minor fix, add openmp

src/learner/evaluation-inl.hpp

@@ -123,7 +123,7 @@ struct EvalAMS : public IEvaluator {
     const double br = 10.0;
     unsigned thresindex = 0;
     double s_tp = 0.0, b_fp = 0.0, tams = 0.0;
-    for (unsigned i = 0; i < ndata-1 && i < ntop; ++i) {
+    for (unsigned i = 0; i < static_cast<unsigned>(ndata-1) && i < ntop; ++i) {
       const unsigned ridx = rec[i].second;
       const float wt = info.weights[ridx];
       if (info.labels[ridx] > 0.5f) {

src/learner/objective-inl.hpp

@@ -169,7 +169,7 @@ class SoftmaxMultiClassObj : public IObjFunction {
     std::vector<bst_gpair> &gpair = *out_gpair;
     gpair.resize(preds.size());
     const unsigned nstep = static_cast<unsigned>(info.labels.size() * nclass);
-    const unsigned ndata = static_cast<bst_omp_uint>(preds.size() / nclass);
+    const bst_omp_uint ndata = static_cast<bst_omp_uint>(preds.size() / nclass);
     #pragma omp parallel
     {
       std::vector<float> rec(nclass);

windows/xgboost/xgboost.vcxproj

@@ -99,6 +99,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
+      <OpenMPSupport>true</OpenMPSupport>
     </ClCompile>
     <Link>
       <GenerateDebugInformation>true</GenerateDebugInformation>