Skip to content

register pressure #3116

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

Merged
awni merged 1 commit into from
Feb 10, 2026
Merged

register pressure #3116

Changes from all commits
Commits
Show all changes
1 commit
Select commit
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
4 changes: 2 additions & 2 deletions mlx/backend/cuda/quantized/fp_quantize.cu
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -174,7 +174,7 @@ __global__ void fp_quantize_columnwise(
auto block_idx = cg::this_thread_block().group_index();
auto idx_in_block = cg::this_thread_block().thread_index();

constexpr int BLOCK_X = 32;
constexpr int BLOCK_X = 16;
constexpr int BLOCK_Y = 32;
constexpr int elem_per_byte = (bits == 8) ? 1 : 2;
constexpr int bytes_per_group = group_size / elem_per_byte;
Expand Down Expand Up @@ -323,7 +323,7 @@ fp_dequantize(const uint8_t* w, const uint8_t* scales, T* out, size_t size) {

inline std::tuple<dim3, dim3>
get_columnwise_quantize_launch_args(size_t size, int group_size, int M, int K) {
constexpr int BLOCK_X = 32;
constexpr int BLOCK_X = 16;
constexpr int BLOCK_Y = 32;
int rows_per_block = BLOCK_X;
int cols_per_block = BLOCK_Y * group_size;
Expand Down
Loading