Giordano Giambartolomei
- Total activity 20
- Last activity
- Member since
- Following 0 users
- Followed by 0 users
- Votes 1
- Subscriptions 6
Activity overview
Latest activity by Giordano Giambartolomei-
Giordano Giambartolomei commented,
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 ...
-
Giordano Giambartolomei commented,
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...
-
Giordano Giambartolomei commented,
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...
-
Giordano Giambartolomei created a post,
gurobipy routine killed on macOS even though VM available
AnsweredI 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 commented,
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...
-
Giordano Giambartolomei commented,
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...
-
Giordano Giambartolomei commented,
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 ...
-
Giordano Giambartolomei created a post,
computeIIS log not displaying correctly
AnsweredAfter 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 created a post,
gurobipy 13.0.0b1 not available on ubuntu server 20.04 LTS, python3.9?
AnsweredI 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 created a post,
Error code 10019
AnsweredWhen 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:...