calling vim with mpiexec says "Warning: Output is not to a terminal / Warning: Input is not from a terminal"

My question is a bit technical. For specific reason, I need to call vim after mpiexec. Example : mpiexec -n 1 vim mytext.txt But this gives the following warning message: Vim: Warning: Output is not to a terminal Vim: Warning: Input is not from a terminal And then, vim does not behave naturally, my input commands are not well interpreted in the editor, and things are not as if I had done simply: vim mytext.txt Any idea on how to redirect correctly input/output from/to my launching terminal in order to be able to use vim after mpiexec ? Actually, the final goal is to debug in parallel using gdb on a specific proc and to edit functions with vim editor from gdb. Example : mpiexec -s 1 myprog : gdb myprog So I am starting my program "myprog" on two processes, using gdb on the second one (which is proc 1), and redirecting stdin to proc 1 (thanks to -s 1 [see mpiexec -help]). But then, if I want to edit a function with vim editor in gdb, I will face the same problems : Vim: Warning: Output is not to a terminal Vim: Warning: Input is not from a terminal A quick solution would be to start an xterm window, but I want to avoid that approach: mpiexec myprog : xterm -e gdb myprog Thanks for your help. Here is my Linux distribution: NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/ " BUG_REPORT_URL="https://bugs.centos.org/ " CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7"