Review of Lossy Checkpoint Compression in Full Waveform Inversion
2021
This paper is a report on using compression for the forward and gradient solutions in full waveform inversion (FWI).They discuss an algorithm that uses compressed storage, as opposed to raw storage, in a checkpoint algorithm in the style of Griewank.A review of some of the existing literature is presented.Then the experimental methodology is discussed.The approach taken is to compare the reference solution (measured in terms of the gradient and forward solution) to the result when the forward solution is compressed.The study is reasonably complete and demonstrates for FWI that compression can be used.C1