From 5e0d52cb8cf452b8aaba9345d0e6abc68cba220d Mon Sep 17 00:00:00 2001
From: tqchen <tianqi.tchen@gmail.com>
Date: Thu, 8 May 2014 20:15:23 -0700
Subject: [PATCH] add python o3

---
 python/Makefile           | 2 +-
 python/xgboost_python.cpp | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/python/Makefile b/python/Makefile
index 0db0a1ed0..f21957a2e 100644
--- a/python/Makefile
+++ b/python/Makefile
@@ -1,6 +1,6 @@
 export CC  = gcc
 export CXX = g++
-export CFLAGS = -Wall -msse2  -Wno-unknown-pragmas -fopenmp
+export CFLAGS = -Wall -O3 -msse2  -Wno-unknown-pragmas -fopenmp
 
 # specify tensor path
 SLIB = libxgboostpy.so
diff --git a/python/xgboost_python.cpp b/python/xgboost_python.cpp
index ee80429f8..d5442c8c3 100644
--- a/python/xgboost_python.cpp
+++ b/python/xgboost_python.cpp
@@ -75,6 +75,7 @@ namespace xgboost{
             inline void CheckInit(void){
                 if(!init_col_){
                     this->data.InitData();
+                    init_col_ = true;
                 }
                 utils::Assert( this->data.NumRow() == this->info.labels.size(), "DMatrix: number of labels must match number of rows in matrix");
             }