PCAIRZType

The type of grid-transfer (restriction) operator built by PCAIR

Synopsis

typedef enum {
   AIR_Z_PRODUCT,
   AIR_Z_LAIR,
   AIR_Z_LAIR_SAI,
}  PCAIRZType;

Values

• AIR_Z_PRODUCT - approximate ideal restriction built from a matrix product (gives AIRG when combined with a polynomial inverse type)

• AIR_Z_LAIR - local approximate ideal restriction (lAIR)

• AIR_Z_LAIR_SAI - local approximate ideal restriction built with a sparse approximate inverse

Note

Together with PCAIRSetInverseType() this selects the reduction multigrid method: for example product + arnoldi gives AIRG, and lair + wjacobi gives lAIR.

See Also

KSP: Linear System Solvers, PCAIR, PCAIRSetZType(), PCAIRGetZType(), PCAIRSetInverseType(), PCAIRSetLairDistance()

Level

intermediate

Index of all PC routines
Table of Contents for all manual pages
Index of all manual pages