Disable mpi process pinning in test suite

Author: RudolfWeeber

CMakeLists.txt

@@ -421,6 +421,15 @@ else()
   endfunction()
 endif()
 
+# mpiexec argument to disable pinning of processes to cores. Used in test suite
+# as several tests are run at the same time.
+if(NOT APPLE)
+  set(ESPRESSO_MPIEXEC_DONT_PIN --bind-to none)
+else()
+  # not supported on Apple
+  set(ESPRESSO_MPIEXEC_DONT_PIN "")
+endif()
+
 #
 # Boost
 #

testsuite/python/CMakeLists.txt

@@ -92,7 +92,8 @@ function(python_test)
     add_test(
       NAME ${TEST_NAME}
       COMMAND
-        ${MPIEXEC} ${ESPRESSO_MPIEXEC_OVERSUBSCRIBE} ${MPIEXEC_NUMPROC_FLAG}
+        ${MPIEXEC} ${ESPRESSO_MPIEXEC_DONT_PIN}
+        ${ESPRESSO_MPIEXEC_OVERSUBSCRIBE} ${MPIEXEC_NUMPROC_FLAG}
         ${TEST_NUM_PROC} ${MPIEXEC_PREFLAGS} ${ESPRESSO_MPIEXEC_TMPDIR}
         ${CMAKE_BINARY_DIR}/pypresso ${PYPRESSO_OPTIONS}
         ${TEST_FILE_CONFIGURED} ${TEST_ARGUMENTS} ${MPIEXEC_POSTFLAGS})