[MacPorts] #68988: mpich runtime error

[MacPorts]

#68988: mpich runtime error
--------------------------+----------------------------------
 Reporter:  chaochinyang  |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.8.1
 Keywords:                |       Port:  mpich, mpich-default
--------------------------+----------------------------------
 I can install `mpich` normally on my M2 Ultra Mac Pro with Ventura 13.6.3
 (22G436)
 {{{
 sudo port install mpich
 }}}
 and compile a simple hello world from [https://mpitutorial.com/tutorials
 /mpi-hello-world/ MPI Tutorial].
 {{{
 #include <mpi.h>
 #include <stdio.h>

 int main(int argc, char** argv) {
     // Initialize the MPI environment
     MPI_Init(NULL, NULL);

     // Get the number of processes
     int world_size;
     MPI_Comm_size(MPI_COMM_WORLD, &world_size);

     // Get the rank of the process
     int world_rank;
     MPI_Comm_rank(MPI_COMM_WORLD, &world_rank);

     // Get the name of the processor
     char processor_name[MPI_MAX_PROCESSOR_NAME];
     int name_len;
     MPI_Get_processor_name(processor_name, &name_len);

     // Print off a hello world message
     printf("Hello world from processor %s, rank %d out of %d
 processors\n",
            processor_name, world_rank, world_size);

     // Finalize the MPI environment.
     MPI_Finalize();
 }
 }}}
 However, when I run the executable
 {{{
 mpiexec -n 2 ./a.out
 }}}
 I cannot even MPI_Init the run:
 {{{
 Fatal error in internal_Init: Other MPI error, error stack:
 internal_Init(66)..................: MPI_Init(argc=0x0, argv=0x0) failed
 MPII_Init_thread(234)..............:
 MPID_Init(67)......................:
 init_world(171)....................: channel initialization failed
 MPIDI_CH3_Init(84).................:
 MPID_nem_init(314).................:
 MPID_nem_tcp_init(175).............:
 MPID_nem_tcp_get_business_card(397):
 GetSockInterfaceAddr(370)..........: gethostbyname failed, UA-9RH32PX
 (errno 0)
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/68988>
MacPorts <https://www.macports.org/>
Ports system for macOS