[MPICH] Error using MPI_WAITALL

[Rajeev Thakur]

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


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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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