Add external openblas

.travis.yml

@@ -25,9 +25,9 @@ addons:
     packages:
       - gcc-4.8
       - g++-4.8
+      - gfortran-4.8
       - git
       - build-essential
-      - libatlas-base-dev
       - python
       - python-pip
       - python2.7-dev

cmake/external/openblas.cmake

@@ -15,7 +15,6 @@
 INCLUDE(cblas)
 
 IF(NOT ${CBLAS_FOUND})
-    MESSAGE(FATAL_ERROR "Please install OpenBlas, MKL or ATLAS.")
     INCLUDE(ExternalProject)
 
     SET(CBLAS_SOURCES_DIR ${THIRD_PARTY_PATH}/openblas)
@@ -28,20 +27,39 @@ IF(NOT ${CBLAS_FOUND})
         SET(CBLAS_LIBRARIES "${CBLAS_INSTALL_DIR}/lib/libopenblas.a" CACHE FILEPATH "openblas library" FORCE)
     ENDIF(WIN32)
 
+    IF(CMAKE_COMPILER_IS_GNUCC)
+        ENABLE_LANGUAGE(Fortran)
+        LIST(APPEND CBLAS_LIBRARIES gfortran pthread)
+    ENDIF(CMAKE_COMPILER_IS_GNUCC)
+
+    IF(NOT CMAKE_Fortran_COMPILER)
+        MESSAGE(FATAL_ERROR "To build lapack in libopenblas, "
+                "you need to set gfortran compiler: cmake .. -DCMAKE_Fortran_COMPILER=...")
+    ENDIF(NOT CMAKE_Fortran_COMPILER)
+
     ExternalProject_Add(
         openblas
-        ${EXTERNAL_PROJECT_LOG_ARGS}
-        URL                 "https://github.com/xianyi/OpenBLAS/archive/v0.2.19.tar.gz"
+        GIT_REPOSITORY      https://github.com/xianyi/OpenBLAS.git
+        GIT_TAG             v0.2.19
         PREFIX              ${CBLAS_SOURCES_DIR}
         INSTALL_DIR         ${CBLAS_INSTALL_DIR}
         BUILD_IN_SOURCE     1
-        CONFIGURE_COMMAND   ""
-        BUILD_COMMAND       make CC=${CMAKE_C_COMPILER} FC=${CMAKE_Fortran_COMPILER}
-        INSTALL_COMMAND     make install PREFIX=<INSTALL_DIR>
+        BUILD_COMMAND       ${CMAKE_MAKE_PROGRAM} FC=${CMAKE_Fortran_COMPILER} CC=${CMAKE_C_COMPILER} HOSTCC=${CMAKE_C_COMPILER} NO_SHARED=1 libs netlib
+        INSTALL_COMMAND     ${CMAKE_MAKE_PROGRAM} install NO_SHARED=1 PREFIX=<INSTALL_DIR>
         UPDATE_COMMAND      ""
+        CONFIGURE_COMMAND   ""
+    )
+
+    ExternalProject_Add_Step(
+        openblas lapacke_install
+        COMMAND ${CMAKE_COMMAND} -E copy "${CBLAS_SOURCES_DIR}/src/openblas/lapack-netlib/LAPACKE/include/lapacke_mangling_with_flags.h" "${CBLAS_INSTALL_DIR}/include/lapacke_mangling.h"
+        COMMAND ${CMAKE_COMMAND} -E copy "${CBLAS_SOURCES_DIR}/src/openblas/lapack-netlib/LAPACKE/include/lapacke.h" "${CBLAS_INSTALL_DIR}/include/lapacke.h"
+        COMMAND ${CMAKE_COMMAND} -E copy "${CBLAS_SOURCES_DIR}/src/openblas/lapack-netlib/LAPACKE/include/lapacke_config.h" "${CBLAS_INSTALL_DIR}/include/lapacke_config.h"
+        COMMAND ${CMAKE_COMMAND} -E copy "${CBLAS_SOURCES_DIR}/src/openblas/lapack-netlib/LAPACKE/include/lapacke_utils.h" "${CBLAS_INSTALL_DIR}/include/lapacke_utils.h"
+        DEPENDEES install
     )
 
     LIST(APPEND external_project_dependencies openblas)
-ENDIF()
+ENDIF(NOT ${CBLAS_FOUND})
 
 INCLUDE_DIRECTORIES(${CBLAS_INC_DIR})

cmake/system.cmake

@@ -47,7 +47,7 @@ SET(EXTERNAL_PROJECT_LOG_ARGS
     LOG_DOWNLOAD    0     # Wrap download in script to log output
     LOG_UPDATE      1     # Wrap update in script to log output
     LOG_CONFIGURE   1     # Wrap configure in script to log output
-    LOG_BUILD       1     # Wrap build in script to log output
+    LOG_BUILD       0     # Wrap build in script to log output
     LOG_TEST        1     # Wrap test in script to log output
-    LOG_INSTALL     1     # Wrap install in script to log output
+    LOG_INSTALL     0     # Wrap install in script to log output
 )

doc/getstarted/build_and_install/build_from_source_en.md

@@ -64,7 +64,8 @@ As a simple example, consider the following:
 
 1. **BLAS Dependencies(optional)**
   
-    Paddle will find BLAS from system's default path. But you can specify MKL, OpenBLAS or ATLAS via `MKL_ROOT`, `OPENBLAS_ROOT` or `ATLAS_ROOT`.
+    CMake will search BLAS libraries from system. If not found, OpenBLAS will be downloaded, built and installed automatically.
+    To utilize preinstalled BLAS， you can simply specify MKL, OpenBLAS or ATLAS via `MKL_ROOT`, `OPENBLAS_ROOT` or `ATLAS_ROOT`.
 
     ```bash
     # specify MKL
@@ -99,7 +100,7 @@ As a simple example, consider the following:
     ```bash
     # necessary
     sudo apt-get update
-    sudo apt-get install -y g++ make cmake build-essential libatlas-base-dev python python-pip libpython-dev git
+    sudo apt-get install -y g++ make cmake build-essential python python-pip libpython-dev git
     sudo pip install wheel numpy
     sudo pip install 'protobuf>=3.0.0'
     ```

paddle/scripts/travis/before_install.osx.sh

 #!/bin/bash
 brew update
 brew tap homebrew/science
-brew install python
-sudo pip install --upgrade protobuf
-brew install swig openblas md5sha1sum protobuf
+brew install openblas swig md5sha1sum

paddle/scripts/travis/build_and_test.sh

@@ -6,7 +6,7 @@ if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
   export PYTHONPATH=/opt/python/2.7.12/lib/python2.7/site-packages
   export PYTHONHOME=/opt/python/2.7.12
   export PATH=/opt/python/2.7.12/bin:${PATH}
-  cmake .. -DON_TRAVIS=ON -DON_COVERALLS=ON -DCOVERALLS_UPLOAD=ON ${EXTRA_CMAKE_OPTS}
+  cmake .. -DCMAKE_Fortran_COMPILER=/usr/bin/gfortran-4.8 -DON_TRAVIS=ON -DON_COVERALLS=ON -DCOVERALLS_UPLOAD=ON ${EXTRA_CMAKE_OPTS}
   NRPOC=`nproc`
   make -j $NPROC
   make coveralls

paddle/scripts/travis/docs.sh

@@ -4,7 +4,7 @@
 source ./common.sh
 
 # Compile Documentation only.
-cmake .. -DCMAKE_BUILD_TYPE=Debug -DWITH_GPU=OFF -DWITH_DOC=ON ${EXTRA_CMAKE_OPTS}
+cmake .. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_Fortran_COMPILER=/usr/bin/gfortran-4.8 -DWITH_GPU=OFF -DWITH_DOC=ON ${EXTRA_CMAKE_OPTS}
 make paddle_docs paddle_docs_cn
 
 # check websites for broken links