Hello,
Open MPI 1.2.4
I am trying to run a simple C program.
##
#include
#include
#include
#include "mpi.h"
void
main(int argc, char **argv)
{
int tag = 0;
int my_ra
it spawns. Thus, you can not spawn a non-MPI job such as
/bin/hostname, since the parent process waits for some messages from
the
child process(es) in order to set up the intercommunicator.
Thanks
Edgar
Prakash Velayutham wrote:
Hello,
Open MPI 1.2.4
I am trying to run a simple
mm_size(MPI_COMM_WORLD, &num_proc);
MPI_Comm_get_parent(&inter_comm);
MPI_Finalize();
exit(0);
}
Thanks,
Prakash
On Dec 2, 2007, at 8:36 PM, Edgar Gabriel wrote:
MPI_Comm_spawn is tested nightly by the test our suites, so it should
definitely work...
Thanks
Edgar
Pra
slave.c:43
(gdb)
Prakash
On Dec 6, 2007, at 12:08 AM, Prakash Velayutham wrote:
Hi Edgar,
I changed the spawned program from /bin/hostname to a very simple MPI
program as below. But now, the slave hangs right at MPI_Init line.
What could the issue be?
slave.c
#include
#include
#include
Hi,
I am trying to start a simple MPI code below using Open MPI 1.2.4 and
Torque 2.2.1.
prakash@bmi-opt2-04:~/thesis/CS/Samples/changejob> cat pbs.c
#include
#include "mpi.h"
int gdb_var;
void main(argc, argv)
int argc;
char **argv;
{
int rank, size, ret;
gdb_var = 0;
char *job
nodes before starting the job.
Are you seeing cases where this is not happening?
More below.
On Jan 5, 2008, at 3:48 AM, Prakash Velayutham wrote:
Hi,
I am trying to start a simple MPI code below using Open MPI 1.2.4 and
Torque 2.2.1.
prakash@bmi-opt2-04:~/thesis/CS/Samples/changejob>
Hi Ankush,
You can get some example MPI programs from http://www.pdc.kth.se/training/Tutor/MPI/Templates/index-frame.html
.
You can compare the performance of these in a MPI (single processor,
multiple processors) setting and non-MPI (serial) setting to show how
it can help their research.
Hi Jeff,
I have a minimal MPI program to test the TM interface and strangely I seem to
get errors during tm_init call. Could you explain what could be wrong? Have you
seen anything similar. Here is the MPI code:
#include
#include
#include
extern char **environ;
void do_check(int val, char
Pak Lui wrote:
Prakash,
tm_poll: protocol number dis error 11
ret is 17002 instead of 0: tm_init failed
3 processes killed (possibly by Open MPI)
I encountered similar problem with OpenPBS before, which also uses the
TM interfaces. It returns a TM_ENOTCONNECTED (17002) when I tried to
call tm
n MPI)
I am using Torque-2.0.0p7 and Open MPI-1.0.1.
Prakash: are you running an unmodified version of Torque 2.0.0p7?
I will test an unmodified version of 2.0.0p8 right now and let you know,
but I am positive that is not the issue.
TIA,
Prakash
> -Original Message-
> From: u
r 11
ret is 17002 instead of 0: tm_init failed
3 processes killed (possibly by Open MPI)
I am using Torque-2.0.0p7 and Open MPI-1.0.1.
Prakash: are you running an unmodified version of Torque 2.0.0p7?
I will test an unmodified version of 2.0.0p8 right now and let you know,
but I am positive that is no
Hi All,
What does this error mean?
**
socket 10: [wins02:19102] [0,0,3]-[0,0,0] mca_oob_tcp_msg_recv: readv
failed with errno=104
socket 12: [wins01:19281] [0,0,4]-[0,0,0] mca_oob_tcp_msg_recv: readv
failed with errno=104
point (mpirun) during startup. Do you have any firewalls or
port blocking running in your cluster?
-Original Message-
From: users-boun...@open-mpi.org
[mailto:users-boun...@open-mpi.org] On Behalf Of Prakash Velayutham
Sent: Friday, April 14, 2006 11:00 AM
To: us...@open-mpi.org
Cc: Pr
Renato Golin wrote:
> On 9/13/06, imran shaik wrote:
>
>> I need to run parallel jobs on a cluster typically of size 600 nodes and
>> running SGE, but the programmers are good at perl but not C or C++. So i
>> thought of MPI, but i dont know whether it has perl support?
>>
>
> Hi Imran,
>
ure of the support for MPI-2 standard with
> >either of these modules. Is there someone here that can answer that
> >question too? Also those modules seem to work only with MPICH now and
> >not the other MPI distributions.
>
> Prakash Velayutham wrote: Renato Golin wrote:
Use Perl's Parallel::MPI (or Parallel::MPI::Simple) module. Get it from
CPAN. Documentation should be good enough to start with.
Prakash
Abhishek Pratap wrote:
> Can i execute a code written in perl over with MPI.
>
> My code also access a database present locally on the server.
>
> I am new to
e able to access the mysql database
> simultaneously from the server.
>
> Regards,
> Abhishek
>
> On 9/29/06, Prakash Velayutham wrote:
>>
>> Use Perl's Parallel::MPI (or Parallel::MPI::Simple) module. Get it from
>> CPAN. Documentation should be good enough
Hello,
I have Torque as the batch manager and Open MPI (1.0.1) as the MPI
library. Initially I request for 'n' processors through Torque. After
the Open MPI jobs starts, based on certain conditions, I want to acquire
more processors outside of the initially assigned nodes by Torque. Is
this a prob
Hello,
I have built Open MPI (1.2) with run-time environment enabled for Torque
(2.1.6) resource manager. Initially I am requesting 4 nodes (1 CPU each)
from Torque. The from inside of my MPI code I am trying to spawn more
processes to nodes outside of Torque-assigned nodes using
MPI_Comm_spawn, b
e name of the node if it isn't in
your
allocation??
Ralph
On 4/2/07 10:05 AM, "Prakash Velayutham"
wrote:
> Hello,
>
> I have built Open MPI (1.2) with run-time environment enabled for
Torque
> (2.1.6) resource manager. Initially I am requesting 4 nodes (1 CPU
each)
tch I've quickly done for my own use, which changes
the round-robin rmaps such that is first allocates the hosts to the
rmgr, as a copy&paste of some code in the dash_host ras component. It's
far from being bugfree, but it can be a startpoint to hack.
Jeremy
> Ralph
>
>
&g
ferent solution to dynamically adding
nodes under Torque (or any other resource manager).
Ralph
On 4/2/07 10:53 AM, "Prakash Velayutham"
wrote:
> Hello,
>
> Thanks for the patch. I still do not know the internals of Open MPI, so can't
> test this right away. But h
Hello,
Version - Open MPI 1.2.1.
I have a simple program as below:
#include
#include
#include
#include"mpi.h"
void
main(int argc, char **argv)
{
int tag = 0;
int my_rank;
int num_proc;
charmessage_0[] = "hello slav
ere in your code:
MASTER : spawning 3 slaves ...
and it certainly isn't anything we generate. Also, your output implies
you
are in some kind of loop, yet your code contains only a single
comm_spawn.
Could you please clarify?
Thanks
Ralph
On 6/3/07 5:50 AM, "Prakash Velayutham"
your code:
MASTER : spawning 3 slaves ...
and it certainly isn't anything we generate. Also, your output implies
you
are in some kind of loop, yet your code contains only a single
comm_spawn.
Could you please clarify?
Thanks
Ralph
On 6/3/07 5:50 AM, "Prakash Velayutham"
wrot
eck if /bin/hostname works with the spawn.
Thanks
Ralph
Thanks,
Prakash
On 6/5/07 4:16 AM, "Prakash Velayutham"
wrote:
Hi,
Sorry about that. Two lines got cut out from the program. Here is the
full program and error messages again. No Resource Manager involved,
just ssh/rsh.
Host
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