Finite Element Assembly Using an Embedded Domain Specific Language

Table 2

Linear system assembly times (wall clock time and timing relative to Manual) for the Poisson problem on the unit square, using first order triangle shape functions on a 1000 × 1000 grid.

	Dummy matrix		Epetra matrix
	Wall clock (s)	Relative	Wall clock (s)	Relative
Proto	0.32	5.93	0.61	1.79
Proto specialized	0.069	1.27	0.35	1.03
Manual	0.054	1	0.34	1
Virtual	2.82	52.2	3.18	9.35
DOLFIN	0.31	5.74	1.13	3.32