initial OpenMP smoketest

src/c/test/CMakeLists.txt

@@ -10,6 +10,7 @@ set(SMOKETESTS
 find_package(MPI REQUIRED)
 find_package(Threads REQUIRED)
 find_package(CUDA REQUIRED)
+find_package(OpenMP REQUIRED)
 include_directories(${MPI_INCLUDE_PATH})
 
 set(perfflow_deps "-L../runtime -lperfflow_runtime -lcrypto")
@@ -25,6 +26,11 @@ foreach(TEST ${SMOKETESTS})
     target_link_libraries(${TEST} ${perfflow_deps})
 endforeach()
 
+message(STATUS " [*] Adding test: smoketest_omp")
+add_executable(smoketest_omp smoketest_omp.cpp)
+set_source_files_properties(smoketest_omp.cpp COMPILE_FLAGS "-Xclang -load -Xclang ../weaver/weave/libWeavePass.so -fPIC")
+target_link_libraries(smoketest_omp ${perfflow_deps} ${OpenMP_CXX_FLAGS})
+
 message(STATUS " [*] Adding test: smoketest_cuda")
 set(CUDA_NVCC_FLAGS  "-ccbin ${CMAKE_CXX_COMPILER} -Xcompiler=-Xclang -Xcompiler=-load -Xcompiler=-Xclang -Xcompiler=../../../weaver/weave/libWeavePass.so")
 cuda_add_executable(smoketest_cuda smoketest_cuda_wrapper.cpp smoketest_cuda_kernel.cu)

src/c/test/smoketest_omp.cpp

@@ -0,0 +1,38 @@
+/************************************************************\
+ * Copyright 2021 Lawrence Livermore National Security, LLC
+ * (c.f. AUTHORS, NOTICE.LLNS, COPYING)
+ *
+ * This file is part of the Flux resource manager framework.
+ * For details, see https://github.com/flux-framework.
+ *
+ * SPDX-License-Identifier: LGPL-3.0
+\************************************************************/
+
+#include <omp.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#define N 3
+
+__attribute__((annotate("@critical_path(pointcut='around')")))
+void foo(int threadid)
+{
+    long tid;
+    tid = (long)threadid;
+    printf("This is worker_thread() %ld \n", tid);
+}
+
+int main()
+{
+    long id;
+    #pragma omp
+    {
+        printf("Nthreads %d\n", omp_get_num_threads());
+    }
+    #pragma omp parallel for
+    for (id = 0; id <= N; id++)
+    {
+        int thread_id = omp_get_thread_num();
+        foo(thread_id);
+    }
+}