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<span class="Apple-style-span" style="font-family: Tahoma, Verdana, Arial, sans-serif; color: rgb(68, 68, 68); ">Hello.<br>I use MatGetFactor(), MatCholeskyFactorSymbolic() and MatCholeskyFactorNumeric() with Pastix solver in an iterative loop in order to solve a system.<br>The program behaves as desired when using a matrix of size 118x118 and solves the system after 7 iterations.<br>When using a matrix of size 1000x1000, the program crashes at the 2nd iteration just after calling MatCholeskyFactorNumeric().<br>The message I get is: <br><br>[0]PETSC ERROR: [0] MatFactorNumeric_PASTIX line 347 src/mat/impls/aij/mpi/pastix/pastix.c<br>[0]PETSC ERROR: [0] MatCholeskyFactorNumeric line 2517 src/mat/interface/matrix.c<br>[0]PETSC ERROR: --------------------- Error Message ------------------------------------<br>[0]PETSC ERROR: Signal received!<br><br>Option -start_in_debugger gives me the following output:<br><br>[1]PETSC ERROR: MPI error 15<br>[vasia-desktop:15869] *** Process received signal ***<br>[vasia-desktop:15869] Signal: Aborted (6)<br>[vasia-desktop:15869] Signal code: (-6)<br>[vasia-desktop:15869] [ 0] [0xb7eeb440]<br>[vasia-desktop:15869] [ 1] /lib/tls/i686/cmov/libc.so.6(abort+0x101) [0xb7b4ea01]<br>[vasia-desktop:15869] [ 2] ./ex1(Petsc_MPI_DebuggerOnError+0) [0x843d50e]<br>[vasia-desktop:15869] [ 3] /usr/lib/libmpi.so.0(ompi_errhandler_invoke+0x113) [0xb7e773e3]<br>[vasia-desktop:15869] [ 4] /usr/lib/libmpi.so.0(MPI_Recv+0x1b5) [0xb7eac125]<br>[vasia-desktop:15869] [ 5] ./ex1(Dreceive_one_fanin+0x8e) [0x849aa05]<br>[vasia-desktop:15869] [ 6] ./ex1(Dwait_contrib_comp_1d+0x43) [0x84a69f9]<br>[vasia-desktop:15869] [ 7] ./ex1(Dsopalin_smp+0x2be) [0x84a6d6f]<br>[vasia-desktop:15869] [ 8] /lib/tls/i686/cmov/libpthread.so.0 [0xb7d6d4fb]<br>[vasia-desktop:15869] [ 9] /lib/tls/i686/cmov/libc.so.6(clone+0x5e) [0xb7bf8e5e]<br>[vasia-desktop:15869] *** End of error message ***<br>.<br>.<br>.<br>[vasia-desktop:15868] *** Process received signal ***<br>[vasia-desktop:15868] Signal: Aborted (6)<br>[vasia-desktop:15868] Signal code: (-6)<br>[vasia-desktop:15868] [ 0] [0xb7fdd440]<br>[vasia-desktop:15868] [ 1] /lib/tls/i686/cmov/libc.so.6(abort+0x101) [0xb7c40a01]<br>[vasia-desktop:15868] [ 2] ./ex1 [0x848d825]<br>[vasia-desktop:15868] [ 3] ./ex1(PetscError+0x317) [0x840d5c9]<br>[vasia-desktop:15868] [ 4] ./ex1(PetscDefaultSignalHandler+0x3b4) [0x848e32f]<br>[vasia-desktop:15868] [ 5] ./ex1 [0x848df5b]<br>[vasia-desktop:15868] [ 6] [0xb7fdd420]<br>[vasia-desktop:15868] [ 7] ./ex1(sopalin_launch_thread+0x560) [0x84c8c70]<br>[vasia-desktop:15868] [ 8] ./ex1(Dsopalin_thread+0x168) [0x84a745e]<br>[vasia-desktop:15868] [ 9] ./ex1(pastix_task_sopalin+0x52b) [0x8497f1b]<br>[vasia-desktop:15868] [10] ./ex1(pastix+0x261) [0x8499804]<br>[vasia-desktop:15868] [11] ./ex1(MatFactorNumeric_PaStiX+0xff6) [0x817777c]<br>[vasia-desktop:15868] [12] ./ex1(MatCholeskyFactorNumeric+0x760) [0x80957d4]<br>[vasia-desktop:15868] [13] ./ex1(main+0x3a01) [0x807e5f9]<br>[vasia-desktop:15868] [14] /lib/tls/i686/cmov/libc.so.6(__libc_start_main+0xe0) [0xb7c2a450]<br>[vasia-desktop:15868] [15] ./ex1 [0x8077291]<br>[vasia-desktop:15868] *** End of error message ***<br><br>Any suggestions?<br><br>Thanks,<br>Vasia.</span> <br /><hr />Hotmail: Powerful Free email with security by Microsoft. <a href='https://signup.live.com/signup.aspx?id=60969' target='_new'>Get it now.</a></body>
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