請教CST多核計(jì)算
請問在CST中如何設(shè)置多核并行計(jì)算,我用的是雙CPU,每個4核,但顯示只用了一個核,太慢了。
lll.........
現(xiàn)在是自動認(rèn)多核的吧,不用設(shè)置也可以默認(rèn)吧
CST MWS幫助文件《Acceleration》。
自動識別的,不過跟求解器有關(guān),有的能滿核,有的不行
也分計(jì)算的階段,有的階段只用一個核
好像對多線程支持的不好
只認(rèn)物理核心不認(rèn)超線程
Why are only half of the available processor cores used by the CST solvers? (hyperthreading) (Faq #348)
(Last modified: 11/21/2010 )
Newer processors have a feature called hyperthreading, i.e., the processors have not only the so called physical cores but they also have virtual cores which provide some limited functionality but are shown in the Windows Task Manager as normal processor cores. This means that you will see 24 processor cores in the Task Manager on a machine which has 12 physical processor cores with hyperthreading enabled.
For some type of applications hyperthreading can improve the performance. However, the performance of the CST solvers suffers if they run not only on physical processor cores but also on the virtual cores. For this reason the solvers are only started on the physical processor cores found on the machine. The virtual cores are ignored. This is the reason why you see only 50% processor load in the Task Manager.
my god! 真的不支持新版cpu的超線程技術(shù)???求解器的性能至少損失20%-30%!對之前舊版cpu的超線程技術(shù)支持的很好,為何現(xiàn)在不行了?CST的開發(fā)人員在用舊機(jī)器嗎?摩爾定律尚未過時,非常期待CST能夠早日加入對新版cpu的超線程技術(shù)的支持。