littleike
Posts: 159
Joined: 10/3/2007 Status: offline
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I had this explanation about performance switches: Performance specified CPU, otherwise both of these switches default to the first CPU. If a -cpu# switch and one of these -Single switches are used, the turns will always be processed in multi processor mode. -cpu# : (cpu1, cpu2, cpu3, cpu4) Switches set the cpu affinity for multi cpu systems. It will do nothing for single cores and will default to using all cores if a core is designated which is not there (for example using -cpu3 on a dual core system). We’ve found this to be very useful on some multi-core systems, especially Intel processors. (Please note that the old –dual switch has been removed in favor of the below combination of more configurable switches) -SingleCpuStart : Starts the game in single CPU mode. Switches to multi CPU mode if available later. We’ve found this to be useful on some multi-core systems, especially AMD processors. -SingleCpuOrders : Starts the game in single CPU mode and stays in single CPU for the orders phase, switches to multi CPU mode for running the turn, then switches back to single mode for the next orders phase. We’ve found this to be useful on some multi-core systems, especially AMD processors. Use this or –SingleCpuStart, not both. If used alone, the -cpu# switches will keep the game running on the CPU specified all the time. If used with the - SingleCpuStart switch, it will only use that core when starting the game. If used with the -SingleCpuOrders switch, it will stay in single CPU mode for starting and the orders phase, but will run in multicore. If one of the SingleCpu switches is used without a -cpu# switch, it will default to cpu 1 when it is in single core.
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