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-rw-r--r--llama.cpp/src/llama-batch.cpp917
1 files changed, 917 insertions, 0 deletions
diff --git a/llama.cpp/src/llama-batch.cpp b/llama.cpp/src/llama-batch.cpp
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+++ b/llama.cpp/src/llama-batch.cpp
@@ -0,0 +1,917 @@
+#include "llama-batch.h"
+
+#include "llama-impl.h"
+#include "llama-vocab.h"
+#include "llama-memory.h"
+
+#include <cassert>
+#include <cstring>
+#include <algorithm>
+#include <sstream>
+
+llama_batch_allocr::llama_batch_allocr(uint32_t n_pos_per_embd) : n_pos_per_embd(n_pos_per_embd) {
+ const char * LLAMA_BATCH_DEBUG = getenv("LLAMA_BATCH_DEBUG");
+ debug = LLAMA_BATCH_DEBUG ? atoi(LLAMA_BATCH_DEBUG) : 0;
+
+ seq_pos.resize(LLAMA_MAX_SEQ);
+ seq_cpl.resize(LLAMA_MAX_SEQ);
+ for (auto & cur : seq_cpl) {
+ cur.resize(LLAMA_MAX_SEQ);
+ }
+
+ seq_idx.resize(LLAMA_MAX_SEQ, -1);
+}
+
+bool llama_batch_allocr::init(
+ const llama_batch & batch_inp,
+ const llama_vocab & vocab,
+ const llama_memory_i * memory,
+ uint32_t n_embd,
+ uint32_t n_seq_max,
+ bool output_all) {
+ clear();
+
+ batch = batch_inp;
+
+ this->vocab = &vocab;
+
+ GGML_ASSERT(batch.n_tokens > 0);
+
+ //
+ // validate input batch
+ //
+
+ if (n_seq_max > LLAMA_MAX_SEQ) {
+ LLAMA_LOG_ERROR("%s: n_seq_max = %d > %d\n", __func__, n_seq_max, LLAMA_MAX_SEQ);
+ return false;
+ }
+
+ if (batch.token) {
+ for (int32_t i = 0; i < batch.n_tokens; ++i) {
+ if (batch.token[i] < 0 || (uint32_t) batch.token[i] >= vocab.n_tokens()) {
+ LLAMA_LOG_ERROR("%s: invalid token[%d] = %d\n", __func__, i, batch.token[i]);
+ return false;
+ }
+ }
+ }
+
+ if (batch.seq_id) {
+ for (int32_t i = 0; i < batch.n_tokens; ++i) {
+ for (int32_t s = 0; s < batch.n_seq_id[i]; ++s) {
+ if (batch.seq_id && (batch.seq_id[i][s] < 0 || batch.seq_id[i][s] >= (llama_seq_id) n_seq_max)) {
+ LLAMA_LOG_ERROR("%s: invalid seq_id[%d][%d] = %d >= %d\n", __func__, i, s, batch.seq_id[i][s], (llama_seq_id) n_seq_max);
+ return false;
+ }
+ }
+ }
+ }
+
+ //
+ // auto-generate missing fields
+ //
+
+ if (!batch.n_seq_id) {
+ n_seq_id.resize(batch.n_tokens);
+ for (int32_t i = 0; i < batch.n_tokens; i++) {
+ n_seq_id[i] = seq_id_0.size();
+ }
+ batch.n_seq_id = n_seq_id.data();
+ }
+
+ if (!batch.seq_id) {
+ seq_id.resize(batch.n_tokens + 1);
+ seq_id[batch.n_tokens] = NULL;
+ for (int32_t i = 0; i < batch.n_tokens; i++) {
+ seq_id[i] = seq_id_0.data();
+ }
+ batch.seq_id = seq_id.data();
+ }
+
+ if (!batch.pos) {
+ pos.resize(batch.n_tokens);
+
+ // initialize the starting position for each sequence based on the positions in the memory
+ llama_pos p0[LLAMA_MAX_SEQ];
+ for (uint32_t s = 0; s < n_seq_max; ++s) {
+ if (!memory) {
+ // if no memory -> start from 0
+ p0[s] = 0;
+ } else {
+ p0[s] = memory->seq_pos_max(s) + 1;
+ }
+ }
+
+ for (int32_t i = 0; i < batch.n_tokens; i++) {
+ const llama_seq_id seq_id = batch.seq_id[i][0];
+
+ pos[i] = p0[seq_id];
+
+ // update the starting position for all sequences that are assigned to the this token
+ for (int32_t s = 0; s < batch.n_seq_id[i]; ++s) {
+ const llama_seq_id seq_id = batch.seq_id[i][s];
+
+ p0[seq_id] = pos[i] + 1;
+ }
+ }
+
+ batch.pos = pos.data();
+ }
+
+ if (!batch.logits) {
+ if (output_all) {
+ // return the output for all tokens
+ output.resize(batch.n_tokens, true);
+ } else {
+ // return the output only for the last token
+ output.resize(batch.n_tokens, false);
+ output[output.size() - 1] = true;
+ }
+
+ batch.logits = output.data();
+ } else if (output_all) {
+ bool warn = false;
+
+ for (int32_t i = 0; i < batch.n_tokens; ++i) {
+ if (batch.logits[i] == 0) {
+ warn = true;
+ }
+ }
+
+ if (warn) {
+ LLAMA_LOG_WARN("%s: embeddings required but some input tokens were not marked as outputs -> overriding\n", __func__);
+
+ output.resize(batch.n_tokens, true);
+ batch.logits = output.data();
+ }
+ }
+
+ //
+ // compute stats
+ //
+
+ this->n_embd = n_embd;
+ this->n_seq_max = n_seq_max;
+
+ // count the outputs in this batch
+ for (int32_t i = 0; i < batch.n_tokens; ++i) {
+ n_outputs += batch.logits[i] != 0;
+ }
+
+ has_cpl = false;
+
+ // determine coupled sequences
+ // these are pairs of sequences that have at least one token in the input batch that is assigned to both of them
+ for (int32_t i = 0; i < batch.n_tokens; ++i) {
+ const llama_seq_id s0 = batch.seq_id[i][0];
+
+ for (int32_t s = 0; s < batch.n_seq_id[i]; ++s) {
+ const llama_seq_id s1 = batch.seq_id[i][s];
+
+ seq_pos[s1].insert(batch.pos[i]);
+
+ if (s > 0) {
+ // mark that sequence s1 is coupled to s0
+ seq_cpl[s1][s0] = true;
+
+ // note: tracking the other way around is not necessary for now
+ //seq_cpl[s0][s1] = true;
+
+ has_cpl = true;
+ }
+ }
+ }
+
+ // precompute the sequence sets for each token and determine the unique sequence ids that participate in the batch
+ {
+ seq_set_t seq_set_unq;
+
+ for (int32_t i = 0; i < batch.n_tokens; ++i) {
+ seq_set_t cur;
+ for (int32_t s = 0; s < batch.n_seq_id[i]; ++s) {
+ const llama_seq_id seq_id = batch.seq_id[i][s];
+
+ cur .set(seq_id);
+ seq_set_unq.set(seq_id);
+ }
+
+ seq_set.push_back(cur);
+ seq_set_map[cur].push_back(i);
+ }
+
+ for (uint32_t s = 0; s < n_seq_max; ++s) {
+ if (seq_set_unq.test(s)) {
+ seq_idx[s] = seq_id_unq.size();
+ seq_id_unq.push_back(s);
+ }
+ }
+ }
+
+ if (debug > 0) {
+ LLAMA_LOG_DEBUG("%s: input batch info:\n", __func__);
+
+ llama_ubatch ubatch {
+ /*.b_equal_seqs =*/ false,
+ /*.n_tokens =*/ (uint32_t) batch.n_tokens,
+ /*.n_seq_tokens =*/ (uint32_t) 1,
+ /*.n_seqs =*/ (uint32_t) batch.n_tokens,
+ /*.n_seqs_unq =*/ (uint32_t) this->seq_id_unq.size(),
+ /*.n_pos =*/ n_pos_per_embd,
+ /*.token =*/ batch.token,
+ /*.embd =*/ batch.embd,
+ /*.pos =*/ batch.pos,
+ /*.n_seq_id =*/ batch.n_seq_id,
+ /*.seq_id =*/ batch.seq_id,
+ /*.seq_id_unq =*/ this->seq_id_unq.data(),
+ /*.seq_idx =*/ this->seq_idx.data(),
+ /*.output =*/ batch.logits,
+ /*.data =*/ {},
+ };
+
+ ubatch_print(ubatch, debug);
+
+ LLAMA_LOG_DEBUG("%s: seq = [\n", __func__);
+ for (int s0 = 0; s0 < (int) seq_pos.size(); ++s0) {
+ if (seq_pos[s0].empty()) {
+ continue;
+ }
+
+ std::stringstream ss;
+ for (int s1 = 0; s1 < (int) seq_cpl[s0].size(); ++s1) {
+ if (seq_cpl[s0][s1]) {
+ ss << s1 << " ";
+ }
+ }
+
+ LLAMA_LOG_DEBUG("%s: %4d: pos = [%4d, %4d], cpl = %s\n",
+ __func__, s0, seq_pos_min(s0), seq_pos_max(s0), ss.str().empty() ? "-" : ss.str().c_str());
+ }
+ LLAMA_LOG_DEBUG("%s: ]\n", __func__);
+ }
+
+ //
+ // consistency checks
+ //
+
+ if (n_pos_per_embd > 1) {
+ // M-RoPE case: allow position to "jump" forward only (non-continuous positions are allowed)
+ for (uint32_t s = 0; s < n_seq_max; ++s) {
+ if (seq_pos[s].empty()) {
+ continue;
+ }
+
+ const llama_pos p0 = memory ? memory->seq_pos_max(s) : -1;
+
+ if (batch.token) {
+ if (p0 >= 0 && p0 >= seq_pos_min(s)) {
+ LLAMA_LOG_ERROR(
+ "%s: the tokens of sequence %d in the input batch have inconsistent sequence positions:\n"
+ " - the last position stored in the memory module of the context (i.e. the KV cache) for sequence %d is X = %d\n"
+ " - the tokens for sequence %d in the input batch have a starting position of Y = %d\n"
+ " for M-RoPE, it is required that the position satisfies: X < Y\n",
+ __func__, s, s, p0, s, seq_pos_min(s));
+
+ return false;
+ }
+ } else {
+ // embedding inputs can have overlapping positions
+ if (p0 >= 0 && p0 > seq_pos_min(s)) {
+ LLAMA_LOG_ERROR(
+ "%s: the tokens of sequence %d in the input batch have inconsistent sequence positions:\n"
+ " - the last position stored in the memory module of the context (i.e. the KV cache) for sequence %d is X = %d\n"
+ " - the tokens for sequence %d in the input batch have a starting position of Y = %d\n"
+ " for M-RoPE, it is required that the position satisfies: X <= Y\n",
+ __func__, s, s, p0, s, seq_pos_min(s));
+
+ return false;
+ }
+ }
+ }
+ } else {
+ for (uint32_t s = 0; s < n_seq_max; ++s) {
+ if (seq_pos[s].empty()) {
+ continue;
+ }
+
+ const llama_pos p0 = memory ? memory->seq_pos_max(s) : -1;
+
+ if (p0 >= 0) {
+ bool ok = true;
+
+ if (seq_pos_min(s) != p0 + 1) {
+ ok = false;
+ }
+
+ if (!ok) {
+ LLAMA_LOG_ERROR(
+ "%s: the tokens of sequence %d in the input batch have inconsistent sequence positions:\n"
+ " - the last position stored in the memory module of the context (i.e. the KV cache) for sequence %d is X = %d\n"
+ " - the tokens for sequence %d in the input batch have a starting position of Y = %d\n"
+ " it is required that the sequence positions remain consecutive: Y = X + 1\n",
+ __func__, s, s, p0, s, seq_pos_min(s));
+
+ return false;
+ }
+ }
+
+ if (seq_pos_max(s) - seq_pos_min(s) + 1 > (int) seq_pos[s].size()) {
+ LLAMA_LOG_ERROR("%s: sequence %d positions are not continuous\n", __func__, s);
+ return false;
+ }
+ }
+ }
+
+ if (memory) {
+ for (uint32_t s0 = 0; s0 < n_seq_max; ++s0) {
+ for (uint32_t s1 = 0; s1 < n_seq_max; ++s1) {
+ if (seq_cpl[s0][s1]) {
+ if (memory->seq_pos_min(s0) != memory->seq_pos_min(s1) ||
+ memory->seq_pos_max(s0) != memory->seq_pos_max(s1)) {
+ LLAMA_LOG_ERROR("%s: sequence %d is coupled to %d in the input batch, but have divereged\n", __func__, s0, s1);
+ return false;
+ }
+ }
+ }
+ }
+ }
+
+ // disallow partial sequence sub-sets:
+ //
+ // invalid: x
+ // i: 0 1 2 ...
+ // ---------------------------------------
+ // seq_id[i][0]: 0 0 1
+ // seq_id[i][1]: 1 1 2
+ // seq_id[i][2]: 2
+ //
+ // disallow decreasing sequence positions:
+ //
+ // invalid: x
+ // i: 0 1 2 3 4 5 6 ...
+ // ---------------------------------------
+ // pos[i]: 4 5 0 1 6 2 3
+ // seq_id[i][0]: 0 0 1 1 0 1 0
+ //
+ {
+ seq_set_t cur_seq_set[LLAMA_MAX_SEQ];
+ for (uint32_t s = 0; s < n_seq_max; ++s) {
+ cur_seq_set[s].set();
+ }
+
+ llama_pos cur_seq_pos[LLAMA_MAX_SEQ];
+ for (uint32_t s = 0; s < n_seq_max; ++s) {
+ cur_seq_pos[s] = -1;
+ }
+
+ for (int32_t i = 0; i < batch.n_tokens; ++i) {
+ const llama_pos pos = batch.pos[i];
+
+ for (int32_t s = 0; s < batch.n_seq_id[i]; ++s) {
+ const llama_seq_id seq_id = batch.seq_id[i][s];
+
+ cur_seq_set[seq_id] &= seq_set[i];
+
+ if (cur_seq_set[seq_id].none()) {
+ LLAMA_LOG_ERROR("%s: sequence %d belongs to incompatible sequence sets (not allowed)\n", __func__, seq_id);
+ return false;
+ }
+
+ if (pos < cur_seq_pos[seq_id]) {
+ LLAMA_LOG_ERROR("%s: sequence %d positions are decreasing (not allowed)\n", __func__, seq_id);
+ return false;
+ }
+ }
+ }
+ }
+
+ split_reset();
+
+ return true;
+}
+
+llama_ubatch llama_batch_allocr::ubatch_reserve(uint32_t n_seq_tokens, uint32_t n_seqs) {
+ const uint32_t n_tokens = n_seq_tokens*n_seqs;
+
+ clear();
+ split_reset();
+
+ auto udata = std::make_shared<llama_ubatch::data_t>();
+
+ udata->token .resize(n_tokens);
+ udata->embd .clear();
+ udata->pos .resize(n_tokens);
+ udata->n_seq_id .resize(n_tokens);
+ udata->seq_id .resize(n_tokens);
+ udata->seq_id_unq.resize(0);
+ udata->seq_idx .resize(LLAMA_MAX_SEQ, -1);
+ udata->output .resize(n_tokens);
+
+ for (uint32_t s = 0; s < n_seqs; ++s) {
+ udata->seq_idx[s] = s;
+ udata->seq_id_unq.push_back(s);
+ }
+
+ llama_ubatch res {
+ /*.b_equal_seqs =*/ true,
+ /*.n_tokens =*/ n_tokens,
+ /*.n_seq_tokens =*/ n_seq_tokens,
+ /*.n_seqs =*/ n_seqs,
+ /*.n_seqs_unq =*/ n_seqs,
+ /*.n_pos =*/ n_pos_per_embd,
+
+ /*.token =*/ udata->token.data(),
+ /*.embd =*/ nullptr,
+ /*.pos =*/ udata->pos.data(),
+ /*.n_seq_id =*/ udata->n_seq_id.data(),
+ /*.seq_id =*/ udata->seq_id.data(),
+ /*.seq_id_unq =*/ udata->seq_id_unq.data(),
+ /*.seq_idx =*/ udata->seq_idx.data(),
+ /*.output =*/ udata->output.data(),
+ /*.data =*/ std::move(udata),
+ };
+
+ return res;
+}
+
+const llama_batch & llama_batch_allocr::get_batch() const {
+ return batch;
+}
+
+uint32_t llama_batch_allocr::get_n_tokens() const {
+ return batch.n_tokens;
+}
+
+uint32_t llama_batch_allocr::get_n_outputs() const {
+ return n_outputs;
+}
+
+uint32_t llama_batch_allocr::get_n_used() const {
+ return n_used;
+}
+
+std::vector<int32_t> & llama_batch_allocr::get_out_ids() {
+ return out_ids;
+}
+
+llama_pos llama_batch_allocr::seq_pos_min(llama_seq_id seq_id) const {
+ return seq_pos[seq_id].empty() ? -1 : *seq_pos[seq_id].begin();
+}
+
+llama_pos llama_batch_allocr::seq_pos_max(llama_seq_id seq_id) const {
+ return seq_pos[seq_id].empty() ? -1 : *seq_pos[seq_id].rbegin();
+}
+
+void llama_batch_allocr::split_reset() {
+ out_ids.clear();
+
+ n_used = 0;
+
+ used.clear();
+ used.resize(get_n_tokens(), false);
+}
+
+llama_ubatch llama_batch_allocr::split_simple(uint32_t n_ubatch) {
+ // find the first unused token
+ uint32_t cur_idx = 0;
+ while (cur_idx < used.size() && used[cur_idx]) {
+ ++cur_idx;
+ }
+
+ // we are done
+ if (cur_idx >= used.size()) {
+ return {};
+ }
+
+ std::vector<int32_t> idxs;
+
+ while (true) {
+ idxs.push_back(cur_idx);
+
+ used[cur_idx] = true;
+ ++n_used;
+
+ ++cur_idx;
+
+ if (cur_idx >= used.size()) {
+ break;
+ }
+
+ if (idxs.size() >= n_ubatch) {
+ break;
+ }
+ }
+
+ return ubatch_add(idxs, idxs.size(), false);
+}
+
+llama_ubatch llama_batch_allocr::split_equal(uint32_t n_ubatch, bool sequential) {
+ if (sequential && has_cpl) {
+ LLAMA_LOG_ERROR("%s: sequential split is not supported when there are coupled sequences in the input batch (you may need to use the -kvu flag)\n", __func__);
+
+ return {};
+ }
+
+ std::vector<seq_set_t> cur_seq_set;
+
+ llama_seq_id last_seq_id = -1;
+
+ // determine the non-overlapping sequence sets participating in this ubatch
+ for (int32_t i = 0; i < batch.n_tokens; ++i) {
+ if (used[i]) {
+ continue;
+ }
+
+ bool add = true;
+
+ for (uint32_t s = 0; s < cur_seq_set.size(); ++s) {
+ // no overlap with existing sequence sets:
+ if (!(cur_seq_set[s] & seq_set[i]).none()) {
+ add = false;
+ break;
+ }
+ }
+
+ // accept only increasing sequence ids
+ if (sequential) {
+ add = add && (cur_seq_set.empty() || batch.seq_id[i][0] == last_seq_id + 1);
+ }
+
+ if (add) {
+ cur_seq_set.push_back(seq_set[i]);
+
+ last_seq_id = batch.seq_id[i][0];
+
+ if (cur_seq_set.size() > n_ubatch) {
+ break;
+ }
+ }
+ }
+
+ const uint32_t n_seqs = cur_seq_set.size();
+
+ // we are done
+ if (n_seqs == 0) {
+ return {};
+ }
+
+ // the current batch index of each sequence set
+ std::vector<int32_t> cur_idx(n_seqs, 0);
+
+ for (uint32_t s = 0; s < n_seqs; ++s) {
+ while (used[seq_set_map[cur_seq_set[s]][cur_idx[s]]]) {
+ ++cur_idx[s];
+ }
+ }
+
+ // the list of batch indices for each sequence set
+ // at the end we will concat these to get the final ubatch
+ std::vector<idx_vec_t> idxs_per_seq(n_seqs);
+
+ while (true) {
+ // we can only add new n_seq_tokens tokens if all the sequence sets have at least one more unused token and
+ // if we haven't reached n_ubatch
+ bool can_expand = true;
+
+ for (uint32_t s = 0; s < n_seqs; ++s) {
+ if (cur_idx[s] >= (int32_t) seq_set_map[cur_seq_set[s]].size()) {
+ can_expand = false;
+ break;
+ }
+ }
+
+ if (!can_expand) {
+ break;
+ }
+
+ for (uint32_t s = 0; s < n_seqs; ++s) {
+ const int32_t idx = seq_set_map[cur_seq_set[s]][cur_idx[s]];
+
+ idxs_per_seq[s].push_back(idx);
+
+ used[idx] = true;
+ ++n_used;
+
+ ++cur_idx[s];
+ }
+
+ if ((idxs_per_seq[0].size() + 1)*n_seqs > n_ubatch) {
+ break;
+ }
+ }
+
+ // concat the per-sequence-set lists
+ std::vector<int32_t> idxs;
+
+ for (uint32_t s = 0; s < n_seqs; ++s) {
+ idxs.insert(idxs.end(), idxs_per_seq[s].begin(), idxs_per_seq[s].end());
+ }
+
+ return ubatch_add(idxs, n_seqs, true);
+}
+
+llama_ubatch llama_batch_allocr::split_seq(uint32_t n_ubatch) {
+ // find the first unused token
+ uint32_t cur_idx = 0;
+ while (cur_idx < used.size() && used[cur_idx]) {
+ ++cur_idx;
+ }
+
+ // we are done
+ if (cur_idx >= used.size()) {
+ return {};
+ }
+
+ // this is the starting sequence set
+ // we allow adding tokens only if their sequence set is a subset of the current sequence set
+ auto cur_seq_set = seq_set[cur_idx];
+
+ std::vector<int32_t> idxs;
+
+ while (true) {
+ idxs.push_back(cur_idx);
+
+ used[cur_idx] = true;
+ ++n_used;
+
+ if (idxs.size() >= n_ubatch) {
+ break;
+ }
+
+ do {
+ ++cur_idx;
+ } while (cur_idx < get_n_tokens() && (used[cur_idx] || ((cur_seq_set & seq_set[cur_idx]) != seq_set[cur_idx])));
+
+ if (cur_idx == get_n_tokens()) {
+ break;
+ }
+
+ cur_seq_set = seq_set[cur_idx];
+ }
+
+ return ubatch_add(idxs, 1, true);
+}
+
+void llama_batch_allocr::clear() {
+ n_outputs = 0;
+
+ batch = {};
+
+ pos .clear();
+ n_seq_id .clear();
+ seq_id .clear();
+ seq_id_unq.clear();
+ output .clear();
+
+ for (auto & cur : seq_pos) {
+ cur.clear();
+ }
+
+ for (auto & cur : seq_cpl) {
+ std::fill(cur.begin(), cur.end(), false);
+ }
+
+ seq_set.clear();
+
+ seq_set_map.clear();
+
+ std::fill(seq_idx.begin(), seq_idx.end(), -1);
+}
+
+llama_ubatch llama_batch_allocr::ubatch_add(const std::vector<int32_t> & idxs, uint32_t n_seqs, bool equal_seqs) {
+ const uint32_t n_tokens = idxs.size();
+
+ assert(n_tokens%n_seqs == 0);
+
+ auto udata = std::make_shared<llama_ubatch::data_t>();
+
+ const int64_t n_embd_all = batch.embd ? (int64_t) n_tokens*n_embd : 0;
+ const int64_t n_pos_all = (int64_t) n_tokens*n_pos_per_embd;
+
+ udata->token .resize(n_tokens);
+ udata->embd .resize(n_embd_all);
+ udata->pos .resize(n_pos_all);
+ udata->n_seq_id .resize(n_tokens);
+ udata->seq_id .resize(n_tokens);
+ udata->seq_id_unq.resize(0);
+ udata->seq_idx .resize(LLAMA_MAX_SEQ, -1);
+ udata->output .resize(n_tokens);
+
+ udata->seq_id_data.reserve(n_tokens);
+
+ seq_set_t seq_set_unq;
+
+ for (size_t i = 0; i < idxs.size(); ++i) {
+ if (batch.token) {
+ udata->token[i] = batch.token[idxs[i]];
+ }
+
+ if (batch.embd) {
+ memcpy(udata->embd.data() + i*n_embd, batch.embd + (int64_t) idxs[i]*n_embd, n_embd*sizeof(float));
+ }
+
+ for (size_t j = 0; j < (size_t)n_pos_per_embd; ++j) {
+ // if we are using M-RoPE
+ // if the current batch is text, we need to broadcast the same position across all RoPE sections
+ // otherwise, the input batch is image embeddings, we copy the positions as-is
+ // if we are not using M-RoPE, there is only one position per token (this loop runs only once)
+ size_t src_off = batch.token ? 0 : j*batch.n_tokens;
+ udata->pos[j*n_tokens + i] = batch.pos[src_off + idxs[i]];
+ }
+
+ udata->n_seq_id[i] = batch.n_seq_id[idxs[i]];
+ udata->output[i] = batch.logits[idxs[i]];
+
+ for (int s = 0; s < udata->n_seq_id[i]; ++s) {
+ const llama_seq_id seq_id = batch.seq_id[idxs[i]][s];
+
+ udata->seq_id_data.push_back(seq_id);
+ seq_set_unq.set(seq_id);
+ }
+
+ if (udata->output[i]) {
+ out_ids.push_back(idxs[i]);
+ }
+ }
+
+ llama_seq_id * seq_id_ptr = udata->seq_id_data.data();
+ for (size_t i = 0; i < idxs.size(); ++i) {
+ udata->seq_id[i] = seq_id_ptr;
+ seq_id_ptr += udata->n_seq_id[i];
+ }
+
+ for (uint32_t s = 0; s < n_seq_max; ++s) {
+ if (seq_set_unq.test(s)) {
+ udata->seq_idx[s] = udata->seq_id_unq.size();
+ udata->seq_id_unq.push_back(s);
+ }
+ }
+
+ llama_ubatch res {
+ /*.b_equal_seqs =*/ equal_seqs,
+ /*.n_tokens =*/ n_tokens,
+ /*.n_seq_tokens =*/ n_tokens/n_seqs,
+ /*.n_seqs =*/ n_seqs,
+ /*.n_seqs_unq =*/ (uint32_t) udata->seq_id_unq.size(),
+ /*.n_pos =*/ n_pos_per_embd,
+
+ /*.token =*/ batch.token ? udata->token.data() : nullptr,
+ /*.embd =*/ batch.embd ? udata->embd.data() : nullptr,
+ /*.pos =*/ udata->pos.data(),
+ /*.n_seq_id =*/ udata->n_seq_id.data(),
+ /*.seq_id =*/ udata->seq_id.data(),
+ /*.seq_id_unq =*/ udata->seq_id_unq.data(),
+ /*.seq_idx =*/ udata->seq_idx.data(),
+ /*.output =*/ udata->output.data(),
+ /*.data =*/ std::move(udata),
+ };
+
+ if (debug > 0) {
+ LLAMA_LOG_DEBUG("%s: added ubatch to split:\n", __func__);
+
+ ubatch_print(res, debug);
+ }
+
+ return res;
+}
+
+void llama_batch_allocr::ubatch_print(const llama_ubatch & ubatch, int debug) {
+ if (debug > 0) {
+ LLAMA_LOG_DEBUG("%s: equal_seqs = %d\n", __func__, ubatch.equal_seqs());
+ LLAMA_LOG_DEBUG("%s: n_tokens = %d\n", __func__, ubatch.n_tokens);
+ LLAMA_LOG_DEBUG("%s: n_seq_tokens = %d\n", __func__, ubatch.n_seq_tokens);
+ LLAMA_LOG_DEBUG("%s: n_seqs = %d\n", __func__, ubatch.n_seqs);
+ LLAMA_LOG_DEBUG("%s: n_seqs_unq = %d\n", __func__, ubatch.n_seqs_unq);
+
+ std::stringstream ss_seq_id_unq;
+ std::stringstream ss_seq_idx;
+
+ ss_seq_id_unq << "[ ";
+ ss_seq_idx << "[";
+
+ for (uint32_t s = 0; s < ubatch.n_seqs_unq; ++s) {
+ ss_seq_id_unq << ubatch.seq_id_unq[s] << " ";
+ }
+
+ for (uint32_t s = 0; s < LLAMA_MAX_SEQ; ++s) {
+ if (ubatch.seq_idx[s] >= 0) {
+ ss_seq_idx << ubatch.seq_idx[s]%10;
+ } else {
+ ss_seq_idx << ".";
+ }
+ }
+
+ ss_seq_id_unq << "]";
+ ss_seq_idx << "]";
+
+ LLAMA_LOG_DEBUG("%s: token = %p\n", __func__, (void *) ubatch.token);
+ LLAMA_LOG_DEBUG("%s: embd = %p\n", __func__, (void *) ubatch.embd);
+ LLAMA_LOG_DEBUG("%s: pos = %p\n", __func__, (void *) ubatch.pos);
+ LLAMA_LOG_DEBUG("%s: n_seq_id = %p\n", __func__, (void *) ubatch.n_seq_id);
+ LLAMA_LOG_DEBUG("%s: seq_id = %p\n", __func__, (void *) ubatch.seq_id);
+ LLAMA_LOG_DEBUG("%s: seq_id_unq = %s\n", __func__, ss_seq_id_unq.str().c_str());
+ LLAMA_LOG_DEBUG("%s: seq_idx = %s\n", __func__, ss_seq_idx.str().c_str());
+ LLAMA_LOG_DEBUG("%s: output = %p\n", __func__, (void *) ubatch.output);
+ LLAMA_LOG_DEBUG("%s: n_outputs = %d\n", __func__, n_outputs);
+
+ if (debug > 1) {
+ int seq_id_max = 0;
+ for (uint32_t i = 0; i < ubatch.n_tokens; ++i) {
+ for (int s = 0; s < ubatch.n_seq_id[i]; ++s) {
+ for (int s = 0; s < ubatch.n_seq_id[i]; ++s) {
+ seq_id_max = std::max(seq_id_max, ubatch.seq_id[i][s]);
+ }
+ }
+ }
+ ++seq_id_max;
+
+ LLAMA_LOG_DEBUG("%s: token = [\n", __func__);
+ for (uint32_t i = 0; i < ubatch.n_tokens; ++i) {
+ std::vector<int8_t> seq_id(seq_id_max);
+
+ for (int s = 0; s < ubatch.n_seq_id[i]; ++s) {
+ seq_id[ubatch.seq_id[i][s]] = 1;
+ }
+
+ std::stringstream ss;
+ for (int s = 0; s < seq_id_max; ++s) {
+ if (seq_id[s]) {
+ ss << s%10;
+ } else {
+ ss << ".";
+ }
+ }
+
+ if (ubatch.token) {
+ LLAMA_LOG_DEBUG("%s: %4d: id = %6d (%16s), pos = %4d, n_seq_id = %2d, seq_id = [%s], output = %d\n",
+ __func__, i, ubatch.token[i], vocab->token_to_piece(ubatch.token[i]).c_str(),
+ ubatch.pos[i], ubatch.n_seq_id[i], ss.str().c_str(), ubatch.output[i]);
+ } else {
+ LLAMA_LOG_DEBUG("%s: %4d: [embd], pos = %4d, n_seq_id = %2d, seq_id = [%s], output = %d\n",
+ __func__, i, ubatch.pos[i], ubatch.n_seq_id[i], ss.str().c_str(), ubatch.output[i]);
+ }
+ }
+ LLAMA_LOG_DEBUG("%s: ]\n", __func__);
+ }
+ }
+}
+
+//
+// interface implementation
+//
+
+struct llama_batch llama_batch_get_one(
+ llama_token * tokens,
+ int32_t n_tokens) {
+ return {
+ /*n_tokens =*/ n_tokens,
+ /*tokens =*/ tokens,
+ /*embd =*/ nullptr,
+ /*pos =*/ nullptr,
+ /*n_seq_id =*/ nullptr,
+ /*seq_id =*/ nullptr,
+ /*logits =*/ nullptr,
+ };
+}
+
+struct llama_batch llama_batch_init(int32_t n_tokens_alloc, int32_t embd, int32_t n_seq_max) {
+ llama_batch batch = {
+ /*n_tokens =*/ 0,
+ /*tokens =*/ nullptr,
+ /*embd =*/ nullptr,
+ /*pos =*/ nullptr,
+ /*n_seq_id =*/ nullptr,
+ /*seq_id =*/ nullptr,
+ /*logits =*/ nullptr,
+ };
+
+ if (embd) {
+ batch.embd = (float *) malloc(sizeof(float) * n_tokens_alloc * embd);
+ } else {
+ batch.token = (llama_token *) malloc(sizeof(llama_token) * n_tokens_alloc);
+ }
+
+ batch.pos = (llama_pos *) malloc(sizeof(llama_pos) * n_tokens_alloc);
+ batch.n_seq_id = (int32_t *) malloc(sizeof(int32_t) * n_tokens_alloc);
+ batch.seq_id = (llama_seq_id **) malloc(sizeof(llama_seq_id *) * (n_tokens_alloc + 1));
+ for (int i = 0; i < n_tokens_alloc; ++i) {
+ batch.seq_id[i] = (llama_seq_id *) malloc(sizeof(llama_seq_id) * n_seq_max);
+ }
+ batch.seq_id[n_tokens_alloc] = nullptr;
+
+ batch.logits = (int8_t *) malloc(sizeof(int8_t) * n_tokens_alloc);
+
+ return batch;
+}
+
+void llama_batch_free(struct llama_batch batch) {
+ if (batch.token) free(batch.token);
+ if (batch.embd) free(batch.embd);
+ if (batch.pos) free(batch.pos);
+ if (batch.n_seq_id) free(batch.n_seq_id);
+ if (batch.seq_id) {
+ for (int i = 0; batch.seq_id[i] != nullptr; ++i) {
+ free(batch.seq_id[i]);
+ }
+ free(batch.seq_id);
+ }
+ if (batch.logits) free(batch.logits);
+}