Rework cmakery: (#136)

* Rework cmakery:
  * detect rocm/hip/rocshmem better, make sure that ROCM_PATH and
    ROCM_ROOT don't conflict and are taken by default
  * add /opt/rocm as a fallback when nothing else found
  * obtain hipcc in a sanitized way (ensure we use the same logic we
    use to later find_package hip)
  * factorize redundancies
  * export GPU_TARGETS as part of the cmake target for librocshmem,
    this helps with a clean error when an application tries to link
    with the wrong offload-target flag (rather than a cryptic link error)
  * phased out ROCSHMEM_HOME, in favor of rocshmem_ROOT (the cmake
    blessed way)

* Remove references to ROCSHMEM_HOME, we prefer ROCSHMEM_ROOT

* Pick CMAKE_PREFIX_PATH method for consistent finding hip/rocm

* Undo this pr using LANGUAGE HIP, maybe later

* Use only rocmcmakebuildtools as recommended from 6.4 onward

[ROCm/rocshmem commit: ee5363be7a]

projects/rocshmem/tests/functional_tests/CMakeLists.txt

@@ -22,21 +22,27 @@
 # IN THE SOFTWARE.
 ###############################################################################
 
-set(TESTS_NAME rocshmem_example_driver)
+cmake_minimum_required(VERSION 3.16.3 FATAL_ERROR)
+
+###############################################################################
+# PROJECT
+###############################################################################
+include(${CMAKE_SOURCE_DIR}/cmake/setup_project.cmake)
+project(rocshmem_functional_tests VERSION 1.0.0 LANGUAGES CXX)
 
 ###############################################################################
 # SOURCES
 ###############################################################################
-add_executable(${TESTS_NAME} "")
+add_executable(${PROJECT_NAME} "")
 
 target_include_directories(
-  ${TESTS_NAME}
+  ${PROJECT_NAME}
   PRIVATE
     ${CMAKE_CURRENT_SOURCE_DIR}
 )
 
 target_sources(
-  ${TESTS_NAME}
+  ${PROJECT_NAME}
   PRIVATE
     barrier_all_tester.cpp
     sync_tester.cpp
@@ -67,50 +73,19 @@ target_sources(
 ###############################################################################
 if (BUILD_TESTS_ONLY)
   find_package(MPI REQUIRED)
+  find_package(hip REQUIRED PATHS /opt/rocm)
+  find_package(rocshmem REQUIRED PATHS /opt/rocm)
 
   target_include_directories(
-    ${TESTS_NAME}
+    ${PROJECT_NAME}
     PRIVATE
       $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/..>
       $<BUILD_INTERFACE:${CMAKE_BINARY_DIR}>
-      $<BUILD_INTERFACE:${ROCSHMEM_HOME}/include>
-      $<BUILD_INTERFACE:${MPI_CXX_HEADER_DIR}>
-  )
-
-  foreach (target ${DEFAULT_GPUS})
-    list(APPEND offload_flags --offload-arch=${target})
-  endforeach()
-
-  target_compile_options(
-    ${TESTS_NAME}
-    PRIVATE
-      ${offload_flags}
-      -fgpu-rdc
-  )
-
-  target_link_libraries(
-    ${TESTS_NAME}
-    PRIVATE
-      ${MPI_mpi_LIBRARY}
-      ${MPI_mpicxx_LIBRARY}
-      ${offload_flags}
-      -L${ROCSHMEM_HOME}/lib
-      -lamdhip64
-      -lhsa-runtime64
-      -lrocshmem
-      -fgpu-rdc
-  )
-else()
-  target_include_directories(
-    ${TESTS_NAME}
-    PRIVATE
-      roc::rocshmem
-  )
-
-  target_link_libraries(
-    ${TESTS_NAME}
-    PRIVATE
-      roc::rocshmem
-      -fgpu-rdc
   )
 endif()
+
+target_link_libraries(
+  ${PROJECT_NAME}
+  PRIVATE
+    roc::rocshmem
+)