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niconv.c, NIconvTest(), NaN in CKTrhs denotes non-convergence 

emit a warning message, but only if ft_ngdebug is set
This commit is contained in:
rlar 2017-03-19 20:38:41 +01:00
parent dc6e1cb064
commit d696aa8781
1 changed files with 7 additions and 0 deletions
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7
src/maths/ni/niconv.c
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@ -14,6 +14,8 @@ Author: 1985 Thomas L. Quarles
#include "ngspice/cktdefs.h"
#include "ngspice/smpdefs.h"
extern bool ft_ngdebug;
int
NIconvTest(CKTcircuit *ckt)
@ -38,6 +40,11 @@ NIconvTest(CKTcircuit *ckt)
node = node->next;
new = ckt->CKTrhs [i] ;
old = ckt->CKTrhsOld [i] ;
if (isnan(new)) {
if (ft_ngdebug)
fprintf(stderr, "Warning: non-convergence, node %s is nan\n", CKTnodName(ckt, i));
return 1;
}
if(node->type == SP_VOLTAGE) {
tol = ckt->CKTreltol * (MAX(fabs(old),fabs(new))) +
ckt->CKTvoltTol;