'Run the optimization tests for the required minimizers.'

def bench_run_global(self, numtrials=50, methods=None):

    if (methods is None):
        methods = ['DE', 'basinh.']
    method_fun = {'DE': self.run_differentialevolution, 'basinh.': self.run_basinhopping}
    for i in range(numtrials):
        for m in methods:
            method_fun[m]()
