[petsc-dev] SEGV in hypre_BoomerAMGCycleT

[Jed Brown]

Useing Hypre-2.4.0b through PETSc's interface, I get the following

$ cd petsc/src/ksp/ksp/examples/tutorials
$ gdb -ex r --args ./ex2 -ksp_type cgne -pc_type hypre
No symbol table is loaded.  Use the "file" command.
Breakpoint 1 (PetscError) pending.
Reading symbols from /home/jed/petsc/src/ksp/ksp/examples/tutorials/ex2...done.
Starting program: /home/jed/petsc/src/ksp/ksp/examples/tutorials/ex2 -ksp_type cgne -pc_type hypre
[Thread debugging using libthread_db enabled]

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff783b7b8 in hypre_BoomerAMGCycleT (amg_vdata=0x851950, F_array=0x859b00, U_array=0x859bd0) at par_amg_solveT.c:432
432              relax_points =   grid_relax_points[cycle_param][j];
(gdb) p grid_relax_points 
$1 = (int **) 0x0
(gdb) bt
#0  0x00007ffff783b7b8 in hypre_BoomerAMGCycleT (amg_vdata=0x851950, F_array=0x859b00, U_array=0x859bd0) at par_amg_solveT.c:432
#1  0x00007ffff783b1c7 in hypre_BoomerAMGSolveT (amg_vdata=0x851950, A=0x850790, f=0x85b860, u=0x8589e0) at par_amg_solveT.c:203
#2  0x00007ffff782d263 in HYPRE_BoomerAMGSolveT (solver=0x851950, A=0x850790, b=0x85b860, x=0x8589e0) at HYPRE_parcsr_amg.c:94
#3  0x00007ffff772b5ff in PCApplyTranspose_HYPRE_BoomerAMG (pc=0x84f390, b=0x856f90, x=0x854150) at hypre.c:354
#4  0x00007ffff77c8540 in PCApplyTranspose (pc=0x84f390, x=0x856f90, y=0x854150) at precon.c:480
#5  0x00007ffff76c8f61 in KSPSolve_CGNE (ksp=0x8408e0) at cgne.c:113
#6  0x00007ffff776408f in KSPSolve (ksp=0x8408e0, b=0x7f8110, x=0x834d10) at itfunc.c:396
#7  0x0000000000402829 in main (argc=5, args=0x7fffffffd048) at ex2.c:196


Are we expected to do something special so that
amg_data->grid_relax_points is allocated?

Jed