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speedTest function in multiple cores
speedTest function in multiple cores
I established a mixed logit model and about 20 random parameters are set. when I use 1000 MLHS draws for these parameter, the model runs a very long time, about several days. therefore, I use the speedTest function to explore the most suitable number of cores and the seconds used in likelihood calculation keep little changed since the 3 cores, no matter the draws are 500, 1000. Does it mean 3 cores is are the most suitable cores' number? I do not understand it, because I have so many random parameters and draws and in my mind, more cores lead higher model estimation speed.
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stephanehess
- Site Admin
- Posts: 998
- Joined: 24 Apr 2020, 16:29
Re: speedTest function in multiple cores
Hi
yes, this suggests that 3 cores is a good number to use. The benefits of multiple cores might decrease if you use too many cores
Stephane
yes, this suggests that 3 cores is a good number to use. The benefits of multiple cores might decrease if you use too many cores
Stephane
Re: speedTest function in multiple cores
Hi Stephane,
the running time is so long now, if i want to speed up it, what method could help it? i can apply for using supercomputer of my university, but I do not know if it will work.
Best,
Qiang
the running time is so long now, if i want to speed up it, what method could help it? i can apply for using supercomputer of my university, but I do not know if it will work.
Best,
Qiang
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stephanehess
- Site Admin
- Posts: 998
- Joined: 24 Apr 2020, 16:29
Re: speedTest function in multiple cores
yes, a faster computer will help