2009/2/27 Nicolas Deladerriere :
> I am looking for a way to set environment variable with different value on
> each node before running MPI executable. (not only export the environment
> variable !)
I typically use a script for things like this. So instead of
specifying your executable directly
2009/2/26 Brett Pemberton :
> [[1176,1],0][btl_openib_component.c:2905:handle_wc] from tango092.vpac.org
> to: tango090 error polling LP CQ with status RETRY EXCEEDED ERROR status
> number 12 for wr_id 38996224 opcode 0 qp_idx 0
What OS are you using? I've seen this error and many other Infiniban
2008/12/9 Kevin Anthony Joy :
> if (rank==0) { /// REMOVE THIS IF
> MPI::COMM_WORLD.Scatter(
> stat,
> 1,
> MPI::DOUBLE,
> &test3,
> 1,
> MPI::DOUBLE,
> 0);
> }
Hi Kevin. I see you are mixing C and C++ calls. It is probably bes
Hi Prasanna, do you have any unusual ethernet interfaces on your
nodes? I have seen similar problems when using IP over Infiniband.
I'm not sure exactly why, but mixing interfaces of different types
(ib0 and eth0 for example) can sometimes cause these problems,
possibly because they are on differe
I've found that I always have to use mpirun to start my spawner
process, due to the exact problem you are having: the need to give
OMPI a hosts file! It seems the singleton functionality is lacking
somehow... it won't allow you to spawn on arbitrary hosts. I have not
tested if this is fixed in t
For beginners, it is worth picking up some books. I have used Using
MPI - 2nd Edition: Portable Parallel Programming with the Message
Passing Interface by Gropp, Lusk, and Skjellum.
The reference for MPI is available online at
http://www.mpi-forum.org/docs/docs.html, but hard copies are nice to
h
2008/6/27 Joao Marcelo :
> Hi,
>
> I'm starting to code with MPI and decided to use openmpi. I'm using
> Ubuntu Linux with GCC version 4.2.3 and OpenMPI 1.2.5 (distribution
> package). The output of "ompi_info -- all" is attached. I'm also
> sending a copy of the source code I'm trying to run.
On
ms to cause crashes in another library I use). I tried
rebuilding, omitting --without-memory-manager, but it failed in the
same way.
mch
> On May 29, 2008, at 3:50 AM, Matt Hughes wrote:
>
>> I have a program which uses MPI::Comm::Spawn to start processes on
>> compute
I have a program which uses MPI::Comm::Spawn to start processes on
compute nodes (c0-0, c0-1, etc). The communication between the
compute nodes consists of ISend and IRecv pairs, while communication
between the compute nodes consists of gather and bcast operations.
After executing ~80 successful l
With the TCP btl, when free list items are exhausted, OMPI 1.2.6 falls
into an infinite loop:
#3981 0x002a98b4e23f in opal_condition_wait (c=0x2a98c541d0,
m=0x2a98c54180) at ../../../../opal/threads/condition.h:81
#3982 0x002a98b4e0e9 in __ompi_free_list_wait (fl=0x2a98c540d0,
item
I was hanging problems with 1.2.5 hanging during collective operations
(MPI_Gather and MPI_Barrier):
2008/3/27 Matt Hughes :
> A similar problem was reported in this message, and a 1.3 nightly was
> reported to work:
> http://www.open-mpi.org/community/lists/users/2008/01/4891.p
On 30/03/2008, Joao Vicente Lima wrote:
> Hi,
> sorry bring this again ... but i hope use spawn in ompi someday :-D
I believe it's crashing in MPI_Finalize because you have not closed
all communication paths between the parent and the child processes.
For the parent process, try calling MPI_Comm
uggest where I can go from here?
Thanks,
Matt Hughes
ompi-info.tar.gz
Description: GNU Zip compressed data
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