[mpich-discuss] MPICH2 not installed or unable to query the host

[Jayesh Krishna]

Hi,
 Use a machinefile to specify the machines that you need to run your job on.
 Copy the executable to the same location on both machines (Not necessary, but makes things easier) say "c:\temp". Create a text file "mf.txt" with the IP addresses of the two machines specified in different lines. Run your job as,

     mpiexec -n 10 -machinefile mf.txt -path "c:\temp" HelloWorld.exe

  For more information refer to the Windows developer's guide at http://www.mcs.anl.gov/research/projects/mpich2/documentation/index.php?s=docs

Regards,
Jayesh

----- Original Message -----
From: "Mis Nat" <kocka87 at gmail.com>
To: "Jayesh Krishna" <jayesh at mcs.anl.gov>
Cc: mpich-discuss at mcs.anl.gov
Sent: Friday, March 30, 2012 11:58:27 AM
Subject: Re: [mpich-discuss] MPICH2 not installed or unable to query the host

I have a simple HelloWorld program which I've tried to run for the begining. I run cmd.exe as Administrator and run my program with "mpiexec -n 10 HelloWorld.exe". The problem I have is that on A-Computer all processes are on A-Computer and if I try to run it on B-Computer all processes are on B-Computer. My final goal is to write QuickSort algorithm. But first I have to be sure my program will run on both computers, because I'm going to analyze the time. I assumed that I need A-Computer highlighted green and that will solve my problem.. 





Source code: 




#include <stdio.h> 
#include <mpi.h> 
int main(int argc, char **argv) { 
int rank; 
char host[150]; 
int namelen; 
MPI_Init(&argc, &argv); 
MPI_Comm_rank(MPI_COMM_WORLD, &rank); 
MPI_Get_processor_name(host,&namelen); 
printf("Hello world (Rank: %d / Host: %s)\n", rank, host); 
fflush(stdout); 
MPI_Finalize(); 
return 0; 
} 

On 30 March 2012 18:11, Jayesh Krishna < jayesh at mcs.anl.gov > wrote: 


Hi, 
This is a known bug. Please ignore it for now. 
Can you run your jobs with mpiexec from command line? 

Regards, 
Jayesh 




----- Original Message ----- 
From: "Mis Nat" < kocka87 at gmail.com > 
To: mpich-discuss at mcs.anl.gov 
Sent: Friday, March 30, 2012 5:26:29 AM 
Subject: [mpich-discuss] MPICH2 not installed or unable to query the host 


Hello! 


I have MPICH2 1.4.1p1 installed on two computers, both with Win 7 x86. 
On A-Computer something's wrong, I got error: "B: MPICH2 not installed or unable to query the host" , on B-Computers in "wmpiconfig.exe" B-Computer highlights green. 


Please, if anyone know what's wrong let me know. Also if you need more information about settings on both Computers. 


Many thanks! 
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