[petsc-users] MatFactorNumeric_PASTIX error

[Vasia Kalavri]

Hello again.

> From: bsmith at mcs.anl.gov
> To: petsc-users at mcs.anl.gov
> Date: Wed, 3 Mar 2010 08:58:58 -0600
> Subject: Re: [petsc-users] MatFactorNumeric_PASTIX error
> 
> 
>    Build PETSc and Pastix with debugging turned on.
> 
>    ./configure --with-debugging=1 --download-pastix and see if it  
> still crashes. If it does then in the debugger you can get detailed  
> information about exactly where/why it crashed.

I rebuilt with debugging turned on but unfortunately, it still crashes. 
Where can I find the debugger detailed info?
I added some prints inside MatFactorNumeric_PaStiX() function 
and found out that the program crashes when calling pastix() function,
line 441 in pastix.c
 
>    Are you changing the nonzero structure of the matrix?

No I am not.
In fact, I ran the program without updating the input matrix after the first iteration and it still crashed!

> 
>     Barry
> 
> On Mar 3, 2010, at 1:14 AM, Vasia Kalavri wrote:
> 
> > Hello.
> > I use MatGetFactor(), MatCholeskyFactorSymbolic() and  
> > MatCholeskyFactorNumeric() with Pastix solver in an iterative loop  
> > in order to solve a system.
> > The program behaves as desired when using a matrix of size 118x118  
> > and solves the system after 7 iterations.
> > When using a matrix of size 1000x1000, the program crashes at the  
> > 2nd iteration just after calling MatCholeskyFactorNumeric().
> > The message I get is:
> >
> > [0]PETSC ERROR: [0] MatFactorNumeric_PASTIX line 347 src/mat/impls/ 
> > aij/mpi/pastix/pastix.c
> > [0]PETSC ERROR: [0] MatCholeskyFactorNumeric line 2517 src/mat/ 
> > interface/matrix.c
> > [0]PETSC ERROR: --------------------- Error Message  
> > ------------------------------------
> > [0]PETSC ERROR: Signal received!
> >
> > Option -start_in_debugger gives me the following output:
> >
> > [1]PETSC ERROR: MPI error 15
> > [vasia-desktop:15869] *** Process received signal ***
> > [vasia-desktop:15869] Signal: Aborted (6)
> > [vasia-desktop:15869] Signal code:  (-6)
> > [vasia-desktop:15869] [ 0] [0xb7eeb440]
> > [vasia-desktop:15869] [ 1] /lib/tls/i686/cmov/libc.so.6(abort+0x101)  
> > [0xb7b4ea01]
> > [vasia-desktop:15869] [ 2] ./ex1(Petsc_MPI_DebuggerOnError+0)  
> > [0x843d50e]
> > [vasia-desktop:15869] [ 3] /usr/lib/libmpi.so. 
> > 0(ompi_errhandler_invoke+0x113) [0xb7e773e3]
> > [vasia-desktop:15869] [ 4] /usr/lib/libmpi.so.0(MPI_Recv+0x1b5)  
> > [0xb7eac125]
> > [vasia-desktop:15869] [ 5] ./ex1(Dreceive_one_fanin+0x8e) [0x849aa05]
> > [vasia-desktop:15869] [ 6] ./ex1(Dwait_contrib_comp_1d+0x43)  
> > [0x84a69f9]
> > [vasia-desktop:15869] [ 7] ./ex1(Dsopalin_smp+0x2be) [0x84a6d6f]
> > [vasia-desktop:15869] [ 8] /lib/tls/i686/cmov/libpthread.so.0  
> > [0xb7d6d4fb]
> > [vasia-desktop:15869] [ 9] /lib/tls/i686/cmov/libc.so.6(clone+0x5e)  
> > [0xb7bf8e5e]
> > [vasia-desktop:15869] *** End of error message ***
> > .
> > .
> > .
> > [vasia-desktop:15868] *** Process received signal ***
> > [vasia-desktop:15868] Signal: Aborted (6)
> > [vasia-desktop:15868] Signal code:  (-6)
> > [vasia-desktop:15868] [ 0] [0xb7fdd440]
> > [vasia-desktop:15868] [ 1] /lib/tls/i686/cmov/libc.so.6(abort+0x101)  
> > [0xb7c40a01]
> > [vasia-desktop:15868] [ 2] ./ex1 [0x848d825]
> > [vasia-desktop:15868] [ 3] ./ex1(PetscError+0x317) [0x840d5c9]
> > [vasia-desktop:15868] [ 4] ./ex1(PetscDefaultSignalHandler+0x3b4)  
> > [0x848e32f]
> > [vasia-desktop:15868] [ 5] ./ex1 [0x848df5b]
> > [vasia-desktop:15868] [ 6] [0xb7fdd420]
> > [vasia-desktop:15868] [ 7] ./ex1(sopalin_launch_thread+0x560)  
> > [0x84c8c70]
> > [vasia-desktop:15868] [ 8] ./ex1(Dsopalin_thread+0x168) [0x84a745e]
> > [vasia-desktop:15868] [ 9] ./ex1(pastix_task_sopalin+0x52b)  
> > [0x8497f1b]
> > [vasia-desktop:15868] [10] ./ex1(pastix+0x261) [0x8499804]
> > [vasia-desktop:15868] [11] ./ex1(MatFactorNumeric_PaStiX+0xff6)  
> > [0x817777c]
> > [vasia-desktop:15868] [12] ./ex1(MatCholeskyFactorNumeric+0x760)  
> > [0x80957d4]
> > [vasia-desktop:15868] [13] ./ex1(main+0x3a01) [0x807e5f9]
> > [vasia-desktop:15868] [14] /lib/tls/i686/cmov/libc.so. 
> > 6(__libc_start_main+0xe0) [0xb7c2a450]
> > [vasia-desktop:15868] [15] ./ex1 [0x8077291]
> > [vasia-desktop:15868] *** End of error message ***
> >
> > Any suggestions?
> >
> > Thanks,
> > Vasia.
> > Hotmail: Powerful Free email with security by Microsoft. Get it now.
> 
Vasia.
 		 	   		  
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