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chore: import upstream snapshot with attribution
2026-07-13 13:37:14 +08:00

469 lines
21 KiB
C++

/******************************************************************************
* Copyright (c) 2024, Tri Dao.
******************************************************************************/
#include <paddle/extension.h>
#include <paddle/phi/common/data_type.h>
#include <vector>
#include "causal_conv1d.h"
#define CHECK_SHAPE(x, ...) PD_CHECK(x.dims() == common::make_ddim({__VA_ARGS__}), #x " must have shape (" #__VA_ARGS__ ")")
#define DISPATCH_ITYPE_FLOAT_AND_HALF_AND_BF16(ITYPE, NAME, ...) \
if (ITYPE == paddle::DataType::FLOAT16) { \
using input_t = phi::dtype::float16; \
__VA_ARGS__(); \
} else if (ITYPE == paddle::DataType::BFLOAT16) { \
using input_t = phi::dtype::bfloat16; \
__VA_ARGS__(); \
} else if (ITYPE == paddle::DataType::FLOAT32) { \
using input_t = float; \
__VA_ARGS__(); \
} else { \
PADDLE_THROW(#NAME, " not implemented for input type '", ITYPE, "'"); \
}
#define DISPATCH_WTYPE_FLOAT_AND_HALF_AND_BF16(WTYPE, NAME, ...) \
if (WTYPE == paddle::DataType::FLOAT16) { \
using weight_t = phi::dtype::float16; \
__VA_ARGS__(); \
} else if (WTYPE == paddle::DataType::BFLOAT16) { \
using weight_t = phi::dtype::bfloat16; \
__VA_ARGS__(); \
} else if (WTYPE == paddle::DataType::FLOAT32) { \
using weight_t = float; \
__VA_ARGS__(); \
} else { \
PADDLE_THROW(#NAME, " not implemented for weight type '", WTYPE, "'"); \
}
template<typename input_t, typename weight_t>
void causal_conv1d_fwd_cuda(ConvParamsBase &params, cudaStream_t stream);
template <typename input_t, typename weight_t>
void causal_conv1d_channellast_fwd_cuda(ConvParamsBase &params, cudaStream_t stream);
template<typename input_t, typename weight_t>
void causal_conv1d_bwd_cuda(ConvParamsBwd &params, cudaStream_t stream);
template<typename input_t, typename weight_t>
void causal_conv1d_channellast_bwd_cuda(ConvParamsBwd &params, cudaStream_t stream);
template<typename input_t, typename weight_t>
void causal_conv1d_update_cuda(ConvParamsBase &params, cudaStream_t stream);
void set_conv_params_fwd(ConvParamsBase &params,
// sizes
const size_t batch,
const size_t dim,
const size_t seqlen,
const size_t width,
// device pointers
const paddle::Tensor x,
const paddle::Tensor weight,
const paddle::Tensor out,
void* bias_ptr,
bool silu_activation) {
// Reset the parameters
memset(&params, 0, sizeof(params));
params.batch = batch;
params.dim = dim;
params.seqlen = seqlen;
params.width = width;
params.silu_activation = silu_activation;
// Set the pointers and strides.
params.x_ptr = const_cast<void*>(x.data());
params.weight_ptr = const_cast<void*>(weight.data());
params.bias_ptr = const_cast<void*>(bias_ptr);
params.out_ptr = const_cast<void*>(out.data());
// All stride are in elements, not bytes.
params.x_batch_stride = x.strides()[0];
params.x_c_stride = x.strides()[1];
params.x_l_stride = x.strides()[x.strides().size() - 1];
params.weight_c_stride = weight.strides()[0];
params.weight_width_stride = weight.strides()[1];
params.out_batch_stride = out.strides()[0];
params.out_c_stride = out.strides()[1];
params.out_l_stride = out.strides()[out.strides().size() - 1];
}
void set_conv_params_bwd(ConvParamsBwd &params,
// sizes
const size_t batch,
const size_t dim,
const size_t seqlen,
const size_t width,
// device pointers
const paddle::Tensor x,
const paddle::Tensor weight,
void* bias_ptr,
const paddle::Tensor dout,
const paddle::Tensor dx,
const paddle::Tensor dweight,
void* dbias_ptr,
bool silu_activation) {
// Pass in "dout" instead of "out", we're not gonna use "out" at all.
set_conv_params_fwd(params, batch, dim, seqlen, width,
x, weight, dout, bias_ptr, silu_activation);
// Set the pointers and strides.
params.dout_ptr = const_cast<void*>(dout.data());
params.dx_ptr = const_cast<void*>(dx.data());
params.dweight_ptr = const_cast<void*>(dweight.data());
params.dbias_ptr = const_cast<void*>(dbias_ptr);
// All stride are in elements, not bytes.
params.dout_batch_stride = dout.strides()[0];
params.dout_c_stride = dout.strides()[1];
params.dout_l_stride = dout.strides()[2];
params.dweight_c_stride = dweight.strides()[0];
params.dweight_width_stride = dweight.strides()[1];
params.dx_batch_stride = dx.strides()[0];
params.dx_c_stride = dx.strides()[1];
params.dx_l_stride = dx.strides()[2];
}
paddle::Tensor
causal_conv1d_fwd(const paddle::Tensor &x, const paddle::Tensor &weight,
const std::optional<paddle::Tensor> &bias_,
const std::optional<paddle::Tensor> &seq_idx_,
const std::optional<paddle::Tensor> &initial_states_,
std::optional<paddle::Tensor> &final_states_out_,
bool silu_activation) {
auto input_type = x.dtype();
auto weight_type = weight.dtype();
PD_CHECK(input_type == paddle::DataType::FLOAT32 || input_type == paddle::DataType::FLOAT16 || input_type == paddle::DataType::BFLOAT16);
PD_CHECK(weight_type == paddle::DataType::FLOAT32 || weight_type == paddle::DataType::FLOAT16 || weight_type == paddle::DataType::BFLOAT16);
PD_CHECK(x.is_gpu());
PD_CHECK(weight.is_gpu());
const auto sizes = x.dims();
const int batch_size = sizes[0];
const int dim = sizes[1];
const int seqlen = sizes[2];
const int width = weight.dims()[weight.dims().size() - 1];
CHECK_SHAPE(x, batch_size, dim, seqlen);
CHECK_SHAPE(weight, dim, width);
PD_CHECK(x.strides()[2] == 1 || x.strides()[1] == 1);
const bool is_channel_last = x.strides()[1] == 1 && x.strides()[2] > 1;
if (is_channel_last) {
PD_CHECK(dim % 8 == 0, "causal_conv1d only supports channel dimension divisible by 8 for now");
PD_CHECK(x.strides()[2] % 8 == 0 and x.strides()[0] % 8 == 0, "causal_conv1d with channel last layout requires strides (x.strides()[0] and x.strides()[2]) to be multiples of 8");
}
PD_CHECK(width >= 2 && width <= 4, "causal_conv1d only supports width between 2 and 4");
if (bias_.has_value()) {
auto bias = bias_.value();
PD_CHECK(bias.dtype() == weight_type);
PD_CHECK(bias.is_gpu());
PD_CHECK(bias.strides()[bias.strides().size() - 1] == 1);
CHECK_SHAPE(bias, dim);
}
if (seq_idx_.has_value()) {
PD_CHECK(is_channel_last, "seq_idx is only supported for channel last layout");
auto seq_idx = seq_idx_.value();
PD_CHECK(seq_idx.dtype() == paddle::DataType::INT32 || seq_idx.dtype() == paddle::DataType::INT64);
PD_CHECK(seq_idx.is_gpu());
// PD_CHECK(seq_idx.is_contiguous());
CHECK_SHAPE(seq_idx, batch_size, seqlen);
}
paddle::Tensor out = paddle::empty_like(x);
// NOTE: new added
if (is_channel_last) {
out = paddle::experimental::as_strided(out, {batch_size, dim, seqlen}, {dim * seqlen, 1, dim});
}
ConvParamsBase params;
set_conv_params_fwd(params, batch_size, dim, seqlen, width, x, weight, out,
bias_.has_value() ? const_cast<void*>(bias_.value().data()) : nullptr,
silu_activation);
if (seq_idx_.has_value()) {
params.seq_idx_ptr = const_cast<void*>(seq_idx_.value().data());
} else {
params.seq_idx_ptr = nullptr;
}
if (initial_states_.has_value()) {
PD_CHECK(is_channel_last, "initial_states is only supported for channel last layout");
auto initial_states = initial_states_.value();
PD_CHECK(initial_states.dtype() == input_type);
PD_CHECK(initial_states.is_gpu());
CHECK_SHAPE(initial_states, batch_size, dim, width - 1);
PD_CHECK(initial_states.strides()[1] == 1);
params.initial_states_ptr = const_cast<void*>(initial_states.data());
params.initial_states_batch_stride = initial_states.strides()[0];
params.initial_states_c_stride = initial_states.strides()[1];
params.initial_states_l_stride = initial_states.strides()[2];
} else {
params.initial_states_ptr = nullptr;
}
if (final_states_out_.has_value()) {
PD_CHECK(is_channel_last, "final_states is only supported for channel last layout");
auto final_states = final_states_out_.value();
PD_CHECK(final_states.dtype() == input_type);
PD_CHECK(final_states.is_gpu());
CHECK_SHAPE(final_states, batch_size, dim, width - 1);
PD_CHECK(final_states.strides()[1] == 1);
params.final_states_ptr = const_cast<void*>(final_states.data());
params.final_states_batch_stride = final_states.strides()[0];
params.final_states_c_stride = final_states.strides()[1];
params.final_states_l_stride = final_states.strides()[2];
} else {
params.final_states_ptr = nullptr;
}
// Otherwise the kernel will be launched from cuda:0 device
// Cast to char to avoid compiler warning about narrowing
auto stream = x.stream();
DISPATCH_ITYPE_FLOAT_AND_HALF_AND_BF16(x.dtype(), "causal_conv1d_fwd", [&] {
DISPATCH_WTYPE_FLOAT_AND_HALF_AND_BF16(weight.dtype(), "causal_conv1d_fwd", [&] {
if (!is_channel_last) {
causal_conv1d_fwd_cuda<input_t, weight_t>(params, stream);
} else {
causal_conv1d_channellast_fwd_cuda<input_t, weight_t>(params, stream);
}
});
});
return out;
}
std::vector<paddle::Tensor>
causal_conv1d_bwd(const paddle::Tensor &x, const paddle::Tensor &weight,
const std::optional<paddle::Tensor> &bias_,
paddle::Tensor &dout,
const std::optional<paddle::Tensor> &seq_idx_,
const std::optional<paddle::Tensor> &initial_states_,
const std::optional<paddle::Tensor> &dfinal_states_,
std::optional<paddle::Tensor> &dx_,
bool return_dinitial_states,
bool silu_activation) {
auto input_type = x.dtype();
auto weight_type = weight.dtype();
PD_CHECK(input_type == paddle::DataType::FLOAT32 || input_type == paddle::DataType::FLOAT16 || input_type == paddle::DataType::BFLOAT16);
PD_CHECK(weight_type == paddle::DataType::FLOAT32 || weight_type == paddle::DataType::FLOAT16 || weight_type == paddle::DataType::BFLOAT16);
PD_CHECK(x.is_gpu());
PD_CHECK(weight.is_gpu());
PD_CHECK(dout.is_gpu());
const auto sizes = x.dims();
const int batch_size = sizes[0];
const int dim = sizes[1];
const int seqlen = sizes[2];
const int width = weight.dims()[weight.dims().size() - 1];
PD_CHECK(width >= 2 && width <= 4, "causal_conv1d only supports width between 2 and 4");
CHECK_SHAPE(x, batch_size, dim, seqlen);
CHECK_SHAPE(weight, dim, width);
CHECK_SHAPE(dout, batch_size, dim, seqlen);
PD_CHECK(x.strides()[2] == 1 || x.strides()[1] == 1);
const bool is_channel_last = x.strides()[1] == 1 && x.strides()[2] > 1;
// NOTE: 由于缺少contiguous算子,所以在外面做。
// if (!is_channel_last && dout.stride(2) != 1) { dout = dout.contiguous(); }
// if (is_channel_last && dout.stride(1) != 1) { dout = dout.transpose({0, 2, 1}).contiguous().transpose({0, 2, 1}); }
if (is_channel_last) {
PD_CHECK(dim % 8 == 0, "causal_conv1d only supports channel dimension divisible by 8 for now");
PD_CHECK(x.strides()[2] % 8 == 0 and x.strides()[0] % 8 == 0, "causal_conv1d with channel last layout requires strides (x.strides()[0] and x.strides()[2]) to be multiples of 8");
PD_CHECK(dout.strides()[2] % 8 == 0 and dout.strides()[0] % 8 == 0, "causal_conv1d with channel last layout requires strides (dout.strides()[0] and dout.strides()[2]) to be multiples of 8");
}
if (bias_.has_value()) {
auto bias = bias_.value();
PD_CHECK(bias.dtype() == weight_type);
PD_CHECK(bias.is_gpu());
PD_CHECK(bias.strides()[bias.strides().size() - 1] == 1);
CHECK_SHAPE(bias, dim);
}
if (seq_idx_.has_value()) {
PD_CHECK(is_channel_last, "seq_idx only supported for channel last layout");
auto seq_idx = seq_idx_.value();
PD_CHECK(seq_idx.dtype() == paddle::DataType::INT32 || seq_idx.dtype() == paddle::DataType::INT64);
PD_CHECK(seq_idx.is_gpu());
// PD_CHECK(seq_idx.is_contiguous());
CHECK_SHAPE(seq_idx, batch_size, seqlen);
}
paddle::Tensor dx;
if (dx_.has_value()) {
dx = dx_.value();
PD_CHECK(dx.dtype() == input_type);
PD_CHECK(dx.is_gpu());
CHECK_SHAPE(dx, batch_size, dim, seqlen);
if (!is_channel_last) { PD_CHECK(dx.strides()[2] == 1); }
if (is_channel_last) { PD_CHECK(dx.strides()[1] == 1); }
} else {
dx = paddle::empty_like(x);
if (is_channel_last) {
dx = paddle::experimental::as_strided(dx, {batch_size, dim, seqlen}, {dim * seqlen, 1, dim});
}
}
// Otherwise the kernel will be launched from cuda:0 device
// Cast to char to avoid compiler warning about narrowing
// make sure dweight and dbias dtype paddle::DataType::FLOAT32
paddle::Tensor dweight = paddle::experimental::zeros_like(weight, paddle::DataType::FLOAT32);
paddle::Tensor dbias;
if (bias_.has_value()) { dbias = paddle::experimental::zeros_like(bias_.value(), paddle::DataType::FLOAT32); }
ConvParamsBwd params;
set_conv_params_bwd(params, batch_size, dim, seqlen, width,
x, weight, bias_.has_value() ? const_cast<void*>(bias_.value().data()) : nullptr,
dout, dx, dweight, bias_.has_value() ? const_cast<void*>(dbias.data()) : nullptr,
silu_activation);
if (seq_idx_.has_value()) {
params.seq_idx_ptr = const_cast<void*>(seq_idx_.value().data());
} else {
params.seq_idx_ptr = nullptr;
}
if (initial_states_.has_value()) {
PD_CHECK(is_channel_last, "initial_states is only supported for channel last layout");
auto initial_states = initial_states_.value();
PD_CHECK(initial_states.dtype() == input_type);
PD_CHECK(initial_states.is_gpu());
CHECK_SHAPE(initial_states, batch_size, dim, width - 1);
PD_CHECK(initial_states.strides()[1] == 1);
params.initial_states_ptr = const_cast<void*>(initial_states.data());
params.initial_states_batch_stride = initial_states.strides()[0];
params.initial_states_c_stride = initial_states.strides()[1];
params.initial_states_l_stride = initial_states.strides()[2];
} else {
params.initial_states_ptr = nullptr;
}
if (dfinal_states_.has_value()) {
PD_CHECK(is_channel_last, "dfinal_states is only supported for channel last layout");
auto dfinal_states = dfinal_states_.value();
PD_CHECK(dfinal_states.dtype() == input_type);
PD_CHECK(dfinal_states.is_gpu());
CHECK_SHAPE(dfinal_states, batch_size, dim, width - 1);
params.dfinal_states_ptr = const_cast<void*>(dfinal_states.data());
params.dfinal_states_batch_stride = dfinal_states.strides()[0];
params.dfinal_states_c_stride = dfinal_states.strides()[1];
params.dfinal_states_l_stride = dfinal_states.strides()[2];
} else {
params.dfinal_states_ptr = nullptr;
}
paddle::Tensor dinitial_states;
if (return_dinitial_states) {
dinitial_states = paddle::experimental::transpose(paddle::empty({batch_size, width - 1, dim}, x.dtype(), x.place()), {0, 2, 1});
PD_CHECK(dinitial_states.strides()[1] == 1);
params.dinitial_states_ptr = const_cast<void*>(dinitial_states.data());
params.dinitial_states_batch_stride = dinitial_states.strides()[0];
params.dinitial_states_c_stride = dinitial_states.strides()[1];
params.dinitial_states_l_stride = dinitial_states.strides()[2];
} else {
params.dinitial_states_ptr = nullptr;
}
auto stream = dx.stream();
DISPATCH_ITYPE_FLOAT_AND_HALF_AND_BF16(x.dtype(), "causal_conv1d_bwd", [&] {
DISPATCH_WTYPE_FLOAT_AND_HALF_AND_BF16(weight.dtype(), "causal_conv1d_bwd", [&] {
if (!is_channel_last) {
causal_conv1d_bwd_cuda<input_t, weight_t>(params, stream);
} else {
causal_conv1d_channellast_bwd_cuda<input_t, weight_t>(params, stream);
}
});
});
return {dx, dweight.cast(weight.dtype()), bias_.has_value() ? dbias.cast(bias_.value().dtype()) : dbias, dinitial_states};
}
paddle::Tensor
causal_conv1d_update(const paddle::Tensor &x,
const paddle::Tensor &conv_state,
const paddle::Tensor &weight,
const std::optional<paddle::Tensor> &bias_,
bool silu_activation,
const std::optional<paddle::Tensor> &cache_seqlens_
) {
auto input_type = x.dtype();
auto weight_type = weight.dtype();
PD_CHECK(input_type == paddle::DataType::FLOAT32 || input_type == paddle::DataType::FLOAT16 || input_type == paddle::DataType::BFLOAT16);
PD_CHECK(weight_type == paddle::DataType::FLOAT32 || weight_type == paddle::DataType::FLOAT16 || weight_type == paddle::DataType::BFLOAT16);
PD_CHECK(conv_state.dtype() == input_type);
PD_CHECK(x.is_gpu());
PD_CHECK(conv_state.is_gpu());
PD_CHECK(weight.is_gpu());
const auto sizes = x.dims();
const int batch_size = sizes[0];
const int dim = sizes[1];
const int seqlen = sizes[2];
const int width = weight.dims()[weight.dims().size() - 1];
const int conv_state_len = conv_state.dims()[2];
PD_CHECK(conv_state_len >= width - 1);
CHECK_SHAPE(x, batch_size, dim, seqlen);
CHECK_SHAPE(conv_state, batch_size, dim, conv_state_len);
CHECK_SHAPE(weight, dim, width);
PD_CHECK(width >= 2 && width <= 4, "causal_conv1d only supports width between 2 and 4");
if (bias_.has_value()) {
auto bias = bias_.value();
PD_CHECK(bias.dtype() == weight_type);
PD_CHECK(bias.is_gpu());
PD_CHECK(bias.strides()[bias.strides().size() - 1] == 1);
CHECK_SHAPE(bias, dim);
}
paddle::Tensor out = paddle::empty_like(x);
ConvParamsBase params;
set_conv_params_fwd(params, batch_size, dim, seqlen, width, x, weight, out,
bias_.has_value() ? const_cast<void*>(bias_.value().data()) : nullptr,
silu_activation);
params.conv_state_ptr = const_cast<void*>(conv_state.data());
params.conv_state_len = conv_state_len;
// All stride are in elements, not bytes.
params.conv_state_batch_stride = conv_state.strides()[0];
params.conv_state_c_stride = conv_state.strides()[1];
params.conv_state_l_stride = conv_state.strides()[2];
if (cache_seqlens_.has_value()) {
auto cache_seqlens = cache_seqlens_.value();
PD_CHECK(cache_seqlens.dtype() == paddle::DataType::INT32 || cache_seqlens.dtype() == paddle::DataType::INT64);
PD_CHECK(cache_seqlens.is_gpu());
PD_CHECK(cache_seqlens.strides()[cache_seqlens.dims().size() - 1] == 1);
CHECK_SHAPE(cache_seqlens, batch_size);
params.cache_seqlens = cache_seqlens.data<int32_t>();
} else {
params.cache_seqlens = nullptr;
}
// Otherwise the kernel will be launched from cuda:0 device
// Cast to char to avoid compiler warning about narrowing
auto stream = x.stream();
DISPATCH_ITYPE_FLOAT_AND_HALF_AND_BF16(x.dtype(), "causal_conv1d_update", [&] {
DISPATCH_WTYPE_FLOAT_AND_HALF_AND_BF16(weight.dtype(), "causal_conv1d_update", [&] {
causal_conv1d_update_cuda<input_t, weight_t>(params, stream);
});
});
return out;
}
PYBIND11_MODULE(causal_conv1d_cuda_pd, m) {
m.def("causal_conv1d_fwd", &causal_conv1d_fwd, "Causal conv1d forward");
m.def("causal_conv1d_bwd", &causal_conv1d_bwd, "Causal conv1d backward");
m.def("causal_conv1d_update", &causal_conv1d_update, "Causal conv1d update");
}