g20.out

SuperLU 2.2版本。对大型、稀疏、非对称的线性系统的直接求解

	Process grid	1 X 1
	Dimension	400x400	 # nonzeros 1920
	Process grid	1 X 1
.. equilibrated? *equed = N
.. LDPERM job 5	 time: 0.00
.. anorm 2.000000e+00
.. Use parMETIS ordering on A'+A with 1 sub-domains.
	Max szBlk          60
	Parameters: fill mem 5 fill pelt 5
	Nonzeros in L       4012
	Nonzeros in U       3612
	nonzeros in L+U-I   7624
	No of supers   306
	Size of G(L)   2342
	Size of G(U)   2036
	Size of G(L+U) 4378
	ParSYMBfact (MB)      :	L\U MAX 0.04	AVG 0.04
	SYMBfact time: 0.00
.. # L blocks 1304	# U blocks 998
	DISTRIBUTE time        0.00
.. thresh = s_eps 5.960464e-08 * anorm 2.000000e+00 = 1.192093e-07
.. Buffer size: Lsub 37	Lval 961	Usub 63	Uval 200	LDA 31
	NUMfact (MB) all PEs:	L\U	0.12	all	0.16
	All space (MB):		total	0.16	Avg	0.16	Max	0.16
	Number of tiny pivots:          0
( 0) .. Step  0: berr[j] = 2.220446e-16
( 0) .. Step  1: berr[j] = 2.220446e-16
.. DiagScale = 3
	Sol  0: ||X-Xtrue||/||X|| = 1.332268e-15
	EQUIL time             0.00
	ROWPERM time           0.00
	COLPERM time           0.02
	SYMBFACT time          0.00
	DISTRIBUTE time        0.00
	FACTOR time            0.00
	Factor flops	1.125840e+05	Mflops 	   30.81
	SOLVE time             0.00
	Solve flops	1.719000e+04	Mflops 	    4.29
	REFINEMENT time        0.00	Steps       1