Add OSH process technology

.github/actions/setup-macos-toolchain/action.yml

@@ -11,5 +11,8 @@ runs:
       shell: bash
       run: |
         brew update
-        brew install ninja mpich llvm libomp openssl
+        brew install \
+          ninja open-mpi llvm libomp openssl \
+          autoconf automake libtool libfabric \
+          coreutils gnu-sed grep gawk pkgconf
         brew link libomp --overwrite --force

.github/workflows/codeql.yml

@@ -30,7 +30,7 @@ jobs:
       - name: Setup environment
         run: |
           sudo apt-get update
-          sudo apt-get install -y gcc-15 g++-15 ninja-build mpich libomp-dev valgrind
+          sudo apt-get install -y gcc-15 g++-15 ninja-build openmpi-bin libopenmpi-dev libomp-dev valgrind
           python3 -m pip install -r requirements.txt
       - name: ccache
         uses: hendrikmuhs/ccache-action@v1.2

.github/workflows/mac.yml

@@ -63,8 +63,8 @@ jobs:
         with:
           path: install
           name: macos-clang-install
-      - name: Run func tests (MPI)
-        run: scripts/run_tests.py --running-type="processes" --counts 1 2 3 4
+      - name: Run func tests (MPI/OSH)
+        run: scripts/run_tests.py --running-type="processes" --counts 1 2 3 4 --additional-mpi-args="--oversubscribe"
         env:
           PPC_NUM_THREADS: 1
           PPC_TASK_MAX_TIME: 30

.github/workflows/perf.yml

@@ -19,6 +19,8 @@ jobs:
       - uses: actions/checkout@v6
       - name: Setup environment
         run: |
+          apt-get update
+          apt-get install -y --no-install-recommends openmpi-bin libopenmpi-dev
           python3 -m pip install -r requirements.txt --break-system-packages --ignore-installed
       - name: Download installed package
         uses: ./.github/actions/download-install

.github/workflows/static-analysis-pr.yml

@@ -66,6 +66,12 @@ jobs:
           create-symlink: true
           max-size: 1G
 
+      - name: Install Open MPI/OSH dependencies
+        run: >
+          apt-get update &&
+          apt-get install -y --no-install-recommends
+          openmpi-bin libopenmpi-dev
+
       - name: CMake configure
         run: >
           cmake -S . -B build -G Ninja
@@ -117,6 +123,12 @@ jobs:
           create-symlink: true
           max-size: 1G
 
+      - name: Install Open MPI/OSH dependencies
+        run: >
+          apt-get update &&
+          apt-get install -y --no-install-recommends
+          openmpi-bin libopenmpi-dev
+
       - name: CMake configure
         run: >
           cmake -S . -B build -G Ninja

.github/workflows/ubuntu.yml

@@ -35,6 +35,11 @@ jobs:
           key: ${{ runner.os }}-gcc
           create-symlink: true
           max-size: 1G
+      - name: Install Open MPI/OSH dependencies
+        run: >
+          apt-get update &&
+          apt-get install -y --no-install-recommends
+          openmpi-bin libopenmpi-dev
       - name: CMake configure
         run: >
           cmake -S . -B build -G Ninja
@@ -86,7 +91,12 @@ jobs:
         with:
           path: install
           name: ubuntu-gcc-install-${{ matrix.os }}
-      - name: Run func tests (MPI)
+      - name: Install Open MPI/OSH dependencies
+        run: >
+          apt-get update &&
+          apt-get install -y --no-install-recommends
+          openmpi-bin libopenmpi-dev
+      - name: Run func tests (MPI/OSH)
         run: scripts/run_tests.py --running-type="processes" --counts 1 2 3 4 --additional-mpi-args="--oversubscribe"
         env:
           PPC_NUM_THREADS: 1
@@ -139,6 +149,11 @@ jobs:
           key: ${{ runner.os }}-clang
           create-symlink: true
           max-size: 1G
+      - name: Install Open MPI/OSH dependencies
+        run: >
+          apt-get update &&
+          apt-get install -y --no-install-recommends
+          openmpi-bin libopenmpi-dev
       - name: CMake configure
         run: >
           cmake -S . -B build -G Ninja
@@ -182,7 +197,12 @@ jobs:
         with:
           path: install
           name: ubuntu-clang-install-${{ matrix.os }}
-      - name: Run func tests (MPI)
+      - name: Install Open MPI/OSH dependencies
+        run: >
+          apt-get update &&
+          apt-get install -y --no-install-recommends
+          openmpi-bin libopenmpi-dev
+      - name: Run func tests (MPI/OSH)
         run: scripts/run_tests.py --running-type="processes" --counts 1 2 3 4 --additional-mpi-args="--oversubscribe"
         env:
           PPC_NUM_THREADS: 1
@@ -237,6 +257,11 @@ jobs:
           key: ${{ runner.os }}-clang
           create-symlink: true
           max-size: 1G
+      - name: Install Open MPI/OSH dependencies
+        run: >
+          apt-get update &&
+          apt-get install -y --no-install-recommends
+          openmpi-bin libopenmpi-dev
       - name: CMake configure
         run: >
           cmake -S . -B build -G Ninja
@@ -282,7 +307,12 @@ jobs:
         with:
           path: install
           name: ubuntu-clang-sanitizer-install-${{ matrix.os }}
-      - name: Run tests (MPI)
+      - name: Install Open MPI/OSH dependencies
+        run: >
+          apt-get update &&
+          apt-get install -y --no-install-recommends
+          openmpi-bin libopenmpi-dev
+      - name: Run tests (MPI/OSH)
         run: scripts/run_tests.py --running-type="processes" --counts 2 --additional-mpi-args="--oversubscribe"
         env:
           PPC_NUM_THREADS: 2
@@ -347,6 +377,11 @@ jobs:
           key: ${{ runner.os }}-gcc
           create-symlink: true
           max-size: 1G
+      - name: Install Open MPI/OSH dependencies
+        run: >
+          apt-get update &&
+          apt-get install -y --no-install-recommends
+          openmpi-bin libopenmpi-dev
       - name: CMake configure
         run: >
           cmake -S . -B build -G Ninja
@@ -360,7 +395,7 @@ jobs:
       - name: Install project
         run: |
           cmake --build build --target install -- --quiet
-      - name: Run tests (MPI)
+      - name: Run tests (MPI/OSH)
         run: scripts/run_tests.py --running-type="processes" --additional-mpi-args="--oversubscribe"
         env:
           PPC_NUM_PROC: 2

.gitmodules

@@ -16,3 +16,6 @@
 [submodule "3rdparty/benchmark"]
 	path = 3rdparty/benchmark
 	url = https://github.com/google/benchmark
+[submodule "3rdparty/SOS"]
+	path = 3rdparty/SOS
+	url = https://github.com/Sandia-OpenSHMEM/SOS

CMakeLists.txt

@@ -38,7 +38,18 @@ if(PPC_BUILD_COMPONENTS)
   # ################ Parallel programming technologies #################
 
   message(STATUS "PPC step: Setup parallel programming technologies")
-  foreach(dep mpi openmp onetbb)
+  set(PPC_PARALLEL_TECHNOLOGIES mpi openmp onetbb)
+  set(ppc_osh_supported OFF)
+  if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    set(ppc_osh_supported ON)
+    set(ppc_osh_backend "openmpi")
+    list(APPEND PPC_PARALLEL_TECHNOLOGIES osh)
+  elseif(APPLE)
+    set(ppc_osh_supported ON)
+    set(ppc_osh_backend "sos")
+    list(APPEND PPC_PARALLEL_TECHNOLOGIES osh)
+  endif()
+  foreach(dep ${PPC_PARALLEL_TECHNOLOGIES})
     include(cmake/${dep}.cmake)
   endforeach()
 

cmake/functions.cmake

@@ -16,6 +16,9 @@ function(add_tests test_flag exec_target subdir)
     # Gather all source files under tests/<subdir>
     file(GLOB_RECURSE src_files "${TEST_DIR}/${subdir}/*.cpp"
          "${TEST_DIR}/${subdir}/*.cxx" "${TEST_DIR}/${subdir}/*.cc")
+    if(NOT ppc_osh_supported)
+      list(FILTER src_files EXCLUDE REGEX "(/|\\\\)osh\\.(cpp|cxx|cc)$")
+    endif()
     target_sources(${exec_target} PRIVATE ${src_files})
     list(APPEND TEST_EXECUTABLES ${exec_target})
     set(TEST_EXECUTABLES
@@ -34,6 +37,10 @@ function(setup_implementation)
   cmake_parse_arguments(SETUP "" # no plain options
                         "NAME;PROJ_NAME;BASE_DIR" "TESTS" ${ARGN})
 
+  if(SETUP_NAME STREQUAL "osh" AND NOT ppc_osh_supported)
+    return()
+  endif()
+
   # skip if impl dir doesn't exist
   set(IMP_DIR "${SETUP_BASE_DIR}/${SETUP_NAME}")
   if(NOT EXISTS "${IMP_DIR}")

cmake/mpi.cmake

@@ -1,6 +1,20 @@
 include_guard()
 
-find_package(MPI REQUIRED COMPONENTS CXX)
+if(NOT CMAKE_SYSTEM_NAME STREQUAL "Windows")
+  find_program(ppc_openmpi_c_wrapper NAMES mpicc.openmpi mpicc)
+  find_program(ppc_openmpi_cxx_wrapper NAMES mpicxx.openmpi mpicxx
+                                             mpic++.openmpi mpic++)
+  if(ppc_openmpi_c_wrapper AND ppc_openmpi_cxx_wrapper)
+    set(MPI_C_COMPILER
+        "${ppc_openmpi_c_wrapper}"
+        CACHE FILEPATH "MPI C compiler wrapper" FORCE)
+    set(MPI_CXX_COMPILER
+        "${ppc_openmpi_cxx_wrapper}"
+        CACHE FILEPATH "MPI CXX compiler wrapper" FORCE)
+  endif()
+endif()
+
+find_package(MPI REQUIRED COMPONENTS C CXX)
 if(NOT MPI_FOUND)
   message(FATAL_ERROR "MPI NOT FOUND")
 endif()