[FLASH-USERS] [EXT] Type mismatch for while running 'make'

[Reyes, Adam]

dtMinLoc(1) is an integer. The first argument to MPI_Bcast is the start of the buffer being communicated and should match the type declared in the third argument, MPI_REAL or MPI_INTEGER. “Pgmin” in the 4th place is the rank of the broadcast origin, which is always an integer, in this case the process that owns the limiting time step.

https://www.mpich.org/static/docs/v3.1/www3/MPI_Bcast.html
*********************************************
Adam Reyes


Code Group Leader, Flash Center for Computational Science  
Research Scientist, Dept. of Physics and Astronomy
University of Rochester
River Campus: Bausch and Lomb Hall, 369  
500 Wilson Blvd. PO Box 270171, Rochester, NY 14627
Email adam.reyes at rochester.edu
Web https://flash.rochester.edu
 (he / him / his)


*********************************************



> On May 17, 2024, at 10:00 AM, Bertini, Denis Dr. <D.Bertini at gsi.de> wrote:
> 
> Hi Adam
> in MPI_Bcast dtMinloc(10 or extraHydroninfo are declared as REAL, but pgmin is INTEGER.
> Cheers,
> Denis
> From: Reyes, Adam <adam.reyes at rochester.edu>
> Sent: Friday, May 17, 2024 9:54:58 AM
> To: Bertini, Denis Dr.
> Cc: Neogi, Srijan; flash-users at flash.rochester.edu
> Subject: Re: [EXT] [FLASH-USERS] Type mismatch for while running 'make'
>  
> Hi Dennis,
> 
> I’m not sure what you mean. Gfortran complains here because the same subroutine, “MPI_Bcast”, is being called twice with different signatures, first with an integer argument then with a real, but are broadcasting to two different variables “dtMinLoc(1)” & “extraHydroInfo". GCC 10 introduced much stricter type checking and only allows this kind of function overloading with an explicit interface. The default behavior in FLASH is to use the “mpif.h” header file, which does not provide any interfaces.
> 
> In 4.8 we have added the option to use the mpi module instead by adding a line “USE_MPI=1” in your Makefile.h that should allow you to leave out the “allow-mismatch” flag.
> *********************************************
> Adam Reyes
> 
> <FLASH.jpg>
> Code Group Leader, Flash Center for Computational Science  
> Research Scientist, Dept. of Physics and Astronomy
> University of Rochester
> River Campus: Bausch and Lomb Hall, 369  
> 500 Wilson Blvd. PO Box 270171, Rochester, NY 14627
> Email adam.reyes at rochester.edu
> Web https://flash.rochester.edu
>  (he / him / his)
> <FLASH-pride-sml.png>
> 
> *********************************************
> 
> 
> 
>> On May 17, 2024, at 9:42 AM, Bertini, Denis Dr. <D.Bertini at gsi.de> wrote:
>> 
>> Hi Adam
>> I am not sure about the validity of the allow-mismatch flag in this context.
>> You basically send a real  anf receive it as an integer ... this is not allowed in MPI and will
>> not garantee the validity of reveived message.
>> 
>> Basically i have to downgrade the gfortran compiler to v8.x to be able to compile this code,
>> any modern gcc compiler 12,13, 14 does not accept that and ... it is correct.
>> 
>> 
>> Cheers,
>> Denis 
>> 
>> PS this is only the first hit, there are still many other place in the code where the same error is done
>> with Bcast.
>> From: flash-users <flash-users-bounces at flash.rochester.edu> on behalf of Reyes, Adam <adam.reyes at rochester.edu>
>> Sent: Friday, May 17, 2024 8:01:15 AM
>> To: Neogi, Srijan
>> Cc: flash-users at flash.rochester.edu
>> Subject: Re: [FLASH-USERS] Type mismatch for while running 'make'
>>  
>> Hi Srijan,
>> 
>> See the solution offered here: https://flash.rochester.edu/pipermail/flash-users/2023-June/004054.html
>> And the links within.
>> *********************************************
>> Adam Reyes
>> 
>> <FLASH.jpg>
>> Code Group Leader, Flash Center for Computational Science  
>> Research Scientist, Dept. of Physics and Astronomy
>> University of Rochester
>> River Campus: Bausch and Lomb Hall, 369  
>> 500 Wilson Blvd. PO Box 270171, Rochester, NY 14627
>> Email adam.reyes at rochester.edu
>> Web https://flash.rochester.edu
>>  (he / him / his)
>> <FLASH-pride-sml.png>
>> 
>> *********************************************
>> 
>> 
>> 
>>> On May 17, 2024, at 5:28 AM, Neogi, Srijan <srijan_neogi at brown.edu> wrote:
>>> 
>>> Dear Users, 
>>> I am trying to build and install Flash 4.8. I followed the steps given in the manual: 
>>> 1. unpack the FLASH source code distribution.
>>>  tar -xvf FLASHX.Y.tar
>>> 2. Type
>>>      ./setup Sedov -auto    (SUCCESS)
>>> 3. Tried to compile with: 
>>> cd object
>>> make 
>>> and I get the following error: Type mismatch between actual argument at (1) and actual argument at (2) (REAL(8)/INTEGER(4))
>>> I have attached a screenshot of my terminal if that helps. 
>>> <Screenshot 2024-05-16 at 11.26.38 PM.png>
>>> 
>>> Thanks in advance!
>>> 
>>> Best Regards, 
>>> Srijan 
>>> 
>>> 
>>> 
>>> _______________________________________________
>>> flash-users mailing list
>>> flash-users at flash.rochester.edu
>>> 
>>> For list info, including unsubscribe:
>>> https://flash.rochester.edu/mailman/listinfo/flash-users

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