KSPFCDTruncationType#

Define how stored directions are used to orthogonalize in flexible conjugate directions (FCD) methods

Synopsis#

typedef enum {
  KSP_FCD_TRUNC_TYPE_STANDARD,
  KSP_FCD_TRUNC_TYPE_NOTAY
} KSPFCDTruncationType;

Values#

KSP_FCD_TRUNC_TYPE_STANDARD - uses all (up to mmax) stored directions
KSP_FCD_TRUNC_TYPE_NOTAY - uses the last max(1,mod(i,mmax)) stored directions at iteration i=0,1..

See Also#

KSP: Linear System Solvers, KSP, KSPFCG, KSPPIPEFCG, KSPPIPEGCR, KSPFCGSetTruncationType(), KSPFCGGetTruncationType()

Level#

intermediate

Location#

include/petscksp.h

Index of all KSP routines
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Index of all manual pages