Check packages and features once

Also move libompv detection to its own cmake module.

CMakeLists.txt

@@ -96,6 +96,14 @@ if (NOT HAVE_CLOCK_GETTIME)
   endif()
 endif()
 
+# Check packages and features once
+find_package(Nanos6)
+find_package(Nodes)
+find_package(Nosv)
+find_package(Libompv)
+include(CheckPerfParanoid)
+include(CheckOmpSs2Compiler)
+
 add_subdirectory(include)
 add_subdirectory(src)
 

cmake/FindLibompv.cmake

@@ -0,0 +1,21 @@
+# Copyright (c) 2025 Barcelona Supercomputing Center (BSC)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+set(LIBOMPV_FLAG "-fopenmp=libompv")
+
+include(CheckCCompilerFlag)
+
+# Add the flag at compile and link time
+set(CMAKE_REQUIRED_LINK_OPTIONS "${LIBOMPV_FLAG}")
+check_c_compiler_flag("${LIBOMPV_FLAG}" LIBOMPV_FOUND)
+
+if(NOT LIBOMPV_FOUND)
+  message(STATUS "Compiler doesn't support -fopenmp=libompv")
+  return()
+endif()
+
+if(NOT TARGET Libompv)
+  add_library(Libompv INTERFACE)
+  target_compile_options(Libompv INTERFACE "${LIBOMPV_FLAG}")
+  target_link_options(Libompv INTERFACE "${LIBOMPV_FLAG}")
+endif()

test/bench/openmp/CMakeLists.txt

@@ -1,26 +1,20 @@
 # Copyright (c) 2025 Barcelona Supercomputing Center (BSC)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-check_c_compiler_flag("-fopenmp=libompv" OPENMPV_COMPILER_FOUND)
+if(NOT LIBOMPV_FOUND)
-check_linker_flag(C "-fopenmp=libompv" OPENMPV_LINKER_FOUND)
-cmake_path(GET CMAKE_C_COMPILER PARENT_PATH CMAKE_C_COMPILER_PATH)
-
-if(NOT OPENMPV_COMPILER_FOUND OR NOT OPENMPV_LINKER_FOUND)
   if(ENABLE_ALL_TESTS)
-    message(FATAL_ERROR "Compiler doesn't support -fopenmp=libompv flag, cannot enable OpenMP-V RT tests")
+    message(FATAL_ERROR "Compiler doesn't support -fopenmp=libompv flag, cannot enable libompv bench tests")
   else()
-    message(STATUS "Compiler doesn't support -fopenmp=libompv flag, disabling OpenMP-V RT tests")
+    message(STATUS "Compiler doesn't support -fopenmp=libompv flag, disabling libompv bench tests")
   endif()
   return()
 endif()
 
-find_package(Nosv)
-
 if(NOT NOSV_FOUND)
   if(ENABLE_ALL_TESTS)
-    message(FATAL_ERROR "nOS-V not found, cannot enable OpenMP-V RT tests")
+    message(FATAL_ERROR "nOS-V not found, cannot enable libompv bench tests")
   else()
-    message(STATUS "nOS-V not found, disabling OpenMP-V RT tests")
+    message(STATUS "nOS-V not found, disabling libompv bench tests")
   endif()
   return()
 endif()

test/rt/nanos6/CMakeLists.txt

@@ -1,9 +1,6 @@
-# Copyright (c) 2022-2024 Barcelona Supercomputing Center (BSC)
+# Copyright (c) 2022-2025 Barcelona Supercomputing Center (BSC)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-find_package(Nanos6)
-include(CheckOmpSs2Compiler)
-
 if(NOT OMPSS2_COMPILER_FOUND)
   if(ENABLE_ALL_TESTS)
     message(FATAL_ERROR "Compiler doesn't support -fompss-2 flag, cannot enable Nanos6 RT tests")

test/rt/nodes/CMakeLists.txt

@@ -1,7 +1,6 @@
 # Copyright (c) 2022-2025 Barcelona Supercomputing Center (BSC)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-find_package(Nodes)
 include(CheckOmpSs2Compiler)
 
 if(NOT OMPSS2_COMPILER_FOUND)
@@ -72,8 +71,6 @@ nodes_rt_test(../nanos6/several-tasks.c NAME several-tasks-breakdown-level-2 LEV
 nodes_rt_test(../nanos6/several-tasks.c NAME several-tasks-breakdown-level-3 LEVEL 3 SORT BREAKDOWN)
 nodes_rt_test(../nanos6/several-tasks.c NAME several-tasks-breakdown-level-4 LEVEL 4 SORT BREAKDOWN)
 
-
-include(CheckPerfParanoid)
 if (PERF_PARANOID_KERNEL)
   message(STATUS "Enabling perf paranoid tests for NODES")
   nodes_rt_test(fibonacci.c SORT LEVEL 3 DRIVER "fibonacci.driver.sh")

test/rt/nosv/CMakeLists.txt

@@ -1,8 +1,6 @@
 # Copyright (c) 2021-2025 Barcelona Supercomputing Center (BSC)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-find_package(Nosv)
-
 if(NOT NOSV_FOUND)
   if(ENABLE_ALL_TESTS)
     message(FATAL_ERROR "nOS-V not found, cannot enable nOS-V RT tests")
@@ -66,7 +64,6 @@ nosv_test(several-tasks.c SORT NAME several-tasks-breakdown-level-2 LEVEL 2 BREA
 nosv_test(several-tasks.c SORT NAME several-tasks-breakdown-level-3 LEVEL 3 BREAKDOWN)
 nosv_test(several-tasks.c SORT NAME several-tasks-breakdown-level-4 LEVEL 4 BREAKDOWN)
 
-include(CheckPerfParanoid)
 if (PERF_PARANOID_KERNEL)
   message(STATUS "Enabling perf paranoid tests for nOS-V")
   nosv_test(kernel.c NAME kernel-overflow DRIVER "kernel-overflow.driver.sh")

test/rt/openmp/CMakeLists.txt

@@ -1,36 +1,30 @@
 # Copyright (c) 2022-2025 Barcelona Supercomputing Center (BSC)
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-check_c_compiler_flag("-fopenmp=libompv" OPENMPV_COMPILER_FOUND)
+if(NOT LIBOMPV_FOUND)
-check_linker_flag(C "-fopenmp=libompv" OPENMPV_LINKER_FOUND)
-cmake_path(GET CMAKE_C_COMPILER PARENT_PATH CMAKE_C_COMPILER_PATH)
-
-if(NOT OPENMPV_COMPILER_FOUND OR NOT OPENMPV_LINKER_FOUND)
   if(ENABLE_ALL_TESTS)
-    message(FATAL_ERROR "Compiler doesn't support -fopenmp=libompv flag, cannot enable OpenMP-V RT tests")
+    message(FATAL_ERROR "Compiler doesn't support -fopenmp=libompv flag, cannot enable libompv RT tests")
   else()
-    message(STATUS "Compiler doesn't support -fopenmp=libompv flag, disabling OpenMP-V RT tests")
+    message(STATUS "Compiler doesn't support -fopenmp=libompv flag, disabling libompv RT tests")
   endif()
   return()
 endif()
 
-find_package(Nosv)
-
 if(NOT NOSV_FOUND)
   if(ENABLE_ALL_TESTS)
-    message(FATAL_ERROR "nOS-V not found, cannot enable OpenMP-V RT tests")
+    message(FATAL_ERROR "nOS-V not found, cannot enable libompv RT tests")
   else()
-    message(STATUS "nOS-V not found, disabling OpenMP-V RT tests")
+    message(STATUS "nOS-V not found, disabling libompv RT tests")
   endif()
   return()
 endif()
 
+message(STATUS "Enabling libompv RT tests")
+
 function(openmp_rt_test)
   ovni_test(${ARGN} SORT)
-  target_compile_options("${OVNI_TEST_NAME}" PUBLIC "-fopenmp=libompv"
+  target_compile_options("${OVNI_TEST_NAME}" PUBLIC "-no-pedantic")
-	  "-no-pedantic")
+  target_link_libraries("${OVNI_TEST_NAME}" PRIVATE "m" Libompv PkgConfig::NOSV)
-  target_link_options("${OVNI_TEST_NAME}" PUBLIC "-fopenmp=libompv")
-  target_link_libraries("${OVNI_TEST_NAME}" PRIVATE "m" PkgConfig::NOSV)
   set_property(TEST "${OVNI_TEST_NAME}" APPEND PROPERTY
     ENVIRONMENT "OMP_OVNI=1")
   set_property(TEST "${OVNI_TEST_NAME}" APPEND PROPERTY