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

Jayesh Krishna jayesh at mcs.anl.gov
Thu May 27 10:04:57 CDT 2010 

Hi,
 It looks like a bug in your code. When you double click and run your program it executes as a singleton process (MPI job with 1 MPI process).

Regards,
Jayesh
----- Original Message -----
From: "Yessica Brinkmann" <yessica.brinkmann at gmail.com>
To: "Jayesh Krishna" <jayesh at mcs.anl.gov>
Cc: mpich-discuss at mcs.anl.gov
Sent: Wednesday, May 26, 2010 5:35:55 PM GMT -06:00 US/Canada Central
Subject: Re: [mpich2-dev] I can not make MPI recognizes a dual core

When I execute my program with doble click over the Mergesort.exe it
works, but it does not use two processors. Do you think that I can to
have an error in my program?
Very thanks,
Yessica Brinkmann

2010/5/26 Yessica Brinkmann <yessica.brinkmann at gmail.com>:
> Hi, very thanks for your response.
> When I write "mpiexec -n 2 hostname" and provided the password the
> system response to me:
> User-PC
> User-PC
> When I write "mpiexec -n 2 C:\Program Files\MPICH2\examples\cpi.exe"
> the program works!!! It is a program for calculate the value of PI.
>
> When I write the sentence for  my program:
>
> mpiexec -n 2 C:\Users\User\Mis documentos\Visual Studio
> 2008\Projects\Mergesort\Release\Mergesort.exe
>
> I have the error:
> Fatal error in MPI_Finalize: Other MPI error, error stack:
> MPI_Finalize(318).........................: MPI_Finalize failed
> MPI_Finalize(211).........................:
> MPID_Finalize(92).........................:
> PMPI_Barrier(476)...................... ..: MPI_Barrier(comm=0x44000002) failed
> MPIR_Barrier(82)..........................:
> MPIC_Sendrecv(164)........................:
> MPIC_Wait(513)............................:
> MPIDI_CH3i_Progress_wait(215).............: an error occurred while handling an
> event returned by MPIDU_Sock_Wait()
> MPIDI_CH3I_Progress_handle_sock_event(420):
> MPIDU_Sock_wait(2606).....................: El nombre de red especificado ya no
> estß disponible. (errno 64)
>
> job aborted:
> rank: node: exit code[: error message]
> 0: User-PC: -1073740777: process 0 exited without calling finalize
> 1: User-PC: 1: Fatal error in MPI_Finalize: Other MPI error, error stack:
> MPI_Finalize(318).........................: MPI_Finalize failed
> MPI_Finalize(211).........................:
> MPID_Finalize(92).........................:
> PMPI_Barrier(476).........................: MPI_Barrier(comm=0x44000002) failed
> MPIR_Barrier(82)..........................:
> MPIC_Sendrecv(164)........................:
> MPIC_Wait(513)............................:
> MPIDI_CH3i_Progress_wait(215).............: an error occurred while handling an
> event returned by MPIDU_Sock_Wait()
> MPIDI_CH3I_Progress_handle_sock_event(420):
> MPIDU_Sock_wait(2606).....................: El nombre de red especificado ya no
> estß disponible. (errno 64)
>
> Do you think that I have an error in my program or why is this error?
> I will thanks any help.
> Yessica Brinkmann
>
>
> 2010/5/26 Jayesh Krishna <jayesh at mcs.anl.gov>:
>> Hi,
>>  Did "mpiexec -n 2 hostname" work ? Is your machine 32-bit or 64-bit (The 32-bit installations are provided with pre-compiled sample MPI programs that you can try, c:\progra~1\mpich2\examples\cpi.exe OR you can download https://svn.mcs.anl.gov/repos/mpi/mpich2/trunk/examples/cpi.c and try it)?
>>
>> Regards,
>> Jayesh
>> ----- Original Message -----
>> From: "Yessica Brinkmann" <yessica.brinkmann at gmail.com>
>> To: "Jayesh Krishna" <jayesh at mcs.anl.gov>
>> Cc: mpich-discuss at mcs.anl.gov
>> Sent: Wednesday, May 26, 2010 11:34:36 AM 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. MPI is an admin user. I intall
>> MPICH for only an user because a teacher give me this tip.
>> When mpiexec prompts for the username I press the enter key, and then
>> I write the password.
>> The system response to me:
>> job aborted:
>> rank: node: exit code [: error message]
>> 0: User-PC: -1073740777: process 0 exited without calling finalize
>> 1: User-PC: 123
>> I do not have in my team who has installed/used MPICH2, I sorry.
>> I will thanks any help.
>> Yessica Brinkmann
>>
>> 2010/5/26 Jayesh Krishna <jayesh at mcs.anl.gov>:
>>> Hi,
>>>  Is the new user, MPI, an admin user ? How did you install MPICH2 for only that user ? I am still surprised that you have to install smpd explicitly (that the installer does not install it for you).
>>>  MPICH2 runtime system requires user credentials to launch an MPI job. Looks like you are logged on as "User-PC\MPI". Try entering the password (for user "User-PC\MPI") without entering the username (When mpiexec prompts for the username just press the enter key).
>>>  I would also recommend getting help from your sysadmin regarding installation of MPICH2 (Or better anyone else in your team who has installed/used MPICH2).
>>>
>>> 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: Tuesday, May 25, 2010 9:14:53 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.
>>> I created a new user called MPI and I reinstalled the MPICH2 only for
>>> this user, and I executed the sentences that you say for me.
>>> When I write
>>> smpd -uninstall
>>> The system response to me:
>>> Stopping MPICH2 Process Manager, Argonne National Lab.
>>> MPICH2 Process Manager, Argonne National Lab stopped.
>>> MPICH2 Process Manager, Argonne National Lab removed.
>>>
>>> When I write:
>>> smpd -install -phrase behappy
>>>  The system response to me:
>>> MPICH2 Process Manager, Argonne National Lab installed.
>>>
>>> When I write:
>>> smpd -status
>>>  The system response to me:
>>> smpd running on User-PC
>>>
>>> When I write:
>>> mpiexec -n 2 hostname
>>>  The system response to me:
>>> User credentials needed to launch processes:
>>> account(domain\user) [User-PC\MPI]:
>>>
>>> And at this point I does not how I should write, I try with MPI or
>>> User-PC\MPI, but does not work.
>>> Then the system ask to me for the password:
>>> I write the password that I use for the MPI user, and the system response to me:
>>> Credentials for MPI rejected connecting to User-PC.
>>> Aborting: Unable to connect to User-PC
>>> I think this is because I does not known how I should write when the
>>> system ask to me:
>>> User credentials needed to launch processes:
>>> account(domain\user) [User-PC\MPI]:
>>>
>>> I will thanks any help.
>>> Yessica Brinkmann
>>>
>>>
>>>
>>>
>>>
>>> 2010/5/25  <jayesh at mcs.anl.gov>:
>>>> Hi,
>>>>  This is strange... With the information provided by you I can only make the following suggestions (I can provide better suggestions if you provide me more details),
>>>>
>>>> # Uninstall smpd from an ADMIN command prompt by typing, "smpd -uninstall"
>>>> # Install smpd from the ADMIN command prompt by typing, "smpd -install -phrase behappy"
>>>> # Check status of smpd from the ADMIN command prompt by typing, "smpd -status"
>>>> # Run a non-MPI program from the ADMIN command prompt by typing, "mpiexec -n 2 hostname"
>>>>
>>>> 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: Tuesday, May 25, 2010 3:10:40 PM GMT -06:00 US/Canada Central
>>>> Subject: Re: [mpich2-dev] I can not make MPI recognizes a dual core
>>>>
>>>> Hi,
>>>> I reinstalled MPICH and I does not modified the default SMPD
>>>> passphrase provided in the user input textbox, it is behappy.
>>>> After the installation I try to run a non-MPI program (mpiexec -n 2
>>>> hostname) and I have the same error:
>>>> I have the output:
>>>> Please specify an authentication passphrase for smpd: I write behappy
>>>> The system response to me:
>>>> Aborting: unable to connect to User-PC
>>>> Very thanks.
>>>> I will thanks any help.
>>>> Yessica Brinkmann
>>>>
>>>> 2010/5/25 Yessica Brinkmann <yessica.brinkmann at gmail.com>:
>>>>> Hi,
>>>>> Yes, I modified the default SMPD passphrase provided in the user input
>>>>> textbox. The error is because I modified the passphrase or because I
>>>>> provided an incorrect passphrase at the command line? Maybe I provided
>>>>> an incorrect passphrase at the command line, maybe I should to
>>>>> reinstall the MPICH2 and annotate the passphrase.
>>>>> Thanks very much.
>>>>> Yessica Brinkmann
>>>>>
>>>>> 2010/5/25  <jayesh at mcs.anl.gov>:
>>>>>> Hi,
>>>>>>  The error message shows that you did not specify an authentication passphrase for SMPD. If the installation process was successful you should not be seeing this message.
>>>>>>  During the installation process, the MPICH2 installer requests for the SMPD passphrase. A default SMPD passphrase is provided in the user input textbox for convenience. Did you delete/remove the default passphrase during the installation step ?
>>>>>>  Can you reply with details the steps used to install MPICH2 (You can add inputs to the installation steps that I provided in my previous email)? Also specify, in detail, if you modified any default input values during the installation process.
>>>>>>
>>>>>> 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: Tuesday, May 25, 2010 11:18:27 AM 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.
>>>>>> I reinstalled the MPICH2 by the steps that you say to me.
>>>>>> After the installation I try to run a non-MPI program (mpiexec -n 2
>>>>>> hostname) and I have the same error:
>>>>>> I have the output:
>>>>>> Please specify an authentication passphrase for smpd:
>>>>>> I write the authentication passphrase and the system response to me:
>>>>>> Aborting: unable to connect to User-PC
>>>>>> Very thanks.
>>>>>> I will thanks any help.
>>>>>> Yessica Brinkmann
>>>>>>
>>>>>> 2010/5/25  <jayesh at mcs.anl.gov>:
>>>>>>> Hi,
>>>>>>>  I would recommend uninstalling MPICH2 and installing it again from the administrator command prompt by following the steps below.
>>>>>>>
>>>>>>> # Download the latest version of MPICH2 (http://www.mcs.anl.gov/research/projects/mpich2/downloads/index.php?s=downloads).
>>>>>>> # Open an administrator command prompt (Right-click on the command prompt icon and select "Run as administrator")
>>>>>>> # From the admin command prompt use the msiexec utility to uninstall MPICH2 (eg: Type "msiexec /x mpich2-1.2.1p1-win-ia32.msi" to uninstall MPICH2 using the mpich2-1.2.1p1-win-ia32.msi installer)
>>>>>>> # The above command will bring up the Installer GUI to uninstall MPICH2. Follow the steps to uninstall MPICH2.
>>>>>>> # From the admin 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
>>>>>>> ----- Original Message -----
>>>>>>> From: "Yessica Brinkmann" <yessica.brinkmann at gmail.com>
>>>>>>> To: "Jayesh Krishna" <jayesh at mcs.anl.gov>
>>>>>>> Cc: mpich-discuss at mcs.anl.gov
>>>>>>> Sent: Monday, May 24, 2010 5:28:07 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.
>>>>>>> I sorry, I now open an administrative command prompt.
>>>>>>> Now, when I write:
>>>>>>> smpd -start
>>>>>>> I have the output:
>>>>>>> OpenService failed:
>>>>>>> El servicio especificado no existe como servicio instalado (error 1060).
>>>>>>>
>>>>>>> When I write:
>>>>>>> smpd -install
>>>>>>> I have the output:
>>>>>>> MPICH Process Manager, Argonne National Lab installed.
>>>>>>>
>>>>>>> Now, I write:
>>>>>>> smpd -start
>>>>>>> I have the output:
>>>>>>> MPICH Process Manager, Argonne National Lab failed to start.
>>>>>>> Ya se está ejecutando una instancia de este servicio (error 1056)
>>>>>>>
>>>>>>> And when I write:
>>>>>>> smpd -status
>>>>>>> I have the output:
>>>>>>> Please specify an authentication passphrase for smpd:
>>>>>>> I write the authentication passphrase and the system response to me:
>>>>>>> Aborting: unable to connect to User-PC
>>>>>>>
>>>>>>> And when I write:
>>>>>>> mpiexec -n 2 hostname
>>>>>>> I have the output:
>>>>>>> Please specify an authentication passphrase for smpd:
>>>>>>> I write the authentication passphrase and the system response to me:
>>>>>>> Aborting: unable to connect to User-PC
>>>>>>>
>>>>>>> I will thanks any help.
>>>>>>> Yessica Brinkmann
>>>>>>>
>>>>>>> 2010/5/24 Jayesh Krishna <jayesh at mcs.anl.gov>:
>>>>>>>> Hi,
>>>>>>>>  This is strange. From the error messages it looks like you don't have admin privileges. Are you able to open an administrative command prompt (Right-click on command prompt icon - select "Run as administrator")?
>>>>>>>>  What is the output when you type "smpd -install" from the admin command prompt (You have to run the command from an administrator command prompt)?
>>>>>>>>
>>>>>>>> Regards,
>>>>>>>> Jayesh
>>>>>>>> ----- Original Message -----
>>>>>>>> From: "Yessica Brinkmann" <yessica.brinkmann at gmail.com>
>>>>>>>> To: jayesh at mcs.anl.gov
>>>>>>>> Sent: Monday, May 24, 2010 5:02:14 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 interest.
>>>>>>>> When I type smpd -start the system response to me:
>>>>>>>> OpenSCManager failed:
>>>>>>>> Access denied (error 5)
>>>>>>>>
>>>>>>>> And when I type smpd -uninstall I have the same error:
>>>>>>>> OpenSCManager failed:
>>>>>>>> Access denied (error 5)
>>>>>>>>
>>>>>>>> Very thanks, I will thanks any help.
>>>>>>>> Yessica Brinkmann
>>>>>>>>
>>>>>>>> 2010/5/24  <jayesh at mcs.anl.gov>:
>>>>>>>>> Hi,
>>>>>>>>>  Try starting smpd from the administrative command prompt (Type "smpd -start" from the administrative command prompt) and let us know the result.
>>>>>>>>>  If starting smpd (the step above) fails, try uninstalling+installing smpd from the admin command prompt (Type "smpd -uninstall" to uninstall SMPD and then type "smpd -install" to install SMPD) and let us know the results.
>>>>>>>>>
>>>>>>>>> Regards,
>>>>>>>>> Jayesh
>>>>>>>>> ----- Original Message -----
>>>>>>>>> From: "Yessica Brinkmann" <yessica.brinkmann at gmail.com>
>>>>>>>>> To: "Jayesh Krishna" <jayesh at mcs.anl.gov>
>>>>>>>>> Cc: mpich-discuss at mcs.anl.gov
>>>>>>>>> Sent: Monday, May 24, 2010 4:40:44 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!!!
>>>>>>>>> I does not have error messages during MPICH2 installation. I turn off
>>>>>>>>> the firewall for run mpiexec -n 2 hostname.
>>>>>>>>>
>>>>>>>>> The output of "smpd -status" from an administrative command prompt is:
>>>>>>>>> no smpd running on User-PC
>>>>>>>>>
>>>>>>>>> I try running mpiexec -n 2 hostname from the administrative command
>>>>>>>>> prompt 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
>>>>>>>>>
>>>>>>>>> Very thanks. I will thanks any help.
>>>>>>>>> Yessica Brinkmann
>>>>>>>>>
>>>>>>>>> 2010/5/24 Jayesh Krishna <jayesh at mcs.anl.gov>:
>>>>>>>>>> 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
>>>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>

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