[mpich-discuss] MPI 64 bit for 64 bit code on windows7 64 bit

[Jayesh Krishna]

Hi,
 Can you send us a test program (source code) that fails?

(PS: I am assuming that you recompiled your code after installing the 64-bit libs.)
Regards,
Jayesh

----- Original Message -----
From: "Marco De Gregorio" <marco.degregorio at iet.unipi.it>
To: mpich-discuss at mcs.anl.gov
Sent: Monday, September 24, 2012 11:21:46 AM
Subject: [mpich-discuss] MPI 64 bit for 64 bit code on windows7 64 bit


Hi, 

I work with a Fortran code. I use Visual Studio 2008 and Intel Fortran 11. 
I have always used 32 bit MPI successfully. 
Now I need to switch my code to 64 bit. First of all I uninstalled 32 bit MPICH2 and I installed mpich2-1.4.1p1-win-x86-64. 
I have several problems. 
When I launch my program, the first value of some integer array ( block_lengths ) changes sign after some MPI_GET_ADDRESS and I have an error message. Below you can find a piece of code. 

block_lengths(:) = 1 

!get addresses 
CALL MPI_GET_ADDRESS(var_name%distance,address(1),MY_MPI_error) 
CALL MPI_GET_ADDRESS(var_name%min_distance,address(2),MY_MPI_error) 
CALL MPI_GET_ADDRESS(var_name%max_distance,address(3),MY_MPI_error) 
CALL MPI_GET_ADDRESS(var_name%flag,address(4),MY_MPI_error) 

So, I changed the position of these arrays in the code and I have bypass the error, but after the change, however the code doesn't work. The problem is with a mpi_send and mpi_receiver. 

address is defined as INTEGER(KIND = MPI_ADDRESS_KIND) :: address(SIZE) , but write(*,*) MPI_GET_ADDRESS returns 4. 

In the mpif.h I found: 
INTEGER MPI_ADDRESS_KIND, MPI_OFFSET_KIND 
PARAMETER (MPI_ADDRESS_KIND=8) 
PARAMETER (MPI_OFFSET_KIND=8) 

There is a mistake. 

Do you have any idea to help me?? 

With 32 bit MPICH2 and 32 bit code I don't have error. 
If I try mpiexec -n 1 code_64bit.exe , the 64 bit code works fine. 

Thank you, 
regards, 


-- 


Ing. Marco De Gregorio 
Microwave & Radiation Laboratory 
Dip. Ingegneria dell'Informazione - Università di Pisa 
via G. Caruso 16, 56122 Pisa - Italy 
Lab: (+39)050.2217681 
Mail: marco.degregorio at iet.unipi.it 


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