started integrating MPI functions from test file to ex4
integration done, compiling errors
compiling, not tested
some improvements, compiling, not running
error invalid rank
invalid rank error solved, deadlock situation
changed loop order
minor improvements, still segfault
minor improvements with borders, still segfault
no segfault, but deadlock
simplified code, still deadlck
glibc backtrace
MPI seems to be working, not tested