Merge pull request #275 from scipopt/gaplimits

added gap limits

Author: matbesancon

Project.toml

@@ -11,7 +11,7 @@ SCIP_PaPILO_jll = "fc9abe76-a5e6-5fed-b0b7-a12f309cf031"
 SCIP_jll = "e5ac4fe4-a920-5659-9bf8-f9f73e9e79ce"
 
 [compat]
-MathOptInterface = "1"
+MathOptInterface = "1.7"
 OpenBLAS32_jll = "0.3"
 SCIP_PaPILO_jll = "800"
 SCIP_jll = "800"

src/MOI_wrapper.jl

@@ -209,10 +209,43 @@ end
 
 function MOI.set(o::Optimizer, ::MOI.TimeLimitSec, value)
     if value === nothing
-        MOI.set(o, MOI.RawOptimizerAttribute("limits/time"), SCIPinfinity(o))
+        return MOI.set(o, MOI.RawOptimizerAttribute("limits/time"), SCIPinfinity(o))
+    end
+    return MOI.set(o, MOI.RawOptimizerAttribute("limits/time"), value)
+end
+
+MOI.supports(::Optimizer, ::MOI.AbsoluteGapTolerance) = true
+function MOI.get(o::Optimizer, ::MOI.AbsoluteGapTolerance)
+    raw_value = MOI.get(o, MOI.RawOptimizerAttribute("limits/absgap"))
+    if raw_value == 0
+        return nothing
+    end
+    return raw_value
+end
+function MOI.set(o::Optimizer, ::MOI.AbsoluteGapTolerance, value)
+    if value === nothing
+        MOI.set(o, MOI.RawOptimizerAttribute("limits/absgap"), 0.0)
     else
-        MOI.set(o, MOI.RawOptimizerAttribute("limits/time"), value)
+        MOI.set(o, MOI.RawOptimizerAttribute("limits/absgap"), value)
     end
+    return nothing
+end
+
+MOI.supports(::Optimizer, ::MOI.RelativeGapTolerance) = true
+function MOI.get(o::Optimizer, ::MOI.RelativeGapTolerance)
+    raw_value = MOI.get(o, MOI.RawOptimizerAttribute("limits/gap"))
+    if raw_value == 0
+        return nothing
+    end
+    return raw_value
+end
+function MOI.set(o::Optimizer, ::MOI.RelativeGapTolerance, value)
+    if value === nothing
+        MOI.set(o, MOI.RawOptimizerAttribute("limits/gap"), 0.0)
+    else
+        MOI.set(o, MOI.RawOptimizerAttribute("limits/gap"), value)
+    end
+    return nothing
 end
 
 MOI.supports(::Optimizer, ::MOI.SolverVersion) = true