[TOP] Level 3 complete (#7)

nnvm/CMakeLists.txt

@@ -53,7 +53,10 @@ mxnet_source_group("Source\\core"   GLOB "src/core/*.cc")
 mxnet_source_group("Source\\pass"   GLOB "src/pass/*.cc")
 
 
-FILE(GLOB_RECURSE SOURCE "src/*.cc" "src/*.h" "include/*.h")
+FILE(GLOB_RECURSE SOURCE
+   src/c_api/*.cc
+   src/core/*.cc
+   src/pass/*.cc)
 
 if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/dmlc-core/CMakeLists.txt)
   include_directories(${CMAKE_CURRENT_SOURCE_DIR}/dmlc-core/include)

nnvm/Makefile

@@ -51,10 +51,10 @@ else
 	NO_WHOLE_ARCH= --no-whole-archive
 endif
 
-all: lib/libnnvm.a lib/libnnvm_example.$(SHARED_LIBRARY_SUFFIX)
+all: lib/libnnvm.a lib/libnnvm_top.$(SHARED_LIBRARY_SUFFIX)
 
 SRC = $(wildcard src/*.cc src/c_api/*.cc src/core/*.cc src/pass/*.cc)
-SRC_TOP = $(wildcard src/top/*.cc)
+SRC_TOP = $(wildcard src/top/*.cc, src/top/*/*.cc)
 ALL_OBJ = $(patsubst %.cc, build/%.o, $(SRC))
 TOP_OBJ = $(patsubst %.cc, build/%.o, $(SRC_TOP))
 ALL_DEP = $(ALL_OBJ)
@@ -72,7 +72,7 @@ lib/libnnvm.a: $(ALL_DEP)
 	@mkdir -p $(@D)
 	ar crv $@ $(filter %.o, $?)
 
-lib/libnnvm_example.$(SHARED_LIBRARY_SUFFIX): lib/libnnvm.a ${TOP_OBJ}
+lib/libnnvm_top.$(SHARED_LIBRARY_SUFFIX): lib/libnnvm.a ${TOP_OBJ}
 	@mkdir -p $(@D)
 	$(CXX) $(CFLAGS) -shared -o $@ $(filter %.o, $^) $(LDFLAGS) -Wl,${WHOLE_ARCH} lib/libnnvm.a -Wl,${NO_WHOLE_ARCH}
 

nnvm/include/nnvm/top/nn.h

@@ -54,15 +54,15 @@ struct DropoutParam : public dmlc::Parameter<DropoutParam> {
 
 struct BatchNormParam : public dmlc::Parameter<BatchNormParam> {
   int axis;
-  float epsilon;
-  float momentum;
+  double epsilon;
+  double momentum;
   bool center;
   bool scale;
 
   DMLC_DECLARE_PARAMETER(BatchNormParam) {
     DMLC_DECLARE_FIELD(axis).set_default(1)
       .describe("Specify which shape axis the channel is specified.");
-    DMLC_DECLARE_FIELD(epsilon).set_default(1e-5f)
+    DMLC_DECLARE_FIELD(epsilon).set_default(1e-5)
         .describe("Small float added to variance to avoid dividing by zero.");
     DMLC_DECLARE_FIELD(center).set_default(true)
         .describe("If True, add offset of `beta` to normalized tensor."
@@ -81,6 +81,8 @@ struct BatchNormParam : public dmlc::Parameter<BatchNormParam> {
   static const constexpr int kMovingVariance = 4;
 };
 
+
+// Shared by softmax and log_softmax
 struct SoftmaxParam : public dmlc::Parameter<SoftmaxParam> {
   int axis;
 
@@ -90,12 +92,12 @@ struct SoftmaxParam : public dmlc::Parameter<SoftmaxParam> {
   }
 };
 
-struct LogSoftmaxParam : public dmlc::Parameter<LogSoftmaxParam> {
-  int axis;
+struct LeakyReLUParam : public dmlc::Parameter<LeakyReLUParam> {
+  double alpha;
 
-  DMLC_DECLARE_PARAMETER(LogSoftmaxParam) {
-    DMLC_DECLARE_FIELD(axis).set_default(-1)
-      .describe("The axis to sum over when computing softmax.");
+  DMLC_DECLARE_PARAMETER(LeakyReLUParam) {
+    DMLC_DECLARE_FIELD(alpha).set_lower_bound(0.0).set_default(0.25)
+        .describe("slope coefficient for the negative half axis.");
   }
 };
 

nnvm/include/nnvm/top/tensor.h

@@ -40,6 +40,24 @@ struct CastParam : public dmlc::Parameter<CastParam> {
   }
 };
 
+struct ReshapeParam : public dmlc::Parameter<ReshapeParam> {
+  Tuple<int64_t> shape;
+
+  DMLC_DECLARE_PARAMETER(ReshapeParam) {
+    DMLC_DECLARE_FIELD(shape);
+  }
+};
+
+struct ScalarParam : public dmlc::Parameter<ScalarParam> {
+  double scalar;
+
+  DMLC_DECLARE_PARAMETER(ScalarParam) {
+    DMLC_DECLARE_FIELD(scalar);
+  }
+};
+
+
+
 }  // namespace top
 }  // namespace nnvm
 

nnvm/python/nnvm/libinfo.py

@@ -26,7 +26,7 @@ def find_lib_path():
     if hasattr(__builtin__, "NNVM_LIBRARY_NAME"):
         lib_name = __builtin__.NNVM_LIBRARY_NAME
     else:
-        lib_name = "libnnvm_example"
+        lib_name = "libnnvm_top"
 
     api_path = os.path.join(base_path, '../../lib/')
     cmake_build_path = os.path.join(base_path, '../../build/Release/')

nnvm/src/top/nn.cc → nnvm/src/top/nn/nn.cc

@@ -7,8 +7,8 @@
 #include <nnvm/node.h>
 #include <nnvm/op_attr_types.h>
 #include <nnvm/top/nn.h>
-#include "./op_common.h"
-#include "./elemwise_op_common.h"
+#include "../op_common.h"
+#include "../elemwise_op_common.h"
 
 namespace nnvm {
 namespace top {
@@ -126,6 +126,25 @@ NNVM_REGISTER_OP(dropout)
 // batchnorm
 DMLC_REGISTER_PARAMETER(BatchNormParam);
 
+inline bool BatchNormInferShape(const nnvm::NodeAttrs& attrs,
+                                std::vector<TShape> *in_shape,
+                                std::vector<TShape> *out_shape) {
+  CHECK_EQ(in_shape->size(), 5U)
+      << "Input:[data, gamma, beta, moving_mean, moving_var]";
+  CHECK_EQ(out_shape->size(), 3U);
+  const TShape &dshape = in_shape->at(0);
+  if (dshape.ndim() == 0) return false;
+  TShape bshape({dshape[1]});
+  NNVM_ASSIGN_INPUT_SHAPE(attrs, *in_shape, 1, bshape);
+  NNVM_ASSIGN_INPUT_SHAPE(attrs, *in_shape, 2, bshape);
+  NNVM_ASSIGN_INPUT_SHAPE(attrs, *in_shape, 3, bshape);
+  NNVM_ASSIGN_INPUT_SHAPE(attrs, *in_shape, 4, bshape);
+  NNVM_ASSIGN_OUTPUT_SHAPE(attrs, *out_shape, 0, dshape);
+  NNVM_ASSIGN_OUTPUT_SHAPE(attrs, *out_shape, 1, bshape);
+  NNVM_ASSIGN_OUTPUT_SHAPE(attrs, *out_shape, 2, bshape);
+  return true;
+}
+
 NNVM_REGISTER_OP(batch_norm)
 .describe(R"(Batch normalization layer (Ioffe and Szegedy, 2014).
 Normalizes the input at each batch, i.e. applies a transformation
@@ -167,6 +186,8 @@ axis to be the last item in the input shape.
 .set_num_inputs(5)
 .set_num_outputs(3)
 .set_attr_parser(ParamParser<BatchNormParam>)
+.set_attr<FInferShape>("FInferShape", BatchNormInferShape)
+.set_attr<FInferType>("FInferType", ElemwiseType<5, 3>)
 .set_attr<FListInputNames>("FListInputNames", [](const NodeAttrs& attrs) {
     return std::vector<std::string>{"data", "gamma", "beta", "moving_mean", "moving_var"};
   })
@@ -198,8 +219,6 @@ NNVM_REGISTER_OP(softmax)
 .set_support_level(1);
 
 // log_softmax
-DMLC_REGISTER_PARAMETER(LogSoftmaxParam);
-
 NNVM_REGISTER_OP(log_softmax)
 .describe(R"code(Computes softmax.
 
@@ -208,7 +227,23 @@ NNVM_REGISTER_OP(log_softmax)
 )code" NNVM_ADD_FILELINE)
 .set_num_inputs(1)
 .set_num_outputs(1)
-.set_attr_parser(ParamParser<LogSoftmaxParam>)
+.set_attr_parser(ParamParser<SoftmaxParam>)
+.set_attr<FInferShape>("FInferShape", ElemwiseShape<1, 1>)
+.set_attr<FInferType>("FInferType", ElemwiseType<1, 1>)
+.set_support_level(1);
+
+// leaky_rlu
+DMLC_REGISTER_PARAMETER(LeakyReLUParam);
+
+NNVM_REGISTER_OP(leaky_relu)
+.describe(R"code(Leaky version of a Rectified Linear Unit.
+
+`y = x > 0 ? x : alpha * x`
+
+)code" NNVM_ADD_FILELINE)
+.set_num_inputs(1)
+.set_num_outputs(1)
+.set_attr_parser(ParamParser<LeakyReLUParam>)
 .set_attr<FInferShape>("FInferShape", ElemwiseShape<1, 1>)
 .set_attr<FInferType>("FInferType", ElemwiseType<1, 1>)
 .set_support_level(1);

nnvm/src/top/tensor/elemwise.cc

+/*!
+ *  Copyright (c) 2017 by Contributors
+ * \file elemwise.cc
+ * \brief Elemenwise operators
+ */
+#include <nnvm/op.h>
+#include <nnvm/node.h>
+#include <nnvm/op_attr_types.h>
+#include <nnvm/top/tensor.h>
+#include "../op_common.h"
+#include "../elemwise_op_common.h"
+
+namespace nnvm {
+namespace top {
+// sigmoid
+NNVM_REGISTER_ELEMWISE_UNARY_OP(sigmoid)
+.describe(R"code(Computes sigmoid.
+
+.. math::
+   y = 1 / (1 + exp(-x))
+
+)code" NNVM_ADD_FILELINE)
+.set_support_level(1);
+
+// tanh
+NNVM_REGISTER_ELEMWISE_UNARY_OP(tanh)
+.describe(R"code(Returns the hyperbolic tangent of the input array, computed element-wise.
+
+.. math::
+   tanh(x) = sinh(x) / cosh(x)
+
+)code" NNVM_ADD_FILELINE)
+.set_support_level(1);
+
+// exp
+NNVM_REGISTER_ELEMWISE_UNARY_OP(exp)
+.describe(R"code(Returns the exp input array, computed element-wise.
+
+.. math::
+   exp(x)
+
+)code" NNVM_ADD_FILELINE)
+.set_support_level(1);
+
+// log
+NNVM_REGISTER_ELEMWISE_UNARY_OP(log)
+.describe(R"code(Returns the log input array, computed element-wise.
+
+.. math::
+   log(x)
+
+)code" NNVM_ADD_FILELINE)
+.set_support_level(1);
+
+// binary ops
+
+NNVM_REGISTER_ELEMWISE_BINARY_OP(elemwise_add)
+.describe(R"code(Element-wise add
+
+)code")
+.set_support_level(1);
+
+NNVM_REGISTER_ELEMWISE_BINARY_OP(elemwise_sub)
+.describe(R"code(Element-wise substraction
+
+)code"  NNVM_ADD_FILELINE)
+.set_support_level(1);
+
+NNVM_REGISTER_ELEMWISE_BINARY_OP(elemwise_mul)
+.describe(R"code(Element-wise multiplication
+
+)code"  NNVM_ADD_FILELINE)
+.set_support_level(1);
+
+NNVM_REGISTER_ELEMWISE_BINARY_OP(elemwise_div)
+.describe(R"code(Element-wise multiplication
+
+)code"  NNVM_ADD_FILELINE)
+.set_support_level(1);
+
+// negative
+NNVM_REGISTER_ELEMWISE_UNARY_OP(negative)
+.describe(R"code(Elemenwise numeric negative
+
+)code"  NNVM_ADD_FILELINE)
+.set_support_level(3);
+
+// copy
+NNVM_REGISTER_ELEMWISE_UNARY_OP(copy)
+.describe(R"code(Copy tensor to another one.
+
+)code"  NNVM_ADD_FILELINE)
+.set_support_level(3);
+
+// unary scalar op
+DMLC_REGISTER_PARAMETER(ScalarParam);
+
+NNVM_REGISTER_ELEMWISE_UNARY_OP(__add_scalar__)
+.describe(R"code(Tensor add scalar
+
+)code"  NNVM_ADD_FILELINE)
+.set_attr_parser(ParamParser<ScalarParam>)
+.set_support_level(3);
+
+NNVM_REGISTER_ELEMWISE_UNARY_OP(__sub_scalar__)
+.describe(R"code(Tensor substract scalar
+
+)code"  NNVM_ADD_FILELINE)
+.set_attr_parser(ParamParser<ScalarParam>)
+.set_support_level(3);
+
+NNVM_REGISTER_ELEMWISE_UNARY_OP(__rsub_scalar__)
+.describe(R"code(scalar substract Tensor
+
+)code"  NNVM_ADD_FILELINE)
+.set_attr_parser(ParamParser<ScalarParam>)
+.set_support_level(3);
+
+NNVM_REGISTER_ELEMWISE_UNARY_OP(__mul_scalar__)
+.describe(R"code(Tensor multiplies scalar
+
+)code"  NNVM_ADD_FILELINE)
+.set_attr_parser(ParamParser<ScalarParam>)
+.set_support_level(3);
+
+NNVM_REGISTER_ELEMWISE_UNARY_OP(__div_scalar__)
+.describe(R"code(Tensor divides scalar
+
+)code"  NNVM_ADD_FILELINE)
+.set_attr_parser(ParamParser<ScalarParam>)
+.set_support_level(3);
+
+NNVM_REGISTER_ELEMWISE_UNARY_OP(__rdiv_scalar__)
+.describe(R"code(scalar divides Tensor
+
+)code"  NNVM_ADD_FILELINE)
+.set_attr_parser(ParamParser<ScalarParam>)
+.set_support_level(3);
+
+NNVM_REGISTER_ELEMWISE_UNARY_OP(__pow_scalar__)
+.describe(R"code(Tensor power scalar
+
+)code"  NNVM_ADD_FILELINE)
+.set_attr_parser(ParamParser<ScalarParam>)
+.set_support_level(3);
+
+NNVM_REGISTER_ELEMWISE_UNARY_OP(__rpow_scalar__)
+.describe(R"code(scalar power Tensor
+
+)code"  NNVM_ADD_FILELINE)
+.set_attr_parser(ParamParser<ScalarParam>)
+.set_support_level(3);
+
+
+}  // namespace top
+}  // namespace nnvm

nnvm/src/top/tensor.cc → nnvm/src/top/tensor/transform.cc

 /*!
  *  Copyright (c) 2017 by Contributors
- * \file tensor.cc
- * \brief Property def of tensor operators.
+ * \file transform.cc
+ * \brief Injective transformation of shape or type.
  */
 #include <nnvm/op.h>
 #include <nnvm/node.h>
 #include <nnvm/op_attr_types.h>
 #include <nnvm/top/tensor.h>
-#include "./op_common.h"
-#include "./elemwise_op_common.h"
+#include "../op_common.h"
+#include "../elemwise_op_common.h"
 
 namespace nnvm {
 namespace top {
-// sigmoid
-NNVM_REGISTER_ELEMWISE_UNARY_OP(sigmoid)
-.describe(R"code(Computes sigmoid.
-
-.. math::
-   y = 1 / (1 + exp(-x))
-
-)code" NNVM_ADD_FILELINE)
-.set_support_level(1);
-
-// tanh
-NNVM_REGISTER_ELEMWISE_UNARY_OP(tanh)
-.describe(R"code(Returns the hyperbolic tangent of the input array, computed element-wise.
-
-.. math::
-   tanh(x) = sinh(x) / cosh(x)
-
-)code" NNVM_ADD_FILELINE)
-.set_support_level(1);
-
-// exp
-NNVM_REGISTER_ELEMWISE_UNARY_OP(exp)
-.describe(R"code(Returns the exp input array, computed element-wise.
-
-.. math::
-   exp(x)
-
-)code" NNVM_ADD_FILELINE)
-.set_support_level(1);
-
-// log
-NNVM_REGISTER_ELEMWISE_UNARY_OP(log)
-.describe(R"code(Returns the log input array, computed element-wise.
-
-.. math::
-   log(x)
-
-)code" NNVM_ADD_FILELINE)
-.set_support_level(1);
 
 // flatten
-inline bool FlattenInferShape(const nnvm::NodeAttrs& attrs,
+inline bool FlattenInferShape(const NodeAttrs& attrs,
                               std::vector<TShape> *in_attrs,
                               std::vector<TShape> *out_attrs) {
   CHECK_EQ(in_attrs->size(), 1U) << "Input: [data]";
@@ -100,7 +61,7 @@ Example::
 // concatenate
 DMLC_REGISTER_PARAMETER(ConcatenateParam);
 
-inline bool ConcatenateInferShape(const nnvm::NodeAttrs& attrs,
+inline bool ConcatenateInferShape(const NodeAttrs& attrs,
                                   std::vector<TShape> *in_shape,
                                   std::vector<TShape> *out_shape) {
   const ConcatenateParam& param = nnvm::get<ConcatenateParam>(attrs.parsed);
@@ -170,7 +131,7 @@ Example::
 
 )code" NNVM_ADD_FILELINE)
 .set_num_outputs(1)
-.set_num_inputs(nnvm::kVarg)
+.set_num_inputs(kVarg)
 .set_attr_parser(ParamParser<ConcatenateParam>)
 .add_argument("data", "Tensor-or-Tensor[]", "List of arrays to concatenate")
 .set_attr<FInferShape>("FInferShape", ConcatenateInferShape)
@@ -178,34 +139,11 @@ Example::
 .add_arguments(ConcatenateParam::__FIELDS__())
 .set_support_level(1);
 
-NNVM_REGISTER_ELEMWISE_BINARY_OP(elemwise_add)
-.describe(R"code(Element-wise add
-
-)code")
-.set_support_level(1);
-
-NNVM_REGISTER_ELEMWISE_BINARY_OP(elemwise_sub)
-.describe(R"code(Element-wise substraction
-
-)code"  NNVM_ADD_FILELINE)
-.set_support_level(1);
-
-NNVM_REGISTER_ELEMWISE_BINARY_OP(elemwise_mul)
-.describe(R"code(Element-wise multiplication
-
-)code"  NNVM_ADD_FILELINE)
-.set_support_level(1);
-
-NNVM_REGISTER_ELEMWISE_BINARY_OP(elemwise_div)
-.describe(R"code(Element-wise multiplication
-
-)code"  NNVM_ADD_FILELINE)
-.set_support_level(1);
 
 // cast
 DMLC_REGISTER_PARAMETER(CastParam);
 
-inline bool CastInferType(const nnvm::NodeAttrs& attrs,
+inline bool CastInferType(const NodeAttrs& attrs,
                           std::vector<int> *in_attrs,
                           std::vector<int> *out_attrs) {
   const CastParam& param = nnvm::get<CastParam>(attrs.parsed);
@@ -227,5 +165,155 @@ NNVM_REGISTER_OP(cast)
 .set_num_outputs(1)
 .set_support_level(1);
 
+
+// reshape
+DMLC_REGISTER_PARAMETER(ReshapeParam);
+
+inline bool ReshapeInferShape(const NodeAttrs& attrs,
+                              std::vector<TShape> *in_attrs,
+                              std::vector<TShape> *out_attrs) {
+  const ReshapeParam& param = nnvm::get<ReshapeParam>(attrs.parsed);
+  CHECK_GT(param.shape.ndim(), 0);
+  CHECK_EQ(in_attrs->size(), 1U) << "Input: [data]";
+  CHECK_EQ(out_attrs->size(), 1U);
+
+  const TShape &dshape = (*in_attrs)[0];
+  if (dshape.ndim() == 0) return false;
+
+  const Tuple<int64_t>& target_shape = param.shape;
+  std::vector<int64_t> oshape;
+  dim_t src_idx = 0;
+  int infer_idx = -1;
+
+  for (dim_t i = 0; i < target_shape.ndim(); ++i) {
+    int svalue = target_shape[i];
+    // special flag handling for shape inference.
+    if (svalue > 0) {
+      oshape.push_back(svalue);
+      ++src_idx;
+    } else if (svalue == 0) {
+      // keep same
+      CHECK_LT(src_idx, dshape.ndim());
+      oshape.push_back(dshape[src_idx++]);
+    } else if (svalue == -1) {
+      // inference based on rest
+      CHECK_LT(infer_idx, 0)
+          << "One and only one dim can be inferred";
+      infer_idx = i;
+      oshape.push_back(1);
+      ++src_idx;
+    } else if (svalue == -2) {
+      // copy all remaining dims from source
+      while (src_idx < dshape.ndim()) {
+        oshape.push_back(dshape[src_idx++]);
+      }
+    } else if (svalue == -3) {
+      // merge two dims from source
+      CHECK_LT(src_idx + 1, dshape.ndim());
+      dim_t d1 = dshape[src_idx++];
+      dim_t d2 = dshape[src_idx++];
+      oshape.push_back(d1 * d2);
+    } else if (svalue == -4) {
+      // split the source dim s into two dims
+      // read the left dim and then the right dim (either can be -1)
+      CHECK_LT(i + 2, target_shape.ndim());
+      CHECK_LT(src_idx, dshape.ndim());
+      dim_t d0 = dshape[src_idx++];
+      int d1 = target_shape[++i];
+      int d2 = target_shape[++i];
+      CHECK(d1 != -1 || d2 != -1) << "Split dims cannot both be -1.";
+      if (d1 == -1) d1 = d0 / d2;
+      if (d2 == -1) d2 = d0 / d1;
+      CHECK_EQ(d1 * d2, static_cast<int>(d0)) <<
+          "Split dims " << d1 << ", " << d2 << " do not divide original dim " << d0;
+      oshape.push_back(d1);
+      oshape.push_back(d2);
+    }
+  }
+
+  if (infer_idx >= 0) {
+    if (dshape.Size() > 0) {
+      int new_size = 1;
+      for (int x : oshape) {
+        new_size *= x;
+      }
+      oshape[infer_idx] = dshape.Size() / new_size;
+    } else {
+      oshape[infer_idx] = 0;
+    }
+  }
+  TShape out_shape(oshape.begin(), oshape.end());
+  CHECK_EQ(out_shape.Size(), dshape.Size())
+      << "Target shape size is different to source. "
+      << "Target: " << out_shape
+      << "\nSource: " << dshape;
+  NNVM_ASSIGN_OUTPUT_SHAPE(attrs, *out_attrs, 0, out_shape);
+  return true;
+}
+
+NNVM_REGISTER_OP(reshape)
+.describe(R"code(Reshapes the input array.
+
+Given an array and a shape, this function returns a copy of the array in the new shape.
+The shape is a tuple of integers such as (2,3,4).The size of the new shape should be same as the size of the input array.
+
+Example::
+
+  reshape([1,2,3,4], shape=(2,2)) = [[1,2], [3,4]]
+
+To give user more convenience in without doing manual shape inference,
+some dimensions of the shape can take special values from the set {0, -1, -2, -3, -4}.
+The significance of each is explained below:
+
+- ``0``  copy this dimension from the input to the output shape.
+
+  Example::
+
+  - input shape = (2,3,4), shape = (4,0,2), output shape = (4,3,2)
+  - input shape = (2,3,4), shape = (2,0,0), output shape = (2,3,4)
+
+- ``-1`` infers the dimension of the output shape by using the remainder of the input dimensions
+  keeping the size of the new array same as that of the input array.
+  At most one dimension of shape can be -1.
+
+  Example::
+
+  - input shape = (2,3,4), shape = (6,1,-1), output shape = (6,1,4)
+  - input shape = (2,3,4), shape = (3,-1,8), output shape = (3,1,8)
+  - input shape = (2,3,4), shape=(-1,), output shape = (24,)
+
+- ``-2`` copy all/remainder of the input dimensions to the output shape.
+
+  Example::
+
+  - input shape = (2,3,4), shape = (-2,), output shape = (2,3,4)
+  - input shape = (2,3,4), shape = (2,-2), output shape = (2,3,4)
+  - input shape = (2,3,4), shape = (-2,1,1), output shape = (2,3,4,1,1)
+
+- ``-3`` use the product of two consecutive dimensions of the input shape as the output dimension.
+
+  Example::
+
+  - input shape = (2,3,4), shape = (-3,4), output shape = (6,4)
+  - input shape = (2,3,4,5), shape = (-3,-3), output shape = (6,20)
+  - input shape = (2,3,4), shape = (0,-3), output shape = (2,12)
+  - input shape = (2,3,4), shape = (-3,-2), output shape = (6,4)
+
+- ``-4`` split one dimension of the input into two dimensions passed subsequent to -4 in shape (can contain -1).
+
+  Example::
+
+  - input shape = (2,3,4), shape = (-4,1,2,-2), output shape =(1,2,3,4)
+  - input shape = (2,3,4), shape = (2,-4,-1,3,-2), output shape = (2,1,3,4)
+
+)code" NNVM_ADD_FILELINE)
+.set_num_inputs(1)
+.set_num_outputs(1)
+.set_attr_parser(ParamParser<ReshapeParam>)
+.set_attr<FInferShape>("FInferShape", ReshapeInferShape)
+.set_attr<FInferType>("FInferType", ElemwiseType<1, 1>)
+.add_argument("data", "Tensor", "Input data.")
+.set_support_level(3);
+
 }  // namespace top
 }  // namespace nnvm

nnvm/tests/python/unittest/test_infer_shape.py

+import json
+import nnvm.symbol as sym
+import nnvm.graph as graph
+
+def infer_shape(sym):
+    g = graph.create(sym)
+    g._set_json_attr("shape_attr_key", "shape")
+    g = g.apply("InferShape")
+    jgraph = json.loads(g.apply("SaveJSON").json_attr("json"))
+    jnodes = jgraph["nodes"]
+    jnode_row_ptr = jgraph["node_row_ptr"]
+    sdict = {}
+    vshape = g.json_attr("shape")
+    for i, n in enumerate(jnodes):
+        begin, end = jnode_row_ptr[i], jnode_row_ptr[i + 1]
+        sdict[n["name"]] = vshape[begin:end]
+    return sdict
+
+# Level 1
+def test_dense():
+    x = sym.Variable("x", shape=(10, 20))
+    y = sym.dense(x, units=30, name="fc")
+    sdict = infer_shape(y)
+    assert(sdict["fc"][0] == [10, 30])
+    assert(sdict["fc_bias"][0] == [30])
+
+
+def test_concatenate():
+    x1 = sym.Variable("x", shape=(10, 20))
+    x2 = sym.Variable("y", shape=(10, 30))
+    z = sym.concatenate(x1, x2, name="concat")
+    sdict = infer_shape(z)
+    assert(sdict["concat"][0] == [10, 50])
+    z = sym.concatenate(x1, x1, axis=0, name="concat")
+    sdict = infer_shape(z)
+    assert(sdict["concat"][0] == [20, 20])
+
+
+def test_batchnorm():
+    x = sym.Variable("x", shape=(10, 20))
+    y = sym.batch_norm(1 / x, name="bn")
+    sdict = infer_shape(y)
+    assert(sdict["bn_gamma"][0] == [20])
+
+
+def test_flatten():
+    x = sym.Variable("x", shape=(10, 20, 10))
+    y = sym.flatten(x) * 2
+    y = sym.exp(y, name="y")
+    sdict = infer_shape(y)
+    assert(sdict["y"][0] == [10, 200])
+
+# Level 3
+def test_reshape():
+    def check(in_shape, tshape, out_shape):
+        x = sym.Variable("x", shape=in_shape)
+        y = sym.reshape(x, shape=tshape, name="y")
+        sdict = infer_shape(y)
+        assert(tuple(sdict["y"][0]) == tuple(out_shape))
+
+    check((4,), (2, 2), (2, 2))
+    check((2, 3, 4), (4, 0, 2), (4, 3, 2))
+    check((2, 3, 4), (2, 0, 0), (2, 3, 4))
+    check((2, 3, 4), (6, 1, -1), (6, 1, 4))
+    check((2, 3, 4), (3, -1, 8), (3, 1, 8))
+    check((2, 3, 4), (-1,), (24,))
+    check((2, 3, 4), (-2,), (2, 3, 4))
+    check((2, 3, 4), (2, -2), (2, 3, 4))
+    check((2, 3, 4), (-2, 1, 1), (2, 3, 4, 1, 1))
+    check((2, 3, 4), (-3, 4), (6, 4))
+    check((2, 3, 4, 5), (-3, -3), (6, 20))
+    check((2, 3, 4), (0, -3), (2, 12))
+    check((2, 3, 4), (-3, -2), (6, 4))
+    check((2, 3, 4), (-4, 1, 2, -2), (1, 2, 3, 4))
+    check((2, 3, 4), (2, -4, -1, 3, -2), (2, 1, 3, 4))
+
+if __name__ == "__main__":
+    test_dense()
+    test_concatenate()
+    test_batchnorm()
+    test_flatten()
+    test_reshape()

nnvm/tests/python/unittest/test_top_level3.py

+import nnvm.symbol as sym
+
+def test_reshape():
+    x = sym.Variable("x")
+    y = sym.reshape(x, shape=(10, 20), name="y")
+    assert(y.list_input_names() == ["x"])
+
+
+def test_scalar_op():
+    x = sym.Variable("x")
+    y = (1 / (x * 2) - 1) ** 2
+    assert(y.list_input_names() == ["x"])
+
+def test_leaky_relu():
+    x = sym.Variable("x")
+    y = sym.leaky_relu(x, alpha=0.1)
+    assert(y.list_input_names() == ["x"])
+
+
+if __name__ == "__main__":
+    test_scalar_op()
+    test_reshape()
+    test_leaky_relu()

nnvm/tests/travis/run_test.sh

@@ -37,22 +37,22 @@ if [ ${TASK} == "python_test" ]; then
     make clean
     make -j all || exit -1
     if [ ${TRAVIS_OS_NAME} == "osx" ]; then
-        python -m nose tests/python/ || exit -1
-        python3 -m nose tests/python/ || exit -1
+        python -m nose tests/python/unittest/ || exit -1
+        python3 -m nose tests/python/unittest/ || exit -1
     else
-        nosetests tests/python/ || exit -1
-        nosetests3 tests/python/ || exit -1
+        nosetests tests/python/unittest/ || exit -1
+        nosetests3 tests/python/unittest/ || exit -1
     fi
 
     make cython || exit -1
     make cython3 || exit -1
 
     if [ ${TRAVIS_OS_NAME} == "osx" ]; then
-        python -m nose tests/python/ || exit -1
-        python3 -m nose tests/python/ || exit -1
+        python -m nose tests/python/unittest/ || exit -1
+        python3 -m nose tests/python/unittest/ || exit -1
     else
-        nosetests tests/python/ || exit -1
-        nosetests3 tests/python/ || exit -1
+        nosetests tests/python/unittest/ || exit -1
+        nosetests3 tests/python/unittest/ || exit -1
     fi
     exit 0
 fi