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[Refactor][Kernel] Add global helper to deduplicate vectorized memory ops (#35105)

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Signed-off-by: LopezCastroRoberto <rocastro@redhat.com>
Signed-off-by: LopezCastroRoberto <roberto.lopez.castro@udc.es>
Signed-off-by: Roberto L. Castro <38211239+LopezCastroRoberto@users.noreply.github.com>
This commit is contained in:
Roberto L. Castro
2026-02-28 01:28:17 +01:00
committed by GitHub
parent e3691988d0
commit a201ad72d8
6 changed files with 474 additions and 372 deletions
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28
csrc/quantization/fp4/nvfp4_quant_kernels.cu
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@@ -42,7 +42,7 @@ __global__ void __launch_bounds__(512, VLLM_BLOCKS_PER_SM(512))
Type const* __restrict__ in,
float const* __restrict__ SFScale,
uint32_t* __restrict__ out, uint32_t* __restrict__ SFout) {
using PackedVec = vllm::PackedVec<Type>;
using PackedVec = vllm::PackedVec<Type, CVT_FP4_PACK16>;
static constexpr int CVT_FP4_NUM_THREADS_PER_SF =
(CVT_FP4_SF_VEC_SIZE / CVT_FP4_ELTS_PER_THREAD);
@@ -71,13 +71,13 @@ __global__ void __launch_bounds__(512, VLLM_BLOCKS_PER_SM(512))
// If we are outside valid rows OR outside valid columns -> Use Zeros
bool valid = (rowIdx < numRows) && (elem_idx < numCols);
if constexpr (CVT_FP4_PACK16) {
ld256_or_zero_cg_u32<Type>(
in_vec, &reinterpret_cast<const uint32_t*>(in)[inOffset * 8],
valid);
ld256_cg_or_zero(reinterpret_cast<u32x8_t&>(in_vec),
&reinterpret_cast<const uint32_t*>(in)[inOffset * 8],
valid);
} else {
ld128_or_zero_cg_u32<Type>(
in_vec, &reinterpret_cast<const uint32_t*>(in)[inOffset * 4],
valid);
ld128_cg_or_zero(reinterpret_cast<uint4&>(in_vec),
&reinterpret_cast<const uint32_t*>(in)[inOffset * 4],
valid);
}
auto sf_out =
@@ -114,7 +114,7 @@ __global__ void __launch_bounds__(512, VLLM_BLOCKS_PER_SM(512))
float const* __restrict__ SFScale,
uint32_t* __restrict__ out,
uint32_t* __restrict__ SFout) {
using PackedVec = PackedVec<Type>;
using PackedVec = PackedVec<Type, CVT_FP4_PACK16>;
static constexpr int CVT_FP4_NUM_THREADS_PER_SF =
(CVT_FP4_SF_VEC_SIZE / CVT_FP4_ELTS_PER_THREAD);
@@ -139,13 +139,13 @@ __global__ void __launch_bounds__(512, VLLM_BLOCKS_PER_SM(512))
// If we are outside valid rows OR outside valid columns -> Use Zeros
bool valid = (rowIdx < numRows) && (elem_idx < numCols);
if constexpr (CVT_FP4_PACK16) {
ld256_or_zero_cg_u32<Type>(
in_vec, &reinterpret_cast<const uint32_t*>(in)[inOffset * 8],
valid);
ld256_cg_or_zero(reinterpret_cast<u32x8_t&>(in_vec),
&reinterpret_cast<const uint32_t*>(in)[inOffset * 8],
valid);
} else {
ld128_or_zero_cg_u32<Type>(
in_vec, &reinterpret_cast<const uint32_t*>(in)[inOffset * 4],
valid);
ld128_cg_or_zero(reinterpret_cast<uint4&>(in_vec),
&reinterpret_cast<const uint32_t*>(in)[inOffset * 4],
valid);
}
auto sf_out =