junyan qiu
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Latest activity by junyan qiu-
junyan qiu commented,
Thanks for your responses, which are professional. When the number of cases goes up, the ratio of cache-miss increases quickly, which can explain the significant slowing down of solving speed.
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junyan qiu commented,
I am sure 8 cores are fully available. I can see the number of busy cores is also 8 (with 100% usage), and there is no other heavy task in the background when I experiment. I guess the problem may...
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junyan qiu commented,
Please use fixed TSP data for this experiment to avoid non-determinism. I use a benchmark in TSPLIB as data, which consists of 200 points. Every TSP case is using the same data. Then the the num...
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junyan qiu commented,
Hi, Jaromił: I am not able to observe this issue when comparing caseNum=4 vs caseNum=2, because then all cases can use physical cores.It should be best to limit the number of cases run in paralle...
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junyan qiu created a post,
Gurobi with multiprocessing has few benefits
AnsweredProblem: I follow the tutorial in https://support.gurobi.com/hc/en-us/articles/360043111231-How-do-I-use-multiprocessing-in-Python-with-Gurobi- to use multiprocessing with gurobi, to solve multiple...