Electronics and SoftwareEngineering Innovation
Beowulf Network Performance
BEAM Ltd
12/3/99
System
Component |
Part |
Processors |
Dual Pentium II 450Mhz |
RAM |
128MByte PC100 |
Ethernet |
SMC Etherpower II |
Software |
RedHat 5.2 |
Kernel |
2.0.36 |
EPIC_Driver |
1.07beam |
Switch |
Allied Telesyn AT-8118 1.3.1 |
Misc |
100Mbit/Duplex |
TCP/IP Network performance: Ping/pong of packets between nodes
Latency:
0.000074
Time |
Mbits/s |
Bits/Block |
Bytes/Block |
Variance |
0.000074 |
0.103730 |
8 |
1 |
0.000000 |
0.000074 |
0.207550 |
16 |
2 |
0.000000 |
0.000073 |
0.311627 |
24 |
3 |
0.000000 |
0.000073 |
0.416152 |
32 |
4 |
0.000000 |
0.000074 |
0.622776 |
48 |
6 |
0.000000 |
0.000074 |
0.825140 |
64 |
8 |
0.000000 |
0.000074 |
1.233757 |
96 |
12 |
0.000000 |
0.000075 |
1.326614 |
104 |
13 |
0.000000 |
0.000075 |
1.624838 |
128 |
16 |
0.000000 |
0.000075 |
1.921149 |
152 |
19 |
0.000000 |
0.000076 |
2.120486 |
168 |
21 |
0.000000 |
0.000076 |
2.401115 |
192 |
24 |
0.000000 |
0.000077 |
2.680031 |
216 |
27 |
0.000000 |
0.000077 |
2.866440 |
232 |
29 |
0.000000 |
0.000078 |
3.150072 |
256 |
32 |
0.000000 |
0.000078 |
3.413610 |
280 |
35 |
0.000000 |
0.000080 |
4.310863 |
360 |
45 |
0.000000 |
0.000081 |
4.548570 |
384 |
48 |
0.000000 |
0.000081 |
4.795854 |
408 |
51 |
0.000000 |
0.000083 |
5.602285 |
488 |
61 |
0.000000 |
0.000083 |
5.858418 |
512 |
64 |
0.000000 |
0.000084 |
6.082916 |
536 |
67 |
0.000000 |
0.000089 |
7.990913 |
744 |
93 |
0.000000 |
0.000089 |
8.196413 |
768 |
96 |
0.000000 |
0.000090 |
8.378104 |
792 |
99 |
0.000000 |
0.000095 |
10.058636 |
1000 |
125 |
0.000000 |
0.000096 |
10.209140 |
1024 |
128 |
0.000000 |
0.000096 |
10.385060 |
1048 |
131 |
0.000000 |
0.000106 |
13.605780 |
1512 |
189 |
0.000000 |
0.000107 |
13.744959 |
1536 |
192 |
0.000000 |
0.000107 |
13.867113 |
1560 |
195 |
0.000000 |
0.000118 |
16.363918 |
2024 |
253 |
0.000000 |
0.000118 |
16.540743 |
2048 |
256 |
0.000000 |
0.000119 |
16.653398 |
2072 |
259 |
0.000000 |
0.000141 |
20.580773 |
3048 |
381 |
0.000000 |
0.000142 |
20.636406 |
3072 |
384 |
0.000000 |
0.000143 |
20.647507 |
3096 |
387 |
0.000000 |
0.000164 |
23.636719 |
4072 |
509 |
0.000000 |
0.000165 |
23.697139 |
4096 |
512 |
0.000000 |
0.000166 |
23.680284 |
4120 |
515 |
0.000000 |
0.000209 |
27.866824 |
6120 |
765 |
0.000000 |
0.000210 |
27.924700 |
6144 |
768 |
0.000000 |
0.000211 |
27.943909 |
6168 |
771 |
0.000000 |
0.000255 |
30.496218 |
8168 |
1021 |
0.000000 |
0.000256 |
30.536154 |
8192 |
1024 |
0.000000 |
0.000256 |
30.566575 |
8216 |
1027 |
0.000000 |
0.000349 |
33.532896 |
12264 |
1533 |
0.000000 |
0.000348 |
33.688065 |
12288 |
1536 |
0.000000 |
0.000348 |
33.768699 |
12312 |
1539 |
0.000000 |
0.000370 |
42.183241 |
16360 |
2045 |
0.000000 |
0.000370 |
42.198929 |
16384 |
2048 |
0.000000 |
0.000371 |
42.186540 |
16408 |
2051 |
0.000000 |
0.000473 |
49.514615 |
24552 |
3069 |
0.000000 |
0.000473 |
49.566212 |
24576 |
3072 |
0.000000 |
0.000473 |
49.620434 |
24600 |
3075 |
0.000000 |
0.000552 |
56.586574 |
32744 |
4093 |
0.000000 |
0.000552 |
56.619587 |
32768 |
4096 |
0.000000 |
0.000553 |
56.599104 |
32792 |
4099 |
0.000000 |
0.000730 |
64.163854 |
49128 |
6141 |
0.000000 |
0.000730 |
64.196514 |
49152 |
6144 |
0.000000 |
0.000730 |
64.213206 |
49176 |
6147 |
0.000000 |
0.000895 |
69.806475 |
65512 |
8189 |
0.000000 |
0.000895 |
69.828478 |
65536 |
8192 |
0.000000 |
0.000896 |
69.806338 |
65560 |
8195 |
0.000000 |
0.001233 |
75.984921 |
98280 |
12285 |
0.000000 |
0.001234 |
75.996842 |
98304 |
12288 |
0.000000 |
0.001234 |
76.003096 |
98328 |
12291 |
0.000000 |
0.001612 |
77.521695 |
131048 |
16381 |
0.000000 |
0.001612 |
77.546241 |
131072 |
16384 |
0.000000 |
0.001612 |
77.551074 |
131096 |
16387 |
0.000000 |

TCP/IP Network performance: Streaming of packets between nodes
Latency:
0.000565
Time |
Mbits/s |
Bits/Block |
Bytes/Block |
Variance |
0.000565 |
0.013503 |
8 |
1 |
0.000000 |
0.000541 |
0.028205 |
16 |
2 |
0.000000 |
0.000559 |
0.040945 |
24 |
3 |
0.000000 |
0.000534 |
0.057149 |
32 |
4 |
0.000000 |
0.000565 |
0.081020 |
48 |
6 |
0.000000 |
0.000539 |
0.113238 |
64 |
8 |
0.000000 |
0.000550 |
0.166460 |
96 |
12 |
0.000000 |
0.000524 |
0.189279 |
104 |
13 |
0.000000 |
0.000540 |
0.226056 |
128 |
16 |
0.000000 |
0.000535 |
0.270950 |
152 |
19 |
0.000000 |
0.000539 |
0.297249 |
168 |
21 |
0.000000 |
0.000515 |
0.355545 |
192 |
24 |
0.000000 |
0.000521 |
0.395381 |
216 |
27 |
0.000000 |
0.000555 |
0.398653 |
232 |
29 |
0.000000 |
0.000549 |
0.444701 |
256 |
32 |
0.000000 |
0.000497 |
0.537281 |
280 |
35 |
0.000000 |
0.000552 |
0.621962 |
360 |
45 |
0.000000 |
0.000529 |
0.692270 |
384 |
48 |
0.000000 |
0.000551 |
0.706169 |
408 |
51 |
0.000000 |
0.000558 |
0.834038 |
488 |
61 |
0.000000 |
0.000542 |
0.900888 |
512 |
64 |
0.000000 |
0.000504 |
1.014225 |
536 |
67 |
0.000000 |
0.000259 |
2.739512 |
744 |
93 |
0.000000 |
0.000267 |
2.743153 |
768 |
96 |
0.000000 |
0.000282 |
2.678404 |
792 |
99 |
0.000000 |
0.000277 |
3.442868 |
1000 |
125 |
0.000000 |
0.000267 |
3.657537 |
1024 |
128 |
0.000000 |
0.000271 |
3.688010 |
1048 |
131 |
0.000000 |
0.000270 |
5.340576 |
1512 |
189 |
0.000000 |
0.000273 |
5.365728 |
1536 |
192 |
0.000000 |
0.000274 |
5.429679 |
1560 |
195 |
0.000000 |
0.000278 |
6.943298 |
2024 |
253 |
0.000000 |
0.000267 |
7.315075 |
2048 |
256 |
0.000000 |
0.000273 |
7.238144 |
2072 |
259 |
0.000000 |
0.000276 |
10.531882 |
3048 |
381 |
0.000000 |
0.000280 |
10.463170 |
3072 |
384 |
0.000000 |
0.000282 |
10.470127 |
3096 |
387 |
0.000000 |
0.000049 |
79.252282 |
4072 |
509 |
0.000000 |
0.000060 |
65.104167 |
4096 |
512 |
0.000000 |
0.000063 |
62.367273 |
4120 |
515 |
0.000000 |
0.000067 |
87.111744 |
6120 |
765 |
0.000000 |
0.000067 |
87.453358 |
6144 |
768 |
0.000000 |
0.000068 |
86.503870 |
6168 |
771 |
0.000000 |
0.000087 |
89.535768 |
8168 |
1021 |
0.000000 |
0.000087 |
89.798851 |
8192 |
1024 |
0.000000 |
0.000088 |
89.038502 |
8216 |
1027 |
0.000000 |
0.000174 |
67.217597 |
12264 |
1533 |
0.000000 |
0.000174 |
67.349138 |
12288 |
1536 |
0.000000 |
0.000147 |
79.875090 |
12312 |
1539 |
0.000000 |
0.000175 |
89.154925 |
16360 |
2045 |
0.000000 |
0.000175 |
89.285714 |
16384 |
2048 |
0.000000 |
0.000181 |
86.452421 |
16408 |
2051 |
0.000000 |
0.000262 |
89.368747 |
24552 |
3069 |
0.000000 |
0.000262 |
89.456107 |
24576 |
3072 |
0.000000 |
0.000262 |
89.543466 |
24600 |
3075 |
0.000000 |
0.000346 |
90.251768 |
32744 |
4093 |
0.000000 |
0.000346 |
90.317919 |
32768 |
4096 |
0.000000 |
0.000347 |
90.123597 |
32792 |
4099 |
0.000000 |
0.000520 |
90.100215 |
49128 |
6141 |
0.000000 |
0.000521 |
89.971209 |
49152 |
6144 |
0.000000 |
0.000520 |
90.188247 |
49176 |
6147 |
0.000000 |
0.000692 |
90.284844 |
65512 |
8189 |
0.000000 |
0.000692 |
90.317919 |
65536 |
8192 |
0.000000 |
0.000693 |
90.220618 |
65560 |
8195 |
0.000000 |
0.001038 |
90.295869 |
98280 |
12285 |
0.000000 |
0.001039 |
90.230991 |
98304 |
12288 |
0.000000 |
0.001039 |
90.253020 |
98328 |
12291 |
0.000000 |
0.001385 |
90.236182 |
131048 |
16381 |
0.000000 |
0.001385 |
90.252708 |
131072 |
16384 |
0.000000 |
0.001385 |
90.269233 |
131096 |
16387 |
0.000000 |
