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cquil11 merged 2 commits into from
Aug 20, 2026
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[AMD][AgentX] Add DeepSeek-V4-Pro FP4 MI355X ATOM MTP #2698

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da2eef3
[AMD][AgentX] Add DeepSeek-V4-Pro FP4 MI355X ATOM MTP
seungrokj Aug 20, 2026
63dd4d7
Use ATOM --spec-decode-acceptance-length flag; bump image and pr-link
seungrokj Aug 20, 2026
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132 changes: 132 additions & 0 deletions benchmarks/single_node/agentic/dsv4_fp4_mi355x_atom_mtp.sh
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@@ -0,0 +1,132 @@
#!/usr/bin/env bash
set -euo pipefail
set -x

# Agentic trace replay benchmark for DeepSeek-V4-Pro FP4 on MI355X using
# ATOM MTP. Throughput runs use the committed golden synthetic acceptance;
# eval-only runs use the model's real MTP acceptance.

source "$(dirname "$0")/../../benchmark_lib.sh"

check_env_vars MODEL TP CONC KV_OFFLOADING TOTAL_CPU_DRAM_GB RESULT_DIR DURATION EP_SIZE DP_ATTENTION

if [[ -n "${SLURM_JOB_ID:-}" ]]; then
echo "JOB $SLURM_JOB_ID running on ${SLURMD_NODENAME:-unknown}"
fi

if [ "$TP" -ne 8 ] || [ "$EP_SIZE" -ne 1 ] || [ "$DP_ATTENTION" != "false" ]; then
echo "This recipe requires TP=8, EP_SIZE=1, and DP_ATTENTION=false" >&2
exit 1
fi
require_agentic_kv_offload_none

if [[ -n "${ROCR_VISIBLE_DEVICES:-}" ]]; then
export HIP_VISIBLE_DEVICES="$ROCR_VISIBLE_DEVICES"
fi

if [[ -n "${MODEL_PATH:-}" ]]; then
if [[ ! -d "$MODEL_PATH" || -z "$(ls -A "$MODEL_PATH" 2>/dev/null)" ]]; then
hf download "$MODEL" --local-dir "$MODEL_PATH"
fi
else
hf download "$MODEL"
export MODEL_PATH="$MODEL"
fi

rocm-smi || true
amd-smi || true

resolve_trace_source
install_agentic_deps

# ATOM runtime settings validated with the DeepSeek-V4-Pro AgentX baseline.
export AITER_BF16_FP8_MOE_BOUND=0
export AITER_LOG_LEVEL=WARNING
export ATOM_MOE_GU_ITLV=1
export ATOM_DISABLE_MMAP=true
export ATOM_DEBUG_PREFIX_HITS=1
export ATOM_PROFILER_MORE=0
export ATOM_PROFILER_TIMEOUT=1200

# AgentX/AIPerf network, failure, warmup, and trace-gap settings from the
# validated one-hour baseline.
export AIPERF_HTTP_TCP_USER_TIMEOUT=900000
export AIPERF_FAILED_REQUEST_THRESHOLD=0.10
export AIPERF_LIVE_FAILED_REQUEST_THRESHOLD=0.10
export AIPERF_TRACE_IDLE_GAP_CAP_SECONDS=300
export AIPERF_WARMUP_REQUESTS_PER_LANE=10
export AIPERF_BENCHMARK_GRACE_PERIOD=30

@claude claude Bot Aug 20, 2026

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🔴 AIPERF_BENCHMARK_GRACE_PERIOD (line 58) isn't a real config var — benchmark_lib.sh only honors AGENTIC_WARMUP_GRACE_PERIOD (default 1800s) for --warmup-grace-period, and this name is referenced nowhere else in the repo. As a result, the perf-changelog's claim of a 3600s warmup grace period at concurrency 32/48 (mirroring dsv4_fp4_mi355x_sglang_mtp.sh's conditional) is never implemented — every arm silently runs at the 1800s default.

Extended reasoning...

The bug: dsv4_fp4_mi355x_atom_mtp.sh:58 sets export AIPERF_BENCHMARK_GRACE_PERIOD=30, but this environment variable is never consumed anywhere in the repository. A repo-wide grep confirms it appears only on this one line. The warmup grace period actually used by the replay harness is controlled by a different variable, AGENTIC_WARMUP_GRACE_PERIOD, which benchmark_lib.sh:2044 reads via --warmup-grace-period ${AGENTIC_WARMUP_GRACE_PERIOD:-1800}. Since the new script never sets AGENTIC_WARMUP_GRACE_PERIOD, every concurrency arm — including 32 and 48 — falls back to the 1800-second default.

Why this matters here: the sibling recipe dsv4_fp4_mi355x_sglang_mtp.sh:172-174 implements exactly this override correctly:

if [ "$CONC" -ge 32 ]; then
    export AGENTIC_WARMUP_GRACE_PERIOD=3600
fi

with the comment "Saturation arms carry a larger in-flight working set than the 30-minute default warmup drain allows." glm5.2_fp4_mi355x_sglang_mtp.sh uses the same pattern. And this very PR's perf-changelog.yaml entry explicitly documents the same intent for the ATOM recipe: "Increase the AgentX warmup grace period from the 1800-second default to 3600 seconds at concurrency 32 and 48 ... Keep concurrency 1 through 16 at the default 1800 seconds." The code that's supposed to realize that claim was never written — instead a plausible-looking but nonexistent variable was set.

Why nothing catches it: set -euo pipefail doesn't fail on setting an unused/unread env var — bash has no concept of "this export is consumed by anything," so the line runs successfully and silently does nothing. There's no lint or CI check tying perf-changelog.yaml prose to the actual exported variables in the recipe script, so the mismatch between documented and actual behavior ships clean.

Step-by-step proof:

  1. dsv4_fp4_mi355x_atom_mtp.sh:58 runs export AIPERF_BENCHMARK_GRACE_PERIOD=30.
  2. The script later calls build_replay_cmd "$RESULT_DIR" (benchmark_lib.sh), which at line 2044 builds the CLI arg: REPLAY_CMD+=" --warmup-grace-period ${AGENTIC_WARMUP_GRACE_PERIOD:-1800}".
  3. AGENTIC_WARMUP_GRACE_PERIOD was never exported by this script, so bash substitutes the default 1800, regardless of CONC.
  4. AIPERF_BENCHMARK_GRACE_PERIOD is simply dead — no code path in benchmark_lib.sh or elsewhere reads it (confirmed by grep against all AIPERF_* handling, which processes AIPERF_WARMUP_REQUESTS_PER_LANE, AIPERF_TRACE_IDLE_GAP_CAP_SECONDS, AIPERF_FAILED_REQUEST_THRESHOLD, etc., but never this name).
  5. Net effect: at conc 32 and 48, the replay runs with a 30-minute warmup grace period instead of the intended 60-minute one — exactly the saturation-drain scenario the sibling SGLang recipe's comment identifies as needing the longer window.

Fix: replace the dead export AIPERF_BENCHMARK_GRACE_PERIOD=30 line with the same conditional the sibling script uses:

if [ "$CONC" -ge 32 ]; then
    export AGENTIC_WARMUP_GRACE_PERIOD=3600
fi

placed after CONC is available (it's already required via check_env_vars), or at minimum export AGENTIC_WARMUP_GRACE_PERIOD=3600 unconditionally if simplicity is preferred over the changelog's stated conc-1-16-stays-at-1800 nuance.


# Require ATOM Prometheus metrics in every official result.
export AIPERF_SERVER_METRICS_URLS="http://localhost:${PORT}/metrics"
export AIPERF_REQUIRED_SERVER_METRIC_PREFIX="atom:"

wait_for_amd_gpu_clean

SERVER_LOG="$RESULT_DIR/server.log"
mkdir -p "$RESULT_DIR"

SERVER_PID=""
cleanup_atom_server() {
local exit_code=$?
trap - EXIT INT TERM
set +e
stop_background_process_tree "$SERVER_PID" "ATOM server" 60
exit "$exit_code"
}
trap cleanup_atom_server EXIT
trap 'exit 130' INT
trap 'exit 143' TERM

# AgentX concurrency counts session trees. Keep 2x scheduler headroom for the
# request bursts produced by subagent fan-out.
MAX_NUM_SEQS=$((2 * CONC))

# golden_al_distribution/dsv4_mtp.yaml: thinking_on, 3 draft tokens -> AL 2.49
# --spec-decode-acceptance-length 2.49.
# https://github.com/ROCm/ATOM/pull/1948
NUM_SPEC_TOKENS=3
SPEC_DECODE_AL=2.49
SPEC_ARGS=(
--method mtp
--num-speculative-tokens "$NUM_SPEC_TOKENS"
)
if [ "${EVAL_ONLY:-false}" != "true" ]; then
SPEC_ARGS+=(--spec-decode-acceptance-length "$SPEC_DECODE_AL")
fi

echo "Starting ATOM server with MAX_NUM_SEQS=$MAX_NUM_SEQS NUM_SPEC_TOKENS=$NUM_SPEC_TOKENS SPEC_DECODE_AL=$SPEC_DECODE_AL EVAL_ONLY=${EVAL_ONLY:-false}"
ATOM_CMD=(
python3 -u -m atom.entrypoints.openai_server
--model "$MODEL_PATH"
--served-model-name "$MODEL"
--host 0.0.0.0
--server-port "$PORT"
--tensor-parallel-size "$TP"
--kv-cache-dtype fp8
--index-cache-dtype fp4
--enable-prefix-caching
--gpu-memory-utilization 0.9
--max-num-batched-tokens 16384
--attn-prefill-chunk-size 16384
--state-checkpoint-interval-tokens 8192
--level 3
--cudagraph-mode FULL
"${SPEC_ARGS[@]}"
--max-num-seqs "$MAX_NUM_SEQS"
)
write_command "$RESULT_DIR/server_command.txt" "${ATOM_CMD[@]}"
"${ATOM_CMD[@]}" > "$SERVER_LOG" 2>&1 &
SERVER_PID=$!
echo "Server PID: $SERVER_PID"

wait_for_server_ready --port "$PORT" --server-log "$SERVER_LOG" --server-pid "$SERVER_PID"

if [ "${EVAL_ONLY:-false}" = "true" ]; then
run_eval --port "$PORT"
else
# AgentX DSv4 traces already carry fully formed chat payloads; do not apply
# AIPerf's generic chat template on top of them.
build_replay_cmd "$RESULT_DIR"
run_agentic_replay_and_write_outputs "$RESULT_DIR"
fi
16 changes: 16 additions & 0 deletions configs/amd-master.yaml
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Expand Up @@ -1284,6 +1284,22 @@ dsv4-fp4-mi355x-vllm-agentic-mtp:
# while MTP creates two. Restore these points after the upstream hybrid
# KV recovery fix lands: https://github.com/vllm-project/vllm/pull/45497

# DeepSeek-V4-Pro FP4 AgentX on one MI355X node using ATOM MTP. Throughput
# uses the thinking_on golden AL 2.49 for three draft tokens; eval uses real
# MTP acceptance. max-num-seqs is set to 2x concurrency by the recipe.
dsv4-fp4-mi355x-atom-agentic-mtp:
image: rocm/atom-dev:nightly_202608201032
model: deepseek-ai/DeepSeek-V4-Pro
model-prefix: dsv4
runner: cluster:mi355x-amds
precision: fp4
framework: atom
multinode: false
scenarios:
agentic-coding:
- search-space:
- { tp: 8, ep: 1, dp-attn: false, kv-offloading: none, spec-decoding: mtp, conc-list: [1, 2, 4, 8, 16, 32, 48] }

dsr1-fp4-mi355x-sglang-disagg-mtp:
image: lmsysorg/sglang-rocm:v0.5.12-rocm720-mi35x-20260519
model: amd/DeepSeek-R1-0528-MXFP4-v2
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12 changes: 12 additions & 0 deletions perf-changelog.yaml
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Expand Up @@ -6196,6 +6196,18 @@
- "Set max-num-seqs to twice the concurrency, select CUDA graph capture sizes by concurrency, and cap max-num-batched-tokens at 16384."
pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/2576

- config-keys:
- dsv4-fp4-mi355x-atom-agentic-mtp
scenario-type:
- agentic-coding
description:
- "Add DeepSeek-V4-Pro FP4 ATOM MTP AgentX on one 8x MI355X node at concurrency 1, 2, 4, 8, 16, 32, and 48, with no KV offload and max-num-seqs set to twice concurrency."
- "Use rocm/atom-dev:nightly_202608201032, FP8 KV/index caches, prefix caching, 32K state checkpoints, 16K batching/prefill chunks, and FULL cudagraph mode."
- "Use three-token MTP with the committed DeepSeek-V4 thinking-mode golden AL 2.49 (synthetic acceptance length 3) for throughput, while eval-only runs measure real MTP acceptance."
- "Increase the AgentX warmup grace period from the 1800-second default to 3600 seconds at concurrency 32 and 48, matching the DeepSeek-V4-Pro SGLang saturation recipe so in-flight warmup requests can drain and reused long prefixes are fully primed before profiling."
- "Keep concurrency 1 through 16 at the default 1800 seconds; the profiling duration remains 3600 seconds for every concurrency arm."
pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/2698

- config-keys:
Comment on lines +6199 to 6211

@claude claude Bot Aug 20, 2026

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🔴 AGENTS.md requires perf-changelog.yaml to be append-only, with new entries appended only at the tail — this entry (dsv4-fp4-mi355x-atom-agentic-mtp, lines 6199-6210) is instead inserted mid-file, immediately before the pre-existing #2672 entry, even though five newer entries (#2672, #2642, #2660, #2639, #2677, #2686) already exist past that point on main. This will fail utils/validate_perf_changelog.py's validate_raw_change(), which requires the new file to start with the old file's exact bytes before the appended suffix. Fix by moving this 12-line block to the true tail of the file (after the #2686 entry at line 6265).

Extended reasoning...

What the bug is. perf-changelog.yaml is explicitly documented in AGENTS.md (line 21, under "Non-negotiable benchmark invariants") as append-only and byte-sensitive: "Preserve all existing bytes and separator whitespace, and append only at the tail." This PR's new dsv4-fp4-mi355x-atom-agentic-mtp entry is inserted at lines 6199-6210, directly after the existing glm5.2-fp4-mi355x-atom-agentic-mtp / #2576 entry — but that is not the tail of the file. The file is 6265 lines long, and the pre-existing kimik3-fp4-b200-dynamo-vllm-agentic-dspark (#2672) entry immediately follows the new insertion, with several more entries after it (#2642, #2660, #2639, #2677, #2686) all the way to the real tail.

Root cause. Per the PR description, this PR "internalizes fork PR #2668 ... Applied as the PR's net diff (origin/main...pr-2668) on top of latest main." When #2668 was originally authored, the entry after #2576 genuinely was the tail of the changelog. But main has since grown past that point (entries for #2672, #2642, #2660, #2639, #2677, #2686 were all appended in the interim). Replaying #2668's diff hunk verbatim (@@ -6196,6 +6196,18 @@) reproduces the same insertion point instead of re-targeting the current EOF, landing the new entry mid-file.

Why nothing else catches this. The YAML itself still parses fine (list order doesn't affect config-keys lookups), so there's no functional regression a benchmark run would surface. But this repo has a dedicated enforcement mechanism: utils/validate_perf_changelog.py's validate_raw_change() (line 211) requires head_raw.startswith(base_raw) — i.e. the new file's bytes must extend the old file's bytes verbatim, with new content only as a trailing suffix starting with - config-keys:. Because this PR's base (pre-#2668-replay) already contained the #2672...#2686 entries after the insertion point, the new file's bytes diverge from the base before EOF, so head_raw.startswith(base_raw) is false and the validator raises "appended entries changed historical perf-changelog.yaml bytes; restore the base file byte-for-byte and append at the end."

Step-by-step proof:

  1. Current main (base) has, in order: ...#2576 entry (ends ~line 6202) -> #2672 entry -> #2642 -> #2660 -> #2639 -> #2677 -> #2686 entry (EOF at line 6247, pre-PR length).
  2. This PR's diff hunk @@ -6196,6 +6196,18 @@ inserts the new 12-line dsv4-fp4-mi355x-atom-agentic-mtp block right after the #2576 entry, i.e. before the #2672 entry.
  3. Resulting head file: ...#2576 -> new dsv4 entry -> #2672 -> #2642 -> ... -> #2686 (now 6265 lines total).
  4. validate_raw_change computes head_raw.startswith(base_raw). Since base_raw's byte sequence continues #2576 -> #2672 -> ... directly (no gap), but head_raw has the new block spliced in between, the two diverge at that splice point — well before either file's end. The check fails and raises the ChangelogValidationError.
  5. Confirmed by direct inspection: wc -l perf-changelog.yaml = 6265; the new entry occupies lines 6199-6210, immediately followed by the #2672 kimik3-fp4-b200-dynamo-vllm-agentic-dspark entry at line 6212, with #2642/#2660/#2639/#2677/#2686 entries following through to line 6265.

The fix is trivial: cut the 12-line dsv4-fp4-mi355x-atom-agentic-mtp block (lines 6199-6210) and paste it at the true current tail, after the #2686 minimaxm3-fp4-b200-trtllm-agentic-mtp entry (end of file, line 6265), preserving all other bytes untouched. No refutations were raised against this finding by other verifiers.

- kimik3-fp4-b200-dynamo-vllm-agentic-dspark
scenario-type:
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