petsc-3.12.5 2020-03-29
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;
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
: KSPFCG,KSPPIPEFCG,KSPPIPEGCR,KSPFCGSetTruncationType(),KSPFCGGetTruncationType()
Level
intermediate
Location
src/ksp/ksp/guess/../../../../include/petscksp.h
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages