Some benchmarks done with the software correlator
====== SFXC performance======
A couple of test performed on the adam cluster (6 nodes with one dual-core opteron 246 each).
{{:scarie:all.png?direct|}}
A) The correlation time as a function of the number of channels {{:scarie:channel_bench.pdf|pdf}}.\\
B) The correlation time as a function of the number of the number of stations {{:scarie:stations_bench.pdf|pdf}}.\\
C) The correlation time as a function of the number of CPU cores {{:scarie:core_bench.pdf|pdf}}.\\
====== SFXV VS DiFX ======
Some benchmarks comparing the performance of SFXC and DiFX, the benchmarks were performed on Adam.
| ^ SFXC ^ DiFX ^
^ 7 stations @ 256 Mb/s (1m data)1 | 11m028s | 11m07s |
^ 4 stations @ 256 Mb/s (1m data)1 | 5m03s | 4m41s |
^ 6 stations @ 128 Mb/s (40s data)2 | 4m29s | 6m14s |
1 Data from experiment N08C1 (2 bits, 2 polarizations, 8 channels @256 Mb/s)\\
2 Data from experiment RDV70 (1 bits, 1 polarization, 8 channels @128 Mb/s)