diff --git a/compareECLFiles.cmake b/compareECLFiles.cmake
index 78fbeeab2..368b3ab8f 100644
--- a/compareECLFiles.cmake
+++ b/compareECLFiles.cmake
@@ -194,7 +194,7 @@ endfunction()
 #   - This test class compares the output from a parallel simulation
 #     to the output from the serial instance of the same model.
 function(add_test_compare_parallel_simulation)
-  set(oneValueArgs CASENAME FILENAME SIMULATOR ABS_TOL REL_TOL DIR MPI_PROCS)
+  set(oneValueArgs CASENAME FILENAME SIMULATOR ABS_TOL REL_TOL DIR POSTFIX MPI_PROCS)
   set(multiValueArgs TEST_ARGS)
   cmake_parse_arguments(PARAM "$" "${oneValueArgs}" "${multiValueArgs}" ${ARGN} )
 
@@ -202,6 +202,12 @@ function(add_test_compare_parallel_simulation)
     set(PARAM_DIR ${PARAM_CASENAME})
   endif()
 
+  if(NOT PARAM_POSTFIX)
+    set(PARAM_POSTFIX "")
+  else()
+    set(PARAM_POSTFIX +${PARAM_POSTFIX})
+  endif()
+
   if(PARAM_MPI_PROCS)
     set(MPI_PROCS ${PARAM_MPI_PROCS})
   else()
@@ -221,11 +227,11 @@ function(add_test_compare_parallel_simulation)
                   -n ${MPI_PROCS})
 
   # Add test that runs flow_mpi and outputs the results to file
-  opm_add_test(compareParallelSim_${PARAM_SIMULATOR}+${PARAM_FILENAME} NO_COMPILE
+  opm_add_test(compareParallelSim_${PARAM_SIMULATOR}+${PARAM_FILENAME}${PARAM_POSTFIX} NO_COMPILE
                EXE_NAME ${PARAM_SIMULATOR}
                DRIVER_ARGS ${DRIVER_ARGS}
                TEST_ARGS ${TEST_ARGS})
-  set_tests_properties(compareParallelSim_${PARAM_SIMULATOR}+${PARAM_FILENAME}
+  set_tests_properties(compareParallelSim_${PARAM_SIMULATOR}+${PARAM_FILENAME}${PARAM_POSTFIX}
                        PROPERTIES PROCESSORS ${MPI_PROCS})
 endfunction()
 
diff --git a/parallelTests.cmake b/parallelTests.cmake
index 899ae308b..b254e4c44 100644
--- a/parallelTests.cmake
+++ b/parallelTests.cmake
@@ -78,6 +78,15 @@ add_test_compare_parallel_simulation(CASENAME spe3
                                      REL_TOL ${coarse_rel_tol_parallel}
                                      TEST_ARGS --linear-solver-reduction=1e-7 --tolerance-cnv=5e-6 --tolerance-mb=1e-8 --tolerance-wells=1e-7)
 
+add_test_compare_parallel_simulation(CASENAME spe3_partition_method_3
+                                     FILENAME SPE3CASE1
+                                     POSTFIX partition_method_3
+                                     DIR spe3
+                                     SIMULATOR flow
+                                     ABS_TOL ${abs_tol_parallel}
+                                     REL_TOL ${coarse_rel_tol_parallel}
+                                     TEST_ARGS --linear-solver-reduction=1e-7 --tolerance-cnv=5e-6 --tolerance-mb=1e-8 --tolerance-wells=1e-7 --partition-method=3)
+
 add_test_compare_parallel_simulation(CASENAME spe1_solvent
                                      FILENAME SPE1CASE2_SOLVENT
                                      SIMULATOR flow