File: timing_cmp_direct_iter_2d.gdat

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# square-n
# cg-iter sans precond: asymp en O(n^3)=O(N^1.5)
# mumps en O(n^2.25)=O(N^1.125)
# cg-iter avec precond mic0: asymp en O(n^2.5)=O(N^1.25) et plus petite cte ?
#  => meth iter devient interessante en 2d ?
# n	cg-iter		mumps_fac	mumps_sol	umfpack_tot	cholmod_tot
  40	  0.00282979  	  0.0146101 	 0.000816822    0.00716496	0.0154388
  80	  0.0149441 	  0.073535 	 0.00297904 	0.0468049	0.104896
 160	  0.108872	  0.417163 	 0.013027	0.353471	1.43207
 320 	  0.860483	  2.48603 	 0.0615819	2.87632		8.60481
 640	  8.78795	 15.3644         0.274312      25.7161	       76.3135
1280     75.0865	110.212 	 1.22439      226.163	      612.257