From ab0e7a3ddc6749d46b198a0a83eeda5dc084ea00 Mon Sep 17 00:00:00 2001
From: tqchen <tianqi.tchen@gmail.com>
Date: Wed, 30 Apr 2014 09:48:41 -0700
Subject: [PATCH] use omp parallel sortting

---
 booster/xgboost_data.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/booster/xgboost_data.h b/booster/xgboost_data.h
index c3a868ff1..c879c2d53 100644
--- a/booster/xgboost_data.h
+++ b/booster/xgboost_data.h
@@ -290,6 +290,7 @@ namespace xgboost{
                 }
                 // sort columns
                 unsigned ncol = static_cast<unsigned>(this->NumCol());
+                #pragma omp parallel for schedule(static)
                 for (unsigned i = 0; i < ncol; i++){
                     std::sort(&col_data_[col_ptr_[i]], &col_data_[col_ptr_[i + 1]], REntry::cmp_fvalue);
                 }