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whisper : add support for quantized models

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gq
Georgi Gerganov 2 years ago
parent b46f35b1f9
commit f2d174f530
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GPG Key ID: 449E073F9DC10735
1 changed files with 105 additions and 67 deletions
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172
examples/whisper/whisper.cpp
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@ -252,6 +252,8 @@ static const std::map<e_model, size_t> MEM_REQ_SCRATCH3 = {
{ MODEL_LARGE, 9ull*MB },
};
// TODO determine this on runtime
#if 0 // F16
static const std::map<e_model, size_t> MEM_REQ_MODEL = {
{ MODEL_TINY, 74ull*MB },
{ MODEL_BASE, 142ull*MB },
@ -260,6 +262,17 @@ static const std::map<e_model, size_t> MEM_REQ_MODEL = {
{ MODEL_LARGE, 2952ull*MB },
};
#else // Q4
static const std::map<e_model, size_t> MEM_REQ_MODEL = {
{ MODEL_TINY, 1ull*MB }, // TODO
{ MODEL_BASE, 1ull*MB }, // TODO
{ MODEL_SMALL, 154ull*MB },
{ MODEL_MEDIUM, 470ull*MB },
{ MODEL_LARGE, 940ull*MB },
};
#endif
static const std::map<e_model, size_t> MEM_REQ_KV_SELF = {
{ MODEL_TINY, 3ull*MB },
{ MODEL_BASE, 6ull*MB },
@ -681,7 +694,7 @@ static bool kv_cache_reinit(struct whisper_kv_cache & cache) {
const ggml_type wtype = cache.k->type;
WHISPER_ASSERT(wtype == cache.v->type);
WHISPER_ASSERT(cache.buf.size() >= 2*n_elements*ggml_type_size(wtype));
WHISPER_ASSERT(cache.buf.size() >= 2*n_elements*ggml_type_sizef(wtype));
struct ggml_init_params params;
params.mem_size = cache.buf.size();
@ -776,12 +789,25 @@ static bool whisper_model_load(struct whisper_model_loader * loader, whisper_con
model.type = e_model::MODEL_LARGE;
}
// for the big tensors, we have the option to store the data in 16-bit floats
// for the big tensors, we have the option to store the data in 16-bit floats or quantized
// in order to save memory and also to speed up the computation
wctx.wtype = model.hparams.f16 ? GGML_TYPE_F16 : GGML_TYPE_F32;
wctx.wtype = GGML_TYPE_COUNT;
switch (model.hparams.f16) {
case 0: wctx.wtype = GGML_TYPE_F32; break;
case 1: wctx.wtype = GGML_TYPE_F16; break;
case 2: wctx.wtype = GGML_TYPE_Q4_0; break;
case 3: wctx.wtype = GGML_TYPE_Q4_1; break;
default:
{
fprintf(stderr, "%s: invalid model (bad f16 value %d)\n", __func__, model.hparams.f16);
return false;
}
}
const size_t scale = model.hparams.f16 ? 1 : 2;
static const char * ftype_str[] = { "f32", "f16", "q4_0", "q4_1", };
fprintf(stderr, "%s: n_vocab = %d\n", __func__, hparams.n_vocab);
fprintf(stderr, "%s: n_audio_ctx = %d\n", __func__, hparams.n_audio_ctx);
fprintf(stderr, "%s: n_audio_state = %d\n", __func__, hparams.n_audio_state);
@ -792,7 +818,7 @@ static bool whisper_model_load(struct whisper_model_loader * loader, whisper_con
fprintf(stderr, "%s: n_text_head = %d\n", __func__, hparams.n_text_head);
fprintf(stderr, "%s: n_text_layer = %d\n", __func__, hparams.n_text_layer);
fprintf(stderr, "%s: n_mels = %d\n", __func__, hparams.n_mels);
fprintf(stderr, "%s: f16 = %d\n", __func__, hparams.f16);
fprintf(stderr, "%s: ftype = %s\n", __func__, ftype_str[model.hparams.f16]);
fprintf(stderr, "%s: type = %d\n", __func__, model.type);
// print memory requirements
@ -821,7 +847,7 @@ static bool whisper_model_load(struct whisper_model_loader * loader, whisper_con
wctx.model.buf = new std::vector<uint8_t>();
wctx.model.buf->resize(scale*MEM_REQ_MODEL.at(model.type));
if (!kv_cache_init(model.hparams, scale*MEM_REQ_KV_SELF.at(model.type), wctx.decoders[0].kv_self, wctx.wtype, model.hparams.n_text_ctx)) {
if (!kv_cache_init(model.hparams, scale*MEM_REQ_KV_SELF.at(model.type), wctx.decoders[0].kv_self, GGML_TYPE_F16, model.hparams.n_text_ctx)) {
fprintf(stderr, "%s: kv_cache_init() failed for self-attention cache\n", __func__);
return false;
}
@ -831,7 +857,7 @@ static bool whisper_model_load(struct whisper_model_loader * loader, whisper_con
fprintf(stderr, "%s: kv self size = %7.2f MB\n", __func__, memory_size/1024.0/1024.0);
}
if (!kv_cache_init(model.hparams, scale*MEM_REQ_KV_CROSS.at(model.type), wctx.kv_cross, wctx.wtype, model.hparams.n_audio_ctx)) {
if (!kv_cache_init(model.hparams, scale*MEM_REQ_KV_CROSS.at(model.type), wctx.kv_cross, GGML_TYPE_F16, model.hparams.n_audio_ctx)) {
fprintf(stderr, "%s: kv_cache_init() failed for cross-attention cache\n", __func__);
return false;
}
@ -963,92 +989,92 @@ static bool whisper_model_load(struct whisper_model_loader * loader, whisper_con
// encoder
{
ctx_size += n_audio_ctx*n_audio_state*ggml_type_size(GGML_TYPE_F32); // e_pe;
ctx_size += n_audio_ctx*n_audio_state*ggml_type_sizef(GGML_TYPE_F32); // e_pe;
ctx_size += 3*n_mels*n_audio_state*ggml_type_size(wtype); // e_conv_1_w
ctx_size += n_audio_state*ggml_type_size(GGML_TYPE_F32); // e_conv_1_b
ctx_size += 3*n_mels*n_audio_state*ggml_type_sizef(GGML_TYPE_F16); // e_conv_1_w
ctx_size += n_audio_state*ggml_type_sizef(GGML_TYPE_F32); // e_conv_1_b
ctx_size += 3*n_audio_state*n_audio_state*ggml_type_size(wtype); // e_conv_2_w
ctx_size += n_audio_state*ggml_type_size(GGML_TYPE_F32); // e_conv_2_b
ctx_size += 3*n_audio_state*n_audio_state*ggml_type_sizef(GGML_TYPE_F16); // e_conv_2_w
ctx_size += n_audio_state*ggml_type_sizef(GGML_TYPE_F32); // e_conv_2_b
ctx_size += n_audio_state*ggml_type_size(GGML_TYPE_F32); // e_ln_w;
ctx_size += n_audio_state*ggml_type_size(GGML_TYPE_F32); // e_ln_b;
ctx_size += n_audio_state*ggml_type_sizef(GGML_TYPE_F32); // e_ln_w;
ctx_size += n_audio_state*ggml_type_sizef(GGML_TYPE_F32); // e_ln_b;
}
// decoder
{
ctx_size += n_text_ctx*n_text_state*ggml_type_size(GGML_TYPE_F32); // d_pe;
ctx_size += n_text_ctx*n_text_state*ggml_type_sizef(GGML_TYPE_F32); // d_pe;
ctx_size += n_vocab*n_text_state*ggml_type_size(wtype); // d_te;
ctx_size += n_vocab*n_text_state*ggml_type_sizef(wtype); // d_te;
ctx_size += n_text_state*ggml_type_size(GGML_TYPE_F32); // d_ln_w;
ctx_size += n_text_state*ggml_type_size(GGML_TYPE_F32); // d_ln_b;
ctx_size += n_text_state*ggml_type_sizef(GGML_TYPE_F32); // d_ln_w;
ctx_size += n_text_state*ggml_type_sizef(GGML_TYPE_F32); // d_ln_b;
}
// encoder layers
{
ctx_size += n_audio_layer*(n_audio_state*ggml_type_size(GGML_TYPE_F32)); // mlp_ln_w
ctx_size += n_audio_layer*(n_audio_state*ggml_type_size(GGML_TYPE_F32)); // mlp_ln_b
ctx_size += n_audio_layer*(n_audio_state*ggml_type_sizef(GGML_TYPE_F32)); // mlp_ln_w
ctx_size += n_audio_layer*(n_audio_state*ggml_type_sizef(GGML_TYPE_F32)); // mlp_ln_b
ctx_size += n_audio_layer*(4*n_audio_state*n_audio_state*ggml_type_size(wtype)); // mlp_0_w
ctx_size += n_audio_layer*( 4*n_audio_state*ggml_type_size(GGML_TYPE_F32)); // mlp_0_b
ctx_size += n_audio_layer*(4*n_audio_state*n_audio_state*ggml_type_sizef(wtype)); // mlp_0_w
ctx_size += n_audio_layer*( 4*n_audio_state*ggml_type_sizef(GGML_TYPE_F32)); // mlp_0_b
ctx_size += n_audio_layer*(4*n_audio_state*n_audio_state*ggml_type_size(wtype)); // mlp_1_w
ctx_size += n_audio_layer*( n_audio_state*ggml_type_size(GGML_TYPE_F32)); // mlp_1_b
ctx_size += n_audio_layer*(4*n_audio_state*n_audio_state*ggml_type_sizef(wtype)); // mlp_1_w
ctx_size += n_audio_layer*( n_audio_state*ggml_type_sizef(GGML_TYPE_F32)); // mlp_1_b
ctx_size += n_audio_layer*(n_audio_state*ggml_type_size(GGML_TYPE_F32)); // attn_ln_0_w
ctx_size += n_audio_layer*(n_audio_state*ggml_type_size(GGML_TYPE_F32)); // attn_ln_0_b
ctx_size += n_audio_layer*(n_audio_state*ggml_type_sizef(GGML_TYPE_F32)); // attn_ln_0_w
ctx_size += n_audio_layer*(n_audio_state*ggml_type_sizef(GGML_TYPE_F32)); // attn_ln_0_b
ctx_size += n_audio_layer*(n_audio_state*n_audio_state*ggml_type_size(wtype)); // attn_q_w
ctx_size += n_audio_layer*( n_audio_state*ggml_type_size(GGML_TYPE_F32)); // attn_q_b
ctx_size += n_audio_layer*(n_audio_state*n_audio_state*ggml_type_sizef(wtype)); // attn_q_w
ctx_size += n_audio_layer*( n_audio_state*ggml_type_sizef(GGML_TYPE_F32)); // attn_q_b
ctx_size += n_audio_layer*(n_audio_state*n_audio_state*ggml_type_size(wtype)); // attn_k_w
ctx_size += n_audio_layer*(n_audio_state*n_audio_state*ggml_type_sizef(wtype)); // attn_k_w
ctx_size += n_audio_layer*(n_audio_state*n_audio_state*ggml_type_size(wtype)); // attn_v_w
ctx_size += n_audio_layer*( n_audio_state*ggml_type_size(GGML_TYPE_F32)); // attn_v_b
ctx_size += n_audio_layer*(n_audio_state*n_audio_state*ggml_type_sizef(wtype)); // attn_v_w
ctx_size += n_audio_layer*( n_audio_state*ggml_type_sizef(GGML_TYPE_F32)); // attn_v_b
ctx_size += n_audio_layer*(n_audio_state*n_audio_state*ggml_type_size(wtype)); // attn_ln_1_w
ctx_size += n_audio_layer*( n_audio_state*ggml_type_size(GGML_TYPE_F32)); // attn_ln_1_b
ctx_size += n_audio_layer*(n_audio_state*n_audio_state*ggml_type_sizef(wtype)); // attn_ln_1_w
ctx_size += n_audio_layer*( n_audio_state*ggml_type_sizef(GGML_TYPE_F32)); // attn_ln_1_b
}
// decoder layers
{
ctx_size += n_text_layer*(n_text_state*ggml_type_size(GGML_TYPE_F32)); // mlp_ln_w
ctx_size += n_text_layer*(n_text_state*ggml_type_size(GGML_TYPE_F32)); // mlp_ln_b
ctx_size += n_text_layer*(n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // mlp_ln_w
ctx_size += n_text_layer*(n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // mlp_ln_b
ctx_size += n_text_layer*(4*n_text_state*n_text_state*ggml_type_size(wtype)); // mlp_0_w
ctx_size += n_text_layer*( 4*n_text_state*ggml_type_size(GGML_TYPE_F32)); // mlp_0_b
ctx_size += n_text_layer*(4*n_text_state*n_text_state*ggml_type_sizef(wtype)); // mlp_0_w
ctx_size += n_text_layer*( 4*n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // mlp_0_b
ctx_size += n_text_layer*(4*n_text_state*n_text_state*ggml_type_size(wtype)); // mlp_1_w
ctx_size += n_text_layer*( n_text_state*ggml_type_size(GGML_TYPE_F32)); // mlp_1_b
ctx_size += n_text_layer*(4*n_text_state*n_text_state*ggml_type_sizef(wtype)); // mlp_1_w
ctx_size += n_text_layer*( n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // mlp_1_b
ctx_size += n_text_layer*(n_text_state*ggml_type_size(GGML_TYPE_F32)); // attn_ln_0_w
ctx_size += n_text_layer*(n_text_state*ggml_type_size(GGML_TYPE_F32)); // attn_ln_0_b
ctx_size += n_text_layer*(n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // attn_ln_0_w
ctx_size += n_text_layer*(n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // attn_ln_0_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_size(wtype)); // attn_q_w
ctx_size += n_text_layer*( n_text_state*ggml_type_size(GGML_TYPE_F32)); // attn_q_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_sizef(wtype)); // attn_q_w
ctx_size += n_text_layer*( n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // attn_q_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_size(wtype)); // attn_k_w
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_sizef(wtype)); // attn_k_w
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_size(wtype)); // attn_v_w
ctx_size += n_text_layer*( n_text_state*ggml_type_size(GGML_TYPE_F32)); // attn_v_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_sizef(wtype)); // attn_v_w
ctx_size += n_text_layer*( n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // attn_v_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_size(wtype)); // attn_ln_1_w
ctx_size += n_text_layer*( n_text_state*ggml_type_size(GGML_TYPE_F32)); // attn_ln_1_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_sizef(wtype)); // attn_ln_1_w
ctx_size += n_text_layer*( n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // attn_ln_1_b
//
ctx_size += n_text_layer*(n_text_state*ggml_type_size(GGML_TYPE_F32)); // cross_attn_ln_0_w
ctx_size += n_text_layer*(n_text_state*ggml_type_size(GGML_TYPE_F32)); // cross_attn_ln_0_b
ctx_size += n_text_layer*(n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // cross_attn_ln_0_w
ctx_size += n_text_layer*(n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // cross_attn_ln_0_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_size(wtype)); // cross_attn_q_w
ctx_size += n_text_layer*( n_text_state*ggml_type_size(GGML_TYPE_F32)); // cross_attn_q_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_sizef(wtype)); // cross_attn_q_w
ctx_size += n_text_layer*( n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // cross_attn_q_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_size(wtype)); // cross_attn_k_w
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_sizef(wtype)); // cross_attn_k_w
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_size(wtype)); // cross_attn_v_w
ctx_size += n_text_layer*( n_text_state*ggml_type_size(GGML_TYPE_F32)); // cross_attn_v_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_sizef(wtype)); // cross_attn_v_w
ctx_size += n_text_layer*( n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // cross_attn_v_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_size(wtype)); // cross_attn_ln_1_w
ctx_size += n_text_layer*( n_text_state*ggml_type_size(GGML_TYPE_F32)); // cross_attn_ln_1_b
ctx_size += n_text_layer*(n_text_state*n_text_state*ggml_type_sizef(wtype)); // cross_attn_ln_1_w
ctx_size += n_text_layer*( n_text_state*ggml_type_sizef(GGML_TYPE_F32)); // cross_attn_ln_1_b
}
ctx_size += (15 + 15*n_audio_layer + 24*n_text_layer)*256; // object overhead
@ -1094,10 +1120,10 @@ static bool whisper_model_load(struct whisper_model_loader * loader, whisper_con
{
model.e_pe = ggml_new_tensor_2d(ctx, GGML_TYPE_F32, n_audio_state, n_audio_ctx);
model.e_conv_1_w = ggml_new_tensor_3d(ctx, wtype, 3, n_mels, n_audio_state);
model.e_conv_1_w = ggml_new_tensor_3d(ctx, GGML_TYPE_F16, 3, n_mels, n_audio_state);
model.e_conv_1_b = ggml_new_tensor_2d(ctx, GGML_TYPE_F32, 1, n_audio_state);
model.e_conv_2_w = ggml_new_tensor_3d(ctx, wtype, 3, n_audio_state, n_audio_state);
model.e_conv_2_w = ggml_new_tensor_3d(ctx, GGML_TYPE_F16, 3, n_audio_state, n_audio_state);
model.e_conv_2_b = ggml_new_tensor_2d(ctx, GGML_TYPE_F32, 1, n_audio_state);
model.e_ln_w = ggml_new_tensor_1d(ctx, GGML_TYPE_F32, n_audio_state);
@ -1313,9 +1339,21 @@ static bool whisper_model_load(struct whisper_model_loader * loader, whisper_con
return false;
}
const size_t bpe = (ftype == 0) ? sizeof(float) : sizeof(ggml_fp16_t);
size_t bpe = 0;
switch (ftype) {
case 0: bpe = ggml_type_size(GGML_TYPE_F32); break;
case 1: bpe = ggml_type_size(GGML_TYPE_F16); break;
case 2: bpe = ggml_type_size(GGML_TYPE_Q4_0); assert(ne[0] % 64 == 0); break;
case 3: bpe = ggml_type_size(GGML_TYPE_Q4_1); assert(ne[0] % 64 == 0); break;
default:
{
fprintf(stderr, "%s: unknown ftype %d in model file\n", __func__, ftype);
return false;
}
};
if (nelements*bpe != ggml_nbytes(tensor)) {
if ((nelements*bpe)/ggml_blck_size(tensor->type) != ggml_nbytes(tensor)) {
fprintf(stderr, "%s: tensor '%s' has wrong size in model file: got %zu, expected %zu\n",
__func__, name.data(), ggml_nbytes(tensor), nelements*bpe);
return false;
@ -1513,14 +1551,14 @@ static bool whisper_encode(
ggml_permute(ctx0,
ggml_cpy(ctx0,
Qcur,
ggml_new_tensor_3d(ctx0, wctx.wtype, n_state/n_head, n_head, n_ctx)),
ggml_new_tensor_3d(ctx0, GGML_TYPE_F16, n_state/n_head, n_head, n_ctx)),
0, 2, 1, 3);
struct ggml_tensor * K =
ggml_permute(ctx0,
ggml_cpy(ctx0,
Kcur,
ggml_new_tensor_3d(ctx0, wctx.wtype, n_state/n_head, n_head, n_ctx)),
ggml_new_tensor_3d(ctx0, GGML_TYPE_F16, n_state/n_head, n_head, n_ctx)),
0, 2, 1, 3);
struct ggml_tensor * V =
@ -1530,7 +1568,7 @@ static bool whisper_encode(
Vcur,
n_state/n_head, n_head, n_ctx),
1, 2, 0, 3),
ggml_new_tensor_3d(ctx0, wctx.wtype, n_ctx, n_state/n_head, n_head)
ggml_new_tensor_3d(ctx0, GGML_TYPE_F16, n_ctx, n_state/n_head, n_head)
);
struct ggml_tensor * KQV = ggml_flash_attn(ctx0, Q, K, V, false);
@ -1546,7 +1584,7 @@ static bool whisper_encode(
ggml_permute(ctx0,
ggml_cpy(ctx0,
Kcur,
ggml_new_tensor_3d(ctx0, wctx.wtype, n_state/n_head, n_head, n_ctx)),
ggml_new_tensor_3d(ctx0, GGML_TYPE_F16, n_state/n_head, n_head, n_ctx)),
0, 2, 1, 3);
// K * Q
@ -1564,7 +1602,7 @@ static bool whisper_encode(
// ggml_permute(ctx0,
// ggml_cpy(ctx0,
// Vcur,
// ggml_new_tensor_3d(ctx0, wctx.wtype, n_state/n_head, n_head, n_ctx)),
// ggml_new_tensor_3d(ctx0, GGML_TYPE_F16, n_state/n_head, n_head, n_ctx)),
// 1, 2, 0, 3);
//struct ggml_tensor * KQV = ggml_mul_mat(ctx0, V_trans, KQ_soft_max);
@ -1576,7 +1614,7 @@ static bool whisper_encode(
Vcur,
n_state/n_head, n_head, n_ctx),
0, 2, 1, 3),
ggml_new_tensor_3d(ctx0, wctx.wtype, n_state/n_head, n_ctx, n_head)
ggml_new_tensor_3d(ctx0, GGML_TYPE_F16, n_state/n_head, n_ctx, n_head)
);
struct ggml_tensor * KQV = ggml_mul_mat(ctx0, ggml_transpose(ctx0, V), KQ_soft_max);
@ -1634,7 +1672,7 @@ static bool whisper_encode(
wctx.use_buf(ctx0, 0);
cur = ggml_flash_ff(ctx0,
ggml_cpy(ctx0, cur, ggml_new_tensor_2d(ctx0, wctx.wtype, n_state, n_ctx)),
ggml_cpy(ctx0, cur, ggml_new_tensor_2d(ctx0, GGML_TYPE_F16, n_state, n_ctx)),
layer.mlp_0_w, layer.mlp_0_b, layer.mlp_1_w, layer.mlp_1_b);
#else
wctx.use_buf(ctx0, 0);

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