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llama : rename llama_reorder_outputs to llama_output_reorder

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Also move it closer to llama_output_reserve.

* llama : fix pooled embeddings when using batches with equal_seqs
This commit is contained in:
Francis Couture-Harpin 2024-08-06 11:30:50 -04:00
parent 5679a3bdbb
commit cfd5a113e1
1 changed files with 43 additions and 44 deletions
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87
src/llama.cpp
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@ -14756,7 +14756,7 @@ static void llama_set_inputs(llama_context & lctx, const llama_ubatch & batch) {
}
}
for (int i = 0; i < n_seqs; ++i) {
for (int i = 0; i < n_tokens; ++i) {
if (last_row[i] >= 0) {
data[i] = last_row[i];
}
@ -14942,6 +14942,43 @@ static size_t llama_output_reserve(llama_context & lctx, size_t n_outputs) {
return n_outputs_max;
}
// make the outputs have the same order they had in the user-provided batch
static void llama_output_reorder(struct llama_context * ctx) {
std::vector<size_t> & out_ids = ctx->sbatch.out_ids;
if (!out_ids.empty()) {
uint32_t n_vocab = ctx->model.hparams.n_vocab;
uint32_t n_embd = ctx->model.hparams.n_embd;
int32_t n_outputs = ctx->n_outputs;
GGML_ASSERT((size_t) n_outputs == out_ids.size());
// TODO: is there something more efficient which also minimizes swaps?
// selection sort, to minimize swaps (from https://en.wikipedia.org/wiki/Selection_sort)
for (int32_t i = 0; i < n_outputs - 1; ++i) {
int32_t j_min = i;
for (int32_t j = i + 1; j < n_outputs; ++j) {
if (out_ids[j] < out_ids[j_min]) {
j_min = j;
}
}
if (j_min == i) { continue; }
std::swap(out_ids[i], out_ids[j_min]);
if (ctx->logits_size > 0) {
for (uint32_t k = 0; k < n_vocab; k++) {
std::swap(ctx->logits[i*n_vocab + k], ctx->logits[j_min*n_vocab + k]);
}
}
if (ctx->embd_size > 0) {
for (uint32_t k = 0; k < n_embd; k++) {
std::swap(ctx->embd[i*n_embd + k], ctx->embd[j_min*n_embd + k]);
}
}
}
std::fill(ctx->output_ids.begin(), ctx->output_ids.end(), -1);
for (int32_t i = 0; i < n_outputs; ++i) {
ctx->output_ids[out_ids[i]] = i;
}
out_ids.clear();
}
}
static void llama_graph_compute(
llama_context & lctx,
@ -15180,8 +15217,8 @@ static int llama_decode_internal(
auto & embd_seq_out = lctx.embd_seq;
embd_seq_out.clear();
for (uint32_t i = 0; i < n_tokens; i++) {
const llama_seq_id seq_id = ubatch.seq_id[i][0];
for (uint32_t s = 0; s < ubatch.n_seqs; ++s) {
const llama_seq_id seq_id = ubatch.seq_id[s][0];
if (embd_seq_out.find(seq_id) != embd_seq_out.end()) {
continue;
}
@ -15631,44 +15668,6 @@ static void llama_kv_cache_update_internal(struct llama_context & lctx) {
}
}
// make the outputs have the same order they had in the user-provided batch
static void llama_reorder_outputs(struct llama_context * ctx) {
std::vector<size_t> & out_ids = ctx->sbatch.out_ids;
if (!out_ids.empty()) {
uint32_t n_vocab = ctx->model.hparams.n_vocab;
uint32_t n_embd = ctx->model.hparams.n_embd;
int32_t n_outputs = ctx->n_outputs;
GGML_ASSERT((size_t) n_outputs == out_ids.size());
// TODO: is there something more efficient which also minimizes swaps?
// selection sort, to minimize swaps (from https://en.wikipedia.org/wiki/Selection_sort)
for (int32_t i = 0; i < n_outputs - 1; ++i) {
int32_t j_min = i;
for (int32_t j = i + 1; j < n_outputs; ++j) {
if (out_ids[j] < out_ids[j_min]) {
j_min = j;
}
}
if (j_min == i) { continue; }
std::swap(out_ids[i], out_ids[j_min]);
if (ctx->logits_size > 0) {
for (uint32_t k = 0; k < n_vocab; k++) {
std::swap(ctx->logits[i*n_vocab + k], ctx->logits[j_min*n_vocab + k]);
}
}
if (ctx->embd_size > 0) {
for (uint32_t k = 0; k < n_embd; k++) {
std::swap(ctx->embd[i*n_embd + k], ctx->embd[j_min*n_embd + k]);
}
}
}
std::fill(ctx->output_ids.begin(), ctx->output_ids.end(), -1);
for (int32_t i = 0; i < n_outputs; ++i) {
ctx->output_ids[out_ids[i]] = i;
}
out_ids.clear();
}
}
//
// quantization
//
@ -17855,7 +17854,7 @@ struct llama_data_write {
}
void write_output_ids(struct llama_context * ctx) {
llama_reorder_outputs(ctx);
llama_output_reorder(ctx);
const uint32_t n_outputs = ctx->n_outputs;
@ -18891,7 +18890,7 @@ float * llama_get_logits(struct llama_context * ctx) {
// reorder logits for backward compatibility
// TODO: maybe deprecate this
llama_reorder_outputs(ctx);
llama_output_reorder(ctx);
return ctx->logits;
}
@ -18939,7 +18938,7 @@ float * llama_get_embeddings(struct llama_context * ctx) {
// reorder embeddings for backward compatibility
// TODO: maybe deprecate this
llama_reorder_outputs(ctx);
llama_output_reorder(ctx);
return ctx->embd;
}