minimum core问题，

419435663

The amount of memory allocated for the run is 2638 MB, which
is larger than the specified (or the default) RAM= 1000 MB.
This run will use minimum core processing in the solver.
我在计算的时候遇到这问题，minimum core处理是什么意思啊？影响计算速度么？我电脑内存32 G，怎么改这个default RAM 1000M啊？ 有的说设置SYSSETTING，我看了一下，没看懂，谁能帮助一下？
SYSSETTING(OS_RAM=320,OS_RAM_INIT=32,CARDLENGTH=80)
SYSSETTING(RAM_SAFETY=1.0,RAMDISK=200,SYNTAX=ALLOWINT)
SYSSETTING(SPSYNTAX=CHECK,LOADTEMP=0,NPROC=1)
SYSSETTING(PLOTELID=UNIQUE)

SYSSETTING(SCRFMODE=UNBUFFERED)