Singhal–Kshemkalyani’s Differential Technique
{(1,1)} →{{process index(p1),values=1}}, sent this value to
When a process pi sends a message to a process pj , it piggybacks only those
entries of its vector clock that differ since the last message sent to .
Parallel Programming with MPI For Python - Research Computing in Earth Sciences
MPI Command
Run sample.py in localhost with 4 processors only
mpirun -np 4 python3 ./sample.py
copy sample.py to billy
scp ./sample.py 73985@billy:C:/Users/73985/
Run sample.py with 4 processors in localhost and 4 in billy
mpirun -np 8 --host localhost:4,billy:4 python3 ./sample.py
this one doesn’t work on my mac
But we can also create hosts file with specified slots of processors