This way you are running mpiexec.hydra under valgrind. You want to run instead

mpiexec.hydra -n 1 valgrind --track-origins=yes --leak-check=full  --fullpath-after= ./trashy.exe

On Apr 9, 2021, at 12:11 PM, dazza simplythebest <sayosale@hotmail.com> wrote:

valgrind --track-origins=yes --leak-check=full     mpiexec.hydra -n 1 ./trashy.exe