administrator@aelab319:~/santosh/MKL$ /usr/bin/mpirun -n 1 ./main
No protocol specified
--------------------------------------------------------------------------
WARNING: There is at least non-excluded one OpenFabrics device found,
but there are no active ports detected (or Open MPI was unable to use
them).  This is most certainly not what you wanted.  Check your
cables, subnet manager configuration, etc.  The openib BTL will be
ignored for this job.

  Local host: aelab319
--------------------------------------------------------------------------
 Program start
              total        used        free      shared  buff/cache   available
Mem:         772668        4995      381369           8      386303      762793

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

Backtrace for this error:
#0  0x7f1f4f0c4700 in ???
#1  0x7f1f4f0c38a5 in ???
#2  0x7f1f4eeb908f in ???
        at /build/glibc-SzIz7B/glibc-2.31/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
#3  0x7f1f4eb7932b in ???
#4  0x7f1f4f4a6d68 in ???
#5  0x7f1f4f4a5060 in ???
#6  0x7f1f4f495fe7 in ???
#7  0x7f1f4f4c4000 in ???
#8  0x562152b2b4a4 in ???
#9  0x562152b2c0e0 in ???
#10  0x7f1f4ee9a082 in __libc_start_main
        at ../csu/libc-start.c:308
#11  0x562152b2b20d in ???
#12  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 0 with PID 0 on node aelab319 exited on signal 11 (Segmentation fault).
--------------------------------------------------------------------------
administrator@aelab319:~/santosh/MKL$