home.md

@@ -346,7 +346,8 @@ Handy reference:
 Hello world from process 000 out of 001, processor name res-hpc-lo01.researchlumc.nl
 ```
 
-Here you can see that we ran the program only on 1 core of the cpu.
+Here you can see that we ran the program only on 1 core of the cpu. (which is the same as running: mpirun -np 1 ./hello) (np = number of processes to launch)
+
 To make use of the MPI capabilitues of the program, we have to run the program with the "mpirun" which comes with the loaded module mpi/openmpi/4.0.2/gcc-8.2.1
 
 - mpirun ./hello
@@ -369,7 +370,7 @@ Hello world from process 008 out of 016, processor name res-hpc-lo01.researchlum
 Hello world from process 009 out of 016, processor name res-hpc-lo01.researchlumc.nl 
 Hello world from process 014 out of 016, processor name res-hpc-lo01.researchlumc.nl
 ```
-Now the program is using all the cores of the local machine.
+Now the program is using all the cores of the local machine. (which is the same as: mpirun -np 16 ./hello)
 
 ## Workload manager: Slurm