[MPICH] Error using MPI_WAITALL

[Vadivelan Ranjith]

If there is a bug in the code, it won't run on any machine. All machine should give some error. But our code is running on some machines(Dual-Core),  but not on othermachines(quad-core). I installed the same mpich2-1.0.3 in both machines and configured simillarly.

Velan

Rajeev Thakur <thakur at mcs.anl.gov> wrote:     It's likely a bug in the code, as it says invalid request.  Just removing MPI_Waitall is not a good solution as it is needed for a  correct program.
  
 Rajeev

       
---------------------------------
   From: owner-mpich-discuss at mcs.anl.gov    [mailto:owner-mpich-discuss at mcs.anl.gov] On Behalf Of Vadivelan    Ranjith
Sent: Sunday, February 11, 2007 10:55 AM
To:    mpich-discuss at mcs.anl.gov
Subject: [MPICH] Error using MPI_WAITALL    


   
 Hi 
  I am using mpich2-1.0.3 to compiling our code. Our code is    calling 
  MPI_WAITALL. We ran the case    in intel-Dual core without any problem 
  and solution was fine. I tried to ran the code in intel    quad-core. 
  Compilation using mpif90 is    fine. I started running the executable 
  file, i got the following error. 
  ------------------------------------------------------------------------------------------------------- 
  Fatal error in MPI_Waitall: Invalid MPI_Request, error stack:    
  MPI_Waitall(241):    MPI_Waitall(count=250, req_array=0x23e52e0, 
  status_array=0x7fbfffe3a0) failed 
  MPI_Waitall(109): Invalid MPI_Request 
 -----------------------------------------------------------------------------------------------------------------------    
 
  So i removed all the lines where MPI-WAITALL is using. Again i    
  compiled to code using mpif90(mpich)    and ran it. Now its running 
  without    any problem. Can you please explain me what is happen here. 
 
  Thanks    
  Velan      

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