fix(dsxe): exclude degraded B300 nodes

从 B300 AgentX 配方中排除性能异常节点，并迁移到自动合成验收长度选择。

Author: nvpohanh

benchmarks/multi_node/srt-slurm-recipes/dsv4/sglang/b300-fp4/agentx/agg-tp4-c4-mtp.yaml

@@ -104,6 +104,7 @@ roles:
 sbatch_directives:
   mem: "0"
   cpus-per-task: "192"
+  exclude: "dsxe-sa-b300-prd0-gpu-00,dsxe-sa-b300-prd0-gpu-04,dsxe-sa-b300-prd0-gpu-16"
 
 srun_options:
   mem: "0"

benchmarks/multi_node/srt-slurm-recipes/dsv4/sglang/b300-fp4/agentx/agg-tp4-c8-mtp.yaml

@@ -104,6 +104,7 @@ roles:
 sbatch_directives:
   mem: "0"
   cpus-per-task: "192"
+  exclude: "dsxe-sa-b300-prd0-gpu-00,dsxe-sa-b300-prd0-gpu-04,dsxe-sa-b300-prd0-gpu-16"
 
 srun_options:
   mem: "0"

benchmarks/multi_node/srt-slurm-recipes/dsv4/sglang/b300-fp4/agentx/agg-tp8-c1-mtp.yaml

@@ -104,6 +104,7 @@ roles:
 sbatch_directives:
   mem: "0"
   cpus-per-task: "192"
+  exclude: "dsxe-sa-b300-prd0-gpu-00,dsxe-sa-b300-prd0-gpu-04,dsxe-sa-b300-prd0-gpu-16"
 
 srun_options:
   mem: "0"

benchmarks/multi_node/srt-slurm-recipes/dsv4/sglang/b300-fp4/agentx/disagg-1p1d-dep8-dep8-c240-mtp-kvoffload.yaml

@@ -226,6 +226,7 @@ roles:
 sbatch_directives:
   mem: "0"
   cpus-per-task: "192"
+  exclude: "dsxe-sa-b300-prd0-gpu-00,dsxe-sa-b300-prd0-gpu-04,dsxe-sa-b300-prd0-gpu-16"
 
 srun_options:
   mem: "0"

benchmarks/multi_node/srt-slurm-recipes/dsv4/sglang/b300-fp4/agentx/disagg-2p1d-dep8-dep8-c480-mtp-kvoffload.yaml

@@ -228,6 +228,7 @@ roles:
 sbatch_directives:
   mem: "0"
   cpus-per-task: "192"
+  exclude: "dsxe-sa-b300-prd0-gpu-00,dsxe-sa-b300-prd0-gpu-04,dsxe-sa-b300-prd0-gpu-16"
 
 srun_options:
   mem: "0"

configs/nvidia-master.yaml

@@ -6437,8 +6437,6 @@ dsv4-fp4-b300-dynamo-sglang-agentic-agg:
           ep: 1
           dp-attn: false
           additional-settings:
-          - "SYNTHETIC_ACCEPTANCE=true"
-          - "SYNTHETIC_ACCEPTANCE_LENGTH=3.77"
           - "CONFIG_FILE=recipes/dsv4/sglang/b300-fp4/agentx/agg-tp8-c1-mtp.yaml"
       - spec-decoding: draft_model
         conc-list: [4]
@@ -6449,8 +6447,6 @@ dsv4-fp4-b300-dynamo-sglang-agentic-agg:
           ep: 1
           dp-attn: false
           additional-settings:
-          - "SYNTHETIC_ACCEPTANCE=true"
-          - "SYNTHETIC_ACCEPTANCE_LENGTH=3.77"
           - "CONFIG_FILE=recipes/dsv4/sglang/b300-fp4/agentx/agg-tp4-c4-mtp.yaml"
       - spec-decoding: draft_model
         conc-list: [8]
@@ -6461,8 +6457,6 @@ dsv4-fp4-b300-dynamo-sglang-agentic-agg:
           ep: 1
           dp-attn: false
           additional-settings:
-          - "SYNTHETIC_ACCEPTANCE=true"
-          - "SYNTHETIC_ACCEPTANCE_LENGTH=3.77"
           - "CONFIG_FILE=recipes/dsv4/sglang/b300-fp4/agentx/agg-tp4-c8-mtp.yaml"
 dsv4-fp4-b300-dynamo-sglang-agentic-disagg:
   image: lmsysorg/sglang:nightly-dev-20260916-c9a8fba9
@@ -6489,8 +6483,6 @@ dsv4-fp4-b300-dynamo-sglang-agentic-disagg:
           ep: 8
           dp-attn: true
           additional-settings:
-          - "SYNTHETIC_ACCEPTANCE=true"
-          - "SYNTHETIC_ACCEPTANCE_LENGTH=3.77"
           - "CONFIG_FILE=recipes/dsv4/sglang/b300-fp4/agentx/disagg-1p1d-dep8-dep8-c240-mtp-kvoffload.yaml"
         decode:
           num-worker: 1
@@ -6507,8 +6499,6 @@ dsv4-fp4-b300-dynamo-sglang-agentic-disagg:
           ep: 8
           dp-attn: true
           additional-settings:
-          - "SYNTHETIC_ACCEPTANCE=true"
-          - "SYNTHETIC_ACCEPTANCE_LENGTH=3.77"
           - "CONFIG_FILE=recipes/dsv4/sglang/b300-fp4/agentx/disagg-2p1d-dep8-dep8-c480-mtp-kvoffload.yaml"
         decode:
           num-worker: 1

perf-changelog.yaml

@@ -8607,3 +8607,13 @@
     - "为 DSXE 多节点任务挂载持久化的 AgentX 数据集 mmap 缓存与 Hugging Face 缓存。"
     - "将 DSXE DSV4 Dynamo+SGLang AgentX 的作业时限提高到八小时，使低并发轨迹能够完成。"
   pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/3190
+
+- config-keys:
+    - dsv4-fp4-b300-dynamo-sglang-agentic-agg
+    - dsv4-fp4-b300-dynamo-sglang-agentic-disagg
+  scenario-type:
+    - agentic-coding
+  description:
+    - "Exclude the two B300 DSXE nodes that produced degraded low-concurrency results from all five recipes while their health is investigated."
+    - "在节点健康状况调查期间，从全部五个配方中排除两个在低并发测试中性能异常的 B300 DSXE 节点。"
+  pr-link: https://github.com/SemiAnalysisAI/InferenceX/pull/3190