[mpich-discuss] [mpich2-dev] I can not make MPI recognizes a dual core
Yessica Brinkmann
yessica.brinkmann at gmail.com
Wed May 26 17:32:40 CDT 2010
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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