use new helper functions

9 jobs for gridder_mr in 16 minutes and 21 seconds (queued for 1 second)
Status Job ID Name Coverage
  Build Docker
passed #777427
build_docker_from_cache

00:08:21

 
  Test
passed #777429
test_mpi

00:04:11

passed #777428
test_serial

00:04:56

80.0%
 
  Demo Runs
passed #777434
run_bernoulli

00:00:26

passed #777435
run_curve_fitting

00:00:26

passed #777431
run_getting_started_1

00:00:31

passed #777432
run_getting_started_2

00:01:15

passed #777433
run_getting_started_3

00:03:02

passed #777430
run_ipynb

00:01:26