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[GLOP] use absl::BigGenRef instead of random_engine

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Laurent Perron
2021-04-13 14:31:06 +02:00
parent 7cd11d51f8
commit d1d53f014e
7 changed files with 32 additions and 21 deletions
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12
ortools/glop/revised_simplex.cc
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@@ -86,6 +86,8 @@ RevisedSimplex::RevisedSimplex()
variable_name_(),
direction_(),
error_(),
deterministic_random_(kDeterministicSeed),
random_(deterministic_random_),
basis_factorization_(&compact_matrix_, &basis_),
variables_info_(compact_matrix_),
dual_edge_norms_(basis_factorization_),
@@ -97,8 +99,8 @@ RevisedSimplex::RevisedSimplex()
update_row_(compact_matrix_, transposed_matrix_, variables_info_, basis_,
basis_factorization_),
reduced_costs_(compact_matrix_, objective_, basis_, variables_info_,
basis_factorization_, &random_),
entering_variable_(variables_info_, &random_, &reduced_costs_,
basis_factorization_, random_),
entering_variable_(variables_info_, random_, &reduced_costs_,
&primal_edge_norms_),
num_iterations_(0),
num_feasibility_iterations_(0),
@@ -112,8 +114,7 @@ RevisedSimplex::RevisedSimplex()
function_stats_("SimplexFunctionStats"),
parameters_(),
test_lu_(),
feasibility_phase_(true),
random_(kDeterministicSeed) {
feasibility_phase_(true) {
SetParameters(parameters_);
}
@@ -3075,7 +3076,8 @@ Fractional RevisedSimplex::ComputeInitialProblemObjectiveValue() const {
void RevisedSimplex::SetParameters(const GlopParameters& parameters) {
SCOPED_TIME_STAT(&function_stats_);
random_.seed(parameters.random_seed());
deterministic_random_.seed(parameters.random_seed());
initial_parameters_ = parameters;
parameters_ = parameters;
PropagateParameters();