Provide explicit pool sizes and avoid RMM detail APIs (#4086)

This PR fixes up cuGraph to avoid usage that will soon be deprecated in RMM.

Depends on rapidsai/rmm#1417

Fixes #4066

Authors:
  - Mark Harris (https://github.com/harrism)

Approvers:
  - Chuck Hastings (https://github.com/ChuckHastings)

URL: #4086

cpp/include/cugraph/mtmg/resource_manager.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2023, NVIDIA CORPORATION.
+ * Copyright (c) 2023-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -106,9 +106,9 @@ class resource_manager_t {
     auto per_device_it = per_device_rmm_resources_.insert(
       std::pair{global_rank, std::make_shared<rmm::mr::cuda_memory_resource>()});
 #else
-    auto const [free, total] = rmm::detail::available_device_memory();
+    auto const [free, total] = rmm::available_device_memory();
     auto const min_alloc =
-      rmm::detail::align_down(std::min(free, total / 6), rmm::detail::CUDA_ALLOCATION_ALIGNMENT);
+      rmm::align_down(std::min(free, total / 6), rmm::CUDA_ALLOCATION_ALIGNMENT);
 
     auto per_device_it = per_device_rmm_resources_.insert(
       std::pair{global_rank,

cpp/tests/utilities/base_fixture.hpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020-2023, NVIDIA CORPORATION.
+ * Copyright (c) 2020-2024, NVIDIA CORPORATION.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -73,9 +73,8 @@ inline auto make_pool()
   // run more than 2 tests in parallel at the same time. Changes to this value could
   // effect the maximum amount of parallel tests, and therefore `tests/CMakeLists.txt`
   // `_CUGRAPH_TEST_PERCENT` default value will need to be audited.
-  auto const [free, total] = rmm::detail::available_device_memory();
-  auto const min_alloc =
-    rmm::detail::align_down(std::min(free, total / 6), rmm::detail::CUDA_ALLOCATION_ALIGNMENT);
+  auto const [free, total] = rmm::available_device_memory();
+  auto const min_alloc = rmm::align_down(std::min(free, total / 6), rmm::CUDA_ALLOCATION_ALIGNMENT);
   return rmm::mr::make_owning_wrapper<rmm::mr::pool_memory_resource>(make_cuda(), min_alloc);
 }