testing: drop mpiexec for now

CMakeLists.txt

@@ -42,23 +42,23 @@ option(IS_TESTING "Build for CTest" OFF)
 message(STATUS "IS_TESTING: ${IS_TESTING}")
 
 #tests
-function(test_func_impl TEST_NAME NUM_PROCS)
-  set(TEST_STR ${MPIEXEC_EXECUTABLE} ${MPIEXEC_NUMPROC_FLAG} ${NUM_PROCS} ${VALGRIND} ${ARGN})
+function(test_func_impl TEST_NAME)
+  set(TEST_STR ${VALGRIND} ${ARGN})
   # need to run as a cmake script to capture assert and other 'system failures'
   # https://cmake.org/cmake/help/latest/prop_test/WILL_FAIL.html#prop_test:WILL_FAIL
   add_test(NAME ${TEST_NAME} COMMAND ${CMAKE_COMMAND} -E env ${TEST_STR})
 endfunction(test_func_impl)
 
-function(test_func TEST_NAME NUM_PROCS)
-  test_func_impl(${TEST_NAME} ${NUM_PROCS} ${ARGN})
+function(test_func TEST_NAME)
+  test_func_impl(${TEST_NAME} ${ARGN})
   if(TEST ${TEST_NAME})
     set_property(TEST ${TEST_NAME} PROPERTY LABELS "base")
   endif()
 endfunction(test_func)
 
 # Unlike test_func, will_fail_test_func assumes the command for the test will fail
-function(will_fail_test_func TEST_NAME NUM_PROCS)
-  test_func_impl(${TEST_NAME} ${NUM_PROCS} ${ARGN})
+function(will_fail_test_func TEST_NAME)
+  test_func_impl(${TEST_NAME} ${ARGN})
   set_property(TEST ${TEST_NAME} PROPERTY WILL_FAIL TRUE)
   if(TEST ${TEST_NAME})
     set_property(TEST ${TEST_NAME} PROPERTY LABELS "base")
@@ -82,16 +82,16 @@ target_link_libraries(SerializationTests PRIVATE meshFields)
 add_executable(QRTests test/testQR.cpp)
 target_link_libraries(QRTests PRIVATE meshFields)
 
-test_func(MainTests 1 ./Main)
-test_func(KokkosTests 1 ./KokkosTests)
-test_func(CabanaTests 1 ./CabanaTests)
-test_func(SerializationTests 1 ./SerializationTests)
+test_func(MainTests ./Main)
+test_func(KokkosTests ./KokkosTests)
+test_func(CabanaTests ./CabanaTests)
+test_func(SerializationTests ./SerializationTests)
 if(Kokkos_ENABLE_CUDA) #haven't tested with HIP or SYCL
-  test_func(QRTestsCUDA 1 ./QRTests)
+  test_func(QRTestsCUDA ./QRTests)
 else()
   #with the serial backend the QR tests fail,
   #see https://github.com/kokkos/kokkos-kernels/issues/2328
-  will_fail_test_func(QRTestsSerial 1 ./QRTests)
+  will_fail_test_func(QRTestsSerial ./QRTests)
 endif()
 
 #Code Coverage set up -------------------------------------------------------