* Refactor speculative decoding: move logic outside of server
* remove duplicated tokens in mtp kv cache
* narrow to only discard draft cells in MTP
* revert mtp_speculative_gen_draft
* wip: separate llama_context for MTP with graph reuse
* wip: fix KV cache desync with separate MTP context
* refactor: remove dead mtp logic code, encapsulate KV mirroring
* mtp-context: derive args directly from the main model's context
* mtp: fix kv cache positions
* clean small comments
* minor refactor for context shift
* wip: build spec tuner for spefic args
* wip: test different reward system
* spec-tune: fix the reward to find best params given a good TPS
* spec-tune: refactor logic for its own file
* minor clean for comments and modules
* wip: port MTP architecture
Ports the Multi-Token Prediction (MTP) architecture to the older `llama.cpp` codebase used by `ikllama`.
Changes include:
- Updating `llama_batch` to support `mtp_params`.
- Modifying `llama_decode_internal` (and `encode`) to handle MTP operations (Warmup, Update, Draft).
- Adding public APIs for MTP state management (`llama_set_draft_input_hidden_state`).
- Adapting the embedding extraction logic to skip MTP update passes.
* Refactors `server_slot` to support generic speculative decoding (MTP or Draft Model).
* core: enable hybrid outputs (logits + embeddings) for MTP support
* fix(mtp): correct KV-cache slot finding for updates
* fix(mtp): persist hidden states to prevent context corruption during drafting
* refactor(mtp): clean unused code
* fix(mtp): update server to new functions name
* fix(mtp): fix graph and save hidden state
* mtp: refactor integration, context params and kv cache search
* mtp: fix hidden state extraction and speculative acceptance flow
* server: fix MTP warmup for long prompts and reset token buffer
* llama: refactor MTP operation state to context parameters
* server: fix n_past calculation in MTP acceptance
* llama: fix mtp enable flags
* speculative: refactor MTP to use common_speculative interface
* context: remove unused signatures
* clip: fix deprecated enum-enum conversion warning
* common: fix format string crash in help message
* context: fix mtp activation logic
* spec : add self speculative decoding and ngram-mod and refactor
common : use common_ prefix for common library function
llama : use LLAMA_TOKEN_NULL
spec : add self speculative decoding (no draft model required) + refactor
spec : add ngram-mod
spec : various improvements ton ngram-map + docs
spec : fix the check-rate logic of ngram-simple
common : add common_speculative_is_compat()
spec : simplify time measurement using common_time_meas
refactor common_sampler_init
refactor common_token_to_piece
refactor and fix cur_p bug
clean up
* spec : remove check rate
* spec: show warnings instead of abort
---------
Co-authored-by: firecoperana <firecoperana>
Co-authored-by: Sascha Rogmann <59577610+srogmann@users.noreply.github.com>
* server : integrate speculative decoding
* server: Fix field names
* server: fix include, whitespace
* fix compile errors in speculative.cpp
* add llama_sampling_sample_and_accept_n to sampling
* finish porting speculative decoding in server
* port functions from common/speculative, common/sampling
* remove arg
* fix function names
* init params_dft to none
* correct value for n_ctx
* prefix kv cache tensors with model name to avoid conflict
* fix call arguments
* fix spec decoding args
* correct slot.id
* use n_max
* port the rest of sampling funcs
* fix func arguments
* slot.id starts at 1?
* Revert "prefix kv cache tensors with model name to avoid conflict"
This reverts commit fbd5dfd8660ced64a05a23fe3d5526ded635eb4b.
* disable draft logging
* disable logging in speculative.cpp
in mainline, these would be LOG_DEBUG, but since ik_llama doesnt support
it, logging is disabled entirely
* add more draft model parameters
* fix
* pass flash_attn
* add speculative params for parity
* set speculative params in launch_slot_with_task instead
