diff --git a/src/config.py b/src/config.py
index 02770b225738c7a70ef5751eeada711048c0d3a5..b1a78624167f6fd67f626648b006c46ccfb6aa0d 100755
--- a/src/config.py
+++ b/src/config.py
@@ -47,6 +47,8 @@ CONFIG = {
     # use mpi parallelization
     # If use_mpi4py_futures=False start with:
     # mpiexec -n 3 python PyGMA.py
+    # or use threads if not specified via slurm
+    # mpiexec -n 3 --use-hwthread-cpus python PyGMA.py
     'use_mpi': True,
     
     # use mpi4py.futures