About printing and suppressing output

[germa89]

In PyMAPDL there are several ways to suppress the command output given by PyMAPDL.

• Using mute=True. This uses the gRPC option mute. This is implemented in the gRPC API, meaning that PyMAPDL won't receive under any circumstance any output from MAPDL. The command is executed and no output is transferred to the PyMAPDL client.
• Using /NOPR. This is an MAPDL command which basically suppress all the console/terminal output. However, MAPDL will still transfer a string, just empty (''). The /NOPR can be deactivated using /GOPR. The command /NOPR is by default ignored. You need to use mapdl._run("/NOPR") to run it.

This was discovered when working pymapdl-examples repository, where accidentally a /NOPR command was issued.