[feat] support fa3 backend for pd disaggregated (#2695)
Deploy GitHub Pages / deploy (push) Has been cancelled

* support fa3 backend run in pd disaggregated

* support fa3 backend run in pd disaggregated

* support fa3 backend run in pd disaggregated

* support fa3 backend run in pd disaggregated

* delete use_fast_ffn
This commit is contained in:
Yuanle Liu
2025-07-03 22:33:27 +08:00
committed by GitHub
parent 00863c43fd
commit 240bdac2a4
26 changed files with 455 additions and 139 deletions
+59 -60
View File
@@ -26,7 +26,7 @@ index 15b22ca..63e7fb7 100644
@@ -1,4 +1,4 @@
-import torch
+import paddle
from . import jit
from .jit_kernels import (
diff --git a/deep_gemm/include/deep_gemm/scheduler.cuh b/deep_gemm/include/deep_gemm/scheduler.cuh
@@ -53,7 +53,7 @@ index c17d466..6fdc52f 100644
-from torch.utils.cpp_extension import CUDA_HOME
+from ..paddle_utils import CUDA_HOME
from typing import Tuple
from . import interleave_ffma
diff --git a/deep_gemm/jit/interleave_ffma.py b/deep_gemm/jit/interleave_ffma.py
index fcb377e..db9d6f3 100644
@@ -65,8 +65,8 @@ index fcb377e..db9d6f3 100644
import subprocess
-from torch.utils.cpp_extension import CUDA_HOME
+from ..paddle_utils import CUDA_HOME
def run_cuobjdump(file_path):
diff --git a/deep_gemm/jit/runtime.py b/deep_gemm/jit/runtime.py
index 66c370a..4761426 100644
@@ -78,7 +78,7 @@ index 66c370a..4761426 100644
-import torch
+import paddle
from typing import Optional
from .template import map_ctype
@@ -35,7 +35,7 @@ class Runtime:
assert len(args) == len(self.args), f'Expected {len(self.args)} arguments, got {len(args)}'
@@ -100,8 +100,8 @@ index ead37f5..51b02c1 100644
-import torch
+import paddle
from typing import Any, Dict, Iterable, Tuple
# Name map for Python `eval`
typename_map: Dict[Any, str] = {
**{t: t.__name__ for t in (bool, int, float)},
@@ -116,15 +116,15 @@ index ead37f5..51b02c1 100644
+ paddle.float8_e4m3fn: 'paddle.float8_e4m3fn',
+ paddle.device.cuda.Stream: "paddle.device.cuda.Stream",
}
# `ctype` map for Python casting
ctype_map: Dict[Any, Any] = {
**{t: getattr(ctypes, f'c_{t.__name__}') for t in (bool, int, float)},
- **{t: ctypes.c_void_p for t in (torch.int, torch.float, torch.bfloat16, torch.float8_e4m3fn, torch.cuda.Stream)},
+ **{t: ctypes.c_void_p for t in (paddle.int32, paddle.float32, paddle.bfloat16, paddle.float8_e4m3fn, paddle.device.cuda.Stream)},
}
@@ -27,25 +27,25 @@ genc_map = {
bool: ('bool', 'bool'),
int: ('int', 'int'),
@@ -140,8 +140,8 @@ index ead37f5..51b02c1 100644
+ paddle.float8_e4m3fn: ('void*', '__nv_fp8_e4m3*'),
+ paddle.device.cuda.Stream: ('void*', 'cudaStream_t'),
}
def map_ctype(value: Any) -> Any:
if hasattr(value, 'data_ptr'):
- if value.dtype == torch.int:
@@ -171,11 +171,11 @@ index cb438b7..44aa0ed 100644
+import paddle
from functools import lru_cache
from typing import Tuple
@@ -166,20 +166,20 @@ def get_best_configs(m: int, n: int, k: int, num_groups: int, num_sms: int,
return num_min_sms, best_block_m, best_block_n, best_num_stages, best_tma_multicast_config, best_smem_config
-def gemm_fp8_fp8_bf16_nt(lhs: Tuple[torch.Tensor, torch.Tensor],
- rhs: Tuple[torch.Tensor, torch.Tensor],
- out: torch.Tensor) -> None:
@@ -189,7 +189,7 @@ index cb438b7..44aa0ed 100644
The LHS scaling tensor requires TMA-aligned transposed format, if your input does not match the requirement,
- this function will do a transposing with a set of slow PyTorch operations.
+ this function will do a transposing with a set of slow paddle operations.
Arguments:
- lhs: the first element is an FP8 tensor (typed `torch.float8_e4m3fn`) of shape `[m, k]`,
+ lhs: the first element is an FP8 tensor (typed `paddle.float8_e4m3fn`) of shape `[m, k]`,
@@ -202,10 +202,10 @@ index cb438b7..44aa0ed 100644
@@ -189,22 +189,22 @@ def gemm_fp8_fp8_bf16_nt(lhs: Tuple[torch.Tensor, torch.Tensor],
n, k_ = rhs.shape
m_, n_ = out.shape
- assert n % 64 == 0 and k % 128 == 0
+ # assert n % 64 == 0 and k % 128 == 0
# Type and shape checks
- assert m == m_ and n == n_ and k == k_
- assert n > 0 and k > 0
@@ -223,13 +223,13 @@ index cb438b7..44aa0ed 100644
+ # assert rhs.dtype == paddle.float8_e4m3fn and rhs_scales.dtype == paddle.float32
+ # assert out.dtype == paddle.bfloat16
+ # assert lhs.is_contiguous() and rhs.is_contiguous() and out.is_contiguous()
# LHS scales must be transposed for TMA load, but not for RHS scales
# NOTES: `get_tma_aligned_lhs_scales` may launch a kernel if not processed by previous kernels
lhs_scales = get_col_major_tma_aligned_tensor(lhs_scales)
- assert rhs_scales.is_contiguous()
+ # assert rhs_scales.is_contiguous()
# Do nothing if `m` is zero
if m == 0:
@@ -214,7 +214,7 @@ def gemm_fp8_fp8_bf16_nt(lhs: Tuple[torch.Tensor, torch.Tensor],
@@ -264,12 +264,12 @@ index 3b518c9..ba776bd 100644
-import torch
+import paddle
from typing import Tuple
from .gemm import get_best_configs, get_block_n_padding_for_smem_d
@@ -37,25 +37,25 @@ gemm_t::run(out, rhs_scales, grouped_layout,
"""
-def m_grouped_gemm_fp8_fp8_bf16_nt_contiguous(lhs: Tuple[torch.Tensor, torch.Tensor],
- rhs: Tuple[torch.Tensor, torch.Tensor],
- out: torch.Tensor, m_indices: torch.Tensor) -> None:
@@ -285,7 +285,7 @@ index 3b518c9..ba776bd 100644
+ this function will do a transposing with a set of slow Pypaddle operations.
On the M axis, inputs are grouped into several batches, of which batch sizes aligned to
`get_m_alignment_for_contiguous_layout()` (128).
Arguments:
- lhs: the first element is an FP8 tensor (typed `torch.float8_e4m3fn`) of shape `[m_sum, k]`,
+ lhs: the first element is an FP8 tensor (typed `paddle.float8_e4m3fn`) of shape `[m_sum, k]`,
@@ -301,7 +301,7 @@ index 3b518c9..ba776bd 100644
Values of `m_indices` in every-m-alignment-block must also be the same.
@@ -68,19 +68,19 @@ def m_grouped_gemm_fp8_fp8_bf16_nt_contiguous(lhs: Tuple[torch.Tensor, torch.Ten
m__ = m_indices.numel()
# Type and shape checks
- assert m == m_ == m__ and k == k_ and n == n_
- assert lhs_scales.shape == (m, (k + 127) // 128)
@@ -321,12 +321,12 @@ index 3b518c9..ba776bd 100644
+ # assert m_indices.dtype == paddle.int32
+ # assert lhs.is_contiguous() and rhs.is_contiguous()
+ # assert out.is_contiguous() and m_indices.is_contiguous()
# LHS scales must be transposed for TMA load, but not for RHS scales
lhs_scales = get_col_major_tma_aligned_tensor(lhs_scales)
- assert rhs_scales.is_contiguous()
+ # assert rhs_scales.is_contiguous()
# Do nothing if `m` is zero
if m == 0:
@@ -92,7 +92,7 @@ def m_grouped_gemm_fp8_fp8_bf16_nt_contiguous(lhs: Tuple[torch.Tensor, torch.Ten
@@ -357,8 +357,8 @@ index 3b518c9..ba776bd 100644
)
@@ -118,22 +118,22 @@ def m_grouped_gemm_fp8_fp8_bf16_nt_contiguous(lhs: Tuple[torch.Tensor, torch.Ten
runtime(*args)
-def m_grouped_gemm_fp8_fp8_bf16_nt_masked(lhs: Tuple[torch.Tensor, torch.Tensor],
- rhs: Tuple[torch.Tensor, torch.Tensor],
- out: torch.Tensor, masked_m: torch.Tensor, expected_m: int) -> None:
@@ -374,7 +374,7 @@ index 3b518c9..ba776bd 100644
+ this function will do a transposing with a set of slow paddle operations.
Moreover, this alignment requirement is different with the contiguous-format kernel, as we require that each batch
should be separately transposed.
Arguments:
- lhs: the first element is an FP8 tensor (typed `torch.float8_e4m3fn`) of shape `[num_groups, m_max, k]`,
+ lhs: the first element is an FP8 tensor (typed `paddle.float8_e4m3fn`) of shape `[num_groups, m_max, k]`,
@@ -386,7 +386,7 @@ index 3b518c9..ba776bd 100644
masked_m: a tensor of shape `[num_groups]`, `masked_m[i]` records actual rows of the `lhs[i]` matrix to compute
@@ -149,21 +149,21 @@ def m_grouped_gemm_fp8_fp8_bf16_nt_masked(lhs: Tuple[torch.Tensor, torch.Tensor]
num_groups___ = masked_m.numel()
# Type and shape checks
- assert num_groups == num_groups_ == num_groups__ == num_groups___
- assert m == m_ and n == n_ and k == k_
@@ -410,16 +410,16 @@ index 3b518c9..ba776bd 100644
+ # assert masked_m.dtype == paddle.int32
+ # assert lhs.is_contiguous() and rhs.is_contiguous()
+ # assert out.is_contiguous() and masked_m.is_contiguous()
# LHS scales must be transposed for TMA load, but not for RHS scales
lhs_scales = get_col_major_tma_aligned_tensor(lhs_scales)
- assert rhs_scales.is_contiguous()
+ # assert rhs_scales.is_contiguous()
# Auto-tuning with compilation
global includes, template
@@ -176,7 +176,7 @@ def m_grouped_gemm_fp8_fp8_bf16_nt_masked(lhs: Tuple[torch.Tensor, torch.Tensor]
args = (lhs, lhs_scales, rhs, rhs_scales, out,
masked_m, m,
- torch.cuda.current_stream(), num_sms, smem_config[0])
@@ -454,11 +454,11 @@ index 6ed6749..9e1d70f 100644
-import torch
+import paddle
from typing import Any, Dict
from ..jit import build, cpp_format, generate, Runtime
@@ -51,10 +51,10 @@ class JITTuner:
continue
# Measure performance with L2 flush and a large GEMM kernel before to reduce overhead between kernels
- start_event = torch.cuda.Event(enable_timing=True)
- end_event = torch.cuda.Event(enable_timing=True)
@@ -478,9 +478,9 @@ index c6da56b..a17b1b1 100644
@@ -1,4 +1,4 @@
-import torch
+import paddle
_num_sms = None
@@ -11,7 +11,7 @@ def set_num_sms(num_sms: int) -> None:
num_sms: the desired maximum SM count for all GEMM kernels to use.
"""
@@ -488,8 +488,8 @@ index c6da56b..a17b1b1 100644
- assert 0 < num_sms <= torch.cuda.get_device_properties(device='cuda').multi_processor_count
+ assert 0 < num_sms <= paddle.device.cuda.get_device_properties().multi_processor_count
_num_sms = num_sms
@@ -25,7 +25,7 @@ def get_num_sms() -> int:
"""
global _num_sms
@@ -497,12 +497,12 @@ index c6da56b..a17b1b1 100644
- _num_sms = torch.cuda.get_device_properties(device='cuda').multi_processor_count
+ _num_sms = paddle.device.cuda.get_device_properties().multi_processor_count
return _num_sms
@@ -74,9 +74,9 @@ def get_tma_aligned_size(x: int, element_size: int) -> int:
return ceil_div(x, alignment) * alignment
-def get_col_major_tma_aligned_tensor(x: torch.Tensor) -> torch.Tensor:
+def get_col_major_tma_aligned_tensor(x: paddle.Tensor) -> paddle.Tensor:
"""
@@ -510,7 +510,7 @@ index c6da56b..a17b1b1 100644
+ Returns TMA-aligned transposed format of the input tensor. `paddle.transpose` will be called if necessary.
If the input tensor is already column-major layout and 16-byte aligned along the M axis
(thus meets the requirement of LHS scaling tensor in DeepGEMM), this function will do nothing.
@@ -92,18 +92,20 @@ def get_col_major_tma_aligned_tensor(x: torch.Tensor) -> torch.Tensor:
m, n = x.shape[-2], x.shape[-1]
aligned_m = get_tma_aligned_size(m, x.element_size())
@@ -519,14 +519,14 @@ index c6da56b..a17b1b1 100644
+ if x.strides[0] == 1 and x.strides[1] == aligned_m:
return x
x, remove_dim = x.unsqueeze(0), True
b = x.shape[0]
# The last kernel gives a column-major TMA aligned layout
- if x.stride(0) == aligned_m * n and x.stride(1) == 1 and x.stride(2) == aligned_m:
+ if x.strides[0] == aligned_m * n and x.strides[1] == 1 and x.strides[2] == aligned_m:
return x.squeeze(0) if remove_dim else x
# Normal layout requires transposing
- aligned_x = torch.transpose(torch.empty((b, n, aligned_m), device=x.device, dtype=x.dtype), 1, 2)
+ aligned_x = paddle.transpose(
@@ -574,20 +574,20 @@ index d5cdd01..5237f09 100644
-import torch.distributed as dist
+import paddle
+import paddle.distributed as dist
def bench(fn, num_warmups: int = 5, num_tests: int = 10,
high_precision: bool = False):
# Flush L2 cache with 256 MB data
- torch.cuda.synchronize()
- cache = torch.empty(int(256e6 // 4), dtype=torch.int, device='cuda')
+ paddle.device.cuda.synchronize()
+ paddle.device.synchronize()
+ cache = paddle.empty((int(256e6 // 4)), dtype=paddle.int32)
cache.zero_()
# Warmup
@@ -18,18 +18,18 @@ def bench(fn, num_warmups: int = 5, num_tests: int = 10,
# Add a large kernel to eliminate the CPU launch overhead
if high_precision:
- x = torch.randn((8192, 8192), dtype=torch.float, device='cuda')
@@ -595,7 +595,7 @@ index d5cdd01..5237f09 100644
+ x = paddle.randn((8192, 8192), dtype=paddle.float32)
+ y = paddle.randn((8192, 8192), dtype=paddle.float32)
x @ y
# Testing
- start_event = torch.cuda.Event(enable_timing=True)
- end_event = torch.cuda.Event(enable_timing=True)
@@ -607,9 +607,9 @@ index d5cdd01..5237f09 100644
end_event.record()
- torch.cuda.synchronize()
+ paddle.device.synchronize()
return start_event.elapsed_time(end_event) / num_tests
@@ -106,21 +106,21 @@ def bench_kineto(fn, kernel_names, num_tests: int = 30, suppress_kineto_output:
# Profile
suppress = suppress_stdout_stderr if suppress_kineto_output and not using_nsys else empty_suppress
@@ -636,8 +636,7 @@ index d5cdd01..5237f09 100644
- torch.empty(flush_l2_size, dtype=torch.int, device='cuda').zero_()
+ paddle.empty(flush_l2_size, dtype=paddle.int32).zero_()
fn()
if not using_nsys:
--
2.43.0
if not using_nsys:
--
2.43.0