Level 3 BLAS: matrix-matrix ops Node1 Level 3 BLAS: matrix -matrix ops Node3 gemm:           general matrix-matrix multiply Node1->Node3 Node4 gemmtr:         general matrix-matrix multiply with triangular output Node1->Node4 Node5 {he,sy}mm:      Hermitian /symmetric matrix-matrix multiply Node1->Node5 Node7 {he,sy}r2k:     Hermitian /symmetric rank-2k update Node1->Node7 Node6 {he,sy}rk:      Hermitian /symmetric rank-k update Node1->Node6 Node8 trmm:           triangular matrix-matrix multiply Node1->Node8 Node9 trsm:           triangular matrix-matrix solve Node1->Node9 Node2 BLAS Node2->Node1 .