LDL: Hermitian/symmetric indefinite matrix, driver Node4 {he,sy}sv:      rook (v1) Node13 {he,sy}sv_aa:   Aasen Node14 {he,sy}sv_aa_2stage :  Aasen, blocked 2-stage Node12 — full, Aasen — Node3 — full, rook pivoting — Node1 LDL: Hermitian/symmetric indefinite matrix, driver Node1->Node4 Node1->Node13 Node1->Node14 Node1->Node12 Node1->Node3 Node6 {he,sy}sv_rk:   rook (v3) Node1->Node6 Node5 {he,sy}sv_rook: rook (v2) Node1->Node5 Node7 {he,sy}svx:     rook (v1, expert) Node1->Node7 Node8 {he,sy}svxx:    rook (v1, expert) Node1->Node8 Node10 {hp,sp}sv:      factor and solve Node1->Node10 Node9 — packed, rook pivoting — Node1->Node9 Node11 {hp,sp}svx:     factor and solve, expert Node1->Node11 Node2 Linear solve, AX = B Node2->Node1 .