mnz(L) flops nit T(s) A 542,184 64,785,843 52,242,136,069 3 3.8672 Apost 542,184 64,785,843 52,242,136,069 3 4.4576 Aamd 542,184 12,720,302 8,395,899,568 13 0.8320 Arcm 542,184 43,696,522 26,530,498,454 4 2.9529 Table: Experiment results of A, Apost , Aamd and Arcm matrices. ▶ A: Sparse Matrix. ▶ Apost : Sparse Matrix permutated according Ordered Tree Elimination (etree). ▶ Aamd : Sparse Matrix permutated according with Approximate Minimum Degree (AMD) method. ▶ Arcm : Sparse Matrix permutated using Symmetric reverse Cuthill-McKee (SymRCM) method. ▶ T(s): Average Time in seconds. ▶ nit: Number of running times. 12 / 20