Mpiexec -np 4 $ROSETTA3/bin/antibody_H3.cxx11threadmpiserialization.linuxgccrelease looks just like: Below is the executable I ran (I've also reproduced the error with. I'm encountering a read error with antibody_H3. Hello, please note I'm revising my posting with some major updates, apologies to the 9 viewers who have come here prior as this will read completely different.