[mpich-discuss] [mpich2-dev] I can not make MPI recognizes a dual core

[Jayesh Krishna]

Hi,
 Did you get any error messages during MPICH2 installation ? Do you have any firewalls running on your machine (If so, turn off the firewall and re-run "mpiexec -n 2 hostname")?
 What is the output of "smpd -status" (Type "smpd -status" from an administrative command prompt)? Can you try running "mpiexec -n 2 hostname" from the administrative command prompt ?

Regards,
Jayesh
----- Original Message -----
From: "Yessica Brinkmann" <yessica.brinkmann at gmail.com>
To: jayesh at mcs.anl.gov
Cc: mpich-discuss at mcs.anl.gov
Sent: Monday, May 24, 2010 4:03:51 PM GMT -06:00 US/Canada Central
Subject: Re: [mpich2-dev] I can not make MPI recognizes a dual core

Hi, Very thanks for your response and your interest.
I do all that you say to me, I reinstalled MPICH2.
I try to run a non-MPI program (mpiexec -n 2 hostname) and I have the
same error:
Error while connectig to host, No se puede establecer una conexión ya
que el equipo de destino denegó expresamente dicha conexión (10061)
Connect on sock(host=User-PC, port=8676) failed, exhaused all end
points Unable to connect to 'User-PC:8678', sock error: Error = -1

I will thanks any help.
Yessica Brinkmann


2010/5/24  <jayesh at mcs.anl.gov>:
> Hi,
>  Did you get any errors during the installation of MPICH2 ?
>  I would recommend the following,
>
> # Uninstall MPICH2 from your system.
> # Download the latest version of MPICH2 (http://www.mcs.anl.gov/research/projects/mpich2/downloads/index.php?s=downloads).
> # Open an administrative command prompt (Right-click on the command prompt icon and select "Run as administrator")
> # From the administrative command prompt use the msiexec utility to install MPICH2 (eg: Type "msiexec /i mpich2-1.2.1p1-win-ia32.msi" to install MPICH2 using the mpich2-1.2.1p1-win-ia32.msi installer)
> # The above command will bring up the Installer GUI to install MPICH2. Follow the installer steps to install MPICH2.
> # After the installation try to run a non-MPI program (mpiexec -n 2 hostname) . If the job launcher, mpiexec, requests for a username/password please provide the same (When specifying the username/password make sure that you specify the domain name if the user is a domain user).
>
>  Let us know the results.
>
> Regards,
> Jayesh
> (PS: Please reply to this email for further correspondence regarding this request - I have copied the email to mpich-discuss instead of mpich2-dev since the discussion is not related to mpich2 dev )
>
> ----- Original Message -----
> From: "Yessica Brinkmann" <yessica.brinkmann at gmail.com>
> To: mpich2-dev at mcs.anl.gov
> Sent: Friday, May 21, 2010 7:08:41 PM GMT -06:00 US/Canada Central
> Subject: Re: [mpich2-dev] I can not make MPI recognizes a dual core
>
> Very thanks for your response. I am using windows 7 and I execute at
> windows comman line mpiexec -np 2 my_program.exe that you say to me,
> at the MPICH2\bin directory.
> The system response to me:
> Please specify an authentication passphrase for smpd:
> And then I write the authentication passphrase that I write on the
> MPICH instalation and the system response to me:
> Error while connectig to host, No se puede establecer una conexión ya
> que el equipo de destino denegó expresamente dicha conexión (10061)
> Connect on sock(host=User-PC, port=8676) failed, exhaused all end
> points Unable to connect to 'User-PC:8678', sock error: Error = -1
> I will thanks you very much any help.
> Thanks,
> Yessica Brinkmann
>
> 2010/5/21 Lisandro Dalcin <dalcinl at gmail.com>:
>> On 21 May 2010 14:07, Yessica Brinkmann <yessica.brinkmann at gmail.com> wrote:
>>> Hello.
>>
>> Hello, Yessica
>>
>>> I am using MPICH2. I am writing my first program in MPI.
>>
>> This mailing list is related to DEVELOPMENT of MPICH2, general (and
>> pretty basic, in your case) user-level questions about MPI should be
>> directed elsewhere.
>>
>>> I write the sentences:
>>> ...
>>> int id;
>>> MPI_Comm_rank (MPI_COMM_WORLD, & id);
>>> if (id == 0)
>>> / * Master task * /
>>> (
>>> ...
>>> )
>>> else
>>> / * Worker task * /
>>> (
>>> ...
>>> )
>>> And I write other sentences. The issue is that it does not recognize a
>>> DualCore processor, and takes the machine as it only has one
>>> processor, indeed, never enters the else.
>>> I would appreciate very much any help.
>>> Sincerely,
>>> Yessica Brinkmann
>>>
>>
>> After compiling your program:
>>
>> $ mpicc sourcecode.c -o myprogram
>>
>> you have to run it like this (requires first to "mpdboot"):
>>
>> $ mpiexec -n 2 ./myprogram
>>
>> of like this:
>>
>> $ mpiexec.hydra -n 2 ./myprogram
>>
>>
>>
>>
>> --
>> Lisandro Dalcin
>> ---------------
>> CIMEC (INTEC/CONICET-UNL)
>> Predio CONICET-Santa Fe
>> Colectora RN 168 Km 472, Paraje El Pozo
>> Tel: +54-342-4511594 (ext 1011)
>> Tel/Fax: +54-342-4511169
>>
>