Tessa Meyer

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Latest activity by Tessa Meyer
  • Tessa Meyer commented,

    Thank you for your answer and I have one last question. The concurrent optimizer solves the same model on multiple cores/machines with different settings. . . What kind of settings are changed?

  • Tessa Meyer created a post,

    Using ConcurrentMIP

    Answered

    Hello. Since it took quite a long time to solve a model on a 4-core machine (one week), I also started it on a 24-core machine and set the ConcurrentMIP parameter to 4. Apart from the time advantag...

  • Tessa Meyer commented,

    Thank you! Before, I thought you were going to tell me that another job scheduling system would be better for this, which kind of confused me. But now it's clear.

  • Tessa Meyer commented,

    Ahh, ok. Basically, however, the batch solve command does not work with any job scheduling system for Linux clusters, regardless of which one it is.

  • Tessa Meyer commented,

    Hey. One last question: However, you can use slurm and/or screen to work with a batch equivalent. What difference would using slurm instead of lsf make?

  • Tessa Meyer commented,

    Hi JaromiƂ. Just to make sure I have got you correctly: With an academic license, I can not submit a distributed MIP as a batch (lsf) using the batch solve command? Kind regards Tessa

  • Tessa Meyer created a post,

    Submitting a Distributed MIP as a Batch Job

    Answered

    Hi. Running distributed algorithms requires distributed workers and a manager. To setup the worker nodes you need to run "grb_rs --worker" on the worker nodes. If you are using an HPC cluster where...

  • Tessa Meyer created a post,

    Branch-and-Bound integer/float

    Answered

    Hi. Gurobi is using the branch-and-bound/cut-method for optimization. According to literature the aim of this method is to find an optimal integer solution by going through the search tree. But the...

  • Tessa Meyer commented,

    I am using the energy modelling framework oemof which uses the framework pyomo itsself. Providing the path and setting the output flag does not make it write the logfile. So there might be some iss...

  • Tessa Meyer commented,

    Hi Sonja. Actually, I can not directly interact with gurobi as there is an other framework in between. So to write the logfile I passed the parameter 'LogFile' (the same way I passed the parameters...