Merge pull request #2907 from xianyi/develop

Update from develop for 0.3.11

.github/workflows/dynamic_arch.yml

@@ -9,6 +9,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest, macos-latest]
+        fortran: [gfortran, flang]
         build: [cmake, make]
     steps:
       - name: Checkout repository
@@ -24,7 +25,7 @@ jobs:
           # Restore any ccache cache entry, if none for
           # ${{ runner.os }}-ccache-${{ github.sha }} exists
           restore-keys: |
-            ${{ runner.os }}-ccache
+            ${{ runner.os }}-ccache-
 
       - name: Print system information
         run: |
@@ -49,8 +50,8 @@ jobs:
           fi
           ccache -M 300M  # Limit the ccache size; Github's overall cache limit is 5GB
 
-      - name: Build
-        if: matrix.build == 'make'
+      - name: gfortran build
+        if: matrix.build == 'make' && matrix.fortran == 'gfortran'
         run: |
           if [ "$RUNNER_OS" == "Linux" ]; then
             export PATH="/usr/lib/ccache:${PATH}"
@@ -63,8 +64,29 @@ jobs:
 
           make -j$(nproc) DYNAMIC_ARCH=1 USE_OPENMP=0
 
-      - name: CMake build
-        if: matrix.build == 'cmake'
+      - name: flang build
+        if: matrix.build == 'make' && matrix.fortran == 'flang'
+        run: |
+          if [ "$RUNNER_OS" == "Linux" ]; then
+            export PATH="/usr/lib/ccache:${PATH}"
+          elif [ "$RUNNER_OS" == "macOS" ]; then
+            exit 0
+          else
+            echo "$RUNNER_OS not supported"
+            exit 1
+          fi
+
+          cd /usr/
+          sudo wget -nv https://github.com/flang-compiler/flang/releases/download/flang_20190329/flang-20190329-x86-70.tgz
+          sudo tar xf flang-20190329-x86-70.tgz
+          sudo rm flang-20190329-x86-70.tgz
+          cd -
+
+          make -j$(nproc) DYNAMIC_ARCH=1 USE_OPENMP=0 FC=flang
+
+
+      - name: CMake gfortran build
+        if: matrix.build == 'cmake' && matrix.fortran == 'gfortran'
         run: |
           if [ "$RUNNER_OS" == "Linux" ]; then
             export PATH="/usr/lib/ccache:${PATH}"

.travis.yml

@@ -43,6 +43,18 @@ matrix:
         - TARGET_BOX=IBMZ_LINUX
         - BTYPE="BINARY=64 USE_OPENMP=1"
 
+    - <<: *test-ubuntu
+      os: linux
+      dist: focal
+      arch: s390x
+      compiler: clang
+      before_script:
+        - COMMON_FLAGS="DYNAMIC_ARCH=1 TARGET=Z13 NUM_THREADS=32"
+      env:
+        # for matrix annotation only
+        - TARGET_BOX=IBMZ_LINUX
+        - BTYPE="BINARY=64 USE_OPENMP=0 CC=clang"
+
     - <<: *test-ubuntu
       env:
         - TARGET_BOX=LINUX64
@@ -75,6 +87,40 @@ matrix:
         - TARGET_BOX=LINUX32
         - BTYPE="BINARY=32"
 
+    - os: linux
+      arch: ppc64le
+      dist: bionic
+      compiler: gcc
+      before_script:
+        - sudo add-apt-repository 'ppa:ubuntu-toolchain-r/test' -y
+        - sudo apt-get update
+        - sudo apt-get install gcc-9 gfortran-9 -y
+      script:
+        - make QUIET_MAKE=1  BINARY=64 USE_OPENMP=1 CC=gcc-9 FC=gfortran-9
+        - make -C test $COMMON_FLAGS $BTYPE
+        - make -C ctest $COMMON_FLAGS $BTYPE
+        - make -C utest $COMMON_FLAGS $BTYPE 
+      env:
+        # for matrix annotation only
+        - TARGET_BOX=PPC64LE_LINUX_P9
+
+    - os: linux
+      arch: ppc64le
+      dist: bionic
+      compiler: gcc
+      before_script:
+        - sudo add-apt-repository 'ppa:ubuntu-toolchain-r/test' -y
+        - sudo apt-get update
+        - sudo apt-get install gcc-9 gfortran-9 -y
+      script:
+        - make QUIET_MAKE=1  BUILD_BFLOAT16=1 BINARY=64 USE_OPENMP=1 CC=gcc-9 FC=gfortran-9
+        - make -C test $COMMON_FLAGS $BTYPE
+        - make -C ctest $COMMON_FLAGS $BTYPE
+        - make -C utest $COMMON_FLAGS $BTYPE 
+      env:
+        # for matrix annotation only
+        - TARGET_BOX=PPC64LE_LINUX_P9
+
     - os: linux
       compiler: gcc
       addons:
@@ -175,6 +221,17 @@ matrix:
       env:
         - BTYPE="TARGET=NEHALEM BINARY=64 INTERFACE64=1 FC=gfortran-8"
 
+    - <<: *test-macos
+      osx_image: xcode12
+      before_script:
+        - COMMON_FLAGS="DYNAMIC_ARCH=1 NUM_THREADS=32"
+        - brew update
+        - brew install gcc@10 # for gfortran
+      script:
+        - travis_wait 45 make QUIET_MAKE=1 $COMMON_FLAGS $BTYPE
+      env:
+        - BTYPE="TARGET=NEHALEM BINARY=64 INTERFACE64=1 FC=gfortran-10"
+
     - <<: *test-macos
       osx_image: xcode10.0
       env:
@@ -193,6 +250,21 @@ matrix:
         - CC="/Applications/Xcode-10.1.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang"
         - CFLAGS="-O2 -mno-thumb -Wno-macro-redefined -isysroot /Applications/Xcode-10.1.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS12.1.sdk -arch armv7 -miphoneos-version-min=5.1"
         - BTYPE="TARGET=ARMV7 HOSTCC=clang NOFORTRAN=1"
+
+    - &test-graviton2
+      os: linux
+      arch: arm64-graviton2
+      dist: focal
+      group: edge
+      virt: lxd
+      compiler: gcc
+      addons:
+        apt:
+          packages:
+            - gfortran
+      script:
+        - travis_wait 45 make && make lapack-test
+
 # whitelist
 branches:
   only:

CMakeLists.txt

@@ -6,8 +6,7 @@ cmake_minimum_required(VERSION 2.8.5)
 project(OpenBLAS C ASM)
 set(OpenBLAS_MAJOR_VERSION 0)
 set(OpenBLAS_MINOR_VERSION 3)
-set(OpenBLAS_PATCH_VERSION 10)
-
+set(OpenBLAS_PATCH_VERSION 11)
 set(OpenBLAS_VERSION "${OpenBLAS_MAJOR_VERSION}.${OpenBLAS_MINOR_VERSION}.${OpenBLAS_PATCH_VERSION}")
 
 # Adhere to GNU filesystem layout conventions
@@ -30,6 +29,8 @@ option(NO_AFFINITY "Disable support for CPU affinity masks to avoid binding proc
 else()
 set(NO_AFFINITY 1)
 endif()
+option(CPP_THREAD_SAFETY_TEST "Run a massively parallel DGEMM test to confirm thread safety of the library (requires OpenMP and about 1.3GB of RAM)" OFF)
+option(CPP_THREAD_SAFETY_GEMV "Run a massively parallel DGEMV test to confirm thread safety of the library (requires OpenMP)" OFF)
 
 # Add a prefix or suffix to all exported symbol names in the shared library.
 # Avoids conflicts with other BLAS libraries, especially when using
@@ -88,13 +89,13 @@ if (NOT NO_LAPACK)
   list(APPEND SUBDIRS lapack)
 endif ()
 
-if (NOT DEFINED BUILD_HALF)
- set (BUILD_HALF false)
+if (NOT DEFINED BUILD_BFLOAT16)
+ set (BUILD_BFLOAT16 false)
 endif ()
 # set which float types we want to build for
 if (NOT DEFINED BUILD_SINGLE AND NOT DEFINED BUILD_DOUBLE AND NOT DEFINED BUILD_COMPLEX AND NOT DEFINED BUILD_COMPLEX16)
   # if none are defined, build for all
-#  set(BUILD_HALF true)
+#  set(BUILD_BFLOAT16 true)
   set(BUILD_SINGLE true)
   set(BUILD_DOUBLE true)
   set(BUILD_COMPLEX true)
@@ -126,9 +127,9 @@ if (BUILD_COMPLEX16)
   list(APPEND FLOAT_TYPES "ZCOMPLEX") # defines COMPLEX and DOUBLE
 endif ()
 
-if (BUILD_HALF)
+if (BUILD_BFLOAT16)
   message(STATUS "Building Half Precision")
-  list(APPEND FLOAT_TYPES "HALF") # defines nothing
+  list(APPEND FLOAT_TYPES "BFLOAT16") # defines nothing
 endif ()
 
 if (NOT DEFINED CORE OR "${CORE}" STREQUAL "UNKNOWN")
@@ -234,6 +235,10 @@ if (NOT MSVC AND NOT NOFORTRAN)
   if(NOT NO_CBLAS)
     add_subdirectory(ctest)
   endif()
+  add_subdirectory(lapack-netlib/TESTING)
+	  if (CPP_THREAD_SAFETY_TEST OR CPP_THREAD_SAFETY_GEMV)
+	  	add_subdirectory(cpp_thread_test)
+    	  endif()
 endif()
 
 set_target_properties(${OpenBLAS_LIBNAME} PROPERTIES
@@ -249,7 +254,7 @@ if (BUILD_SHARED_LIBS AND BUILD_RELAPACK)
   endif()
 endif()
 
-if (BUILD_SHARED_LIBS AND NOT ${SYMBOLPREFIX}${SYMBOLSUFIX} STREQUAL "")
+if (BUILD_SHARED_LIBS AND NOT ${SYMBOLPREFIX}${SYMBOLSUFFIX} STREQUAL "")
 if (NOT DEFINED ARCH)
   set(ARCH_IN "x86_64")
 else()
@@ -358,10 +363,21 @@ endif()
 
 if(NOT NO_CBLAS)
 	message (STATUS "Generating cblas.h in ${CMAKE_INSTALL_INCLUDEDIR}")
-
 	set(CBLAS_H ${CMAKE_BINARY_DIR}/generated/cblas.h)
 	file(READ ${CMAKE_CURRENT_SOURCE_DIR}/cblas.h CBLAS_H_CONTENTS)
 	string(REPLACE "common" "openblas_config" CBLAS_H_CONTENTS_NEW "${CBLAS_H_CONTENTS}")
+	if (NOT ${SYMBOLPREFIX} STREQUAL "")
+	string(REPLACE " cblas" " ${SYMBOLPREFIX}cblas" CBLAS_H_CONTENTS	"${CBLAS_H_CONTENTS_NEW}")
+	string(REPLACE " openblas" " ${SYMBOLPREFIX}openblas" CBLAS_H_CONTENTS_NEW	"${CBLAS_H_CONTENTS}")
+	string (REPLACE " ${SYMBOLPREFIX}openblas_complex" " openblas_complex" CBLAS_H_CONTENTS	"${CBLAS_H_CONTENTS_NEW}")
+	string(REPLACE " goto" " ${SYMBOLPREFIX}goto" CBLAS_H_CONTENTS_NEW "${CBLAS_H_CONTENTS}")
+	endif()
+	if (NOT ${SYMBOLSUFFIX} STREQUAL "")
+	string(REGEX REPLACE "(cblas[^ (]*)" "\\1${SYMBOLSUFFIX}" CBLAS_H_CONTENTS	"${CBLAS_H_CONTENTS_NEW}")
+	string(REGEX REPLACE "(openblas[^ (]*)" "\\1${SYMBOLSUFFIX}" CBLAS_H_CONTENTS_NEW "${CBLAS_H_CONTENTS}")
+	string(REGEX REPLACE "(openblas_complex[^ ]*)${SYMBOLSUFFIX}" "\\1" CBLAS_H_CONTENTS	"${CBLAS_H_CONTENTS_NEW}")
+	string(REGEX REPLACE "(goto[^ (]*)" "\\1${SYMBOLSUFFIX}" CBLAS_H_CONTENTS_NEW	"${CBLAS_H_CONTENTS}")
+	endif()
 	file(WRITE ${CBLAS_H} "${CBLAS_H_CONTENTS_NEW}")
 	install (FILES ${CBLAS_H} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
 endif()
@@ -378,11 +394,9 @@ if(NOT NO_LAPACKE)
 	install (FILES ${CMAKE_BINARY_DIR}/lapacke_mangling.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/openblas${SUFFIX64})
 endif()
 
-include(FindPkgConfig QUIET)
-if(PKG_CONFIG_FOUND)
-	configure_file(${PROJECT_SOURCE_DIR}/cmake/openblas.pc.in ${PROJECT_BINARY_DIR}/openblas${SUFFIX64}.pc @ONLY)
-	install (FILES ${PROJECT_BINARY_DIR}/openblas${SUFFIX64}.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig/)
-endif()
+# Install pkg-config files
+configure_file(${PROJECT_SOURCE_DIR}/cmake/openblas.pc.in ${PROJECT_BINARY_DIR}/openblas${SUFFIX64}.pc @ONLY)
+install (FILES ${PROJECT_BINARY_DIR}/openblas${SUFFIX64}.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig/)
 
 
 # GNUInstallDirs "DATADIR" wrong here; CMake search path wants "share".

CONTRIBUTORS.md

@@ -187,6 +187,7 @@ In chronological order:
 * Marius Hillenbrand <https://github.com/mhillenibm>
   * [2020-05-12] Revise dynamic architecture detection for IBM z
   * [2020-05-12] Add new sgemm and strmm kernel for IBM z14
+  * [2020-09-07] Fix builds with clang on IBM z, including dynamic architecture support
 
 * Danfeng Zhang <https://github.com/craft-zhang>
   * [2020-05-20] Improve performance of SGEMM and STRMM on Arm Cortex-A53

Changelog.txt

@@ -1,4 +1,76 @@
 OpenBLAS ChangeLog
+====================================================================
+Version 0.3.11
+ 17-Oct-2020
+
+ common:
+ 	* API change:
+	  the newly added BFLOAT16 functions were renamed to use the
+	  letter "B" instead of "H" to avoid potential confusion with
+	  the IEEE "half precision float" type, i.e. the 0.3.10
+	  SHGEMM is now SBGEMM and the corresponding build option
+	  was changed from "BUILD_HALF" to "BUILD_BFLOAT16".
+	* Reduced the default BLAS3_MEM_ALLOC_THRESHOLD (used as an upper
+	  limit for placing temporary arrays on the stack) to be compatible
+	  with a stack size of 1mb (as imposed by the JAVA runtime library) 
+	* Added mixed-precision dot function SBDOT and utility functions
+	  shstobf16, shdtobf16, sbf16tos and dbf16tod to convert between
+	  single or double precision float arrays and bfloat16 arrays
+	* Fixed prototypes of LAPACK_?ggsvp and LAPACK_?ggsvd functions
+	  in lapack.h
+	* Fixed underflow and rounding errors in LAPACK SLANV2 and DLANV2
+	  (causing miscalculations in e.g. SHSEQR/DHSEQR, LAPACK issue #263)
+	* Fixed workspace calculation in LAPACK ?GELQ (LAPACK issue #415)
+	* Fixed several bugs in the LAPACK testsuite
+	* Improved performance of TRMM and TRSM for certain problem sizes
+	* Fixed infinite recursions and workspace miscalculations in ReLAPACK
+	* CMAKE builds no longer require pkg-config for creating the .pc file
+	* Makefile builds no longer misread NO_CBLAS=0 or NO_LAPACK=0 as 
+	  enabling these options
+	* Fixed detection of gfortran when invoked through an mpi wrapper
+	* Improve thread reinitialization performance with OpenMP xafter a fork 
+	* Added support for building only the subset of the library required
+	  for a particular precision by specifying BUILD_SINGLE, BUILD_DOUBLE
+	* Optional function name prefixes and suffixes are now correctly
+	  reflected in the generated cblas.h
+	* Added CMAKE build support for the LAPACK and multithreading tests
+
+POWER:
+	* Added optimized support for POWER10
+	* Added support for compiling for POWER8 in 32bit mode
+	* Added support for compilation with LLVM/clang
+	* Added support for compilation with NVIDIA/PGI compilers
+	* Fixed building on big-endian POWER8
+	* Fixed miscompilation of ZDOTC by gcc10
+	* Fixed alignment errors in the POWER8 SAXPY kernel
+	* Improved CPU detection on AIX
+	* Supported building with older compilers on POWER9
+
+x86_64:
+	* Added support for Intel Cooperlake
+	* Added autodetection of AMD Renoir/Matisse/Zen3 cpus
+	* Added autodetection of Intel Comet Lake cpus
+	* Reimplemented ?sum, ?dot and daxpy using universal intrinsics
+	* Reset the fpu state before using the fpu on Windows as a workaround
+	  for a problem introduced in Windows 10 build 19041 (a.k.a. SDK 2004)
+	* Fixed potentially undefined behaviour in the dot and gemv_t kernels
+	* Fixed a potential segmentation fault in DYNAMIC_ARCH builds
+	* Fixed building for ZEN with PGI/NVIDIA and AMD AOCC compilers
+
+ARMV7:
+	* Fixed cpu detection on BSD-like systems
+
+ARMV8:
+	* Added preliminary support for Apple Vortex cpus
+	* Added support for the Cavium ThunderX3T110 cpu
+	* Fixed cpu detection on BSD-like systems
+	* Fixed compilation in -std=C18 mode
+
+
+IBM Z:
+	* Added support for compiling with the clang compiler
+	* Improved GEMM performance on Z14
+
 ====================================================================
 Version 0.3.10
  14-Jun-2020

Jenkinsfile

@@ -0,0 +1,9 @@
+node {
+        stage('Checkout') {
+            checkout
+        }
+
+        stage('Build') {
+            sh("make")
+        }
+}