Automatic |
The software selects the best equation solver (Intel
Direct Sparse or FFEPlus Iterative) based on the number of
equations, load cases, mesh type, geometric features, contact and
connector features, and available system memory. Some options and
conditions apply only to either the Intel Direct Sparse or FFEPlus
solver. |
Manual |
Select the solver to use for the
simulation. |
Direct sparse solver |
Selects the Direct Sparse solver. Activate the Direct
Sparse when you have enough RAM and multiple CPUs. For every 200,000 degrees of freedom, 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 make it more
efficient for large problems. For every 2,
000,000 degreed of freedom, 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 because of 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 multicore
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.
|