Problems running example programs
rsand at d.umn.edu
Wed Jun 13 11:46:03 PDT 2001
I am having many problems running the example programs and programs like
mpi_mandel can any of you give me a hand in figuring out what is up?
Here is some specific information:
I have done a number of test runs using example code
/usr/mpi-beowulf/cpi.c, and it appears that once mpi is initialized,
that application runs ok. Using up to 7 processors shows a nice decline
in the processing time for that application. However, the code appears
to hang in the mpi initialization process for when I request 8 (or
more) cpus. The boeostatus command shows 8 cpus fully devoted to
trying to do something, but they never seem to finish. The second
bit of bad news is that even for 2-7 processor runs, the initialization
is painfully slow (~ 1 minute).
mailto:rsand at d.umn.edu
University of Minnesota, Duluth
Information Technology Systems and Services
218-726-6122 fax 218-726-7674
"Walk behind me I may not lead, Walk in front of me I may not follow,
Walk beside me and we walk together" UTE Tribal proverb.
More information about the Beowulf