Set dense data

Author: yoquinjo

src/c_api/c_api.cc

@@ -1027,6 +1027,7 @@ XGB_DLL int XGBoosterInplacePredict(BoosterHandle handle,
   API_BEGIN();
   CHECK_HANDLE();
   xgboost::bst_ulong out_dim;
+  std::shared_ptr<xgboost::data::DenseAdapter> x{new xgboost::data::DenseAdapter(data, num_rows, num_features)};
   //std::shared_ptr<DMatrix> p_m(dMatrixHandle);
   std::shared_ptr<DMatrix> p_m{nullptr};
   if (!dMatrixHandle) {
@@ -1042,15 +1043,14 @@ XGB_DLL int XGBoosterInplacePredict(BoosterHandle handle,
     }
   } else {
     p_m = *static_cast<std::shared_ptr<DMatrix> *>(dMatrixHandle);
-
     fprintf (stdout, "dmatrix handle is not null");
     if (!p_m) {
       fprintf (stderr, "p_m 2 is null");
       exit(1);
     }
   }
   fprintf (stdout, reinterpret_cast<const char *>(p_m.get()));
-  DMatrixProxy* stuff = dynamic_cast<data::DMatrixProxy *>(p_m.get());
+  // DMatrixProxy* stuff = dynamic_cast<data::DMatrixProxy *>(p_m.get());
   auto proxy = new std::shared_ptr<xgboost::DMatrix>(new xgboost::data::DMatrixProxy);
   if (!proxy) {
     fprintf (stderr, "proxy is null");
@@ -1062,6 +1062,7 @@ XGB_DLL int XGBoosterInplacePredict(BoosterHandle handle,
     }
   auto *learner = static_cast<xgboost::Learner *>(handle);
   auto iteration_end = GetIterationFromTreeLimit(ntree_limit, learner);
+  proxy->SetDenseData(data)
   InplacePredictImplCore(p_m, learner, (xgboost::PredictionType)0, missing, num_rows, num_features,
                          0, iteration_end, true, len, &out_dim, out_result);
 //  printf("XGBoosterInplacePredict len = %u, dim = %u\n", **len, out_dim);

src/data/proxy_dmatrix.cc

@@ -15,6 +15,14 @@ void DMatrixProxy::SetArrayData(char const *c_interface) {
   this->ctx_.gpu_id = Context::kCpuId;
 }
 
+void DMatrixProxy::SetDenseData(const float *data) {
+  std::shared_ptr<xgboost::data::DenseAdapter> adapter{new xgboost::data::DenseAdapter(data)};
+  this->batch_ = adapter;
+  this->Info().num_col_ = adapter->NumColumns();
+  this->Info().num_row_ = adapter->NumRows();
+  this->ctx_.gpu_id = Context::kCpuId;
+}
+
 void DMatrixProxy::SetCSRData(char const *c_indptr, char const *c_indices,
                               char const *c_values, bst_feature_t n_features, bool on_host) {
   CHECK(on_host) << "Not implemented on device.";

src/data/proxy_dmatrix.h

@@ -70,6 +70,7 @@ class DMatrixProxy : public DMatrix {
   }
 
   void SetArrayData(char const* c_interface);
+  void SetDenseData(const float *data);
   void SetCSRData(char const *c_indptr, char const *c_indices,
                   char const *c_values, bst_feature_t n_features,
                   bool on_host);