Question #677261 on Yade changed:
https://answers.launchpad.net/yade/+question/677261
Status: Answered => Solved
fengjingyu confirmed that the question is solved:
Thanks Robert Caulk, that solved my question.
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Question #677261 on Yade changed:
https://answers.launchpad.net/yade/+question/677261
Robert Caulk proposed the following answer:
I am going to guess that you are using too few bodies to see
parallelization performance increase and it seems you are
hyperthreading. To see performance increase,
Question #677261 on Yade changed:
https://answers.launchpad.net/yade/+question/677261
fengjingyu posted a new comment:
>> If you have 8 physical cores and you assign 12 to the VM, you will be
moving into hyperthreading territory.
I can allocate memory and processor cores within vmware. What I
Question #677261 on Yade changed:
https://answers.launchpad.net/yade/+question/677261
Robert Caulk requested more information:
>>My computer has 16 processor
16 physical cores and 32 threads, or 8 physical cores and 16 threads? If
you have 8 physical cores and you assign 12 to the VM, you will
Question #677261 on Yade changed:
https://answers.launchpad.net/yade/+question/677261
fengjingyu posted a new comment:
>> How many cores does your processor have?
My computer has 16 processor and i allocated 12 processors to the
virtual machine.
>>Can you provide the output/numbers?
After 2100
Question #677261 on Yade changed:
https://answers.launchpad.net/yade/+question/677261
Jérôme Duriez posted a new comment:
See also
yadedaily -j 4 --performance (maybe more convincing than an empty simulation..)
vs
yadedaily -j4 --performance
and
yadedaily --performance
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Question #677261 on Yade changed:
https://answers.launchpad.net/yade/+question/677261
Jérôme Duriez posted a new comment:
Regarding Robert's #3 comment, is it true that space is not accepted
between "j" and e.g. "4" ?
If I launch yadedaily -j 4 (with space), and O.run() (for an empty
Question #677261 on Yade changed:
https://answers.launchpad.net/yade/+question/677261
Status: Needs information => Answered
Robert Caulk proposed the following answer:
>>The hardware specs is x64-based processor.Installed memory is 64GB.
How many cores does your processor have?
>>I use
Question #677261 on Yade changed:
https://answers.launchpad.net/yade/+question/677261
Status: Open => Needs information
Robert Caulk requested more information:
Hello,
>> I allocated 32G of memory and 12 processors to the virtual machine.
Please provide your hardware specs too.
>>I found
New question #677261 on Yade:
https://answers.launchpad.net/yade/+question/677261
Hi，
I installed ubantu on vmware workstation.I allocated 32G of memory and 12
processors to the virtual machine.However, I found that yade's running speed
was not qualitatively changed compared with 4G memory and
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