Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |   all Open MPI User's mailing list

Subject: Re: [OMPI users] Initializing OMPI with invoking the array constructor on Fortran derived types causes the executable to crash
From: Jalel Chergui (Jalel.Chergui_at_[hidden])
Date: 2013-01-11 08:19:21


Hi,

    Can you try to allocate conc array before inititialization ?

Regards,
Jalel
Le 11/01/2013 14:01, Stefan Mauerberger a écrit :
> Hi There!
>
> First of all, this is my first post here. In case I am doing something
> inappropriate pleas be soft with me. On top of that I am not quite sure
> whether that issue is related to Open MPI or GCC.
>
> Regarding my problem: Well, it is a little bulky, see below. I could
> figure out that the actual crash is caused by invoking Fortran's array
> constructor [ xx, yy ] on derived-data-types xx and yy. The one key
> factor is that those types have allocatable member variables.
> Well, that fact points to blame gfortran for that. However, the crash
> does not occur if MPI_Iinit is not called in before. Compiled as a
> serial program everything works perfectly fine. I am pretty sure, the
> lines I wrote are valid F2003 code.
>
> Here is a minimal working example:
> PROGRAM main
> USE mpi
>
> IMPLICIT NONE
>
> INTEGER :: ierr
>
> TYPE :: test_typ
> REAL, ALLOCATABLE :: a(:)
> END TYPE
>
> TYPE(test_typ) :: xx, yy
> TYPE(test_typ), ALLOCATABLE :: conc(:)
>
> CALL mpi_init( ierr )
>
> conc = [ xx, yy ]
>
> CALL mpi_finalize( ierr )
>
> END PROGRAM main
> Just compile with mpif90 ... and execute leads to:
>> *** glibc detected *** ./a.out: free(): invalid pointer: 0x00007fefd2a147f8 ***
>> ======= Backtrace: =========
>> /lib/x86_64-linux-gnu/libc.so.6(+0x7eb96)[0x7fefd26dab96]
>> ./a.out[0x400fdb]
>> ./a.out(main+0x34)[0x401132]
>> /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xed)[0x7fefd267d76d]
>> ./a.out[0x400ad9]
> With commenting out 'CALL MPI_Init' and 'MPI_Finalize' everything seems to be fine.
>
> What do you think: Is this a OMPI or a GCC related bug?
>
> Cheers,
> Stefan
>
>
> _______________________________________________
> users mailing list
> users_at_[hidden]
> http://www.open-mpi.org/mailman/listinfo.cgi/users

-- 
*------------------------------------------------------------------------*
  Jalel CHERGUI, LIMSI-CNRS, Bât. 508 - BP 133, 91403 Orsay cedex, FRANCE
  Tél: (33 1) 69 85 81 27     ; Télécopie: (33 1) 69 85 80 88
  Mél: Jalel.Chergui_at_[hidden] ; Référence: http://perso.limsi.fr/chergui
*------------------------------------------------------------------------*