From 785d7e54d36a8cee2cbcbe9ba1d86e31f29477b3 Mon Sep 17 00:00:00 2001
From: Chen Qin <qinnchen@gmail.com>
Date: Fri, 15 Mar 2019 07:58:47 -0700
Subject: [PATCH] [mpi] add engine_mpi travis build (#83)

---
 .travis.yml              | 6 ++++++
 scripts/travis_script.sh | 5 +++++
 test/Makefile            | 2 +-
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/.travis.yml b/.travis.yml
index 85bf8f090..933513718 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,6 +8,7 @@ env:
     - TASK=lint LINT_LANG=python
     - TASK=doc
     - TASK=build
+    - TASK=mpi-build
     - TASK=test
 
 # dependent apt packages
@@ -24,6 +25,11 @@ addons:
       - python-numpy
       - gcc-4.8
       - g++-4.8
+      - openmpi-bin
+      - openmpi-common
+      - openssh-client
+      - openssh-server
+      - libopenmpi-dev
       
 before_install:
   - git clone https://github.com/dmlc/dmlc-core
diff --git a/scripts/travis_script.sh b/scripts/travis_script.sh
index 664582906..1321b19f1 100755
--- a/scripts/travis_script.sh
+++ b/scripts/travis_script.sh
@@ -14,6 +14,11 @@ if [ ${TASK} == "build" ]; then
     make all || exit -1
 fi
 
+if [ ${TASK} == "mpi-build" ]; then
+    cd test
+    make mpi && make speed_test.mpi || exit -1
+fi
+
 if [ ${TASK} == "test" ]; then
     cd test
     make all || exit -1
diff --git a/test/Makefile b/test/Makefile
index 4386c2e5e..28cf29bdf 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -52,7 +52,7 @@ $(OBJ) :
 	$(CXX) -c $(CFLAGS) -o $@ $(firstword $(filter %.cpp %.c %.cc, $^) )
 
 $(MPIBIN) :
-	$(MPICXX) $(CFLAGS) -o $@ $(filter %.cpp %.o %.c %.cc, $^) $(LDFLAGS) -lrabit_mpi
+	$(MPICXX) $(CFLAGS) -o $@ $(filter %.cpp %.o %.c %.cc, $^) ../lib/librabit_mpi.so $(LDFLAGS)
 
 clean:
 	$(RM) $(OBJ) $(BIN) $(MPIBIN) $(MPIOBJ) *~ ../src/*~