Files
composable_kernel/include/ck_tile/host/tensor_shuffle_utils.hpp
Khushbu Agarwal b11f53a484 Fix quant scale matrix layout for block scale gemm (#3079)
* Adding support for TiledPermuteN

* Adding test

* moving shuffle functions to common place

* resolving commit hook

* fix formatting
2025-10-27 13:56:07 -07:00

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2.8 KiB
C++
Executable File

#pragma once
#include <stdexcept>
namespace ck_tile {
template <typename T>
auto shuffle_aq(const ck_tile::HostTensor<T>* t, int block_aq_k)
{
if(t->get_lengths().size() != 2)
{
throw std::runtime_error("Host tensor is not rank 2 tensor.");
}
int m_ = t->get_lengths()[0];
int aqk_ = t->get_lengths()[1];
if(aqk_ % block_aq_k != 0)
{
throw std::runtime_error("shuffle_aq needs a aqk of multiple times of block_aq_k.");
}
ck_tile::HostTensor<T> t_view({m_, aqk_ / block_aq_k, block_aq_k});
std::copy(t->begin(), t->end(), t_view.begin());
return ck_tile::reference_permute(t_view, {1, 0, 2});
}
template <typename GemmConfig, typename T>
auto shuffle_b(const ck_tile::HostTensor<T>& t)
{
assert(t.get_lengths().size() == 2);
int n_ = t.get_lengths()[1];
int k_ = t.get_lengths()[0];
constexpr int divisor = GemmConfig::N_Warp_Tile == 32 ? 2 : 4;
ck_tile::HostTensor<T> t_view({n_ / GemmConfig::N_Warp_Tile,
GemmConfig::N_Warp_Tile,
k_ / GemmConfig::K_Warp_Tile,
divisor,
GemmConfig::K_Warp_Tile / divisor});
std::copy(t.begin(), t.end(), t_view.begin());
return ck_tile::reference_permute(t_view, {0, 2, 3, 1, 4});
}
template <typename GemmConfig, typename T>
auto shuffle_bq_permuteN(const ck_tile::HostTensor<T>& t)
{
assert(t.get_lengths().size() == 2);
int n_ = t.get_lengths()[1];
int bqk_ = t.get_lengths()[0];
constexpr int NRepeat = GemmConfig::N_Tile / GemmConfig::N_Warp_Tile / GemmConfig::N_Warp;
ck_tile::HostTensor<T> t_view(
{n_ / GemmConfig::N_Tile, GemmConfig::N_Warp, GemmConfig::N_Warp_Tile, NRepeat, bqk_});
std::copy(t.begin(), t.end(), t_view.begin());
return ck_tile::reference_permute(t_view, {0, 3, 1, 2, 4});
}
template <typename GemmConfig, typename T>
auto shuffle_b_permuteN(const ck_tile::HostTensor<T>& t)
{
assert(t.get_lengths().size() == 2);
int n_ = t.get_lengths()[1];
int k_ = t.get_lengths()[0];
constexpr int divisor = GemmConfig::N_Warp_Tile == 32 ? 2 : 4;
constexpr int NRepeat = GemmConfig::N_Tile / GemmConfig::N_Warp_Tile / GemmConfig::N_Warp;
ck_tile::HostTensor<T> t_view({n_ / GemmConfig::N_Tile,
GemmConfig::N_Warp,
GemmConfig::N_Warp_Tile,
NRepeat,
k_ / GemmConfig::K_Warp_Tile,
divisor,
GemmConfig::K_Warp_Tile / divisor});
std::copy(t.begin(), t.end(), t_view.begin());
return ck_tile::reference_permute(t_view, {0, 3, 1, 4, 5, 2, 6});
}
} // namespace ck_tile