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

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Index of all KSP routines
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