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[EAGLE] Configurable number of TTT steps #1042

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Merged
yeyu-nvidia merged 1 commit into from
Mar 18, 2026
+12 −1
Merged

[EAGLE] Configurable number of TTT steps #1042

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6 changes: 6 additions & 0 deletions examples/speculative_decoding/launch_train.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -86,6 +86,10 @@ while [ $# -gt 0 ]; do
if [[ "$1" != *=* ]]; then shift; fi
AR_VALIDATE_STEPS="${1#*=}"
;;
--num_ttt_steps*)
if [[ "$1" != *=* ]]; then shift; fi
NUM_TTT_STEPS="${1#*=}"
;;
--cp_size*)
if [[ "$1" != *=* ]]; then shift; fi
CP_SIZE="${1#*=}"
Expand Down Expand Up @@ -154,6 +158,7 @@ DP_SHARD_SIZE=${DP_SHARD_SIZE:-$((TOTAL_GPU/CP_SIZE))}
LOG_STEPS=${LOG_STEPS:-100}
DRAFT_VOCAB_CACHE=${DRAFT_VOCAB_CACHE:-""}
MIX_HIDDEN_STATES=${MIX_HIDDEN_STATES:-"False"}
NUM_TTT_STEPS=${NUM_TTT_STEPS:-3}


if [[ "$MODE" == "eagle3" ]]; then
Expand Down Expand Up @@ -247,6 +252,7 @@ CMD="accelerate launch $MULTI_NODE_ARGS --mixed_precision bf16 ${SCRIPT_DIR}/mai
$FSDP_ARGS \
--cp_size $CP_SIZE \
--dp_shard_size $DP_SHARD_SIZE \
--num_ttt_steps $NUM_TTT_STEPS \
"

start_time=$(date +%s)
Expand Down
5 changes: 5 additions & 0 deletions examples/speculative_decoding/main.py
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Expand Up @@ -130,6 +130,10 @@ class EagleArguments:
default=False,
metadata={"help": "Whether to mix hidden states from previous TTT step."},
)
num_ttt_steps: int = field(
default=3,
metadata={"help": "Number of train-time-test steps to use during training."},
)


def train():
Expand Down Expand Up @@ -208,6 +212,7 @@ def train():
"eagle_decoder_type": eagle_args.eagle_decoder_type,
"eagle_offline": use_offline_training,
"eagle_mix_hidden_states": eagle_args.mix_hidden_states,
"eagle_ttt_steps": eagle_args.num_ttt_steps,
"eagle_architecture_config": custom_config,
}

Expand Down
2 changes: 1 addition & 1 deletion modelopt/torch/speculative/config.py
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Expand Up @@ -101,7 +101,7 @@ class EagleConfig(ModeloptBaseConfig):
)

eagle_ttt_steps: int = ModeloptField(
default=4, description=("The number of train-time-test steps in training.")
default=3, description=("The number of train-time-test steps in training.")
)

eagle_mix_hidden_states: bool = ModeloptField(
Expand Down
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