update (#26)

* updates (#1)

* add scalars

* change format

* change inferattr interface

* remove scalar

* remove warning

nnvm/example/src/operator.cc

@@ -21,14 +21,14 @@ using nnvm::array_view;
 
 // simply return the shape as same
 inline bool SameShape(const NodeAttrs& attrs,
-                      array_view<TShape*> ishape,
-                      array_view<TShape*> oshape) {
-  if (ishape.size() == 0 || ishape[0]->ndim() == 0) return false;
-  for (TShape* pshape : oshape) {
-    *pshape = *ishape[0];
+                      std::vector<TShape> *ishape,
+                      std::vector<TShape> *oshape) {
+  if (ishape->size() == 0 || (*ishape)[0].ndim() == 0) return false;
+  for (TShape& pshape : *oshape) {
+    pshape = (*ishape)[0];
   }
-  for (TShape* pshape : ishape) {
-    *pshape = *ishape[0];
+  for (TShape& pshape : *ishape) {
+    pshape = (*ishape)[0];
   }
   return true;
 }
@@ -51,13 +51,13 @@ NNVM_REGISTER_OP(reshape)
     })
 .attr<FInferShape>(
     "FInferShape", [] (const NodeAttrs& attrs,
-                       array_view<TShape*> ishape,
-                       array_view<TShape*> oshape) {
+                       std::vector<TShape> *ishape,
+                       std::vector<TShape> *oshape) {
       // get parsed attribute
       const TShape& target = nnvm::get<TShape>(attrs.parsed);
-      *oshape[0] = target;
-      if (ishape[0]->ndim() == 0) return false;
-      CHECK_EQ(ishape[0]->Size(), target.Size())
+      (*oshape)[0] = target;
+      if ((*ishape)[0].ndim() == 0) return false;
+      CHECK_EQ((*ishape)[0].Size(), target.Size())
           << "Reshape op: source target shape mismatch";
       return true;
     })
@@ -78,9 +78,9 @@ NNVM_REGISTER_OP(cast)
 .attr<FInferShape>("FInferShape", SameShape)
 .attr<FInferType>(
     "FInferType", [](const NodeAttrs& attrs,
-                     array_view<int*> itype,
-                     array_view<int*> otype) {
-      *otype[0] = nnvm::get<int>(attrs.parsed);
+                     std::vector<int> *itype,
+                     std::vector<int> *otype) {
+      (*otype)[0] = nnvm::get<int>(attrs.parsed);
       return true;
     });
 

nnvm/include/nnvm/op.h

@@ -6,6 +6,7 @@
 #ifndef NNVM_OP_H_
 #define NNVM_OP_H_
 
+#include <dmlc/parameter.h>
 #include <string>
 #include <vector>
 #include <utility>
@@ -22,6 +23,7 @@ struct NodeAttrs;
 template<typename ValueType>
 class OpMap;
 class OpRegistryEntry;
+using dmlc::ParamFieldInfo;
 
 /*! \brief constant to indicate it take any length of positional inputs */
 static const uint32_t kVarg = std::numeric_limits<uint32_t>::max();
@@ -80,6 +82,8 @@ class Op {
    *  This can be used to generate docstring automatically for the operator.
    */
   std::string description;
+  /* \brief description of inputs and keyword arguments*/
+  std::vector<ParamFieldInfo> arguments;
   /*!
    * \brief number of inputs to the operator,
    * -1 means it is variable length
@@ -150,6 +154,22 @@ class Op {
    */
   inline Op& describe(const std::string& descr);  // NOLINT(*)
   /*!
+   * \brief Add argument information to the function.
+   * \param name Name of the argument.
+   * \param type Type of the argument.
+   * \param description Description of the argument.
+   * \return reference to self.
+   */
+  inline Op& add_argument(const std::string &name,
+                          const std::string &type,
+                          const std::string &description);
+  /*!
+   * \brief Append list if arguments to the end.
+   * \param args Additional list of arguments.
+   * \return reference to self.
+   */
+  inline Op& add_arguments(const std::vector<ParamFieldInfo> &args);
+  /*!
    * \brief Set the num_inputs
    * \param n The number of inputs to be set.
    * \return reference to self.
@@ -340,6 +360,18 @@ inline Op& Op::describe(const std::string& descr) {  // NOLINT(*)
   return *this;
 }
 
+inline Op& Op::add_argument(const std::string &name,
+                            const std::string &type,
+                            const std::string &description) {
+  arguments.push_back({name, type, type, description});
+  return *this;
+}
+
+inline Op& Op::add_arguments(const std::vector<ParamFieldInfo> &args) {
+  this->arguments.insert(arguments.end(), args.begin(), args.end());
+  return *this;
+}
+
 inline Op& Op::set_num_inputs(uint32_t n) {  // NOLINT(*)
   this->num_inputs = n;
   return *this;

nnvm/include/nnvm/op_attr_types.h

@@ -57,8 +57,8 @@ using FMutateInputs = std::function<std::vector<uint32_t> (const NodeAttrs& attr
  */
 template<typename AttrType>
 using FInferNodeEntryAttr = std::function<bool (const NodeAttrs& attrs,
-                                                array_view<AttrType*> in_attrs,
-                                                array_view<AttrType*> out_attrs)>;
+                                                std::vector<AttrType> *in_attrs,
+                                                std::vector<AttrType> *out_attrs)>;
 /*!
  * \brief Shape inference function.
  *  Update the shapes given the input shape information.

nnvm/src/c_api/c_api_symbolic.cc

@@ -28,11 +28,26 @@ int NNSymbolGetAtomicSymbolInfo(AtomicSymbolCreator creator,
                                 const char ***arg_descriptions,
                                 const char **return_type) {
   const Op *op = static_cast<const Op *>(creator);
+  NNAPIThreadLocalEntry *ret = NNAPIThreadLocalStore::Get();
 
   API_BEGIN();
   *name = op->name.c_str();
   *description = op->description.c_str();
-  *num_doc_args = 0;
+  *num_doc_args = static_cast<nn_uint>(op->arguments.size());
+  if (return_type) *return_type = nullptr;
+  ret->ret_vec_charp.clear();
+  for (size_t i = 0; i < op->arguments.size(); ++i) {
+    ret->ret_vec_charp.push_back(op->arguments[i].name.c_str());
+  }
+  for (size_t i = 0; i < op->arguments.size(); ++i) {
+    ret->ret_vec_charp.push_back(op->arguments[i].type_info_str.c_str());
+  }
+  for (size_t i = 0; i < op->arguments.size(); ++i) {
+    ret->ret_vec_charp.push_back(op->arguments[i].description.c_str());
+  }
+  *arg_names = dmlc::BeginPtr(ret->ret_vec_charp);
+  *arg_type_infos = dmlc::BeginPtr(ret->ret_vec_charp) + op->arguments.size();
+  *arg_descriptions = dmlc::BeginPtr(ret->ret_vec_charp) + (op->arguments.size() * 2);
   API_END();
 }
 

nnvm/src/core/symbolic.cc

@@ -151,7 +151,10 @@ void Symbol::Print(std::ostream &os) const {
           }
           if (!node->attrs.dict.empty()) {
             os << "Attrs:\n";
-            for (auto &kv : node->attrs.dict) {
+            // make an ordered copy because unordered_map doesn't guarantee order.
+            std::map<std::string, std::string> sorted_dict(
+              node->attrs.dict.begin(), node->attrs.dict.end());
+            for (auto &kv : sorted_dict) {
               os << '\t' << kv.first << '=' << kv.second << '\n';
             }
           }

nnvm/src/pass/infer_shape_type.cc

@@ -47,44 +47,52 @@ Graph InferAttr(Graph &&ret,
   }
 
   // temp space for shape inference.
-  std::vector<AttrType*> ishape, oshape;
+  std::vector<AttrType> ishape, oshape;
   // number of completed nodes
   size_t num_unknown = 0;
   for (uint32_t nid = 0; nid < idx.num_nodes(); ++nid) {
     const auto& inode = idx[nid];
+    uint32_t num_inputs = inode.inputs.size();
+    uint32_t num_outputs = inode.source->num_outputs();
     if (inode.source->is_variable()) {
       if (shape_attr_key.length() != 0 && fis_none(rshape[idx.entry_id(nid, 0)])) {
         auto it = inode.source->attrs.dict.find(shape_attr_key);
         if (it != inode.source->attrs.dict.end()) {
-          CHECK_EQ(inode.source->num_outputs(), 1);
+          CHECK_EQ(num_outputs, 1);
           std::istringstream is(it->second);
           CHECK(is >> rshape[idx.entry_id(nid, 0)]) << "Invalid attribute";
         }
       }
       continue;
     }
-    ishape.resize(inode.inputs.size());
+    if (finfer_shape.count(inode.source->op)) {
+      ishape.resize(num_inputs, def_value);
       for (uint32_t i = 0; i < ishape.size(); ++i) {
-      ishape[i] = &rshape[idx.entry_id(inode.inputs[i])];
+        ishape[i] = rshape[idx.entry_id(inode.inputs[i])];
       }
-    oshape.resize(inode.source->num_outputs());
+      oshape.resize(num_outputs, def_value);
       for (uint32_t i = 0; i < oshape.size(); ++i) {
-      oshape[i] = &rshape[idx.entry_id(nid, i)];
+        oshape[i] = rshape[idx.entry_id(nid, i)];
       }
-    if (finfer_shape.count(inode.source->op)) {
       num_unknown +=
-          !(finfer_shape[inode.source->op](inode.source->attrs, ishape, oshape));
+          !(finfer_shape[inode.source->op](inode.source->attrs, &ishape, &oshape));
+      for (uint32_t i = 0; i < num_inputs; ++i) {
+        rshape[idx.entry_id(inode.inputs[i])] = ishape[i];
+      }
+      for (uint32_t i = 0; i < num_outputs; ++i) {
+        rshape[idx.entry_id(nid, i)] = oshape[i];
+      }
     } else if (is_backward.get(inode.source->op, false)) {
       // backward operator inference.
       CHECK_GE(inode.control_deps.size(), 1)
           << "BackwardOp need to have control_deps to its forward op";
       const auto& fnode = idx[inode.control_deps[0]];
-      CHECK_EQ(fnode.inputs.size(), inode.source->num_outputs())
+      CHECK_EQ(fnode.inputs.size(), num_outputs)
           << "BackwardOp need to correspond to the forward node";
       bool known = true;
       for (size_t i = 0; i < fnode.inputs.size(); ++i) {
-        *oshape[i] = rshape[idx.entry_id(fnode.inputs[i])];
-        if (fis_none(*oshape[i])) known = false;
+        rshape[idx.entry_id(nid, i)] = rshape[idx.entry_id(fnode.inputs[i])];
+        if (fis_none(rshape[idx.entry_id(nid, i)])) known = false;
       }
       num_unknown += !known;
     }

nnvm/tests/python/test_symbol.py

@@ -41,7 +41,6 @@ def test_copy():
     z = sym.Variable('z')
     y = sym.exp(sym.add(x, x, name='add', gpu=2),
                 name='exp', gpu=1, attr={"kk": "1"})
-
     assert y.__copy__().debug_str() == y.debug_str()
 
 if __name__ == "__main__":