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提交 9dd5a177 编写于 作者: T tensor-tang
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refine batch mode and peephole

上级 f10710b0
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Showing with 179 addition and 228 deletion
paddle/fluid/operators/fusion_lstm_op.cc
浏览文件 @ 9dd5a177
......@@ -252,154 +252,162 @@ class FuisonLSTMKernel : public framework::OpKernel<T> {
const int D3 = D * 3; \
const int D4 = wh_dims[1];
#define INIT_BASE_INPUT_DATAS \
const T* x_data = x->data<T>(); \
const T* wx_data = wx->data<T>(); \
const T* wh_data = wh->data<T>(); \
/* diagonal weight*/ \
const T* wc_data = bias->data<T>() + D4; \
/* for peephole only*/ \
Tensor checked_cell; \
T* checked_cell_data = nullptr; \
auto place = ctx.GetPlace(); \
if (use_peepholes) { \
/* w_ic * Ct-1, w_fc * Ct-1 ; w_oc * Ct => ih*/ \
checked_cell_data = checked_cell.mutable_data<T>({2, D}, place); \
}
/// Compute LSTM
#define GEMM_WH_ADDON(bs, prev, out) \
blas.GEMM(CblasNoTrans, CblasNoTrans, bs, D4, D, static_cast<T>(1), prev, D, \
wh_data, D4, static_cast<T>(1), out, D4)
// gates: W_ch, W_ih, W_fh, W_oh
#define GET_Ct(ct_1, gates, ct) \
/* C_t = C_t-1 * fgated + cand_gated * igated*/ \
act_cand(D, gates, gates); \
blas.VMUL(D, gates, gates + D, gates + D); \
blas.VMUL(D, ct_1, gates + D2, gates + D2); \
blas.VADD(D, gates + D, gates + D2, ct)
#define GET_Ht(ct, gates, ht) \
/* H_t = act_cell(C_t) * ogated */ \
act_cell(D, ct, gates + D2); \
blas.VMUL(D, gates + D2, gates + D3, ht)
#define COMPUTE_CtHt_WITHOUT_H0C0(gates, ct, ht) \
act_gate(D, gates + D, gates + D); \
act_cand(D, gates, gates); \
/* C_t = igated * cgated*/ \
blas.VMUL(D, gates, gates + D, ct); \
/* get outgated*/ \
if (use_peepholes) { \
/* put W_oc * C_t on igated */ \
blas.VMUL(D, wc_data + D2, ct, gates + D); \
blas.VADD(D, gates + D, gates + D3, gates + D3); \
} \
act_gate(D, gates + D3, gates + D3); \
GET_Ht(ct, gates, ht)
#define COMPUTE_CtHt(gates, ct_1, ct, ht) \
act_gate(D3, gates + D, gates + D); \
GET_Ct(ct_1, gates, ct); \
GET_Ht(ct, gates, ht)
#define COMPUTE_CtHt_PEEPHOLE(gates, ct_1, ct, ht) \
/* get fgated and igated*/ \
blas.VMUL(D, wc_data, ct_1, checked_cell_data); \
blas.VMUL(D, wc_data + D, ct_1, checked_cell_data + D); \
blas.VADD(D2, checked_cell_data, gates + D, gates + D); \
act_gate(D2, gates + D, gates + D); \
GET_Ct(ct_1, gates, ct); \
/* get ogated*/ \
blas.VMUL(D, wc_data + D2, ct, gates + D); \
blas.VADD(D, gates + D, gates + D3, gates + D3); \
act_gate(D, gates + D3, gates + D3); \
GET_Ht(ct, gates, ht)
void SeqCompute(const framework::ExecutionContext& ctx) const {
using DeviceContext = paddle::platform::CPUDeviceContext;
INIT_BASE_INPUT_OUTPUT
INIT_BASE_SIZES
INIT_VEC_FUNC
INIT_BASE_INPUT_DATAS
auto x_lod = x->lod();
const int total_T = x_dims[0];
const int N = x_lod[0].size() - 1;
const T* x_data = x->data<T>();
const T* h0_data = h0 ? h0->data<T>() : nullptr;
const T* c0_data = c0 ? c0->data<T>() : nullptr;
const T* wx_data = wx->data<T>();
const T* wh_data = wh->data<T>();
const T* wc_data = bias->data<T>() + D4; // diagonal weight
auto place = ctx.GetPlace();
T* xx_data = xx->mutable_data<T>(place);
T* hidden_out_data = hidden_out->mutable_data<T>(place);
T* cell_out_data = cell_out->mutable_data<T>(place);
T* h_out_data = hidden_out->mutable_data<T>(place);
T* c_out_data = cell_out->mutable_data<T>(place);
auto blas = math::GetBlas<DeviceContext, T>(ctx);
math::FCCompute<DeviceContext, T>(blas, total_T, D4, M, x_data, wx_data,
xx_data, bias->data<T>());
// for peephole only
Tensor checked_cell;
T* checked_cell_data = nullptr;
if (use_peepholes) {
// w_ic * Ct-1, w_fc * Ct-1 // , w_oc * Ct => ih
checked_cell_data = checked_cell.mutable_data<T>({2, D}, place);
}
int xx_offset = D4;
int gate_offset = D;
if (is_reverse) {
const int offset = (total_T - 1) * D;
xx_data = xx_data + offset * 4;
hidden_out_data = hidden_out_data + offset;
cell_out_data = cell_out_data + offset;
h_out_data = h_out_data + offset;
c_out_data = c_out_data + offset;
xx_offset = -D4;
gate_offset = -D;
}
auto move_step = [&]() {
xx_data = xx_data + xx_offset;
hidden_out_data = hidden_out_data + gate_offset;
cell_out_data = cell_out_data + gate_offset;
};
#define GEMM_WH_ADDON \
blas.GEMM(CblasNoTrans, CblasNoTrans, 1, D4, D, static_cast<T>(1), \
prev_h_data, D, wh_data, D4, static_cast<T>(1), xx_data, D4)
#define GET_Ct \
/* C_t = C_t-1 * fgated + cand_gated * igated*/ \
act_cand(D, xx_data, xx_data); \
blas.VMUL(D, xx_data, xx_data + D, xx_data + D); \
blas.VMUL(D, prev_c_data, xx_data + D2, xx_data + D2); \
blas.VADD(D, xx_data + D, xx_data + D2, cell_out_data)
#define GET_Ht_AND_MOVE \
/* H_t = act_cell(C_t) * ogated */ \
act_cell(D, cell_out_data, xx_data + D2); \
blas.VMUL(D, xx_data + D2, xx_data + D3, hidden_out_data); \
/* get prev and move*/ \
prev_h_data = hidden_out_data; \
prev_c_data = cell_out_data; \
move_step()
for (int i = 0; i < N; ++i) {
int bid = is_reverse ? N - 1 - i : i;
int seq_len = x_lod[0][bid + 1] - x_lod[0][bid];
const T* prev_c_data = nullptr;
const T* prev_h_data = nullptr;
int tstart = 0;
if (h0_data) {
prev_h_data = h0_data + bid * D;
prev_c_data = c0_data + bid * D;
} else {
// W_ch, W_ih, W_fh, W_oh
act_gate(D, xx_data + D, xx_data + D);
act_cand(D, xx_data, xx_data);
// C_t = igated * cgated
blas.VMUL(D, xx_data, xx_data + D, cell_out_data);
// get outgated
if (use_peepholes) {
// put W_oc * C_t on igated
blas.VMUL(D, wc_data + D2, cell_out_data, xx_data + D);
blas.VADD(D, xx_data + D, xx_data + D3, xx_data + D3);
}
act_gate(D, xx_data + D3, xx_data + D3);
GET_Ht_AND_MOVE;
tstart = 1;
#define MOVE_ONE_STEP \
prev_h_data = h_out_data; \
prev_c_data = c_out_data; \
xx_data = xx_data + xx_offset; \
h_out_data = h_out_data + gate_offset; \
c_out_data = c_out_data + gate_offset
#define PROCESS_H0C0 \
int bid = is_reverse ? N - 1 - i : i; \
int seq_len = x_lod[0][bid + 1] - x_lod[0][bid]; \
const T* prev_c_data = nullptr; \
const T* prev_h_data = nullptr; \
int tstart = 0; \
if (h0_data) { \
prev_h_data = h0_data + bid * D; \
prev_c_data = c0_data + bid * D; \
} else { \
COMPUTE_CtHt_WITHOUT_H0C0(xx_data, c_out_data, h_out_data); \
MOVE_ONE_STEP; \
tstart = 1; \
}
if (use_peepholes) {
for (int i = 0; i < N; ++i) {
PROCESS_H0C0;
for (int step = tstart; step < seq_len; ++step) {
GEMM_WH_ADDON;
// get fgated and igated
blas.VMUL(D, wc_data, prev_c_data, checked_cell_data);
blas.VMUL(D, wc_data + D, prev_c_data, checked_cell_data + D);
blas.VADD(D2, checked_cell_data, xx_data + D, xx_data + D);
act_gate(D2, xx_data + D, xx_data + D);
GET_Ct;
// get ogated
blas.VMUL(D, wc_data + D2, cell_out_data, xx_data + D);
blas.VADD(D, xx_data + D, xx_data + D3, xx_data + D3);
act_gate(D, xx_data + D3, xx_data + D3);
GET_Ht_AND_MOVE;
} // for seqlen
GEMM_WH_ADDON(1, prev_h_data, xx_data);
COMPUTE_CtHt_PEEPHOLE(xx_data, prev_c_data, c_out_data, h_out_data);
MOVE_ONE_STEP;
}
}
} else {
for (int i = 0; i < N; ++i) {
PROCESS_H0C0;
for (int step = tstart; step < seq_len; ++step) {
GEMM_WH_ADDON;
// W_ch, W_ih, W_fh, W_oh
act_gate(D3, xx_data + D, xx_data + D);
GET_Ct;
GET_Ht_AND_MOVE;
} // for seqlen
GEMM_WH_ADDON(1, prev_h_data, xx_data);
COMPUTE_CtHt(xx_data, prev_c_data, c_out_data, h_out_data);
MOVE_ONE_STEP;
}
} // for batch
#undef GET_Ht_AND_MOVE
#undef GEMM_WH_ADDON
#undef GET_Ct
}
}
#undef PROCESS_H0C0
#undef MOVE_ONE_STEP
}
void BatchCompute(const framework::ExecutionContext& ctx) const {
using DeviceContext = platform::CPUDeviceContext;
INIT_BASE_INPUT_OUTPUT
if (x->lod()[0].size() == 2) { // batch size == 1
if (x->lod()[0].size() == 2) {
SeqCompute(ctx);
return;
}
INIT_BASE_SIZES
INIT_VEC_FUNC
INIT_BASE_INPUT_DATAS
auto* reordered_h0 = ctx.Output<Tensor>("ReorderedH0");
auto* reordered_c0 = ctx.Output<Tensor>("ReorderedC0");
auto* batched_input = ctx.Output<LoDTensor>("BatchedInput");
auto* batched_c_out = ctx.Output<LoDTensor>("BatchedCell");
auto* batched_h_out = ctx.Output<LoDTensor>("BatchedHidden");
const T* x_data = x->data<T>();
const T* wx_data = wx->data<T>();
const T* wh_data = wh->data<T>();
const T* bias_data = bias->data<T>();
const T* wc_data = bias_data + D4; // w_ic, w_fc, w_oc
auto place = ctx.GetPlace();
T* xx_data = xx->mutable_data<T>(place);
T* batched_input_data = batched_input->mutable_data<T>(place);
T* batched_c_out_data = batched_c_out->mutable_data<T>(place);
......@@ -407,12 +415,6 @@ class FuisonLSTMKernel : public framework::OpKernel<T> {
hidden_out->mutable_data<T>(place);
cell_out->mutable_data<T>(place);
// use local variable
framework::DDim check_dims({3, D});
Tensor checked_cell; // w_ic * Ct-1, w_fc * Ct-1, w_oc * Ct
auto checked_cell_data =
checked_cell.mutable_data<T>(check_dims, ctx.GetPlace());
math::LoDTensor2BatchFunctor<DeviceContext, T> to_batch;
auto& dev_ctx = ctx.template device_context<DeviceContext>();
auto blas = math::GetBlas<DeviceContext, T>(dev_ctx);
......@@ -434,27 +436,17 @@ class FuisonLSTMKernel : public framework::OpKernel<T> {
reordered_h0->Resize({max_bs, D});
reordered_c0->Resize({max_bs, D});
T* prev_batch_h_data = nullptr;
T* prev_batch_c_data = nullptr;
T* cur_batch_in_data = batched_input_data;
T* cur_batch_h_out_data = batched_h_out_data;
T* cur_batch_c_out_data = batched_c_out_data;
auto move_step = [&](int bs) {
cur_batch_in_data += bs * D4;
cur_batch_c_out_data += bs * D;
cur_batch_h_out_data += bs * D;
};
int tstart = 0;
T* prev_h_data = nullptr;
T* prev_c_data = nullptr;
if (h0) {
// reorder h0, c0
T* reordered_h0_data = reordered_h0->mutable_data<T>(place);
T* reordered_c0_data = reordered_c0->mutable_data<T>(place);
const T* h0_data = h0->data<T>();
const T* c0_data = c0->data<T>();
prev_batch_h_data = reordered_h0_data;
prev_batch_c_data = reordered_c0_data;
prev_h_data = reordered_h0_data;
prev_c_data = reordered_c0_data;
size_t sz = sizeof(T) * D;
for (int i = 0; i < max_bs; ++i) {
std::memcpy(reordered_h0_data, h0_data + seq_order[i] * D, sz);
......@@ -463,123 +455,74 @@ class FuisonLSTMKernel : public framework::OpKernel<T> {
reordered_c0_data += D;
}
} else {
// Compute with no H0/C0
T* cur_in_data = cur_batch_in_data;
T* cur_c_out_data = cur_batch_c_out_data;
T* cur_h_out_data = cur_batch_h_out_data;
// If step == 0 and there is no initialized hidden state, that is to say
// the H0 is zeros. Then W_h * H_t-1 can be skiped
for (int i = 0; i < max_bs; ++i) { // iterate each data in 1st batch
// ~C_t
act_cand(D, cur_in_data, cur_in_data);
if (use_peepholes) {
// I_t, F_t
act_gate(D2, cur_in_data + D, cur_in_data + D);
} else {
// I_t, F_t, O_t
act_gate(D3, cur_in_data + D, cur_in_data + D);
}
// C_t = I_t * ~C_t
blas.VMUL(D, cur_in_data, cur_in_data + D, cur_c_out_data);
if (use_peepholes) {
// + W_oc * C_t for peephole connection
blas.VMUL(D, wc_data + D2, cur_c_out_data, checked_cell_data + D2);
blas.VADD(D, cur_in_data + D3, checked_cell_data + D2,
cur_in_data + D3);
// O_t
act_gate(D, cur_in_data + D3, cur_in_data + D3);
}
// hidden out= act_state(cellout) * outgate
act_cell(D, cur_c_out_data, cur_in_data + D2);
// H_t = O_t * act_state(C_t)
blas.VMUL(D, cur_in_data + D2, cur_in_data + D3, cur_h_out_data);
// move to next data in the same batch
// compute without h0, c0
T* cur_in_data = batched_input_data;
T* cur_h_out_data = batched_h_out_data;
T* cur_c_out_data = batched_c_out_data;
for (int i = 0; i < max_bs; ++i) {
COMPUTE_CtHt_WITHOUT_H0C0(cur_in_data, cur_c_out_data, cur_h_out_data);
cur_in_data += D4;
cur_c_out_data += D;
cur_h_out_data += D;
}
// move to data for next timestep
prev_batch_h_data = cur_batch_h_out_data;
prev_batch_c_data = cur_batch_c_out_data;
move_step(max_bs);
tstart = 1;
prev_h_data = batched_h_out_data;
prev_c_data = batched_c_out_data;
}
const auto& batch_starts = batched_lod[0];
const int max_seq_len = batch_starts.size() - 1;
for (int step = tstart; step < max_seq_len; ++step) {
const int cur_bs = batch_starts[step + 1] - batch_starts[step];
// + W_h * H_t-1
blas.GEMM(CblasNoTrans, CblasNoTrans, cur_bs, D4, D, static_cast<T>(1),
prev_batch_h_data, D, wh_data, D4, static_cast<T>(1),
cur_batch_in_data, D4);
T* cur_in_data = cur_batch_in_data;
T* cur_c_out_data = cur_batch_c_out_data;
T* cur_h_out_data = cur_batch_h_out_data;
T* prev_c_data = prev_batch_c_data; // NULL if no C0 in step0
T* prev_h_data = prev_batch_h_data; // NULL if no H0 in step0
auto next_data_in_batch = [&]() {
cur_in_data += D4;
cur_c_out_data += D;
cur_h_out_data += D;
prev_c_data = prev_c_data ? prev_c_data + D : nullptr;
prev_h_data = prev_h_data ? prev_h_data + D : nullptr;
};
for (int i = 0; i < cur_bs; ++i) { // iterate each data in same batch
// ~C_t
act_cand(D, cur_in_data, cur_in_data);
const int offset = tstart * max_bs * D;
batched_input_data = batched_input_data + offset * 4;
batched_h_out_data = batched_h_out_data + offset;
batched_c_out_data = batched_c_out_data + offset;
#define DEFINE_CUR \
T* cur_in_data = batched_input_data; \
T* cur_prev_c_data = prev_c_data; \
T* cur_c_out_data = batched_c_out_data; \
T* cur_h_out_data = batched_h_out_data
#define MOVE_ONE_BATCH \
cur_in_data += D4; \
cur_prev_c_data += D; \
cur_c_out_data += D; \
cur_h_out_data += D
#define MOVE_ONE_STEP \
prev_c_data = batched_c_out_data; \
prev_h_data = batched_h_out_data; \
batched_c_out_data = cur_c_out_data; \
batched_h_out_data = cur_h_out_data; \
batched_input_data = cur_in_data
if (use_peepholes) {
// + W_ic|W_fc * C_t-1 for peephole connection
blas.VMUL(D, wc_data, prev_c_data, checked_cell_data);
blas.VMUL(D, wc_data + D, prev_c_data, checked_cell_data + D);
blas.VADD(D2, cur_in_data + D, checked_cell_data, cur_in_data + D);
// I_t, F_t
act_gate(D2, cur_in_data + D, cur_in_data + D);
} else {
// I_t, F_t, O_t
act_gate(D3, cur_in_data + D, cur_in_data + D);
for (int step = tstart; step < max_seq_len; ++step) {
const int cur_bs = batch_starts[step + 1] - batch_starts[step];
GEMM_WH_ADDON(cur_bs, prev_h_data, batched_input_data);
DEFINE_CUR;
for (int i = 0; i < cur_bs; ++i) {
COMPUTE_CtHt_PEEPHOLE(cur_in_data, cur_prev_c_data, cur_c_out_data,
cur_h_out_data);
MOVE_ONE_BATCH;
}
// F_t * C_t-1
blas.VMUL(D, cur_in_data + D2, prev_c_data, cur_in_data + D2);
// I_t * ~C_t
blas.VMUL(D, cur_in_data, cur_in_data + D, cur_in_data + D);
// C_t = F_t * C_t-1 + I_t * ~C_t
blas.VADD(D, cur_in_data + D, cur_in_data + D2, cur_c_out_data);
if (use_peepholes) {
// + W_oc * C_t for peephole connection
blas.VMUL(D, wc_data + D2, cur_c_out_data, checked_cell_data + D2);
blas.VADD(D, cur_in_data + D3, checked_cell_data + D2,
cur_in_data + D3);
// O_t
act_gate(D, cur_in_data + D3, cur_in_data + D3);
MOVE_ONE_STEP;
}
// hidden out= act_state(cellout) * outgate
act_cell(D, cur_c_out_data, cur_in_data + D2);
// H_t = O_t * act_state(C_t)
blas.VMUL(D, cur_in_data + D2, cur_in_data + D3, cur_h_out_data);
// move to next data in same batch
next_data_in_batch();
} else {
for (int step = tstart; step < max_seq_len; ++step) {
const int cur_bs = batch_starts[step + 1] - batch_starts[step];
GEMM_WH_ADDON(cur_bs, prev_h_data, batched_input_data);
DEFINE_CUR;
for (int i = 0; i < cur_bs; ++i) {
COMPUTE_CtHt(cur_in_data, cur_prev_c_data, cur_c_out_data,
cur_h_out_data);
MOVE_ONE_BATCH;
}
// move to data for next timestep
prev_batch_h_data = cur_batch_h_out_data;
prev_batch_c_data = cur_batch_c_out_data;
move_step(cur_bs);
MOVE_ONE_STEP;
}
}
#undef MOVE_ONE_STEP
#undef MOVE_ONE_BATCH
#undef DEFINE_CUR
math::Batch2LoDTensorFunctor<DeviceContext, T> to_seq;
batched_h_out->set_lod(batched_lod);
......@@ -595,6 +538,14 @@ class FuisonLSTMKernel : public framework::OpKernel<T> {
BatchCompute(ctx);
}
}
#undef COMPUTE_CtHt_PEEPHOLE
#undef COMPUTE_CtHt
#undef COMPUTE_CtHt_WITHOUT_H0C0
#undef GET_Ht
#undef GET_Ct
#undef GEMM_WH_ADDON
#undef INIT_BASE_INPUT_DATAS
#undef INIT_BASE_SIZES
#undef INIT_BASE_INPUT_OUTPUT
#undef INIT_VEC_FUNC
......
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