From 64101c495c5840c2c2e42b32040d49ffd9dcd4a8 Mon Sep 17 00:00:00 2001
From: "Alinson S. Xavier" <git@axavier.org>
Date: Wed, 25 Jan 2023 12:04:43 -0600
Subject: [PATCH] Make cut aggressiveness configurable

---
 src/Cuts/BlackBox/cplex.jl       | 9 ++++++---
 test/Cuts/BlackBox/test_cplex.jl | 2 +-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/Cuts/BlackBox/cplex.jl b/src/Cuts/BlackBox/cplex.jl
index d9a2ca5..7a522f0 100644
--- a/src/Cuts/BlackBox/cplex.jl
+++ b/src/Cuts/BlackBox/cplex.jl
@@ -8,6 +8,7 @@ using HDF5
 
 Base.@kwdef struct CplexBlackBoxCuts
     threads::Int = 1
+    aggressive::Bool = false
 end
 
 function _add_mip_start!(env, lp, x::Vector{Float32})
@@ -56,9 +57,11 @@ function collect(
     CPXsetintparam(env, CPX_PARAM_THREADS, method.threads)
 
     # Parameter: Make cutting plane generation more aggresive
-    CPXsetintparam(env, CPX_PARAM_FRACCUTS, 2)
-    CPXsetintparam(env, CPX_PARAM_MIRCUTS, 2)
-    CPXsetintparam(env, CPX_PARAM_ZEROHALFCUTS, 2)
+    if method.aggressive
+        CPXsetintparam(env, CPX_PARAM_FRACCUTS, 2)
+        CPXsetintparam(env, CPX_PARAM_MIRCUTS, 2)
+        CPXsetintparam(env, CPX_PARAM_ZEROHALFCUTS, 2)
+    end
 
     # Load problem
     lp = CPXcreateprob(env, status_p, "problem")
diff --git a/test/Cuts/BlackBox/test_cplex.jl b/test/Cuts/BlackBox/test_cplex.jl
index 2ea9175..4160a6b 100644
--- a/test/Cuts/BlackBox/test_cplex.jl
+++ b/test/Cuts/BlackBox/test_cplex.jl
@@ -17,5 +17,5 @@ function test_cuts_blackbox_cplex()
     h5 = Hdf5Sample(h5_filename)
     rhs = h5.get_array("cuts_cpx_rhs")
     h5.file.close()
-    @test length(rhs) == 22
+    @test length(rhs) > 0
 end