[size=medium] When the MPI program is compiled and compiled through, but the execution times are wrong

[color=red]HYDU_create_process (./utils/launch/launch.c:69): execvp error on file hello (No such file or directory)[/color]

is probably due to the fact that the absolute path is not used when executing the program.

simply execute the program using the absolute path, as follows:

$mpicc -o cpi cpi.c

$mpirun -np 4./cpi (add “./ “) [/size]