The attached is a more general test. Please note that these are very
sensitive to compilation options with ifort, and probably other
compilers as well. In many cases openmpi fails test 1 and perhaps some
of the others. Openmpi is not alone; the version of mvapich on my
cluster fails a simple "CNTRL
The following code reproduces the problem for mpif90/ifort
11.1/openmpi-1.4.1. With an empty test.input (touch test.input) some
not reproducible number of zombies processes are created.
include "mpif.h"
call MPI_INIT(ierr)
call MPI_COMM_RANK(MPI_COMM_WORLD, irank, ierr)
I managed to find time to reproduce the issue, although it is not very
reproducible in it's results and I suspect it may not be easy to
reproduce with a simple code plus I've never actually constructed a
mpi code so (I am cc'ing Michael Sternberg who compiled the
openmpi in case there are flags
On Jan 29, 2010, at 9:13 AM, Laurence Marks wrote:
> OK, but trivial codes don't always reproduce problems.
Yes, but if the problem is a file reading beyond the end, that should be fairly
isolated behavior.
> Is strace useful?
Sure. But let's check to see if the apps are actually dying or han
