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IFOS2D
IFOS2D
Commit 0c927f9c authored by Florian Wittkamp's avatar Florian Wittkamp
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Merge branch 'feature/Fix_conjugate' into develop

parents dd778c01 89c8abf6
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Showing with 47 additions and 20 deletions
src/IFOS2D.c
View file @ 0c927f9c
......@@ -99,6 +99,9 @@ int main(int argc, char **argv){
int SOURCE_SHAPE_OLD=0;
int SOURCE_SHAPE_OLD_SH=0;
/* Variables for conjungate gradient */
int PCG_iter_start=1;
/* Variables for L-BFGS */
int LBFGS_NPAR=3;
int LBFGS_iter_start=1;
......@@ -222,9 +225,6 @@ int main(int argc, char **argv){
at the receiver positions to calculate the adjoint sources and to do
the backpropagation; look at function saveseis_glob.c to see that every
NDT sample for the forward modeled wavefield is written to su files*/
lsnap=iround(TSNAP1/DT); /* first snapshot at this timestep */
lsamp=NDT;
/* output of parameters to log-file or stdout */
if (MYID==0) write_par(FP);
......@@ -504,13 +504,7 @@ int main(int argc, char **argv){
cjm = vector(1,L);
}
/*nf=4;
nfstart=4;*/
NTST=20;
NTSTI=NTST/DTINV;
nxny=NX*NY;
nxnyi=(NX/IDXI)*(NY/IDYI);
/* Parameters for step length calculations */
......@@ -2900,17 +2894,25 @@ int main(int argc, char **argv){
/* ----------------------------------------------------------------------*/
/* ----------- Preconditioned Conjugate Gradient Method (PCG) ----------*/
/* ----------------------------------------------------------------------*/
if((GRAD_METHOD==1)){
if(GRAD_METHOD==1){
if( (iter-PCG_iter_start) < 2 ) {
fprintf(FP,"\n\n ----- Conjugate Gradient Method -----");
fprintf(FP,"\n Will not use second last gradient for conjugate gradient");
if( (iter-PCG_iter_start) < 1 ) {
fprintf(FP,"\n Will not use last gradient for conjugate gradient");
}
}
if (WAVETYPE==1 || WAVETYPE==3) PCG(waveconv, taper_coeff, nsrc, srcpos, recpos, ntr_glob, iter, C_vp, gradp, nfstart_jac, waveconv_u, C_vs, gradp_u, waveconv_rho, C_rho, gradp_rho,Vs_avg,F_LOW_PASS);
if (WAVETYPE==2 || WAVETYPE==3) PCG_SH(taper_coeff, nsrc, srcpos, recpos, ntr_glob, iter, nfstart_jac, waveconv_u_z, C_vs, gradp_u_z, waveconv_rho_z, C_rho, gradp_rho_z,Vs_avg,F_LOW_PASS);
if (WAVETYPE==1 || WAVETYPE==3) PCG(waveconv, taper_coeff, nsrc, srcpos, recpos, ntr_glob, iter, C_vp, gradp, nfstart_jac, waveconv_u, C_vs, gradp_u, waveconv_rho, C_rho, gradp_rho,Vs_avg,F_LOW_PASS,PCG_iter_start);
if (WAVETYPE==2 || WAVETYPE==3) PCG_SH(taper_coeff, nsrc, srcpos, recpos, ntr_glob, iter, nfstart_jac, waveconv_u_z, C_vs, gradp_u_z, waveconv_rho_z, C_rho, gradp_rho_z,Vs_avg,F_LOW_PASS,PCG_iter_start);
}
/* ---------------------------------------------------------*/
/* ----------- Beginn Joint Inversion PSV and SH ----------*/
/* ---------------------------------------------------------*/
if((FORWARD_ONLY==0)){
if(FORWARD_ONLY==0){
switch (WAVETYPE) {
case 2:
/* If only SH is inverted, set these gradients to the actual ones */
......@@ -2950,7 +2952,7 @@ int main(int argc, char **argv){
/* -------------------------------------------------------------------------*/
/* ----------- Limited Memory - Broyden-Fletcher-Goldfarb-Shanno ----------*/
/* -------------------------------------------------------------------------*/
if((GRAD_METHOD==2)){
if(GRAD_METHOD==2){
/*---------------------*/
/* TAPER */
......@@ -3903,6 +3905,9 @@ int main(int argc, char **argv){
/* Restart L-BFGS at next iteration */
LBFGS_iter_start=iter+1;
/* Restart conjugate gradient at next iteration */
PCG_iter_start=iter+1;
wolfe_SLS_failed=0;
}
......@@ -3933,6 +3938,10 @@ int main(int argc, char **argv){
/* Restart L-BFGS at next iteration */
LBFGS_iter_start=iter+1;
/* Restart conjugate gradient at next iteration */
PCG_iter_start=iter+1;
wolfe_SLS_failed=0;
alpha_SL_old=1;
}
......@@ -3964,6 +3973,10 @@ int main(int argc, char **argv){
/* Restart L-BFGS at next iteration */
LBFGS_iter_start=iter+1;
/* Restart conjungate gradient at next iteration */
PCG_iter_start=iter+1;
wolfe_SLS_failed=0;
alpha_SL_old=1;
}
......
src/PCG.c
View file @ 0c927f9c
......@@ -24,7 +24,7 @@
#include "fd.h"
void PCG(float ** waveconv, float ** taper_coeff, int nsrc, float ** srcpos, int ** recpos, int ntr_glob, int iter, float C_vp, float ** gradp, int nfstart_jac, float ** waveconv_u, float C_vs, float ** gradp_u, float ** waveconv_rho, float C_rho, float ** gradp_rho, float Vs_avg, float F_LOW_PASS){
void PCG(float ** waveconv, float ** taper_coeff, int nsrc, float ** srcpos, int ** recpos, int ntr_glob, int iter, float C_vp, float ** gradp, int nfstart_jac, float ** waveconv_u, float C_vs, float ** gradp_u, float ** waveconv_rho, float C_rho, float ** gradp_rho, float Vs_avg, float F_LOW_PASS, int PCG_iter_start){
extern int NX, NY, IDX, IDY, SPATFILTER, GRAD_FILTER;
extern int FORWARD_ONLY, SWS_TAPER_GRAD_VERT, SWS_TAPER_GRAD_HOR, SWS_TAPER_GRAD_SOURCES, SWS_TAPER_FILE;
......@@ -41,8 +41,14 @@ void PCG(float ** waveconv, float ** taper_coeff, int nsrc, float ** srcpos, int
int use_conjugate_2=1;
FILE *FP3, *FP4, *FP6, *FP5 = NULL;
/* Check if conjugate gradient can be used */
if( (iter-PCG_iter_start) < 2 ) {
use_conjugate_2=0;
if( (iter-PCG_iter_start) < 1 ) {
use_conjugate_1=0;
}
}
/* ===================================================================================================================================================== */
/* ===================================================== GRADIENT ZP ================================================================================== */
/* ===================================================================================================================================================== */
......
src/PCG_SH.c
View file @ 0c927f9c
......@@ -24,7 +24,7 @@
#include "fd.h"
void PCG_SH(float ** taper_coeff, int nsrc, float ** srcpos, int ** recpos, int ntr_glob, int iter, int nfstart_jac, float ** waveconv_u, float C_vs, float ** gradp_u, float ** waveconv_rho, float C_rho, float ** gradp_rho, float Vs_avg, float F_LOW_PASS){
void PCG_SH(float ** taper_coeff, int nsrc, float ** srcpos, int ** recpos, int ntr_glob, int iter, int nfstart_jac, float ** waveconv_u, float C_vs, float ** gradp_u, float ** waveconv_rho, float C_rho, float ** gradp_rho, float Vs_avg, float F_LOW_PASS, int PCG_iter_start){
extern int NX, NY, IDX, IDY, SPATFILTER, GRAD_FILTER;
extern int FORWARD_ONLY, SWS_TAPER_GRAD_VERT, SWS_TAPER_GRAD_HOR, SWS_TAPER_GRAD_SOURCES, SWS_TAPER_FILE;
......@@ -40,6 +40,14 @@ void PCG_SH(float ** taper_coeff, int nsrc, float ** srcpos, int ** recpos, int
int use_conjugate_2=1;
/* Check if conjugate gradient can be used */
if( (iter-PCG_iter_start) < 2 ) {
use_conjugate_2=0;
if( (iter-PCG_iter_start) < 1 ) {
use_conjugate_1=0;
}
}
/* ===================================================================================================================================================== */
/* ===================================================== GRADIENT Zs ================================================================================== */
/* ===================================================================================================================================================== */
......
src/fd.h
View file @ 0c927f9c
......@@ -186,9 +186,9 @@ void taper(float *section, int ns, float fc);
void output_source_signal(FILE *fp, float **signals, int ns, int seis_form);
void PCG(float ** waveconv, float ** taper_coeff, int nsrc, float ** srcpos, int ** recpos, int ntr_glob, int iter, float C_vp, float ** gradp, int nfstart_jac, float ** waveconv_u, float C_vs, float ** gradp_u, float ** waveconv_rho, float C_rho, float ** gradp_rho, float Vs_avg, float F_LOW_PASS);
void PCG(float ** waveconv, float ** taper_coeff, int nsrc, float ** srcpos, int ** recpos, int ntr_glob, int iter, float C_vp, float ** gradp, int nfstart_jac, float ** waveconv_u, float C_vs, float ** gradp_u, float ** waveconv_rho, float C_rho, float ** gradp_rho, float Vs_avg, float F_LOW_PASS, int PCG_iter_start);
void PCG_SH(float ** taper_coeff, int nsrc, float ** srcpos, int ** recpos, int ntr_glob, int iter, int nfstart_jac, float ** waveconv_u, float C_vs, float ** gradp_u, float ** waveconv_rho, float C_rho, float ** gradp_rho, float Vs_avg, float F_LOW_PASS);
void PCG_SH(float ** taper_coeff, int nsrc, float ** srcpos, int ** recpos, int ntr_glob, int iter, int nfstart_jac, float ** waveconv_u, float C_vs, float ** gradp_u, float ** waveconv_rho, float C_rho, float ** gradp_rho, float Vs_avg, float F_LOW_PASS, int PCG_iter_start);
void PML_pro(float * d_x, float * K_x, float * alpha_prime_x, float * a_x, float * b_x,
float * d_x_half, float * K_x_half, float * alpha_prime_x_half, float * a_x_half, float * b_x_half,
......
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