wiki:access/aps2_access_c_background

Operational City Model ACCESS-C: aps2_access_c

APS2 ACCESS-C has spatial resolution of 1.5km and vertical resolution of 70 levels. It runs out to 42 hours

and 4 times daily, 00Z, 06Z, 12Z and 18Z (UTC). ACCESS-C nests within ACCESS-R (Australia Regional model

with 12km spatial resolution) for the initial condition and lateral boundary condition.


The six domains, BN, SY, VT, AD, PH, DN, for Brisbane, Sydney, Melbourne-Hobart, Adelaide, Perth and

Darwin, are detailed in the following table,

City Domain Lat. Range Lon. Range Grids Res. fcst_hrs
Brisbane BN -31.0S, -22.0S 148.00E, 156.0E 668X594 1.5km 42
Sydney SY -38.0S, -30.0S 147.00E, 155.0E 594X594 1.5km 42
VicTas VT -46.0S, -33.0S 139.00E, 151.0E 964X890 1.5km 42
Adelaide AD -39.5S, -29.5S 132.00E, 142.0E 742X742 1.5km 42
Perth PH -37.0S, -28.0S 112.00E, 123.0E 668X816 1.5km 42
Darwin DN -16.0S, -8.0S 128.50E, 140.0E 594X852 1.5km 42


The decomposition and wall-clock times for each domain are listed in the following tables for your reference,

BN

Decomposition Total Cores Best Time
18X21 378 3460
24X24 576 2387
28X28 784 1838
34X33 1122 1423

SY

Decomposition Total Cores Best Time
18X22396 3216
22X26572 2390
28X28784 1879
34X331122 1481

VT (Ilia)

Decomposition Total Cores Best Time
32x36 1152 3404
32x42 1344 3246
32x48 1536 2764
40x48 1920 2437

AD

Decomposition Total Cores Best Time
22X28616 3400
22X36792 2764
32X31992 2333
32X381216 2038

PH

Decomposition Total Cores Best Time
22X28 616 3260
28X28 784 2696
42X24 1008 2245
36X34 1224 1939

DN

Decomposition Total Cores Best Time
22X27 594 3210
34X22 748 2697
32X30 960 2229
36X34 1224 1896

Note:Best Time is the shortest time in seconds from 3 runs with full IO and exclusive nodes with run hours=36 on BoM HPC ngamai.


The data usage is detailed as follows,

Domain IC LBC pa pb pc pd pe pf pg pj
BN 4.6 4.2 2 161M 2 738M 8.8 650M 15 1.5
SY 4.1 3.9 1.8 147M 1.9 771M 8.2 2.1 21 1.5
VT 9.8 6.1 4.2 347M 4.4 2 20 3.8 45 3.2
AD 6.4 4.9 2.7 222M 2.8 1.2 12 1.6 25 2
PH 6.3 4.9 2.7 214M 2.6 1.1 12 2.6 31 2
DN 5.8 4.8 2.4 198M 2.2 841M 9.9 506M 17 1.7

Note: All data is in GBytes excpet those ending with M in MBytes.


The topography of six domains is displayed as below for reference: From top to bottom and left to right,

BN, SY, VT, AD, PH and DN

Note: The aspect ratio is not in line with the actual one.




Last modified 5 years ago Last modified on Apr 17, 2015 5:14:11 PM

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