FYI, our ngspice package is compiled with xspice enabled ---------- Forwarded message ---------- From: Holger Vogt <> Date: Sun, Jul 11, 2010 at 7:55 PM Subject: [Ngspice-users] ngspice simulation speed To: Ngspice users mailing list <n> Hi all, if you have XSPICE enabled during compilation, you will experience a doubling of time steps (and cpu time) required during transient simulation compared to spice3f. This is caused by the value of trtol, which is internally set to 1 (instead of standard 7), if XSPICE is compiled in. So if you do not use XSPICE devices (named a...) or the poly option in voltage sources, you might set .option trtol=7 in your input file and gain a factor of two in speed. Momentarily there is no way to set this value in spinit or .spiceinit. Regards Holger ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ Ngspice-users mailing list Ngspice-users@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/ngspice-users _______________________________________________ electronic-lab mailing list electronic-lab@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/electronic-lab