I'm trying to use MPI with fortran on Linux 2.6.18-164.6.1.el5 x86_64
I compiled this trivial code with mpif90:
program simple
include 'mpif.h'
integer numtasks, rank, ierr, rc
rc=1
call MPI_INIT(ierr)
if (ierr .ne. 0) then
print *,'Error starting MPI program. Terminating.'
call MPI_ABORT(MPI_COMM_WORLD, rc, ierr)
end if
call MPI_COMM_RANK(MPI_COMM_WORLD, rank, ierr)
call MPI_COMM_SIZE(MPI_COMM_WORLD, numtasks, ierr)
print *, 'Number of tasks=',numtasks,' My rank=',rank
! ****** do some work ******
call MPI_FINALIZE(ierr)
end
I run it with mpirun.
When I use 2 cpus or less, all is fine.
When I try to specify more than 2 cpus I get this error:
u02n065:0.ipath_userinit: userinit command failed: Cannot allocate memory
u02n065:0.Driver initialization failure on /dev/ipath
where u02n065 is the node name.
Please advise
many thanks
anton
--
Anton Shterenlikht
Room 2.6, Queen's Building
Mech Eng Dept
Bristol University
University Walk, Bristol BS8 1TR, UK
Tel: +44 (0)117 331 5944
Fax: +44 (0)117 929 4423
