Download PDF - Nvidia
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Seismic Imaging<br />
Computational scale<br />
• Imaging integral formulation:<br />
<br />
2 2 <br />
O( x)<br />
d xs<br />
d xR<br />
A( x,<br />
xs,<br />
xR)<br />
Ixs<br />
, xR,<br />
t T( x,<br />
xs)<br />
T( x,<br />
x<br />
– 4-D <br />
<br />
surface integral through a 5-D data set<br />
• Computational complexity:<br />
– N O ~ 10 9 is the number of output image points<br />
– N I ~ 10 8 is the number of input data traces<br />
– f ~ 30 is the number of cycles/point/trace<br />
– f N O N I ~ 3 x 10 18 cycles ~ 30 cpu-years<br />
R<br />
) <br />
8
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