The answer depends on what machine you are emulating and with what operating system. Something like a VAX with OpenVMS has a lot of tuning parameters within the operating system for balancing batch and foreground priorities. Most systems that had simultaneous batch and interactive operation were set up in this way. But the controls are internal to the operating system software, not to the hardware itself and therefore not in the purview of SIMH settings.
Or did you mean that you are letting something run on a SIMH emulation and it gets in the way of doing other things on your host machine? There is a setting to control the percentage of the host CPU that is used by most SIMH emulators I've tried, though I don't know whether it is active in all of them: SET THROTTLE xx% This command given at the SIMH command prompt limits the amount of CPU that can be taken up by the SIMH emulation at any time to xx% of the whole. It will not, however, balance between batch and interactive processes running within the emulation. Those will both be slowed down by an equal amount. Tuning that balance requires internal settings in the emulated environment. --Gary _______________________________________________ Simh mailing list [email protected] http://mailman.trailing-edge.com/mailman/listinfo/simh
