Magellan Final Report - Office of Science - U.S. Department of Energy
Magellan Final Report - Office of Science - U.S. Department of Energy
Magellan Final Report - Office of Science - U.S. Department of Energy
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<strong>Magellan</strong> <strong>Final</strong> <strong>Report</strong><br />
1.4 <br />
IB TCPoIB 10G -‐ TCPoEth Amazon CC 10G-‐ TCPoEth VM 1G-‐TCPoEth <br />
250 <br />
IB TCPoIB 10G -‐ TCPoEth Amazon CC 10G-‐ TCPoEth VM 1G-‐TCPoEth <br />
1.2 <br />
200 <br />
Naturally Ordered Bandwidth (GB/s) <br />
1 <br />
0.8 <br />
0.6 <br />
0.4 <br />
Natural Order Latency (us) <br />
150 <br />
100 <br />
50 <br />
0.2 <br />
0 <br />
32 64 128 256 512 1024 <br />
Number <strong>of</strong> Cores <br />
0 <br />
32 64 128 256 512 1024 <br />
Number <strong>of</strong> Cores <br />
(a) Naturally Ordered Ring Bandwidth<br />
(b) Naturally Ordered Ring Latency<br />
Figure 9.7: Measurements <strong>of</strong> naturally ordered ring (a) bandwidth and (b) latency as a function <strong>of</strong> core<br />
count for various interconnect technologies and protocols.<br />
0.45 <br />
IB TCPoIB 10G -‐ TCPoEth Amazon CC 10G-‐ TCPoEth VM 1G-‐TCPoEth <br />
500 <br />
IB TCPoIB 10G -‐ TCPoEth Amazon CC 10G-‐ TCPoEth VM 1G-‐TCPoEth <br />
0.4 <br />
450 <br />
0.35 <br />
400 <br />
Random Order Bandwidth(GB/s) <br />
0.3 <br />
0.25 <br />
0.2 <br />
0.15 <br />
Random Order Latency (us) <br />
350 <br />
300 <br />
250 <br />
200 <br />
150 <br />
0.1 <br />
100 <br />
0.05 <br />
50 <br />
0 <br />
32 64 128 256 512 1024 <br />
Number <strong>of</strong> Cores <br />
0 <br />
32 64 128 256 512 1024 <br />
Number <strong>of</strong> Cores <br />
(a) Random Ring Bandwidth<br />
(b) Random Ring Latency<br />
Figure 9.8: Measurements <strong>of</strong> random ring (a) bandwidth and (b) latency as a function <strong>of</strong> core count for<br />
various interconnect technologies and protocols.<br />
57
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