On Sep 16, 2009, at 8:30 AM, Marcin Stolarek wrote:
Hi,
It seems I solved my problem. Root of the error was, that I haven't
loaded blcr module. So I couldn't checkpoint even one therad
application.
I am glad to hear that you have things working now.
However I stil can't find MCA:blcr i
Hi,
I'm new to infiniband.
I installed the rdma_cm, rdma_ucm and ib_uverbs kernel modules.
When i'm running a ring test openmpi code, i've got :
[Lidia][0,1,1][btl_openib_endpoint.c:992:mca_btl_openib_endpoint_qp_init_query]
Set MTU to IBV value 4 (2048 bytes)
[Lidia][0,1,1][btl_openib_endpoint
Correct, you don't need DAPL. Can you send all the information listed
here:
http://www.open-mpi.org/community/help/
On Sep 17, 2009, at 9:17 AM, Yann JOBIC wrote:
Hi,
I'm new to infiniband.
I installed the rdma_cm, rdma_ucm and ib_uverbs kernel modules.
When i'm running a ring test o
On Sep 16, 2009, at 9:53 PM, Ralph Castain wrote:
Only the obvious, and not very helpful one: comm_spawn isn't thread
safe at this time. You'll need to serialize your requests to that
function.
This is likely the cause of your issues if you are calling
MPI_COMM_SPAWN in multiple threads si
Search through the mailing list archives -- this question has been
discussed a few times.
On Sep 3, 2009, at 2:03 AM, shan axida wrote:
Hi,
I had a glance at OpenMPI source codes and there are several
algorithms for MPI_Bcast function.
My question is how is the algorithm decided to use in a
Sorry for the delay in replying; my INBOX has become a disaster
recently. More below.
On Sep 14, 2009, at 5:08 AM, Sam Verboven wrote:
Dear All,
I'm having the following problem. If I execute the exact same
application using both openmpi and mpich2, the former takes more than
2 times as lo
Interesting. I'll try to take a look and see if I can reproduce today.
-- Josh
On Sep 14, 2009, at 4:54 PM, Jean Potsam wrote:
Hi Josh,
Thanks for the response. I am actually testing it on a
single node (though in the near future i will run it on a set of
nodes). Therefore, my a
HI Jeff, Ralph,
Yes, I call MPI_COMM_SPAWN in multiple threads simultaneously.
Because I need to expose my parallel algorithm as a web service, I need
multiple clients connect and execute my logic as same time(ie mutiple
threads).
For each client , a new thread is created (by Web service framew
Dear Open MPI people:
I'm trying to run a simple "hello world" program on Ubuntu 9.04
It's on a dual core laptop; no other machines.
Here is the output:
erin@erin-laptop:~$ mpirun -np 2 a.out
ssh: connect to host erin-laptop port 22: Connection refused
---
Only thing I can suggest is to place a thread lock around the call to
comm_spawn so that only one thread at a time can execute that
function. The call to mpi_init_thread is fine - you just need to
explicitly protect the call to comm_spawn.
On Sep 17, 2009, at 7:44 PM, Ashika Umanga Umagili
I gather you must be running a version of the old 1.2 series? Or are
you running 1.3?
It does make a difference as to the nature of the problem, and the
recommended solution.
Thanks
Ralph
On Sep 17, 2009, at 8:51 PM, Hodgess, Erin wrote:
Dear Open MPI people:
I'm trying to run a simple
It's 1.3, please.
Thanks,
Erin
Erin M. Hodgess, PhD
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: hodge...@uhd.edu
-Original Message-
From: users-boun...@open-mpi.org on behalf of Ralph Castain
Sent: Thu 9/17/2009 10:39 P
Thanks Ralph,
I have not much experience in this area.shall i use
pthread_mutex_lock(*),*pthread_mutex_unlock() ..etc or following which i
saw in OpenMPI source :
static opal_mutex_t ompi_lock;
OPAL_THREAD_LOCK(&ompi_lock);
//
OPAL_THREAD_UNLOCK(&ompi_lock);
Thanks in advance,
umanga
Ral
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