Transcript FDS 5.5.1 Speed test

FDS 5.5.1 Speed test
(Windows 2008 R2 Datacenter +
Mpich2-1.2.1p1-win-x86-64)
Comparison between XEON and Opetron
Author: Bartlomiej Woznica
[email protected]
www.stawoz.pl
Tested Systems:
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DELL R815
4x AMD Opetron 6174 2.2 GHz (12MB cache)
PERC 7, 4x SAS 146 GB300GB 10k rpm (RAID 5)
128 GB RAM DDR3 1333MHz (32x4GB)
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DELL R910
4x [email protected] 24M cache
256 GB RAM DDR3 1066MHz (64x4GB)
PERC H700, 2x SAS 300GB 10k rpm (RAID 0)
FDS input
for servers
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Total dimension 16m x 16m x 12m
Grid 3.3(3) cm
82 944 000 cells total
48 MESHes for AMD
64 and 32 (without HT) MESHes for XEON
Simulation time 60 sec
HRRPUA 1000 kw (&RAMP 0s=0.1, 10s=0.8,40s=1)
Output: slice, devc and isof
&REAC ID = 'wood' VISIBILITY_FACTOR=8 SOOT_YIELD = 0.017 C = 8. O=4 N=0
HEAT_OF_COMBUSTION = 23000. IDEAL = .TRUE. H = 9.
Full input files: www.stawoz.pl/FDS_speed_test.zip
4xXEON HT ON (64 Threads)
• 64 MESHes
• 1 MESH is 4m x 4m x 3m
• Number if cells in one MESH:
120x120x90 = 1 296 000
• Total number of cells: 82 944 000
• One cell is 3.3(3) cm x 3.3(3) cm x 3.3(3) cm
4xXEON HT ON (64 Threads)
• Memory allocation:
• Time Steps: 24427
• Total Elapsed Wall Clock Time (s):
600717.197 (166h 51m)
4xXEON HT OFF (32 Threads)
• 32 MESHes
• 1 MESH is 4m x 4m x 6m
• Number if cells in one MESH:
120x120x180 = 2 592 000
• Total number of cells: 82 944 000
• One cell is 3.3(3) cm x 3.3(3) cm x 3.3(3) cm
4xXEON HT OFF (32 Threads)
• Memory allocation: 69 802.8 MB RAM
• Time Steps: 24035
• Total Elapsed Wall Clock Time (s): 532766.925
(148h)
4xOpetron (48 Threads)
• 48 MESHes
• 1 MESH is 4m x 4m x 4m
• Number if cells in one MESH:
120x120x120 = 1 728 000
• Total number of cells: 82 944 000
• One cell is 3.3(3) cm x 3.3(3) cm x 3.3(3) cm
4xOpetron (48 Threads)
• Memory allocation: 77 722.8 MB
• Time Steps: 24162
• Total Elapsed Wall Clock Time (s): 748243
(207h)
Summary
Time [h]
HT on
Time [h]
Time [s]
Steps:
Time [s] / 1 step
HT off
AMD
167
148
207
600717 532766 748243
24427
24035
24162
24.59234 22.16626 30.96776
250
200
150
Time [h]
100
50
Time [s] / 1 step
0
HT on
HT off
AMD
Time [s]
35
30
25
20
Time [s] / 1 step
15
10
5
0
HT on
HT off
AMD
800000
700000
600000
500000
400000
300000
200000
100000
0
Time [s]
HT on
HT off
AMD