[mpich-discuss] Getting started in Win XP

[Bruce Evans]

(this is sortof a test to see if I can partake in this discussion)

Chuck -- Since "smpd" is the deamon/service running between the 2 systems,
Perhaps adding that program to the windows firewall as an exception would be
enough. I'll send details later once my PC is back up, but I recall you open
Windows Firewall, and in there is either a tab or menu for exceptions, and
in that area, you browse for the executable to add as the exception.

On Thu, Apr 22, 2010 at 9:20 AM, Charles Lawson <chucksolve at gmail.com>wrote:

>
> To: Jayesh (mpich-discuss)
>
> My two PC's are both 32 bit. I found that the firewall was ON on both PC's.
> I turned the firewall OFF on both PC's and the run worked just fine. I did
> not need to use IP numbers.
>
> Thanks much for getting me to this point.
>
> Is there a setting of the firewalls I can make that is not as drastic as
> turning them off completely?  Is there a program name or port I can list as
> an "exception" in the firewall control window?
>
> -- Chuck
> ======
> On Thu, Apr 22, 2010 at 8:01 AM, <jayesh at mcs.anl.gov> wrote:
>
>> Hi,
>>
>> # Do the two machines have the same architecture (are they both 32-bit
>> machines) ?
>>
>> # Does "mpiexec -hosts 2 Issac 1 Gauss 1 hostname" work (It should just
>> print the hostnames of the two machines)?
>>
>> # Does "mpiexec -n 2 fpi.exe" work on both machines ?
>>
>> # Do you have any firewall running on the machines ? If so, please try
>> again after turning off the firewall.
>>
>> # Also try specifying the ipaddresses of the machines instead of hostnames
>> (mpiexec -hosts 2 IPADDRESS_OF_ISSAC 1 IPADDRESS_OF_GAUSS 1 fpi.exe). You
>> can get the ipaddress by typing "ipconfig" at the command prompt.
>>
>>  Let us know the results.
>>
>> Regards,
>> Jayesh
>> ----- Original Message -----
>> From: "Charles Lawson" <chucksolve at gmail.com>
>> To: "MPICH Discussion" <Mpich-discuss at mcs.anl.gov>
>> Cc: EvansBW at gmail.com
>>  Sent: Wednesday, April 21, 2010 9:26:51 PM GMT -06:00 US/Canada Central
>> Subject: [mpich-discuss] Getting started in Win XP
>>
>>
>>
>> I downloaded MPICH2 for Windows in Nov, 2009. I installed in on two PC's
>> that I call Issac and Gauss that have access to my home wireless network.
>> The installation file is mpich2-1.2-win-ia32.msi. Issac uses XP-Pro and
>> Gauss uses XP-Home.
>>
>> I purchased the Intel Fortran compiler, Vers 11.1, in July, 2009, for use
>> on Issac, and I regularly use it there. I compiled the test case, fpi.f, on
>> Issac. I (eventually) got a successful execution on a single PC by using the
>> statement:
>>
>> mpiexec -hosts 1 Issac 1 fpi.exe
>>
>> I issued this command in a directory that contained mpiexec.exe and
>> fpi.exe. I am the only user of this PC, and I do not use a password -- maybe
>> I should say I have a blank password. Anyway the above command line didn't
>> work initially because it asked for a password, and I didn't have one. I
>> then set up a second User Name and gave it a password. Working under that
>> User Name I again issued the above command line and I gave it the password
>> when it asked for it, and it worked!! I was happy.
>>
>> Moving on to try running this on my two PC's, I tried the command line:
>>
>> mpiexec -hosts 2 Issac 1 Gauss 1 fpi.exe
>>
>> I had Gauss running with a User Name that has a password (which may or may
>> not have any bearing on the situation.)
>>
>> This failed with the message:
>>
>> launch failed: CreateProcess(fpi.exe) on 'Gauss' failed, error 2 - The
>> system cannot find the file specified.
>>
>> Then I tried giving fpi.exe a full path. I used:
>>
>> mpiexec -hosts 2 Issac 1 Gauss 1 \\Issac\mpi\fpi.exe
>>
>> That got further, but still not a complete execution. This responded with:
>> Process 0 of 2 is alive
>> Enter the number of intervals: (0 quits)
>> Process 1 of 2 is alive
>>
>> I entered 50, but there was no response. I entered 0 and still no
>> response, so I killed the run.
>>
>> I added four Fortran write statements into the test case, fpi.f. Before
>> and after the Call MPI_BCAST and before and after the Call MPI_REDUCE. Each
>> write included the value of myid in the output. I recompiled that. I then
>> tried the last command line above again. It responded with:
>>
>> Process 0 of 2 is alive
>> Enter the number of intervals: (0 quits)
>> Process 1 of 2 is alive
>> Proc 1 before call MPI_BCAST <= My debug write.
>> 50 <= My entry from the keyboard.
>> Proc 0 before call MPI_BCAST <= My debug write.
>>
>> and then just hung at that stage.
>>
>> I conclude that fpi.exe is executing on both PC's, and on both PC's it has
>> successfully gotten through calls to MPI_INIT, MPI_COMM_RANK and
>> MPI_COMM_SIZE. The "print ... alive" statement functioned correctly on both
>> PC's. Execution continued correctly up to the Call to MPI_BCAST. There it
>> died. Why?
>>
>> I will greatly apprciate suggestions as to how to get this test case to
>> run correctly. I am well acquainted with Fortran programming, but not well
>> acquainted with lower level operating system or networking components.
>>
>> Hoping for help,
>>
>> Chuck
>> =====
>>
>>
>>
>>
>>
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