diff --git a/cfg/clifton/comp.cfg b/cfg/clifton/comp.cfg
index 9eb28702832a513011994e88c6d814cf72fe9316..907c8d24c602b47b61a3e44d49c385f3e9a8bce3 100644
--- a/cfg/clifton/comp.cfg
+++ b/cfg/clifton/comp.cfg
@@ -1,5 +1,5 @@
 self.pars['CMAKELIST'].val='clifton.cmake'
-self.pars['NB_TASKS'].val='12'
+self.pars['NB_TASKS'].val='6'
 self.pars['NB_THREADS'].val='1'
 self.pars['RUNMETHOD'].vals=['interactive','at','batch',]
 self.pars['RUNMETHOD'].val='batch'
diff --git a/cfg/clifton/launch.cfg b/cfg/clifton/launch.cfg
index 42954536ad82b897ed29039391532746f8193064..12256a89f06c5501b848f3489ea602aed964e83d 100644
--- a/cfg/clifton/launch.cfg
+++ b/cfg/clifton/launch.cfg
@@ -1,4 +1,4 @@
-self.pars['NB_THREADS'].val='12'
+self.pars['NB_THREADS'].val='6'
 self.pars['NB_TASKS'].val='1'
 self.pars['RUNMETHOD'].vals=['interactive','at','batch']
 self.pars['RUNMETHOD'].val='batch'