COMSOL Multiphysics™

TABLE 2-5: SOLVER ERROR MESSAGES
ERROR NUMBER ERROR MESSAGE EXPLANATION
7144 Out of memory in adaptive solver The adaptive solver ran out of memory. The
adaptive mesh refinement has generated a
too fine mesh. In general, when you run out
of memory, try to use memory-efficient
modeling techniques such as utilizing
symmetries, solving models sequentially, and
selecting memory efficient solvers. See the
section “Solving Large-Scale Problems” in
the COMSOL Multiphysics User’s Guide for more
information. See also the COMSOL Installation
Guide for information about system memory
management.
7145 Out of memory in eigenvalue solver The eigenvalue solver ran out of memory.
See error 7144 regarding general
memory-saving tips.
7146 Out of memory in stationary solver The stationary solver ran out of memory.
See error 7144 regarding general
memory-saving tips.
7147 Out of memory in time-dependent solver The time-dependent solver ran out of
memory. See error 7144 regarding general
memory-saving tips.
7165 Incomplete LU back substitution failed The stiffness matrix (Jacobian matrix) is
singular or almost singular, which leads to
undefined operations in the Incomplete LU
preconditioner’s back substitution.
7192 Invalid degree of freedom name in manual
scaling
The name of a dependent variable in the
Manual scaling edit field on the Advanced
page in the Solver Parameters dialog box
does not match any of the dependent
variables in the model.
418 | CHAPTER 2: DIAGNOSTICS