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Limit the number of messages 'Warning singular matrix: ...' to 6, 

if not 'set ngdebug'
This commit is contained in:
Holger Vogt 2022-06-18 19:56:12 +02:00
parent f7c5c93635
commit b46dd5effd
1 changed files with 9 additions and 2 deletions
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11
src/maths/ni/niiter.c
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@ -18,6 +18,7 @@ Modified: 2001 AlansFixes
#include "ngspice/cktdefs.h"
#include "ngspice/smpdefs.h"
#include "ngspice/sperror.h"
#include "ngspice/fteext.h"
/* NIiter() - return value is non-zero for convergence failure */
@ -31,6 +32,8 @@ NIiter(CKTcircuit *ckt, int maxIter)
int iterno = 0;
int ipass = 0;
static int msgcount = 0;
/* some convergence issues that get resolved by increasing max iter */
if (maxIter < 100)
maxIter = 100;
@ -116,9 +119,13 @@ NIiter(CKTcircuit *ckt, int maxIter)
if (error) {
/* new feature - we can now find out something about what is
* wrong - so we ask for the troublesome entry
* Limit the number of messages to 6, if not 'set ngdebug'.
*/
SMPgetError(ckt->CKTmatrix, &i, &j);
SPfrontEnd->IFerrorf (ERR_WARNING, "singular matrix: check nodes %s and %s\n", NODENAME(ckt, i), NODENAME(ckt, j));
if (ft_ngdebug || msgcount < 6) {
SMPgetError(ckt->CKTmatrix, &i, &j);
SPfrontEnd->IFerrorf(ERR_WARNING, "singular matrix: check nodes %s and %s\n", NODENAME(ckt, i), NODENAME(ckt, j));
msgcount += 1;
}
ckt->CKTstat->STATnumIter += iterno;
#ifdef STEPDEBUG
printf("reorder returned error \n");