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发表于 2007-9-9 08:48:15
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http://einstein.phys.uwm.edu/for ... p;nowrap=true#74093
A new run, S5R3, will follow S5R2.
We're still preparing this and not all decisions are final yet, but the current state is this:
- It will use the same data set as S5R1 from S5 up to Jan 2007. In principle more data gives us more sensitivity, but we decided to wait for the end of S5 so we can pre-process and analyze all of the S5 data (a full year netto!).
- It will cover a different, wider range of frequencies than S5R2 (up to about 800 Hz)
- Instead of juggling with tiny frequency ranges as we do now we will probably also split up the sky between workunits. This may give a somewhat odd movement of the direction marker in the screensaver graphics, but will gives us better control of computing overhead an the length of the workunits. It will even make the post-processing rather easier than harder.
S5R4 is already being thought on. It will probably cover the whole of S5 data, and should then (again) be the most sensitive search ever performed for gravitational waves.
It seems the cross-platform differences (observable as validation problems) are sorted out and fixed now, but apparently it takes much longer than we expected to find and fix the remaining problems in the new code. As long as these problems persist I'm afraid to introduce even more by adding more platforms and speedup measurements to the existing code, so "optimized" Apps are unlikely to come up before S5R3.
BM
最后似乎是是说跨平台验证问题貌似解决了，但耗费了过多的精力，所以其它的问题还有优化什么的就暂时来不及弄了。 |
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发表于 2007-9-4 10:03:44
发表于 2007-9-4 10:32:58
发表于 2007-9-9 05:55:37
