Modifications for benchmarking shgo

diff

diff --git a/benchmarks/benchmarks/optimize.py b/benchmarks/benchmarks/optimize.py
index 6696f7d..3a9abf6 100644
--- a/benchmarks/benchmarks/optimize.py
+++ b/benchmarks/benchmarks/optimize.py
@@ -17,6 +17,8 @@ try:
 except ImportError:
     pass
 
+from shgo import shgo
+
 from . import test_functions as funcs
 from . import go_benchmark_functions as gbf
 from .common import Benchmark
@@ -187,16 +189,29 @@ class _BenchOptimizers(Benchmark):
         res.nfev = self.function.nfev
         self.add_result(res, t1 - t0, 'DE')
 
+    def run_shgo(self):
+        self.function.nfev = 0
+
+        t0 = time.time()
+
+        res = shgo(self.fun, self.bounds)
+
+        t1 = time.time()
+        res.success = self.function.success(res.x)
+        res.nfev = self.function.nfev
+        self.add_result(res, t1 - t0, 'shgo')
+
     def bench_run_global(self, numtrials=50, methods=None):
         """
         Run the optimization tests for the required minimizers.
         """
 
         if methods is None:
-            methods = ['DE', 'basinh.']
+            methods = ['DE', 'basinh.', 'shgo']
 
         method_fun = {'DE': self.run_differentialevolution,
-                      'basinh.': self.run_basinhopping}
+                      'basinh.': self.run_basinhopping,
+                      'shgo': self.run_shgo}
 
         for i in range(numtrials):
             for m in methods:
@@ -424,7 +439,7 @@ class BenchGlobal(Benchmark):
     params = [
         list(_functions.keys()),
         ["success%", "<nfev>"],
-        ['DE', 'basinh.'],
+        ['DE', 'basinh.', 'shgo'],
     ]
     param_names = ["test function", "result type", "solver"]