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Elastic 2D P-SV adjoints and gradients #1

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Elastic 2D P-SV adjoints and gradients #1

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This PR introduces the adjoint and gradients with respect to density and Lamé parameters in the elastic 2D P-SV simulations.

This also adds FD macros in preparation for arbitrary order of accuracy FD stencils.

Bug fixes:

  • fix arbitrary source and receiver positions for elastic simulations
  • fix scaling of source injection for elastic simulations
  • fix race conditions in source injection and receiver recordings for elastic simulations

Andrea Zunino and others added 30 commits May 12, 2023 10:36
starting the elastic business...
1ec6737
Merge branch 'main' into elastic
2280513
Merge branch 'main' into elastic
66f6624
some progress...
6f9f5b4
modified: ela_models.jl
860caae
some progress towards elastic...
f4077b8
slow progress
036280d
working on ela...
df502bd
Merge branch 'main' into elastic
0c81959
wip...
8604987
Merge branch 'main' into elastic
6cc55b9
update
8d88a87
wip...
a135ced
updates...
3b6d50d
new arg in build_wavesim
24218fd
work in prog... breaking changes
918af77
refactor init_shot!, etc.
7c04e24
updates...
ab3922e
update
5a938bf
wip... working without cpml
395c0b1
testing snapshots
ad58e0e
bump version
0db9a47
fix free surface mirroring
b563688
fix free surface, again...
2703a4c
wip: interpolate src and rec with a sinc
76851e9
wip: interp src and recs with sinc
4eefba1
first src and rec interpolation with sinc
c774286
fix bug in PMLs
bd5851d
add simple_example_elastic.jl
b0aafb6
@GiackAloZ
Pinned compatibility on Julia v1.7 to v1.9 for now
71592f1
GiackAloZ and others added 27 commits October 22, 2024 09:47
@GiackAloZ
Move things in utils
ac8359b
@GiackAloZ
Replace elastic backend (WIP)
e0d458c
@GiackAloZ
Fix gradient correlations and checkpointing + test
ba6e662
@GiackAloZ
Update grad check
2ea1bd3
@GiackAloZ
Fix gradient check
8e919b3
@GiackAloZ
Refactor receiver recording to fix concurrency
a477f14
@GiackAloZ
Refactor receiver recording to improve performance
059ee12
@GiackAloZ
Implement correct adjoint solver elasic 2D iso P-SV
39e48e2
@GiackAloZ
Add module FiniteDifferencesMacros and use them to refactor elastic 2…
12a3ef0 
…D P-SV
@GiackAloZ
Add macros for first derivatives with CPMLs
257c4eb
@GiackAloZ
Add macros for second order CPML derivatives
edf5a8a
@GiackAloZ
Polished up macros
a4c5982
@GiackAloZ
Formatting
cdab2c2
@GiackAloZ
Remove error print when boundary checking
de22441
@GiackAloZ
Refactor VD acoustic with new macros
bcfb2e7
fix indices free surface
d37f1de
@GiackAloZ
Merge branch 'develop' of gitlab.com:JuliaGeoph/SeismicWaves.jl into …
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…develop
@GiackAloZ
Add support for different fields in gradient macro
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@GiackAloZ
Refactor acoustic backends with new macros
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@GiackAloZ
Remove unnecessary @views
ba1d9af
@GiackAloZ
Keep only one CPML coefficients implementation
a418952
@GiackAloZ
Fix mirroring for free surface
25b4ea6
@GiackAloZ
Fix arbitrary source / receivers interpolations with corrected mirror…
f5e81f7 
…ed coefficients
@GiackAloZ
Merge branch "main" into develop
d1fec86
@GiackAloZ
Merge branch "main" into develop
81eb3a1
@GiackAloZ
Fix merge
74806bc
@GiackAloZ
Fix source scaling
122750f
inverseproblem
inverseproblem previously approved these changes Feb 3, 2025
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