Slicer:benchmarks

Introduction

The timings below were generated on various machines using a simple benchmarking utility in slicer (bench.tcl). The goal was to look at performance scaling for multi-threaded processing.

The machines used were:

• localhost.localdomain: an 8 processor Opteron system with 128 Gig of RAM made available for testing by Thinkmate
• mimer.local: a 2 processor G5 PowerMac
• forest: a 10 processor SunFire
• vision: a 6 processor Sun
• rock: a 3.4 gigahertz pentium 4 dell XPS laptop (one processor - two thread timings use 'hyper threading')
• deuce: a dual processor opteron
• glider: a dual processor xeon (with hyperthreading to get 4 threads)

Times in the boxes are in seconds.

Results generated with blur.tcl. Gaussian smoothing with local memory access.

blur

blur

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	% 2 Threads	% Max Threads
deuce	10.07	5.16															51.27	51.27
forest	73.14	35.51	24.04	18.26	14.83	12.33	10.66	10.02	8.22	8.17							48.55	11.17
glider.bwh.harvard.edu	15.26	9.48	8.42	7.88													62.14	51.67
localhost.localdomain	15.41	8.11	5.76	4.86	4.02	3.61	3.53	3.37									52.67	21.85
mimer.local	24.94	15.45															61.94	61.94
rock	13.61	11.69															85.88	85.88
vision	62.86	30.03	20.00	15.38	12.43	11.20											47.77	17.81
pcs4everyone16.localdomain	9.59	7.45	4.76	3.58	3.11	2.91	2.64	2.48	2.70	2.33	2.53	2.19	2.29	2.34	2.06	2.49	77.70	25.98

axflip

Results generated with axflip.tcl. Image reslicing with cubic interpolation and non-local memory access.

axflip

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	% 2 Threads	% Max Threads
deuce	13.64	6.95															50.91	50.91
forest	108.78	52.59	45.67	32.97	28.55	23.23	20.45	17.57	15.79	14.26							48.35	13.10
glider.bwh.harvard.edu	16.72	8.72	9.45	7.72													52.17	46.15
localhost.localdomain	13.98	7.29	6.93	5.11	4.61	4.33	3.68	2.75									52.18	19.69
mimer.local	32.76	17.31															52.82	52.82
rock	20.09	17.36															86.39	86.39
vision	92.14	44.53	38.64	27.92	24.20	20.02											48.33	21.73
pcs4everyone16.localdomain	6.56	3.28	3.03	2.15	1.92	1.57	1.33	1.17	1.09	1.01	0.95	0.87	0.81	0.78	0.76	0.75	49.94	11.50