Skip to content

Restore resource_cast memory limit check #1231

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
bdice wants to merge 2 commits into
base: release/26.06
Choose a base branch
from
Open

Restore resource_cast memory limit check #1231

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
7d66043
Restore resource_cast memory limit check
bdice May 17, 2026
aa2d665
Remove printf
bdice May 28, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
11 changes: 10 additions & 1 deletion cpp/src/utilities/cuda_helpers.cuh
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -9,13 +9,18 @@

#include <utilities/macros.cuh>

#include <cuda/memory_resource>

#include <thrust/host_vector.h>
#include <thrust/tuple.h>
#include <algorithm>
#include <mutex>
#include <raft/core/device_span.hpp>
#include <raft/util/cuda_utils.cuh>
#include <raft/util/cudart_utils.hpp>
#include <rmm/device_uvector.hpp>
#include <rmm/mr/limiting_resource_adaptor.hpp>
#include <rmm/mr/per_device_resource.hpp>
#include <shared_mutex>
#include <unordered_map>

Expand Down Expand Up @@ -242,7 +247,11 @@ inline size_t get_device_memory_size()
{
size_t free_mem, total_mem;
RAFT_CUDA_TRY(cudaMemGetInfo(&free_mem, &total_mem));
// TODO (bdice): Restore limiting adaptor check after updating CCCL to support resource_cast

auto res = rmm::mr::get_current_device_resource_ref();
auto limiting_adaptor = cuda::mr::resource_cast<rmm::mr::limiting_resource_adaptor>(&res);
if (limiting_adaptor) { return std::min(total_mem, limiting_adaptor->get_allocation_limit()); }

return total_mem;
}

Expand Down