[v1.7.x] Backport apache#17177 to 1.7.x (Fix incorrect calculation re…

…sults when the C locale is set to a locale that uses commas as the decimal separator) (apache#18147)

* Add a test for floating point parsing locale invariance

* Use locale-invariant dmlc:stod/stof instead of std:stod/stof

* Change the new operator tutorial to use dmlc:stod instead of std::stod

* Rename locale invariance test

* Skip test_scalarop_locale_invariance if the locales aren't available

* Fix linter errors due to incorrect include order

cpp-package/include/mxnet-cpp/optimizer.h

@@ -27,6 +27,7 @@
 #ifndef MXNET_CPP_OPTIMIZER_H_
 #define MXNET_CPP_OPTIMIZER_H_
 
+#include <dmlc/strtonum.h>
 #include <map>
 #include <vector>
 #include <string>
@@ -84,7 +85,7 @@ class Optimizer {
   Optimizer *SetLRScheduler(std::unique_ptr<LRScheduler> lrScheduler) {
     CHECK(lrScheduler);
     lrScheduler_ = std::move(lrScheduler);
-    lrScheduler_->SetLR(std::stof(params_["lr"]));
+    lrScheduler_->SetLR(dmlc::stof(params_["lr"]));
     return this;
   }
   /*!

cpp-package/include/mxnet-cpp/optimizer.hpp

@@ -26,6 +26,7 @@
 #ifndef MXNET_CPP_OPTIMIZER_HPP_
 #define MXNET_CPP_OPTIMIZER_HPP_
 
+#include <dmlc/strtonum.h>
 #include <algorithm>
 #include <utility>
 #include <numeric>
@@ -116,11 +117,11 @@ inline float Optimizer::GetLR_(int index) {
   if (nullptr != lrScheduler_) {
     return lrScheduler_->GetLR(num_update_);
   }
-  return std::stof(params_["lr"]);
+  return dmlc::stof(params_["lr"]);
 }
 
 inline float Optimizer::GetWD_(int index) {
-  float wd = std::stof(params_["wd"]);
+  float wd = dmlc::stof(params_["wd"]);
   return wd;
 }
 
@@ -362,9 +363,9 @@ inline void AdamOptimizer::Update(int index, NDArray weight, NDArray grad) {
   auto values = GetParamValues_();
   CHECK_EQ(keys.size(), values.size());
 
-  float lr = std::stof(params_["lr"]);
-  float b1 = std::stof(params_["beta1"]);
-  float b2 = std::stof(params_["beta2"]);
+  float lr = dmlc::stof(params_["lr"]);
+  float b1 = dmlc::stof(params_["beta1"]);
+  float b2 = dmlc::stof(params_["beta2"]);
   float t = count_[index];
   float coef1 = 1.0f - std::pow(b1, t);
   float coef2 = 1.0f - std::pow(b2, t);
@@ -407,15 +408,15 @@ inline void AdaGradOptimizer::Update(int index, NDArray weight, NDArray grad) {
     CreateState_(index, weight);
   }
 
-  float eps = std::stof(params_["eps"]);
+  float eps = dmlc::stof(params_["eps"]);
   float lr = GetLR_(index);
   float wd = GetWD_(index);
   UpdateCount_(index);
   if (params_.count("rescale_grad") > 0) {
-    grad *= std::stof(params_["rescale_grad"]);
+    grad *= dmlc::stof(params_["rescale_grad"]);
   }
   if (params_.count("clip_gradient") > 0) {
-    _clip(grad, std::stof(params_["clip_gradient"]));
+    _clip(grad, dmlc::stof(params_["clip_gradient"]));
   }
   auto& history = *history_[index];
   history += grad * grad;
@@ -448,16 +449,16 @@ inline void AdaDeltaOptimizer::Update(int index, NDArray weight, NDArray grad) {
     CreateState_(index, weight);
   }
 
-  float rho = std::stof(params_["rho"]);
-  float epsilon = std::stof(params_["epsilon"]);
+  float rho = dmlc::stof(params_["rho"]);
+  float epsilon = dmlc::stof(params_["epsilon"]);
   float wd = GetWD_(index);
   UpdateCount_(index);
 
   if (params_.count("rescale_grad") > 0) {
-    grad *= std::stof(params_["rescale_grad"]);
+    grad *= dmlc::stof(params_["rescale_grad"]);
   }
   if (params_.count("clip_gradient") > 0) {
-    _clip(grad, std::stof(params_["clip_gradient"]));
+    _clip(grad, dmlc::stof(params_["clip_gradient"]));
   }
 
   auto& acc_g = *acc_g_[index];

docs/static_site/src/pages/api/faq/new_op.md

@@ -204,7 +204,7 @@ Simple arguments can be parsed like
 NNVM_REGISTER_OP(scalar_op)
 .set_attr_parser(
   [](NodeAttrs* attrs) {
-    attrs->parsed = std::stod(attrs->dict["scalar"]);
+    attrs->parsed = dmlc::stod(attrs->dict["scalar"]);
   })
 ```
 

plugin/torch/torch_function.h

@@ -28,6 +28,7 @@
 #include "./torch_base.h"
 #include <mxnet/base.h>
 #include <mxnet/ndarray.h>
+#include <dmlc/strtonum.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string>
@@ -69,7 +70,7 @@ void TorchRunOp(std::vector<NDArray> arr_in,
         lua_pushinteger(L, std::stoi(val));
         break;
       case 'f':
-        lua_pushnumber(L, std::stof(val));
+        lua_pushnumber(L, dmlc::stof(val));
         break;
       case 's':
         lua_pushstring(L, val.c_str());

src/nnvm/legacy_op_util.cc

@@ -23,6 +23,7 @@
  * \brief Utility to adapt OpProperty to the new NNVM registery
  */
 #include <dmlc/base.h>
+#include <dmlc/strtonum.h>
 #include <mxnet/base.h>
 #include <mxnet/operator.h>
 #include <mxnet/op_attr_types.h>
@@ -511,7 +512,7 @@ void RegisterLegacyNDFunc() {
           const std::string& name = reg->arguments[i+reg->num_use_vars].name;
           auto s = dict.find(name);
           CHECK(s != dict.end()) << "Missing scalar param " << name;
-          scalars.push_back(std::stof(s->second));
+          scalars.push_back(dmlc::stof(s->second));
           dict.erase(s);
         }
 

src/operator/contrib/gradient_multiplier_op.cc

@@ -23,6 +23,7 @@
  * \brief
  * \author Istvan Fehervari
 */
+#include <dmlc/strtonum.h>
 #include "../tensor/elemwise_unary_op.h"
 #include "../tensor/elemwise_binary_scalar_op.h"
 
@@ -77,7 +78,7 @@ multiplies the gradient from the subsequent level by a scalar factor lambda and
 the preceding layer.
 )code" ADD_FILELINE)
 .set_attr_parser([](NodeAttrs* attrs) {
-    attrs->parsed = std::stod(attrs->dict["scalar"]);
+    attrs->parsed = dmlc::stod(attrs->dict["scalar"]);
   })
 .set_attr<FInferStorageType>("FInferStorageType", ElemwiseStorageType<1, 1, false, true, true>)
 .set_attr<FCompute>("FCompute<cpu>", UnaryOp::IdentityCompute<cpu>)

src/operator/numpy/np_boolean_mask_assign.cc

@@ -22,6 +22,7 @@
  * \brief CPU implementation of Boolean Mask Assign
  */
 
+#include <dmlc/strtonum.h>
 #include "../../common/utils.h"
 #include "../contrib/boolean_mask-inl.h"
 
@@ -272,7 +273,7 @@ void NumpyBooleanAssignForwardCPU(const nnvm::NodeAttrs& attrs,
     MSHADOW_TYPE_SWITCH_WITH_BOOL(data.type_flag_, DType, {
       Kernel<BooleanAssignCPUKernel<true>, cpu>::Launch(
         s, valid_num, data.dptr<DType>(), prefix_sum.data(), prefix_sum.size(),
-        leading, middle, trailing, static_cast<DType>(std::stod(attrs.dict.at("value"))));
+        leading, middle, trailing, static_cast<DType>(dmlc::stod(attrs.dict.at("value"))));
     });
   }
 }

src/operator/numpy/np_boolean_mask_assign.cu

@@ -23,6 +23,7 @@
  */
 
 #include <cub/cub.cuh>
+#include <dmlc/strtonum.h>
 #include "../../common/utils.h"
 #include "../contrib/boolean_mask-inl.h"
 
@@ -252,7 +253,7 @@ void NumpyBooleanAssignForwardGPU(const nnvm::NodeAttrs& attrs,
     }
   } else {
     CHECK(attrs.dict.find("value") != attrs.dict.end()) << "value is not provided";
-    double value = std::stod(attrs.dict.at("value"));
+    double value = dmlc::stod(attrs.dict.at("value"));
     MSHADOW_TYPE_SWITCH_WITH_BOOL(data.type_flag_, DType, {
       Kernel<BooleanAssignGPUKernel<true>, gpu>::Launch(
         s, leading * valid_num * trailing, data.dptr<DType>(), prefix_sum, mask_size + 1,

src/operator/numpy/np_elemwise_broadcast_logic_op.cc

@@ -30,6 +30,7 @@
 #include "../tvmop/op_module.h"
 #endif  // MXNET_USE_TVM_OP
 
+#include <dmlc/strtonum.h>
 #include "../tensor/elemwise_binary_broadcast_op.h"
 #include "../tensor/elemwise_binary_scalar_op.h"
 
@@ -225,7 +226,7 @@ struct TVMBinaryBroadcastScalarCompute {
   .set_num_inputs(1)                                                                        \
   .set_num_outputs(1)                                                                       \
   .set_attr_parser([](NodeAttrs* attrs) {                                                   \
-    attrs->parsed = std::stod(attrs->dict["scalar"]);                                       \
+    attrs->parsed = dmlc::stod(attrs->dict["scalar"]);                                       \
   })                                                                                        \
   .set_attr<nnvm::FListInputNames>("FListInputNames",                                       \
   [](const NodeAttrs& attrs) {                                                              \

src/operator/numpy/np_elemwise_broadcast_op.cc

@@ -23,6 +23,7 @@
  * \brief CPU Implementation of basic functions for elementwise numpy binary broadcast operator.
  */
 
+#include <dmlc/strtonum.h>
 #include "./np_elemwise_broadcast_op.h"
 
 namespace mxnet {
@@ -33,7 +34,7 @@ namespace op {
   .set_num_inputs(1)                                                \
   .set_num_outputs(1)                                               \
   .set_attr_parser([](NodeAttrs* attrs) {                           \
-      attrs->parsed = std::stod(attrs->dict["scalar"]);             \
+      attrs->parsed = dmlc::stod(attrs->dict["scalar"]);             \
     })                                                              \
   .set_attr<mxnet::FInferShape>("FInferShape", ElemwiseShape<1, 1>) \
   .set_attr<nnvm::FInferType>("FInferType", NumpyBinaryScalarType)  \

src/operator/numpy/np_elemwise_broadcast_op_extended.cc

@@ -23,6 +23,7 @@
  * \brief CPU Implementation of extended functions for elementwise numpy binary broadcast operator.
  */
 
+#include <dmlc/strtonum.h>
 #include "../../common/utils.h"
 #include "./np_elemwise_broadcast_op.h"
 
@@ -34,7 +35,7 @@ namespace op {
   .set_num_inputs(1)                                                \
   .set_num_outputs(1)                                               \
   .set_attr_parser([](NodeAttrs* attrs) {                           \
-      attrs->parsed = std::stod(attrs->dict["scalar"]);             \
+      attrs->parsed = dmlc::stod(attrs->dict["scalar"]);             \
     })                                                              \
   .set_attr<mxnet::FInferShape>("FInferShape", ElemwiseShape<1, 1>) \
   .set_attr<nnvm::FInferType>("FInferType", NumpyBinaryScalarType)  \
@@ -87,7 +88,7 @@ NNVM_REGISTER_OP(_npi_lcm_scalar)
 .set_num_inputs(1)
 .set_num_outputs(1)
 .set_attr_parser([](NodeAttrs* attrs) {
-    attrs->parsed = std::stod(attrs->dict["scalar"]);
+    attrs->parsed = dmlc::stod(attrs->dict["scalar"]);
   })
 .set_attr<mxnet::FInferShape>("FInferShape", ElemwiseShape<1, 1>)
 .set_attr<nnvm::FInferType>("FInferType", ElemwiseIntType<1, 1>)
@@ -175,7 +176,7 @@ NNVM_REGISTER_OP(_npi_bitwise_xor_scalar)
 .set_num_inputs(1)
 .set_num_outputs(1)
 .set_attr_parser([](NodeAttrs* attrs) {
-    attrs->parsed = std::stod(attrs->dict["scalar"]);
+    attrs->parsed = dmlc::stod(attrs->dict["scalar"]);
   })
 .set_attr<mxnet::FInferShape>("FInferShape", ElemwiseShape<1, 1>)
 .set_attr<nnvm::FInferType>("FInferType", ElemwiseIntType<1, 1>)
@@ -192,7 +193,7 @@ NNVM_REGISTER_OP(_npi_bitwise_or_scalar)
 .set_num_inputs(1)
 .set_num_outputs(1)
 .set_attr_parser([](NodeAttrs* attrs) {
-    attrs->parsed = std::stod(attrs->dict["scalar"]);
+    attrs->parsed = dmlc::stod(attrs->dict["scalar"]);
   })
 .set_attr<mxnet::FInferShape>("FInferShape", ElemwiseShape<1, 1>)
 .set_attr<nnvm::FInferType>("FInferType", ElemwiseIntType<1, 1>)
@@ -275,13 +276,13 @@ MXNET_OPERATOR_REGISTER_NP_BINARY_SCALAR(_npi_rarctan2_scalar)
 
 MXNET_OPERATOR_REGISTER_BINARY(_backward_npi_arctan2_scalar)
 .add_argument("scalar", "float", "scalar value")
-.set_attr_parser([](NodeAttrs *attrs) { attrs->parsed = std::stod(attrs->dict["scalar"]); })
+.set_attr_parser([](NodeAttrs *attrs) { attrs->parsed = dmlc::stod(attrs->dict["scalar"]); })
 .set_attr<FCompute>("FCompute<cpu>",
                     BinaryScalarOp::Backward<cpu, mshadow_op::arctan2_grad>);
 
 MXNET_OPERATOR_REGISTER_BINARY(_backward_npi_rarctan2_scalar)
 .add_argument("scalar", "float", "scalar value")
-.set_attr_parser([](NodeAttrs *attrs) { attrs->parsed = std::stod(attrs->dict["scalar"]); })
+.set_attr_parser([](NodeAttrs *attrs) { attrs->parsed = dmlc::stod(attrs->dict["scalar"]); })
 .set_attr<FCompute>("FCompute<cpu>",
                     BinaryScalarOp::Backward<cpu, mshadow_op::arctan2_rgrad>);
 
@@ -363,12 +364,12 @@ NNVM_REGISTER_OP(_backward_npi_ldexp)
 
 MXNET_OPERATOR_REGISTER_BINARY(_backward_npi_ldexp_scalar)
 .add_argument("scalar", "float", "scalar value")
-.set_attr_parser([](NodeAttrs *attrs) { attrs->parsed = std::stod(attrs->dict["scalar"]); })
+.set_attr_parser([](NodeAttrs *attrs) { attrs->parsed = dmlc::stod(attrs->dict["scalar"]); })
 .set_attr<FCompute>("FCompute<cpu>", BinaryScalarOp::Backward<cpu, mshadow_op::ldexp_grad>);
 
 MXNET_OPERATOR_REGISTER_BINARY(_backward_npi_rldexp_scalar)
 .add_argument("scalar", "float", "scalar value")
-.set_attr_parser([](NodeAttrs *attrs) { attrs->parsed = std::stod(attrs->dict["scalar"]); })
+.set_attr_parser([](NodeAttrs *attrs) { attrs->parsed = dmlc::stod(attrs->dict["scalar"]); })
 .set_attr<FCompute>("FCompute<cpu>", BinaryScalarOp::Backward<cpu, mshadow_op::rldexp_grad>);
 
 }  // namespace op

src/operator/numpy/np_true_divide.cc

@@ -23,6 +23,7 @@
  * \brief CPU Implementation of true_divide operator.
  */
 
+#include <dmlc/strtonum.h>
 #include "./np_true_divide-inl.h"
 
 namespace mxnet {
@@ -88,7 +89,7 @@ NNVM_REGISTER_OP(_npi_true_divide_scalar)
 .set_num_inputs(1)
 .set_num_outputs(1)
 .set_attr_parser([](NodeAttrs* attrs) {
-    attrs->parsed = std::stod(attrs->dict["scalar"]);
+    attrs->parsed = dmlc::stod(attrs->dict["scalar"]);
   })
 .set_attr<mxnet::FInferShape>("FInferShape", ElemwiseShape<1, 1>)
 .set_attr<nnvm::FInferType>("FInferType", TrueDivideType<1>)
@@ -111,7 +112,7 @@ NNVM_REGISTER_OP(_npi_rtrue_divide_scalar)
 .set_num_inputs(1)
 .set_num_outputs(1)
 .set_attr_parser([](NodeAttrs* attrs) {
-  attrs->parsed = std::stod(attrs->dict["scalar"]);
+  attrs->parsed = dmlc::stod(attrs->dict["scalar"]);
   })
 .set_attr<mxnet::FInferShape>("FInferShape", ElemwiseShape<1, 1>)
 .set_attr<nnvm::FInferType>("FInferType", TrueDivideType<1>)

src/operator/subgraph/mkldnn/mkldnn_post_quantize_align_scale_property.h

@@ -21,6 +21,7 @@
 #define MXNET_OPERATOR_SUBGRAPH_MKLDNN_MKLDNN_POST_QUANTIZE_ALIGN_SCALE_PROPERTY_H_
 #if MXNET_USE_MKLDNN == 1
 
+#include <dmlc/strtonum.h>
 #include <string>
 #include <vector>
 #include "../common.h"
@@ -146,8 +147,8 @@ class SgMKLDNNPostQuantizeAlignScaleProperty : public SubgraphProperty {
     float min_calib = 0.0f;
     float max_calib = 0.0f;
     for (size_t i = 0; i < subgraph_nodes.size(); ++i) {
-      auto this_min_calib = std::stof(subgraph_nodes[i]->attrs.dict["min_calib_range"]);
-      auto this_max_calib = std::stof(subgraph_nodes[i]->attrs.dict["max_calib_range"]);
+      auto this_min_calib = dmlc::stof(subgraph_nodes[i]->attrs.dict["min_calib_range"]);
+      auto this_max_calib = dmlc::stof(subgraph_nodes[i]->attrs.dict["max_calib_range"]);
       if (min_calib > this_min_calib) min_calib = this_min_calib;
       if (max_calib < this_max_calib) max_calib = this_max_calib;
     }

src/operator/tensor/elemwise_binary_scalar_op.h

@@ -26,6 +26,7 @@
 #define MXNET_OPERATOR_TENSOR_ELEMWISE_BINARY_SCALAR_OP_H_
 
 #include <mxnet/operator_util.h>
+#include <dmlc/strtonum.h>
 #include <vector>
 #include <utility>
 #include "../mshadow_op.h"
@@ -400,7 +401,7 @@ class BinaryScalarOp : public UnaryOp {
   .set_num_inputs(1)                                                \
   .set_num_outputs(1)                                               \
   .set_attr_parser([](NodeAttrs* attrs) {                           \
-      attrs->parsed = std::stod(attrs->dict["scalar"]);             \
+      attrs->parsed = dmlc::stod(attrs->dict["scalar"]);            \
     })                                                              \
   .set_attr<mxnet::FInferShape>("FInferShape", ElemwiseShape<1, 1>)  \
   .set_attr<nnvm::FInferType>("FInferType", ElemwiseType<1, 1>)     \