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DTSTAMP:20220812T074334Z
LOCATION:Singapore Room
DTSTART;TZID=Europe/Stockholm:20220628T120000
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UID:submissions.pasc-conference.org_PASC22_sess148_msa141@linklings.com
SUMMARY:Algorithm and Implementation Optimisation of a New Internal Multip
 le Removal Method
DESCRIPTION:Minisymposium\n\nAlgorithm and Implementation Optimisation of 
 a New Internal Multiple Removal Method\n\nThorbecke, Zhang, Wapenaar, Slob
 \n\nThe Marchenko method can remove internal multiples from seismic data w
 ithout any prior knowledge. This method is computational intensive. Optimi
 sation of the implementation, together with changes in the algorithm and u
 se of the method, makes it computationally feasible. We briefly introduce 
 the problem of internal multiples and explain the basic algorithm. <br />S
 tarting from this basic algorithm changes are proposed on three different 
 levels: <br />The compute kernel can be optimised by using loop reordering
 , and the use of highly optimised DGEMM operations. <br />The algorithm ca
 n be made faster by using results from previous iterations in the current 
 iteration. <br />By using plane-waves instead of point-sources initial res
 ults can be obtained at lower computational costs. <br /><br />Examples il
 lustrate the effectiveness of the multiple elimination method and the comp
 utational advantages.\n\nDomain: Climate, Weather and Earth Sciences, Comp
 uter Science and Applied Mathematics, Physics
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