Welcome to the Intel HPC forums!
It seems like your PBS script is fine but the "caused collective abort of all ranks" error is fairly generic. It mostly means your application failed. It would be great if you could provide your full PBS script, with your mpirun/mpiexec command line, etc. Also, any info on your cluster (e.g. OS version, using InfiniBand or Ethernet, MPI library version, math library version - MKL or something else, etc) would be helpful.
Looking forward to hearing back.