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Old   September 20, 2017, 00:21
Default calculate slowly
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liyong
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After running several minutes, CPU occupied by the procedures of cvg solver is almost zero(about 50% only in a short time now and then ), while the memory is used almost 98%! And the calculating is so slowly that only 10 cycles is calculated in two hours. I want to know if this is normal ?


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Old   September 20, 2017, 02:36
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Image1505889378.720538.jpgImage1505889378.720538.jpg


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Old   September 20, 2017, 02:36
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Hi,

if RAM is full, windows writes a page file and uses HDD space as virtual RAM (rough explanation). This of course slows down the simulation, basically stopping it. You need to make sure you dont exceed your RAM limit at any time.
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Old   September 20, 2017, 02:42
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Quote:
Originally Posted by MFGT View Post
Hi,

if RAM is full, windows writes a page file and uses HDD space as virtual RAM (rough explanation). This of course slows down the simulation, basically stopping it. You need to make sure you dont exceed your RAM limit at any time.


But why CPU is not used at all?


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Old   September 20, 2017, 03:50
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Because your HDD is limited by writing and reading, CPU canīt calculate further if RAM (virtual RAM on HDD) is working too slow.

Check your HDD usage in task manager -> resource monitor
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Old   September 20, 2017, 04:57
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Quote:
Originally Posted by MFGT View Post
Because your HDD is limited by writing and reading, CPU canīt calculate further if RAM (virtual RAM on HDD) is working too slow.

Check your HDD usage in task manager -> resource monitor


Thank you very much!


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