Squashed 'subtree/rabit/' changes from d4ec037..28ca7be

28ca7be add linear readme
ca4b20f add linear readme
1133628 add linear readme
6a11676 update docs
a607047 Update build.sh
2c1cfd8 complete yarn
4f28e32 change formater
2fbda81 fix stdin input
3258bcf checkin yarn master
67ebf81 allow setup from env variables
9b6bf57 fix hdfs
395d5c2 add make system
88ce767 refactor io, initial hdfs file access need test
19be870 chgs
a1bd3c6 Merge branch 'master' of ssh://github.com/tqchen/rabit
1a573f9 introduce input split
29476f1 fix timer issue

git-subtree-dir: subtree/rabit
git-subtree-split: 28ca7becbd

rabit-learn/make/common.mk

@@ -0,0 +1,39 @@
+# this is the common build script for rabit programs
+# you do not have to use it
+export LDFLAGS= -L../../lib -pthread -lm -lrt
+export CFLAGS = -Wall  -msse2  -Wno-unknown-pragmas -fPIC -I../../include  
+
+# setup opencv
+ifeq ($(USE_HDFS),1)
+	CFLAGS+= -DRABIT_USE_HDFS=1 -I$(HADOOP_HDFS_HOME)/include -I$(JAVA_HOME)/include
+	LDFLAGS+= -L$(HADOOP_HDFS_HOME)/lib/native -L$(LIBJVM) -lhdfs -ljvm
+else
+	CFLAGS+= -DRABIT_USE_HDFS=0
+endif
+
+.PHONY: clean all lib mpi
+
+all: $(BIN) $(MOCKBIN)
+
+mpi: $(MPIBIN)
+
+lib:
+	cd ../..;make lib/librabit.a lib/librabit_mock.a; cd -
+libmpi:
+	cd ../..;make lib/librabit_mpi.a;cd -
+
+
+$(BIN) : 
+	$(CXX) $(CFLAGS) -o $@ $(filter %.cpp %.o %.c %.cc,  $^) -lrabit $(LDFLAGS) 
+
+$(MOCKBIN) : 
+	$(CXX) $(CFLAGS) -o $@ $(filter %.cpp %.o %.c %.cc,  $^) -lrabit_mock $(LDFLAGS) 
+
+$(OBJ) : 
+	$(CXX) -c $(CFLAGS) -o $@ $(firstword $(filter %.cpp %.c %.cc, $^) )
+
+$(MPIBIN) : 
+	$(MPICXX) $(CFLAGS) -o $@ $(filter %.cpp %.o %.c %.cc %.a, $^)  $(LDFLAGS) -lrabit_mpi 
+
+clean:
+	$(RM) $(OBJ) $(BIN) $(MPIBIN) $(MOCKBIN) *~ ../src/*~

rabit-learn/make/config.mk

@@ -0,0 +1,21 @@
+#-----------------------------------------------------
+#  rabit-learn: the configuration compile script
+#
+#  This is the default configuration setup for rabit-learn
+#  If you want to change configuration, do the following steps:
+#
+#  - copy this file to the root of rabit-learn folder
+#  - modify the configuration you want
+#  - type make or make -j n for parallel build
+#----------------------------------------------------
+
+# choice of compiler
+export CC = gcc
+export CXX = g++
+export MPICXX = mpicxx
+
+# whether use HDFS support during compile
+USE_HDFS = 1
+
+# path to libjvm.so
+LIBJVM=$(JAVA_HOME)/jre/lib/amd64/server