DataPlane Configuration changes (ornladios#4121)

* DataPlane Configuration changes

* Change name to include HAVE rather than BUILD

CMakeLists.txt

@@ -443,9 +443,21 @@ foreach(opt IN LISTS ADIOS2_CONFIG_OPTS)
   endif()
 endforeach()
 
-if (ADIOS2_HAVE_SST AND (ADIOS2_SST_HAVE_LIBFABRIC OR ADIOS2_SST_HAVE_UCX))
-message("    RDMA Transport for Staging: Available")
+set (HPCDataPlaneList "")
+if (ADIOS2_HAVE_SST)
+  if (ADIOS2_SST_HAVE_LIBFABRIC)
+     set (HPCDataPlaneList "${HPCDataPlaneList} fabric")
+  endif()
+  if (ADIOS2_SST_HAVE_UCX)
+     set (HPCDataPlaneList "${HPCDataPlaneList} UCX")
+  endif()
+  if (ADIOS2_SST_HAVE_MPI_DP)
+     set (HPCDataPlaneList "${HPCDataPlaneList} MPI")
+  endif()
+endif()
+if ({HPCDataPlaneList} STREQUAL  "")
+  message("    Possible RDMA DataPlanes for SST: <none>")
 else()
-message("    RDMA Transport for Staging: Unconfigured")
+  message("    Possible RDMA DataPlanes for SST: ${HPCDataPlaneList}")
 endif()
 

cmake/DetectOptions.cmake

@@ -460,13 +460,14 @@ if(ADIOS2_USE_SST AND NOT WIN32)
         "-DLINK_DIRECTORIES=${LIBFABRIC_LIBRARIES}")
     message(STATUS "Libfabric support for the HPE CXI provider: ${ADIOS2_SST_HAVE_CRAY_CXI}")
   endif()
-  if(ADIOS2_HAVE_MPI)
+  if(ADIOS2_HAVE_MPI AND NOT "${ADIOS2_SST_HAVE_MPI_DP}")
     set(CMAKE_REQUIRED_LIBRARIES "MPI::MPI_C;Threads::Threads")
     include(CheckCXXSourceRuns)
     check_cxx_source_runs([=[
         #include <chrono>
         #include <future>
         #include <mpi.h>
+	#include <thread>
         #include <stdlib.h>
 
         #if !defined(MPICH)
@@ -491,7 +492,11 @@ if(ADIOS2_USE_SST AND NOT WIN32)
     ADIOS2_HAVE_MPI_CLIENT_SERVER)
     unset(CMAKE_REQUIRED_LIBRARIES)
     if (ADIOS2_HAVE_MPI_CLIENT_SERVER)
-      set(ADIOS2_SST_HAVE_MPI TRUE)
+      set(ADIOS2_SST_HAVE_MPI_DP TRUE)
+    else()
+      if ("${ADIOS2_SST_EXPECT_MPI_DP}") 
+          message(FATAL_ERROR "Expected MPI to support Client-server connection model, but test failed.")
+      endif()
     endif()
   endif()
   # UCX

source/adios2/toolkit/sst/CMakeLists.txt

@@ -45,7 +45,7 @@ if(ADIOS2_HAVE_ZFP)
   target_link_libraries(sst PRIVATE zfp::zfp)
 endif()
 
-if(ADIOS2_SST_HAVE_MPI)
+if(ADIOS2_SST_BUILD_MPI_DP)
   target_sources(sst PRIVATE dp/mpi_dp.c)
   target_link_libraries(sst PRIVATE MPI::MPI_C)
 endif()