[Developers] OpenMPI: The role of "-master"
Hans J. Skaug
Hans.Skaug at math.uib.no
Thu Jan 12 00:58:55 PST 2012
Dave or Derek,
I am compiling "para.tpl" which is a test program Kasper, Anders and I are using.
Can you confirm my understanding of how the parallelisation apprpach works,
in particular the role of the command line argument "-master" given to "para".
Is the following right:
- A program compiled with Derek's trunk can be run both using mpi and in ordinary
mode. It is "-master" that determines which mode.
- What does "-master" do from the user perspective? How many
slaves are chosen, is it possible to manually determine the number of slaves?
- ADMB uses dynamic linking so the environment variable "LD_LIBRARY_PATH"
plays no role in running the .exe?
More information about the Developers