[mpich-discuss] mpich user problem

[Rajeev Thakur]

As the error message suggests, are you calling any MPI function before MPI_Init is called?
 
Rajeev


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From: mpich-discuss-bounces at mcs.anl.gov [mailto:mpich-discuss-bounces at mcs.anl.gov] On Behalf Of Yen, Joseph
Sent: Tuesday, December 01, 2009 5:57 PM
To: 'mpich-discuss at mcs.anl.gov'
Subject: [mpich-discuss] mpich user problem


Hi,
 
I have an mpi c++ code which has been run fine with either lam-mpi and open-mpi. Intel C++ compiler (ver 11) has been used. But I
encounter the following error 
 
Attempting to use an MPI routine before initializing MPICH

when the same code is compiled using mpich-2 (ver 1.2.1) and the same C++ compiler. For your information, I have been working on an
AMD machine with SUSE linux OS where all the above experiences take place.
 
The following is the way I run the mpich2-built code and the above error results.
 
In a linux command prompt,
 
>mpd &
>mpiexec -n 16 mycode myinput
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH
Attempting to use an MPI routine before initializing MPICH

Your help is greatly appreciated.
Joseph
 
Joseph Yen, Ph.D.
Jacobs Technology
Tel: 931-393-6605
joseph.yen at jacobs.com
 
 

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