Comments (1)
The set_number_of_threads
is used to globally control the number of threads used for processing GIS data prior to solving reserve selection problems. If multiple cores are specified for pre-processing data (set via the set_number_of_threads
function), then R will create the warnings you're seeing. You can safely disregard these warnings.
To set the number of threads used for solving a problem, check out the add_*_solver
functions (e.g. add_gurobi_solver
). Unfortunately, Rsymphony package does not allow users to control the number of threads to use for solving problem, so the add_rsymphony_solver
function does not have a threads
argument. It seems that on certain systems the Rsymphony and lpsymphony packages will only use one thread for solving problems, and on other systems these packages will automatically use all of the threads for solving problems - but there is not yet an mechanism to control this within R.
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Related Issues (20)
- New presolve check warning: more features are needed on previously feasible problem HOT 3
- Error solving problem HOT 6
- please change check in `add_manual_locked_constraints()` HOT 10
- Assertion on 'log_to_console' failed: Must be of type 'logical', not 'integer'. HOT 3
- rij_matrix can return empty matrix when memory = TRUE HOT 2
- installation of cplexAPI package + re-scaling features data HOT 17
- Overly zealous assert causes spurious failure on problem(), breaking valid prioritizr 7.1.1 scripts HOT 2
- high boundary penalties, but solution has weird hole HOT 1
- Error while solving the problem HOT 10
- package overview manual entry
- Add linear constraints for multiple zones HOT 3
- lexicographic (hierachical) multi-objective optimization HOT 5
- Add max area threshold for zone and dealing with fragmented zones HOT 25
- Improve presolve checks HOT 1
- ℹ In argument to `x`. Caused by `problems(pu, features = multi_layer)` HOT 7
- write_problem() doesn't work
- Categorical `SpatRaster` layers break problem creation HOT 4
- Ph.D. HOT 2
- How should I incorporate a risk layer? Penalty, feature, feature weight? HOT 7
- Add proximity-based metrics for irreplaceability
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