Properties🔗

• asymmetric matrices
• run-time selectable preconditioner
• good parallel scaling

Usage🔗

solver          PBiCG;
preconditioner  <conditioner>;
relTol          <relative tolerance>;
tolerance       <absolute tolerance>;

Details🔗

Operation🔗

Computation cost🔗

Start-up

• 2 matrix-vector multiplies
• 1 parallel reduction

Per iteration

• 2 matrix-vector multiplies
• 3 parallel reductions
• and preconditioner - applied 2x

Further information🔗

Source code:

• $FOAM_SRC/OpenFOAM/matrices/lduMatrix/solvers/PBiCG

API:

• Foam::PBiCG