[Trilinos-Users] Seg fault in AZ_manage_memory

[Kurtis Nusbaum]

Glen,

How big are your matrices? I was doing some work with Belos last year and
was getting similar errors, but I only got them when I had a large problem
size.

-Kurtis

On Sep 30, 2010 4:22 PM, "Glen Hansen" <glen.hansen at inl.gov> wrote:

All,

I am seeing a seg fault on a pretty large problem that is showing up in
AZ_manage_memory.

I am using ML as an approximate preconditioner inversion method and passing
the interface to my preconditioner to NOX::Epetra::LinearSystemAztecOO. I
get the following traceback from gdb:

Program received signal EXC_BAD_ACCESS, Could not access memory.
Reason: KERN_INVALID_ADDRESS at address: 0x00000000d3208ca8
0x00000001003b69d8 in AZ_manage_memory (input_size=2590485664, action=0,
type=-914901, name=0x7fff5fbfd2d0 "vblock in gmres0", status=0x7fff5fbfd36c)
at /Users/hansga/Codes/Trilinos/packages/aztecoo/src/az_util.c:991
991           temp->name = (char *)
&(dtmp[(aligned_str_mem+aligned_size)/
(gdb) where
#0  0x00000001003b69d8 in AZ_manage_memory (input_size=2590485664, action=0,
type=-914901, name=0x7fff5fbfd2d0 "vblock in gmres0", status=0x7fff5fbfd36c)
at /Users/hansga/Codes/Trilinos/packages/aztecoo/src/az_util.c:991
#1  0x00000001003c89f4 in AZ_pgmres (b=0x1138d2000, x=0x114526000,
weight=0x101124ed8, options=0x101124dd0, params=0x101124e90,
proc_config=0x101124d60, status=0x101124f80, Amat=0x10112cf70,
precond=0x10112d9e0, convergence_info=0x10112dd10) at
/Users/hansga/Codes/Trilinos/packages/aztecoo/src/az_gmres.c:232
#2  0x00000001003e09af in AZ_oldsolve (x=0x114526000, b=0x1138d2000,
options=0x101124dd0, params=0x101124e90, status=0x101124f80,
proc_config=0x101124d60, Amat=0x10112cf70, precond=0x10112d9e0,
scaling=0x10112dce0) at
/Users/hansga/Codes/Trilinos/packages/aztecoo/src/az_solve.c:540
#3  0x00000001003dfd6b in AZ_iterate (x=0x114526000, b=0x1138d2000,
options=0x101124dd0, params=0x101124e90, status=0x101124f80,
proc_config=0x101124d60, Amat=0x10112cf70, precond=0x10112d9e0, scaling=0x0)
at /Users/hansga/Codes/Trilinos/packages/aztecoo/src/az_solve.c:190
#4  0x000000010039b212 in AztecOO::Iterate (this=0x101124ab0, MaxIters=400,
Tolerance=0.0001) at
/Users/hansga/Codes/Trilinos/packages/aztecoo/src/AztecOO.cpp:912
#5  0x00000001000a9361 in
NOX::Epetra::LinearSystemAztecOO::applyJacobianInverse (this=0x1011246d0,
p=@0x108a9ad38, input=@0x101127510, result=@0x101127ea0) at
/Users/hansga/Codes/Trilinos/packages/nox/src-epetra/NOX_Epetra_LinearSystem_AztecOO.C:686
#6  0x000000010009d934 in NOX::Epetra::Group::applyJacobianInverse
(this=0x101126f30, p=@0x108a9ad38, input=@0x101127510, result=@0x101127ea0)
at
/Users/hansga/Codes/Trilinos/packages/nox/src-epetra/NOX_Epetra_Group.C:429
#7  0x000000010009d2e0 in NOX::Epetra::Group::computeNewton
(this=0x101126f30, p=@0x108a9ad38) at
/Users/hansga/Codes/Trilinos/packages/nox/src-epetra/NOX_Epetra_Group.C:353
#8  0x00000001000e0d19 in NOX::Direction::Newton::compute (this=0x10112c9f0,
dir=@0x10112c430, soln=@0x101126f30, solver=@0x10112aa70) at
/Users/hansga/Codes/Trilinos/packages/nox/src/NOX_Direction_Newton.C:127
#9  0x00000001000d83b2 in NOX::Direction::Generic::compute
(this=0x10112c9f0, d=@0x10112c430, g=@0x101126f30, s=@0x10112aa70) at
/Users/hansga/Codes/Trilinos/packages/nox/src/NOX_Direction_Generic.C:50
#10 0x00000001000e10c4 in NOX::Direction::Newton::compute (this=0x10112c9f0,
dir=@0x10112c430, soln=@0x101126f30, solver=@0x10112aa70) at
/Users/hansga/Codes/Trilinos/packages/nox/src/NOX_Direction_Newton.C:153
#11 0x00000001000f1dca in NOX::Solver::LineSearchBased::step
(this=0x10112aa70) at
/Users/hansga/Codes/Trilinos/packages/nox/src/NOX_Solver_LineSearchBased.C:165
#12 0x00000001000f2198 in NOX::Solver::LineSearchBased::solve
(this=0x10112aa70) at
/Users/hansga/Codes/Trilinos/packages/nox/src/NOX_Solver_LineSearchBased.C:224
#13 0x000000010002c7a8 in main (argc=2, argv=0x7fff5fbfeee8) at Mesh.C:335
Current language:  auto; currently c
(gdb)

Any thoughts on what might be happening to me?

Thanks!

Glen


-

**************************************************
Glen Hansen                               (208) 526-8494
Idaho National Laboratory
MS 3840                                                EROB 320
**************************************************







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