Segmentation fault for mpirun on SWAN-ONLY RUNS

Hi again,
I've finally managed to install `v3.8` which seems to compile without any issues. In fact, I've been able to compile all the tests located in the **Projects** folder - all the builds have been successful, which is a good indicator, I'd believe.

However, when trying to execute the actual `mpirun`, I'm receiving the following segmentation fault:

```
[bsc32359@login2 COAWST]$ mpirun ./coawstM Projects/Inlet_test/Swanonly/swan_inlet_test.in > a.out

Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:

Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:

Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:

Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:
#0 0x7f8a3367b3ff in ???
#1 0x5ae83b in ???
#2 0x5aede7 in ???
#3 0x5af63b in ???
#4 0x5b1130 in ???
#5 0x56f216 in ???
#6 0x403bca in ???
#7 0x403c22 in ???
#8 0x7f8a33667492 in ???
#9 0x4039dd in ???
#10 0xffffffffffffffff in ???
#0 0x7f657ed713ff in ???
#1 0x5ae83b in ???
#2 0x5aede7 in ???
#3 0x5af63b in ???
#4 0x5b1130 in ???
#5 0x56f216 in ???
#6 0x403bca in ???
#7 0x403c22 in ???
#8 0x7f657ed5d492 in ???
#9 0x4039dd in ???
#10 0xffffffffffffffff in ???
#0 0x7f99fc5953ff in ???
#1 0x5ae83b in ???
#2 0x5aede7 in ???
#3 0x5af63b in ???
#4 0x5b1130 in ???
#5 0x56f216 in ???
#6 0x403bca in ???
#7 0x403c22 in ???
#8 0x7f99fc581492 in ???
#9 0x4039dd in ???
#10 0xffffffffffffffff in ???
#0 0x7fcbd0f9f3ff in ???
#1 0x5ae83b in ???
#2 0x5aede7 in ???
#3 0x5af63b in ???
#4 0x5b1130 in ???
#5 0x56f216 in ???
#6 0x403bca in ???
#7 0x403c22 in ???
#8 0x7fcbd0f8b492 in ???
#9 0x4039dd in ???
#10 0xffffffffffffffff in ???
--------------------------------------------------------------------------
Primary job terminated normally, but 1 process returned
a non-zero exit code. Per user-direction, the job has been aborted.
--------------------------------------------------------------------------
--------------------------------------------------------------------------
mpirun noticed that process rank 1 with PID 3013593 on node login2 exited on signal 11 (Segmentation fault).
--------------------------------------------------------------------------
[bsc32359@login2 COAWST]$
```

No matter what Coawst project I'm trying to run, I keep receiving the same error. I've tried with a different number of nodes, but it changes nothing.
I do have made sure to load the necessary libraries and exports.

I'm also in contact with the system admins, but wanted to post this here in case it's a known issue.

Cheers, thank you