 
 TYPED_TEST(GroupByTest, AggregationTestDeviceBlockSame)
 {
-  const int num_keys = 1<<12;
+  const int num_keys = 1<<8;
   const int num_values_per_key = this->THREAD_BLOCK_SIZE;
   auto input = this->create_input(num_keys, num_values_per_key, 1000, 1000);
   this->build_aggregation_table_device(input);


TYPED_TEST(GroupByTest, AggregationTestDeviceWarpSame)
{
  const int num_keys = 1<<15;
  const int num_values_per_key = 32;
  auto input = this->create_input(num_keys, num_values_per_key, 1000, 1000);
  this->build_aggregation_table_device(input);


TYPED_TEST(GroupByTest, GroupBy)
{
  const int num_keys = 1<<12;
  const int num_values_per_key = 1;
  auto input = this->create_input(num_keys, num_values_per_key, 1000, 1000);
  const unsigned int result_size = this->groupby(input.first, input.second);
