Hi George,
Thank you for the prompt reply. Indeed we are constructing a data-type
description with more than 32k entries.
I attached a screenshot of the pData structure (displayed with the TotalView
debugger), I hope this helps you. Unfortunately I was not able to use gdb to
execute the call you
Jeff Squyres wrote:
That's truly odd -- I can't imagine why you wouldn't get the TCP
transport with the above command line. But the latencies, as you
mentioned, are far too low for TCP.
To be absolutely certain that you're not getting the IB transport, go
to the $prefix/lib/openmpi direct
Yes, this is sounding more mysterious. Please send the output listed
here:
http://www.open-mpi.org/community/help/
On Apr 19, 2007, at 8:15 AM, stephen mulcahy wrote:
Jeff Squyres wrote:
That's truly odd -- I can't imagine why you wouldn't get the TCP
transport with the above command
hi,
Hi,
I have migrated from LAM/MPI to OpenMPI. I am not able to execute simple
mpi code in which master sends an integer to slave.
If i execute code on single machine i.e start 2 instance on same machine
(mpirun -np 2 hello) this works fine.
If i execute in cluster using mpirun --pr
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Hello,
I'm interested on gathering MSG_ARRIVED events through the PERUSE API
offered by OpenMPI 1.2.
I've written an small MPIC C program that performs some communication,
and although I receive some MSG_ARRIVED events, however I'm loosing some
e
I need to make that error string be google-able -- I'll add it to the
faq. :-)
The problem is likely that you have multiple IP addresses, some of
which are not routable to each other (but fail OMPI's routability
assumptions). Check out these FAQ entries:
http://www.open-mpi.org/faq/?cat
Harald,
I check the PERUSE code which generate the MSG_ARRIVED event. There
seems to be no way to miss one of this events if the following
conditions are respected:
- the communicator where the message arrive has the MSG_ARRIVED event
attached
- if this event is active.
If you can provi
Michael,
Based on the image you sent your data-type look gigantic. There are
750K predefined type descriptions in your data-type, for a size of
12MB and an extent of 68MB. The data-type engine managed to optimize
your description down to 540K predefined type descriptions. Which is
still w
Hi,
I only have access to this test system for another 24 hours or so so I'm
not sure it's worth any more of your efforts. Coupled with the fact that
I don't have root on the system in question it could be more work too
figure out whats going on than its worth.
Thanks for your help so far,
Sorry we couldn't figure out it -- let us know if you resume your
Open MPI testing.
On Apr 19, 2007, at 6:24 PM, stephen mulcahy wrote:
Hi,
I only have access to this test system for another 24 hours or so
so I'm
not sure it's worth any more of your efforts. Coupled with the fact
that
Hi,
I have already seen this faq. Nodes in cluster does not have multiple
IP addresses. One thing i forgot to mention is that systems in cluster does
not have static IPs and get IP address through DHCP.
Also if there is a print statement (printf("hello world\n"); ) in slave it
is correctly
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