Edit: Can you attach you machine file and the *smallest amount of code that will reproduce the error*. It's tough to dig through huge amounts of someone else's code to find the error and while you're trying to reduce the amount of code, you often find the issue. Thanks, Wesley On Thu, Aug 22, 2013 at 3:46 AM, Mahesh Doijade <[email protected]>wrote:
Can you attached your machinefile, your code and detailed error output.
On Tue, Aug 20, 2013 at 4:11 PM, urmila pol <[email protected]> wrote:
Dear sir,
I was given following command it will give floating point error . #mpirun -f mfile -np 2 hello4 Floating point exception
if I give following it will execute for single node
[root@masternode ~]# mpirun -np 2 hello4 Hello world from processor masternode.csd.com, rank 0 out of 2 processors Hello world from processor masternode.csd.com, rank 1 out of 2 processors [root@masternode ~]#
Please guide me for above error .waiting for ur reply.
On 8/20/13, urmila pol <[email protected]> wrote:
I do everything now i have one error flaoting point exception i am running my program now waiting for ur reply
With regards,
Dr.Urmila R. Pol Assistant Professor, Department of computer Science, Shivaji University, Kolhapur.
On Tue, Aug 20, 2013 at 10:44 AM, Mahesh Doijade <[email protected]>wrote:
The issue seems to be that you have probably not created a machinefile which consists of node name to number of processes mapping and this file should be present in the same dir. of the other nodes on
which
you are launching other MPI processes, this is required in case you want to run the MPI program across the two or more nodes, you can find more details of the format in which this information has to be in the machinefile and the other requisite steps need for running your MPI program across multiple nodes from this link http://wiki.mpich.org/mpich/index.php/Using_the_Hydra_Process_Manager Also, in order to launch the processes across multiple nodes you need to do ssh passwordless login among those nodes, in case you are using ssh as the connection mechanism, you can find more details about the procedure for ssh passwordless login over here http://www.techlitic.com/ssh-passwordless-login.html
Regards, Mahesh Doijade, http://www.techdarting.com/
On Tue, Aug 20, 2013 at 8:34 AM, Pavan Balaji <[email protected]> wrote:
I'm pasting the error inline, for others' information.
FYI, the error is "unable to open host file: machinefile".
----8<---- mpirun -f machinefile -n 2 /home/urp/mpich-install/hello [[email protected]] HYDU_parse_hostfile (./utils/args/args.c:323): unable to open host file: machinefile [[email protected]] mfile_fn (./ui/mpich/utils.c:341): error parsing hostfile [[email protected]] match_arg (./utils/args/args.c:153):
match
handler returned error [[email protected]] HYDU_parse_array (./utils/args/args.c:175): argument matching returned error [[email protected]] parse_args (./ui/mpich/utils.c:1609): error parsing input array [[email protected]] HYD_uii_mpx_get_parameters (./ui/mpich/utils.c:1660): unable to parse user arguments [[email protected]] main (./ui/mpich/mpiexec.c:153): error parsing parameters [root@masternode ~]# ----8<----
On 08/19/2013 01:27 AM, urmila pol wrote:
Dear sir,
I have attaching the screenshots of my errors please guide me .waiting for reply.
With regards,
Dr.Urmila R. Pol Assistant Professor, Department of computer Science, Shivaji University, Kolhapur.
-- Pavan Balaji http://www.mcs.anl.gov/~balaji ______________________________**_________________
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--
With regards,
Dr.Urmila R. Pol Assistant Professor, Department of computer Science, Shivaji University, Kolhapur.
--
Regards, -- Mahesh Doijade
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