fix load bug

src/sync/sync.h

@@ -8,6 +8,7 @@
 #include <cstdio>
 #include <cstring>
 #include "../utils/utils.h"
+#include <string>
 
 namespace xgboost {
 /*! \brief syncrhonizer module that minimumly wraps interface of MPI */
@@ -23,6 +24,8 @@ enum ReduceOp {
 int GetRank(void);
 /*! \brief get total number of process */
 int GetWorldSize(void);
+/*! \brief get name of processor */
+std::string GetProcessorName(void);
 
 /*! 
  * \brief this is used to check if sync module is a true distributed implementation, or simply a dummpy

src/sync/sync_empty.cpp

@@ -21,6 +21,10 @@ int GetWorldSize(void) {
   return 1;
 }
 
+std::string GetProcessorName(void) {
+  return std::string("");
+}
+
 template<>
 void AllReduce<uint32_t>(uint32_t *sendrecvbuf, int count, ReduceOp op) {
 }

src/sync/sync_mpi.cpp

@@ -20,6 +20,14 @@ bool IsDistributed(void) {
   return true;
 }
 
+std::string GetProcessorName(void) {
+  int len;
+  char name[MPI_MAX_PROCESSOR_NAME];
+  MPI::Get_processor_name(name, len);
+  name[len] = '\0';
+  return std::string(name);
+}
+
 void Finalize(void) {
   MPI::Finalize();
 }