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From: Dirk Eddelbuettel (edd_at_[hidden])
Date: 2007-10-06 18:53:10


On 6 October 2007 at 09:36, Dirk Eddelbuettel wrote:
|
| On 5 October 2007 at 21:31, Brian Barrett wrote:
| | On Oct 5, 2007, at 8:48 PM, Dirk Eddelbuettel wrote:
| |
| | > With the (Debian package of the) current 1.2.4 release, I am seeing
| | > a lot of
| | >
| | > mca: base: component_find: unable to open osc pt2pt: file not
| | > found (ignored)
| | >
| | > that I'd like to suppress.
| | >
| | > For these Debian packages, we added a (commented-out by default)
| | > entry to
| | > suppress the Infiniband noise when no Infiniband hardware is to be
| | > found. I
| | > would like to suppress this 'osc pt2pt' message too.
| | >
| | > But all attempts at guestimating parameters for
| | > /etc/openmpi/openmpi-mca-params.conf
| | > based on what
| | > ompi_info all all
| | > shows failed. Could someone help me along?
| |
| | This is a bit different, and points to something bad going on. The
| | error message is that for some reason, a library that the pt2pt
| | component depends on was not found. The pt2pt osc component is
|
| Uh-oh. Doesn't sound good.
|
| | entirely built on the MPI layer -- it shouldn't have any external
| | dependencies. Can you run ldd on the library and see if there's
| | anything obvious?
|
| edd_at_ron:~> ldd /usr/lib/openmpi/mca_osc_pt2pt.so
| libnsl.so.1 => /lib/i686/cmov/libnsl.so.1 (0xb7f9a000)
| libutil.so.1 => /lib/i686/cmov/libutil.so.1 (0xb7f96000)
| libm.so.6 => /lib/i686/cmov/libm.so.6 (0xb7f70000)
| libpthread.so.0 => /lib/i686/cmov/libpthread.so.0 (0xb7f59000)
| libc.so.6 => /lib/i686/cmov/libc.so.6 (0xb7e11000)
| /lib/ld-linux.so.2 (0x80000000)
|
| Not that I can tell. What else could I test? The build-logs don't reveal
| anything fishy -- all pt2pt occurrences look fine. The build itself
| proceeded fine (and this was the Debian package build I then uplod)

Two more observations:
-- the message does not appear on my Ubuntu system
-- but it appears on Hao's Debian machine which does not use the Debian package

Could this be some dynamic loading issue? How can we go about solving this?

Dirk

-- 
Three out of two people have difficulties with fractions.