A few quick fixes to try to reduce max memory usage in the tests (#4570)

* A few quick fixes to try to reduce max memory usage in the tests

Signed-off-by: Robert (Bobby) Evans <bobby@apache.org>

* Copyright date

integration_tests/src/main/python/hash_aggregate_test.py

@@ -303,8 +303,9 @@ def get_params(init_list, marked_params=[]):
     _grpkey_short_full_neg_scale_decimals]
 
 #Any smaller precision takes way too long to process on the CPU
+# or results in using too much memory on the GPU
 @nightly_gpu_mem_consuming_case
-@pytest.mark.parametrize('precision', [38, 37, 36, 35, 34, 33, 32, 31, 30], ids=idfn)
+@pytest.mark.parametrize('precision', [38, 37, 36, 35, 34, 33, 32, 31], ids=idfn)
 def test_hash_reduction_decimal_overflow_sum(precision):
     constant = '9' * precision
     count = pow(10, 38 - precision)

integration_tests/src/main/python/parquet_write_test.py

@@ -1,4 +1,4 @@
-# Copyright (c) 2020-2021, NVIDIA CORPORATION.
+# Copyright (c) 2020-2022, NVIDIA CORPORATION.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -77,8 +77,7 @@ def limited_int96():
 parquet_map_gens = parquet_map_gens_sample + [
     MapGen(StructGen([['child0', StringGen()], ['child1', StringGen()]], nullable=False), FloatGen()),
     MapGen(StructGen([['child0', StringGen(nullable=True)]], nullable=False), StringGen())]
-parquet_write_gens_list = [
-    parquet_basic_gen + parquet_struct_gen + parquet_array_gen + parquet_decimal_gens + parquet_map_gens]
+parquet_write_gens_list = [parquet_basic_gen, parquet_decimal_gens] +  [ [single_gen] for single_gen in parquet_struct_gen + parquet_array_gen + parquet_map_gens]
 parquet_ts_write_options = ['INT96', 'TIMESTAMP_MICROS', 'TIMESTAMP_MILLIS']
 
 @pytest.mark.order(1) # at the head of xdist worker queue if pytest-order is installed