[Wien] Bemchmark

[Laurence Marks]

Dual Quad-Core  E5410  @ 2.33GHz 1333 FSB
8GB 667MHz DDR2 FB-DIMM
Infiniband (more than fast enough, WALL=CPU within delta)
Adjacent Cache Line Prefetch Enabled (might not be best, not sure)
ifort 10.1.015 mkl 10.0.2.018
Blocksize = 64

Serial benchmark
Jobs/Node  Threads   Time
1                    8        53.58
2		     4        85.37
4		     2      138.03
8		     1      274.03

MPI benchmark
Jobs/Node  Nodes      Time
 1                 8          296.4
 2                 4          298.4
 4                 2          406.2
 4                 4          222.3
 4                 8          150.8
 8                 1          613.5
 8                 8          136.8

Run serial, 1 Job 8 Threads 764.58 (25% slower than mpi)

first number: jobs/node; 2nd number: nodes
Run_1_1: TIME HAMILT (CPU)  = 212.5, HNS = 229.9, HORB =   0.0, DIAG =  1589.8
Run_1_1: TOTAL CPU       TIME:   2034.4 (INIT =    2.1 + K-POINTS = 2032.3)
Run_1_8: TIME HAMILT (CPU)  =  31.8, HNS =  30.6, HORB =   0.0, DIAG = 231.4
Run_1_8: TOTAL CPU       TIME:    296.4 (INIT =    2.1 + K-POINTS =  294.3)
Run_2_4: TIME HAMILT (CPU)  =  32.4, HNS =  31.0, HORB =   0.0, DIAG = 232.8
Run_2_4: TOTAL CPU       TIME:    298.4 (INIT =    2.1 + K-POINTS =  296.4)
Run_4_2: TIME HAMILT (CPU)  =  34.8, HNS =  38.2, HORB =   0.0, DIAG = 331.0
Run_4_2: TOTAL CPU       TIME:    406.2 (INIT =    2.1 + K-POINTS =  404.1)
Run_4_4: TIME HAMILT (CPU)  =  18.0, HNS =  21.0, HORB =   0.0, DIAG = 181.0
Run_4_4: TOTAL CPU       TIME:    222.3 (INIT =    2.1 + K-POINTS =  220.2)
Run_4_8: TIME HAMILT (CPU)  =  10.7, HNS =  10.5, HORB =   0.0, DIAG = 127.3
Run_4_8: TOTAL CPU       TIME:    150.8 (INIT =    2.1 + K-POINTS =  148.7)
Run_8_1: TIME HAMILT (CPU)  =  39.4, HNS =  68.6, HORB =   0.0, DIAG = 503.3
Run_8_1: TOTAL CPU       TIME:    613.5 (INIT =    2.1 + K-POINTS =  611.5)
Run_8_8: TIME HAMILT (CPU)  =   7.0, HNS =   9.6, HORB =   0.0, DIAG = 117.9
Run_8_8: TOTAL CPU       TIME:    136.8 (INIT =    2.1 + K-POINTS =  134.8)

-- 
Laurence Marks
Department of Materials Science and Engineering
MSE Rm 2036 Cook Hall
2220 N Campus Drive
Northwestern University
Evanston, IL 60208, USA
Tel: (847) 491-3996 Fax: (847) 491-7820
email: L-marks at northwestern dot edu
Web: www.numis.northwestern.edu
Commission on Electron Diffraction of IUCR
www.numis.northwestern.edu/IUCR_CED