Does `sudo apt install gfortran mpich` support Apple M1 chip?

[CRquantum]

Thank you so much @wiremoons !

@wiremoons

Hopefully someone else can help with your question about mpi running correctly

I can confirm that the mpi works on M1 chip.

It is just seems that my code when using -O2, -O3, -Ofast the M1 chip compile file. But when it run is give a segment 11 error. (it has nothing to do with mpi)

Does sometimes -O2, -O3, -Ofast flags cause segment 11 error on Mac M1 chip?

Dear all, I have a code, -O0, -O2, -O3, -Ofast works fine on Ubuntu and windows. However, the same code, on M1 chip using gfortran 11.2.0, -O0 works, however with -O2, -O3, -Ofast flags it can compile and build fine, but when executing, it will soon have a segment 11 error. Since I do not have M1 chip to test myself. I just wanted to see if anyone have similar issue? If so, what kind of issues in the code may cause -O2, -O3, -Ofast lead to segment 11 error for M1 chip? By the way, will the…

But it runs fine on the same version 11.2.0 gfortran on ubuntu and windows.
So I am not very sure if it is my code’s issue or some compatibility issue with gfortran and M1.