_keepdims"
+            make_test(
+                [x], y, "input_0.reduce_log_sum(2, true)", name)
+
+        def reduce_log_sum_axis_0():
+            shape = [2, 2, 2]
+            axes = np.array([0], dtype=np.int64)
+            keepdims = True
+            x = np.reshape(np.arange(1, np.prod(shape) + 1, dtype=np.float32), shape).astype(np.int64)
+            y = np.log(np.sum(x, axis=tuple(axes), keepdims=True))
+
+            x = Tensor(Dtype.FP8x23, x.shape, to_fp(
+            x.flatten(), FixedImpl.FP8x23))
+            y = Tensor(Dtype.FP8x23, y.shape, to_fp(
+            y.flatten(), FixedImpl.FP8x23))
+
+            name = "reduce_log_sum_fp16x16_export_negative_axes_keepdims"
+            make_test(
+                [x], y, "input_0.reduce_log_sum(0, true)", name)
+
+
+        reduce_log_sum_export_do_not_keepdims()
+        reduce_log_sum_export_keepdims()
+        reduce_log_sum_axis_0()

src/operators/tensor/core.cairo

@@ -121,6 +121,7 @@ impl TensorSerde<T, impl TSerde: Serde<T>, impl TDrop: Drop<T>> of Serde<Tensor<
 /// is_nan - Returns which elements of the input are NaN.
 /// is_inf - Maps infinity to true and other values to false.
 /// not - Computes the logical negation of all elements in the input tensor.
+/// reduce_log_sum - Computes the log sum of the input tensor's elements along the provided axes. 
 /// erf - Computes the error function of the given input tensor element-wise.
 trait TensorTrait<T> {
     /// # tensor.new
@@ -4854,6 +4855,53 @@ trait TensorTrait<T> {
     /// ```
     ///
     fn not(self: @Tensor<T>) -> Tensor<T>;
+    /// ## tensor.reduce_log_sum
+    ///
+    /// ```rust 
+    ///    fn reduce_log_sum(self: @Tensor<T>, axis: usize, keepdims: bool) -> Tensor<T>;
+    /// ```
+    ///
+    /// Computes the log sum of the input tensor's elements along the provided axes.
+    /// ## Args
+    ///
+    /// * `self`(`@Tensor<T>`) - The input tensor.
+    /// * `axis`(`usize`) - The dimension to reduce.
+    /// * `keepdims`(`bool`) - If true, retains reduced dimensions with length 1.
+    ///
+    /// ## Panics 
+    /// 
+    /// * Panics if axis is not in the range of the input tensor's dimensions.
+    ///
+    /// ## Returns
+    ///
+    /// A new `Tensor<T>` instance with the specified axis reduced by summing its elements.
+    ///
+    /// fn reduce_log_sum() -> Tensor<u32> {
+    ///
+    ///    let mut sizes = ArrayTrait::new();
+    ///    sizes.append(2);
+    ///    sizes.append(2);
+    ///    sizes.append(2);
+    ///
+    ///    let mut data = ArrayTrait::new();
+    ///    data.append(FixedTrait::new_unscaled(1, false));
+    ///    data.append(FixedTrait::new_unscaled(2, false));
+    ///    data.append(FixedTrait::new_unscaled(3, false));
+    ///    data.append(FixedTrait::new_unscaled(4, false));
+    ///    data.append(FixedTrait::new_unscaled(5, false));
+    ///    data.append(FixedTrait::new_unscaled(6, false));
+    ///    data.append(FixedTrait::new_unscaled(7, false));
+    ///    data.append(FixedTrait::new_unscaled(8, false));
+    ///
+    ///    let tensor = TensorTrait::<FP16x16>::new(sizes.span(), data.span());
+    /// 
+    ///     We can call `reduce_log_sum` function as follows.
+    ///     return tensor.reduce_log_sum(axis: 2, keepdims: false);
+    /// }
+    /// >>> [[0x11938, 0x1f203], [0x265d9, 0x2b540]]
+    /// ```
+    ///
+    fn reduce_log_sum(self: @Tensor<T>, axis: usize, keepdims: bool) -> Tensor<T>;
     /// ## tensor.erf
     ///
     /// ```rust 

src/operators/tensor/implementations/tensor_bool.cairo

@@ -461,6 +461,10 @@ impl BoolTensor of TensorTrait<bool> {
     fn erf(self: @Tensor<bool>) -> Tensor<bool> {
         panic(array!['not supported!'])
     }
+
+    fn reduce_log_sum(self: @Tensor<bool>, axis: usize, keepdims: bool) -> Tensor<bool> {
+        panic(array!['not supported!'])
+    }
 }
 
 /// Implements partial equal for two `Tensor<bool>` using the `PartialEq` trait.

src/operators/tensor/implementations/tensor_fp16x16.cairo

@@ -518,6 +518,11 @@ impl FP16x16Tensor of TensorTrait<FP16x16> {
     ) -> Tensor<FP16x16> {
         math::concat_from_sequence::concat_from_sequence(sequence, axis, new_axis)
     }
+
+     fn reduce_log_sum(self: @Tensor<FP16x16>, axis: usize, keepdims: bool) -> Tensor<FP16x16> {
+        math::reduce_log_sum::reduce_log_sum(self, axis, keepdims)
+     }
+
 
     fn erf(self: @Tensor<FP16x16>) -> Tensor<FP16x16> {
         math::erf::erf(*self)

src/operators/tensor/implementations/tensor_fp16x16wide.cairo

@@ -484,6 +484,11 @@ impl FP16x16WTensor of TensorTrait<FP16x16W> {
     ) -> Tensor<FP16x16W> {
         math::concat_from_sequence::concat_from_sequence(sequence, axis, new_axis)
     }
+
+     fn reduce_log_sum(self: @Tensor<FP16x16W>, axis: usize, keepdims: bool) -> Tensor<FP16x16W> {
+        math::reduce_log_sum::reduce_log_sum(self, axis, keepdims)
+     }
+
 
     fn erf(self: @Tensor<FP16x16W>) -> Tensor<FP16x16W> {
         math::erf::erf(*self)

src/operators/tensor/implementations/tensor_fp32x32.cairo

@@ -519,6 +519,11 @@ impl FP32x32Tensor of TensorTrait<FP32x32> {
     ) -> Tensor<FP32x32> {
         math::concat_from_sequence::concat_from_sequence(sequence, axis, new_axis)
     }
+
+     fn reduce_log_sum(self: @Tensor<FP32x32>, axis: usize, keepdims: bool) -> Tensor<FP32x32> {
+        math::reduce_log_sum::reduce_log_sum(self, axis, keepdims)
+     }
+
 
     fn erf(self: @Tensor<FP32x32>) -> Tensor<FP32x32> {
         math::erf::erf(*self)

src/operators/tensor/implementations/tensor_fp64x64.cairo

@@ -520,6 +520,11 @@ impl FP64x64Tensor of TensorTrait<FP64x64> {
     ) -> Tensor<FP64x64> {
         math::concat_from_sequence::concat_from_sequence(sequence, axis, new_axis)
     }
+
+     fn reduce_log_sum(self: @Tensor<FP64x64>, axis: usize, keepdims: bool) -> Tensor<FP64x64> {
+        math::reduce_log_sum::reduce_log_sum(self, axis, keepdims)
+     }
+
 
     fn erf(self: @Tensor<FP64x64>) -> Tensor<FP64x64> {
         math::erf::erf(*self)

src/operators/tensor/implementations/tensor_fp8x23.cairo

@@ -519,6 +519,10 @@ impl FP8x23Tensor of TensorTrait<FP8x23> {
         math::concat_from_sequence::concat_from_sequence(sequence, axis, new_axis)
     }
 
+    fn reduce_log_sum(self: @Tensor<FP8x23>, axis: usize, keepdims: bool) -> Tensor<FP8x23> {
+        math::reduce_log_sum::reduce_log_sum(self, axis, keepdims)
+    }
+
     fn erf(self: @Tensor<FP8x23>) -> Tensor<FP8x23> {
         math::erf::erf(*self)
     }

src/operators/tensor/implementations/tensor_fp8x23wide.cairo

@@ -472,6 +472,10 @@ impl FP8x23WTensor of TensorTrait<FP8x23W> {
         math::concat_from_sequence::concat_from_sequence(sequence, axis, new_axis)
     }
 
+     fn reduce_log_sum(self: @Tensor<FP8x23W>, axis: usize, keepdims: bool) -> Tensor<FP8x23W> {
+        math::reduce_log_sum::reduce_log_sum(self, axis, keepdims)
+     }
+
     fn erf(self: @Tensor<FP8x23W>) -> Tensor<FP8x23W> {
         math::erf::erf(*self)
     }

src/operators/tensor/implementations/tensor_i32.cairo

@@ -516,6 +516,10 @@ impl I32Tensor of TensorTrait<i32> {
         math::concat_from_sequence::concat_from_sequence(sequence, axis, new_axis)
     }
 
+    fn reduce_log_sum(self: @Tensor<i32>, axis: usize, keepdims: bool) -> Tensor<i32> {
+        panic(array!['not supported!'])
+    }
+
     fn erf(self: @Tensor<i32>) -> Tensor<i32> {
         panic(array!['not supported!'])
     }

src/operators/tensor/implementations/tensor_i8.cairo

@@ -514,6 +514,10 @@ impl I8Tensor of TensorTrait<i8> {
         math::concat_from_sequence::concat_from_sequence(sequence, axis, new_axis)
     }
 
+     fn reduce_log_sum(self: @Tensor<i8>, axis: usize, keepdims: bool) -> Tensor<i8> {
+         panic(array!['not supported!'])
+     }
+
     fn erf(self: @Tensor<i8>) -> Tensor<i8> {
         panic(array!['not supported!'])
     }

src/operators/tensor/implementations/tensor_u32.cairo

@@ -457,6 +457,10 @@ impl U32Tensor of TensorTrait<u32> {
         math::concat_from_sequence::concat_from_sequence(sequence, axis, new_axis)
     }
 
+    fn reduce_log_sum(self: @Tensor<u32>, axis: usize, keepdims: bool) -> Tensor<u32> {
+         panic(array!['not supported!'])
+    }
+
     fn erf(self: @Tensor<u32>) -> Tensor<u32> {
         panic(array!['not supported!'])
     }

src/operators/tensor/math.cairo

@@ -62,4 +62,5 @@ mod sequence_insert;
 mod concat_from_sequence;
 mod is_nan;
 mod is_inf;
+mod reduce_log_sum;
 mod erf;