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Stop if residual is 0
author
Andreas Eversberg
<jolly@eversberg.eu>
Wed, 21 Oct 2015 04:27:20 +0000
(06:27 +0200)
committer
Andreas Eversberg
<jolly@eversberg.eu>
Sat, 14 May 2016 10:55:54 +0000
(12:55 +0200)
lib/multigrid.c
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diff --git
a/lib/multigrid.c
b/lib/multigrid.c
index
f3097ee
..
a2409c8
100644
(file)
--- a/
lib/multigrid.c
+++ b/
lib/multigrid.c
@@
-1434,6
+1434,10
@@
int solve_mg(int nlevel, int iters, int ncycle, darray_t **values, darray_t **ma
//printf("residual %.8f (change=%%%.4f)\n", curr_residual, (prev_residual-curr_residual)/prev_residual*100);
if (target_residual_change)
printf(" %.1f%%", (prev_residual-curr_residual)/prev_residual*100); fflush(stdout);
+ if (curr_residual == 0.0) {
+ printf(" 0"); fflush(stdout);
+ break;
+ }
if (target_residual_change && (prev_residual-curr_residual)/prev_residual < target_residual_change)
break;
prev_residual = curr_residual;