set dp attention env vars

Author: Jatin Gangani

benchmarks/gptoss_fp4_b200_trt_slurm.sh

@@ -31,9 +31,6 @@ echo "MOE_BACKEND set to '$MOE_BACKEND'"
 
 EXTRA_CONFIG_FILE="gptoss-fp4.yml"
 export TRTLLM_ENABLE_PDL=1
-export TRTLLM_MOE_ALLTOALL_BACKEND="mnnvlthroughput"
-export TRTLLM_FORCE_ALLTOALL_METHOD="MNNVL"
-export TRTLLM_MOE_A2A_WORKSPACE_MB="2048"
 
 cat > $EXTRA_CONFIG_FILE << EOF
 cuda_graph_config:
@@ -52,6 +49,9 @@ moe_config:
 EOF
 
 if [[ "$DP_ATTENTION" == "true" ]]; then
+    export TRTLLM_MOE_ALLTOALL_BACKEND="mnnvlthroughput"
+    export TRTLLM_FORCE_ALLTOALL_METHOD="MNNVL"
+    export TRTLLM_MOE_A2A_WORKSPACE_MB="2048"
     cat << EOF >> $EXTRA_CONFIG_FILE
 attention_dp_config:
     enable_balance: true