Just to answer my own question, after I explicitly specify the "--
mca btl tcp" parameter, the program works. So I will need to issue
command like this:
$ mpirun --mca btl tcp -np 2 tut01
oceanus:Hello world from 0
oceanus:Hello world from 1
Regards,
Eddie.
On 1/18/07, eddie168 <eddie168+ompi_u...@gmail.com> wrote:
Hi Ralph and Brian,
Thanks for the advice, I have checked the permission to /tmp
drwxrwxrwt 19 root root 4096 Jan 18 11:38 tmp
which I think there shouldn't be any problem to create files there,
so option (a) still not work for me.
I tried option (b) which set --tmpdir on command line and run as
normal user, it works for -np 1, however it gives the same error
for -np 2.
Option (c) also tested by setting "OMPI_MCA_tmpdir_base = /home2/
mpi_tut/tmp" in "~/.openmpi/mca-params.conf", however error still
occurred.
I included the debug output of what I ran (with IP masked), I
noticed that the optional tmp directory set in the beginning of the
process, however it changed back to "/tmp" after executing orted.
Could the error I got related to SSH setting?
Many thanks,
Eddie.
[eddie@oceanus:~/home2/mpi_tut]$ mpirun -d --tmpdir /home2/mpi_tut/
tmp -np 2 tut01
[oceanus:129119] [0,0,0] setting up session dir with
[oceanus:129119] tmpdir /home2/mpi_tut/tmp
[oceanus:129119] universe default-universe
[oceanus:129119] user eddie
[oceanus:129119] host oceanus
[oceanus:129119] jobid 0
[oceanus:129119] procid 0
[oceanus:129119] procdir: /home2/mpi_tut/tmp/openmpi-sessions-
eddie@oceanus_0/default-universe/0/0
[oceanus:129119] jobdir: /home2/mpi_tut/tmp/openmpi-sessions-
eddie@oceanus_0/default-universe/0
[oceanus:129119] unidir: /home2/mpi_tut/tmp/openmpi-sessions-
eddie@oceanus_0/default-universe
[oceanus:129119] top: openmpi-sessions-eddie@oceanus_0
[oceanus:129119] tmp: /home2/mpi_tut/tmp
[oceanus:129119] [0,0,0] contact_file /home2/mpi_tut/tmp/openmpi-
sessions-eddie@oceanus_0/default-universe/universe-setup.txt
[oceanus:129119] [0,0,0] wrote setup file
[oceanus:129119] pls:rsh: local csh: 0, local bash: 1
[oceanus:129119] pls:rsh: assuming same remote shell as local shell
[oceanus:129119] pls:rsh: remote csh: 0, remote bash: 1
[oceanus:129119] pls:rsh: final template argv:
[oceanus:129119] pls:rsh: /usr/bin/ssh <template> orted --debug
--bootproxy 1 --name <template> --num_procs 2 --vpid_start 0 --
nodename <template> --universe eddie@oceanus:default-universe --
nsreplica "0.0.0;tcp://xxx.xxx.xxx.xxx:52428" --gprreplica "
0.0.0;tcp://xxx.xxx.xxx.xxx:52428" --mpi-call-yield 0
[oceanus:129119] pls:rsh: launching on node localhost
[oceanus:129119] pls:rsh: oversubscribed -- setting
mpi_yield_when_idle to 1 (1 2)
[oceanus:129119] pls:rsh: localhost is a LOCAL node
[oceanus:129119] pls:rsh: changing to directory /home/eddie
[oceanus:129119] pls:rsh: executing: orted --debug --bootproxy 1 --
name 0.0.1 --num_procs 2 --vpid_start 0 --nodename localhost --
universe eddie@oceanus:default-universe --nsreplica "0.0.0;tcp://
xxx.xxx.xxx.xxx:52428" --gprreplica "0.0.0;tcp://xxx.xxx.xxx.xxx:
52428" --mpi-call-yield 1
[oceanus:129120] [0,0,1] setting up session dir with
[oceanus:129120] universe default-universe
[oceanus:129120] user eddie
[oceanus:129120] host localhost
[oceanus:129120] jobid 0
[oceanus:129120] procid 1
[oceanus:129120] procdir: /tmp/openmpi-sessions-eddie@localhost_0/
default-universe/0/1
[oceanus:129120] jobdir: /tmp/openmpi-sessions-eddie@localhost_0/
default-universe/0
[oceanus:129120] unidir: /tmp/openmpi-sessions-eddie@localhost_0/
default-universe
[oceanus:129120] top: openmpi-sessions-eddie@localhost_0
[oceanus:129120] tmp: /tmp
[oceanus:129121] [0,1,0] setting up session dir with
[oceanus:129121] universe default-universe
[oceanus:129121] user eddie
[oceanus:129121] host localhost
[oceanus:129121] jobid 1
[oceanus:129121] procid 0
[oceanus:129121] procdir: /tmp/openmpi-sessions-eddie@localhost_0/
default-universe/1/0
[oceanus:129121] jobdir: /tmp/openmpi-sessions-eddie@localhost_0/
default-universe/1
[oceanus:129121] unidir: /tmp/openmpi-sessions-eddie@localhost_0/
default-universe
[oceanus:129121] top: openmpi-sessions-eddie@localhost_0
[oceanus:129121] tmp: /tmp
[oceanus:129122] [0,1,1] setting up session dir with
[oceanus:129122] universe default-universe
[oceanus:129122] user eddie
[oceanus:129122] host localhost
[oceanus:129122] jobid 1
[oceanus:129122] procid 1
[oceanus:129122] procdir: /tmp/openmpi-sessions-eddie@localhost_0/
default-universe/1/1
[oceanus:129122] jobdir: /tmp/openmpi-sessions-eddie@localhost_0/
default-universe/1
[oceanus:129122] unidir: /tmp/openmpi-sessions-eddie@localhost_0/
default-universe
[oceanus:129122] top: openmpi-sessions-eddie@localhost_0
[oceanus:129122] tmp: /tmp
[oceanus:129119] spawn: in job_state_callback(jobid = 1, state = 0x4)
[oceanus:129119] Info: Setting up debugger process table for
applications
MPIR_being_debugged = 0
MPIR_debug_gate = 0
MPIR_debug_state = 1
MPIR_acquired_pre_main = 0
MPIR_i_am_starter = 0
MPIR_proctable_size = 2
MPIR_proctable:
(i, host, exe, pid) = (0, localhost, tut01, 129121)
(i, host, exe, pid) = (1, localhost, tut01, 129122)
[oceanus:129121] mca_common_sm_mmap_init: ftruncate failed with
errno=13
[oceanus:129121] mca_mpool_sm_init: unable to create shared memory
mapping (/tmp/openmpi-sessions-eddie@localhost_0/default-universe/1/
shared_mem_pool.localhost )
----------------------------------------------------------------------
----
It looks like MPI_INIT failed for some reason; your parallel
process is
likely to abort. There are many reasons that a parallel process can
fail during MPI_INIT; some of which are due to configuration or
environment
problems. This failure appears to be an internal failure; here's some
additional information (which may only be relevant to an Open MPI
developer):
PML add procs failed
--> Returned "Out of resource" (-2) instead of "Success" (0)
----------------------------------------------------------------------
----
*** An error occurred in MPI_Init
*** before MPI was initialized
*** MPI_ERRORS_ARE_FATAL (goodbye)
[oceanus:129120] sess_dir_finalize: found proc session dir empty -
deleting
[oceanus:129120] sess_dir_finalize: job session dir not empty -
leaving
[oceanus:129120] sess_dir_finalize: found proc session dir empty -
deleting
[oceanus:129120] sess_dir_finalize: found job session dir empty -
deleting
[oceanus:129120] sess_dir_finalize: univ session dir not empty -
leaving
[oceanus:129120] orted: job_state_callback(jobid = 1, state =
ORTE_PROC_STATE_TERMINATED)
[oceanus:129120] sess_dir_finalize: job session dir not empty -
leaving
[oceanus:129120] sess_dir_finalize: found proc session dir empty -
deleting
[oceanus:129120] sess_dir_finalize: found job session dir empty -
deleting
[oceanus:129120] sess_dir_finalize: found univ session dir empty -
deleting
[oceanus:129120] sess_dir_finalize: found top session dir empty -
deleting
[eddie@oceanus:~/home2/mpi_tut]$
On 1/18/07, Ralph H Castain <r...@lanl.gov> wrote:
Hi Eddie
Open MPI needs to create a temporary file system – what we call our
"session directory" - where it stores things like the shared memory
file. From this output, it appears that your /tmp directory is
"locked" to root access only.
You have three options for resolving this problem:
(a) you could make /tmp accessible to general users;
(b) you could use the —tmpdir xxx command line option to point Open
MPI at another directory that is accessible to the user (for
example, you could use a "tmp" directory under the user's home
directory); or
(c) you could set an MCA parameter OMPI_MCA_tmpdir_base to identify
a directory we can use instead of /tmp.
If you select options (b) or (c), the only requirement is that
this location must be accessible on every node being used. Let me
be clear on this: the tmp directory must not be NSF mounted and
therefore shared across all nodes. However, each node must be able
to access a location of the given name – that location should be
strictly local to each node.
Hope that helps
Ralph
On 1/17/07 12:25 AM, "eddie168" < eddie168+ompi_u...@gmail.com >
wrote:
Dear all,
I have recently installed OpenMPI 1.1.2 on a OpenSSI cluster
running Fedora core 3. I tested a simple hello world mpi program
(attached) and it runs ok as root. However, if I run the same
program under normal user, it gives the following error:
[eddie@oceanus:~/home2/mpi_tut]$ mpirun -np 2 tut01
[oceanus:125089] mca_common_sm_mmap_init: ftruncate failed with
errno=13
[oceanus:125089] mca_mpool_sm_init: unable to create shared memory
mapping ( /tmp/openmpi- sessions-eddie@localhost_0/default-universe/
1/shared_mem_pool.localhost)
----------------------------------------------------------------------
----
It looks like MPI_INIT failed for some reason; your parallel
process is
likely to abort. There are many reasons that a parallel process can
fail during MPI_INIT; some of which are due to configuration or
environment
problems. This failure appears to be an internal failure; here's some
additional information (which may only be relevant to an Open MPI
developer):
PML add procs failed
--> Returned "Out of resource" (-2) instead of "Success" (0)
----------------------------------------------------------------------
----
*** An error occurred in MPI_Init
*** before MPI was initialized
*** MPI_ERRORS_ARE_FATAL (goodbye)
[eddie@oceanus:~/home2/mpi_tut]$
Am I need to give certain permission to the user in order to
oversubscribe processes?
Thanks in advance,
Eddie.
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