Giordano Giambartolomei

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  • Giordano Giambartolomeiさんがコメントを作成しました:

    In conclusion, the only way to do this is to create a file of desired size (dd from dev/zero) and then use mmap to back the memory-consuming processes with this file, rather than leaving it to the ...

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  • Giordano Giambartolomeiさんがコメントを作成しました:

    Thanks, that is what is odd though: macOS is supposed to use virtual memory until there is free space in disc, and on my disk there are still hundreds of GBs available as it is an almost empty 500G...

    コメントを表示 Giordano Giambartolomei 編集済み 0 件の投票

  • Giordano Giambartolomeiさんがコメントを作成しました:

    Thank you, it is python 3.12 and gurobipy12.03 all in a conda environment. Your script gets killed by zsh at about 9GB of (compressed) virtual memory occupied (the parameter I=438 at this point). D...

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  • Giordano Giambartolomeiさんが投稿を作成しました:

    gurobipy routine killed on macOS even though VM available

    回答済み

    I am running a gurobipy MIP routine for nonconvex QCQP that gets killed on macOS even though there is still tons of virtual memory available, with little RAM left. Since MacOS handles memory in suc...

    Giordano Giambartolomei 編集済み 2フォロワー 7件のコメント 0 件の投票

  • Giordano Giambartolomeiさんがコメントを作成しました:

    Thank you for your suggestions, I did some testing. Presolve should not play a significant role, as the time reported on Presolve is 0.00s and the sizes reported are all the same, whether I use mod...

    コメントを表示 Giordano Giambartolomei 0 件の投票

  • Giordano Giambartolomeiさんがコメントを作成しました:

    Thank you for your reply, I tested what you propose. The odd thing is that when I run model.optimize() with model.Params.DualReductions = 0, the RAM usage is not that much different from the defaul...

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  • Giordano Giambartolomeiさんがコメントを作成しました:

    Thank you for your reply, I understand. Is this additional optimisation step equivalent to m.optimize() with a conditional on the parameter m.Status or is it a different routine? I wonder if it is ...

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  • Giordano Giambartolomeiさんが投稿を作成しました:

    computeIIS log not displaying correctly

    回答済み

    After defining a nonconvex bilinear model (m.Params.NonConvex = 2) with no objective and running model.computeIIS() the log I get is the same as the one I get with model.optimize(), which solves it...

    Giordano Giambartolomei 2フォロワー 7件のコメント 0 件の投票

  • Giordano Giambartolomeiさんが投稿を作成しました:

    gurobipy 13.0.0b1 not available on ubuntu server 20.04 LTS, python3.9?

    回答済み

    I have been able to successfully install, with WLS license, gurobipy13.0.0b1 on ubuntu desktop 22.04 LTS with python3.10 by simply running python3 -m pip install gurobipy==13.0.0b1. On pypi.org I c...

    Giordano Giambartolomei 編集済み 2フォロワー 1件のコメント 0 件の投票

  • Giordano Giambartolomeiさんが投稿を作成しました:

    Error code 10019

    回答済み

    When using NodefileStart = 0.5 at a certain point ( about a day in) of the optimisation routine the solver gets interrupted with the following error:Solve interrupted (error code 10019)GurobiError:...

    Giordano Giambartolomei 編集済み 2フォロワー 1件のコメント 0 件の投票