Escali 4.4 manual For timing

Section: 4.4 Using the scanalyze

user% SCAMPI_TIMING=”-s 10” mpimon ./all2all -- r1 r2

produced a 158642 byte file

Digesting the massive information in these files is a challenge, but scanalyze produces the following summaries for tracing:

	Count	Total	< 128	< 1k	< 8k	< 256k	< 1M
--------------- --------		-------- -------- -------- -------- -------- --------
MPI_Alltoall	24795	5127	3078	4104	10260	2226	0
MPI_Barrier	52	0	0	0	0	0	0
MPI_Comm_rank	2	0	0	0	0	0	0
MPI_Comm_size	2	0	0	0	0	0	0
MPI_Init	2	0	0	0	0	0	0
MPI_Keyval_free	2	0	0	0	0	0	0
MPI_Wtime	102	0	0	0	0	0	0
	Timing	Total	< 128	< 1k	< 8k	< 256k	< 1M
---------------MPI_Alltoall	--------	------- -------- -------- -------- -------- --------
	21.20	0.21	0.15	0.41	9.35	11.08	0.00
MPI_Barrier	0.01	0.00	0.00	0.00	0.00	0.00	0.00
MPI_Comm_rank	0.00	0.00	0.00	0.00	0.00	0.00	0.00
MPI_Comm_size	0.00	0.00	0.00	0.00	0.00	0.00	0.00
MPI_Init	2.00	0.00	0.00	0.00	0.00	0.00	0.00
MPI_Keyval_free	0.00	0.00	0.00	0.00	0.00	0.00	0.00
MPI_Wtime	0.00	0.00	0.00	0.00	0.00	0.00	0.00

and for timing;

=========================================================================

0: MPI_Alltoall	#calls	time	tim/cal	#calls	time	tim/cal
	0	0.0ns		12399	10.6s	855.1us
0: MPI_Barrier	0	0.0ns		26	1.2ms	45.8us
0: MPI_Comm_rank	0	0.0ns		1	3.2us	3.2us
0: MPI_Comm_size	0	0.0ns		1	1.4us	1.4us
0: MPI_Init	0	0.0ns	27.9us	1	1.0s	1.0s
0: MPI_Keyval_free	1	27.9us		1	27.9us	27.9us
0: MPI_Wtime	1	1.1us	1.1us	52	33.9us	652.7ns
0: Sum	2	29.0us	14.5us	12481	11.7s	933.5us
0: Overhead	0	0.0ns		12481	12.6ms	1.0us

=========================================================================

1: MPI_Alltoall	#calls	time	tim/cal	#calls	time	tim/cal
	0	0.0ns		12399	10.6s	854.9us
1: MPI_Barrier	0	0.0ns		26	2.9ms	109.6us
1: MPI_Comm_rank	0	0.0ns		1	3.5us	3.5us
1: MPI_Comm_size	0	0.0ns		1	1.5us	1.5us
1: MPI_Init	0	0.0ns	10.8us	1	1.0s	1.0s
1: MPI_Keyval_free	1	10.8us		1	10.8us	10.8us
1: MPI_Wtime	1	1.5us	1.5us	50	36.5us	730.2ns
1: Sum	2	12.3us	6.1us	12479	11.6s	931.1us
1: Overhead	0	0.0ns		12479	12.7ms	1.0us

Scali MPI Connect Release 4.4 Users Guide 44