Please go through this link : OpenPBS and Version 20.0 and this document https://www.altair.com/pdfs/pbsworks/PBS19.2.3_BigBook.pdf
Also, you can find out by trying out openPBS version 20.0 
Thank you.
Please go through this link : OpenPBS and Version 20.0 and this document https://www.altair.com/pdfs/pbsworks/PBS19.2.3_BigBook.pdf
Also, you can find out by trying out openPBS version 20.0 Thank you.