Automatic Solver Selection |
The software selects the solver based on the study type, analysis options, contact conditions, etc. Some options and conditions apply only to either Direct Sparse or FFEPlus.
|
Direct sparse solver |
Selects the Direct Sparse solver. Activate the Direct Sparse
when you have enough RAM and multiple CPUs. For every 200,000 dof, you need 1GB of RAM for linear static
analysis. The Direct sparse solver requires 10 times more RAM
than the FFEPlus solver.
|
FFEPlus |
Selects the FFEPlus solver to run the study. This solver uses
advanced matrix reordering techniques that makes it more efficient
for large problems. For every 2, 000,000 dof,
you need 1GB of RAM.
|
Large Problem Direct Sparse |
By leveraging enhanced memory-allocation algorithms, the Large Problem Direct Sparse solver can handle simulation problems that exceed the physical memory of your computer.
If you initially select the Direct Sparse
solver and due to limited memory resources it has reached an
out-of-core solution, a warning message alerts you to switch to
the Large Problem Direct
Sparse.
|
Intel Direct Sparse |
The Intel Direct Sparse solver is
available for static, thermal, frequency, linear dynamic, and
nonlinear studies. By leveraging enhanced memory-allocation
algorithms and multi-core processing capability, the
Intel Direct Sparse solver improves solution speeds
for simulation problems that are solved in-core. The Direct Sparse and Intel Direct Sparse
solvers are more efficient at taking advantage of multiple
cores.
|