Please send questions like this to the mailing list, which I have cc'ed. This backtrace by itself is unfortunately useless. Which machine is that? Which architecture? Which MPI? Which compiler did you use to compile PETSc, petsc4py, the extension modules? Which versions of PETSc, petsc4py, Firedrake, PyOP2 are you using? What are you running? Have you successfully run the PETSc tests on that machine? Florian P.S.: Lawrence's Edinburgh email address is no longer active, you should update your address book On 07/10/14 15:49, Bercea, Gheorghe-teodor wrote:

Hi Lawrence, Florian,

I am having trouble installing firedrake on the LLNL computers, I followed all the steps online but when i want to import dmplex then I get a segfault. GDB gives the following backtrace: #0 __strncpy_ssse3 () at ../sysdeps/x86_64/multiarch/strcpy.S:94 #1 0x00002aaaad6b1080 in MPID_VIA_Init (argc=<value optimized out>, argv=0x2aaaac3dcd28, size=0x2aaaad8e7230, rank=0x2aaaad8e7234) at /usr/local/tools/mvapich-gnu-1.2/src/mpid/ch_smp/viainit.c:137 #2 0x00002aaaad68de4c in MPID_Init (argc=0x2aaaac3dcd24, argv=0x2aaaac3dcd28, config=<value optimized out>, error_code=0x7fffffff558c) at mpid_init.c:66 #3 0x00002aaaad67b1cc in MPIR_Init (argc=0x2aaaac3dcd24, argv=0x2aaaac3dcd28) at initutil.c:355 #4 0x00002aaaac4e8e85 in PetscInitialize () from /g/g90/bercea1/.local/lib/python2.7/site-packages/petsc/lib/libpetsc.so.3.05 #5 0x00002aaaac10f638 in __pyx_f_8petsc4py_5PETSc_initialize (__pyx_v_args=<value optimized out>, __pyx_v_comm=0x77e800) at src/petsc4py.PETSc.c:216152 #6 0x00002aaaac1108b9 in __pyx_pf_8petsc4py_5PETSc__initialize (__pyx_self=<value optimized out>, __pyx_args=<value optimized out>, __pyx_kwds=<value optimized out>) at src/petsc4py.PETSc.c:216630 #7 __pyx_pw_8petsc4py_5PETSc_1_initialize (__pyx_self=<value optimized out>, __pyx_args=<value optimized out>, __pyx_kwds=<value optimized out>) at src/petsc4py.PETSc.c:19970 #8 0x00000000004a6c93 in call_function (f=<value optimized out>, throwflag=<value optimized out>) at Python/ceval.c:4012 #9 PyEval_EvalFrameEx (f=<value optimized out>, throwflag=<value optimized out>) at Python/ceval.c:2665 #10 0x00000000004a8767 in PyEval_EvalCodeEx (co=0x8cd8b0, globals=<value optimized out>, locals=<value optimized out>, args=<value optimized out>, argcount=1, kws=0x93c2b8, kwcount=0, defs=0x8ac748, defcount=3, closure=0x0) at Python/ceval.c:3252 #11 0x00000000004a695e in fast_function (f=<value optimized out>, throwflag=<value optimized out>) at Python/ceval.c:4108 #12 call_function (f=<value optimized out>, throwflag=<value optimized out>) at Python/ceval.c:4033 …

I can't work out why this is happening, have you got any ideas?

Cheers,

--Doru