Properties🔗
- symmetric matrices
- run-time selectable preconditioner
- good parallel scaling
Usage🔗
solver PCG;
preconditioner <conditioner>;
relTol <relative tolerance>;
tolerance <tolerance>;
Details🔗
Operation🔗
Computation cost🔗
Start-up:
- 1 matrix-vector multiply
- 1 parallel reduction
Per iteration
- 1 matrix-vector multiply
- 3 parallel reductions
- and preconditioner - applied 1x
Further information🔗
Source code
API: