HowTo: Submitting MD Nastran Jobs to SGE
February 12, 2009 Leave a comment
Dale Layfield blogs part II of his entry: How to Submit “MD Nastran” DMP (Distributed Memory Parallel) jobs with SGE):
First, some background. MD Nastran offers the ability to run certain solution sequences in parallel using the Message Passing Interface (MPI), an industry-wide standard library for C and Fortran message-passing programs. For the Solaris x86 version of MD Nastran Sun HPC ClusterTools (based on Open MPI) is used for the MPI.
There are 2 basic requirements for submitting MD Nastran (DMP) jobs:
(1) You must specify the number of parallel processes you want (MD Nastran command line keyword "dmp=n"),
(2) And, if you want to spread the parallel processes out to more than just the local machine you are submitting Nastran from then you must specify target "host" machine(s) using the MD Nastran command line keyword "hosts=" (e.g, hosts=node1,node2, …..). With these basic requirements in mind I show below how to use the SGE qsub command to control a Nastran DMP job submission, including the determination of the "host" machines to run these parallel jobs. I also show how to use MSC’s job resources estimation tool ("estimate") to automate the determination of the required (memory, disk, and license tokens)…