large: ubatch 4096 (match v3), add --no-mmap; sync bench harness prod config

scripts/serve-frank-large.sh

@@ -12,11 +12,13 @@
 # See docs/kairic-edge.md for the build runbook and binary identity.
 #
 # This script replicates the release pinned runner
-# (ROCmFPX-kairic/scripts/run-kairic-edge-gfx1151.sh) verbatim. The only
-# deliberate differences: --host/--port come from BIND_ADDR/LISTEN_PORT
-# (safe names; the ROCm HIP runtime reads a bare HOST env var, see the
-# 2026-08-13 TEMP incident) and LD_LIBRARY_PATH uses this machine's split
-# 7.15 SDK layout.
+# (ROCmFPX-kairic/scripts/run-kairic-edge-gfx1151.sh). The deliberate
+# differences: --host/--port come from BIND_ADDR/LISTEN_PORT (safe names;
+# the ROCm HIP runtime reads a bare HOST env var, see the 2026-08-13 TEMP
+# incident), LD_LIBRARY_PATH uses this machine's split 7.15 SDK layout,
+# the profile runs --no-mmap, batch 4096 / ubatch 4096, reasoning on with
+# deepseek format and preserve_thinking, and the target greedy argmax fast
+# path is disabled for non-greedy chat sampling.
 #
 # Tunables come from frank-default-large.env in this directory unless
 # FRANK_LARGE_ENV_FILE overrides that path.
@@ -48,7 +50,7 @@ fi
 : "${CTX_SIZE:=262144}"
 : "${PARALLEL:=1}"
 : "${BATCH_SIZE:=4096}"
-: "${UBATCH_SIZE:=2048}"
+: "${UBATCH_SIZE:=4096}"
 : "${TARGET_THREADS:=16}"
 : "${BATCH_THREADS:=32}"
 : "${CACHE_TYPE_K:=f16}"
@@ -126,7 +128,9 @@ export PROMPTFORGE_OUTPUT_K8_STRICT_GREEDY=0
 # 4, deterministic sampler). Local overrides for production chat:
 #   - reasoning on + deepseek format (thinking goes to message.reasoning_content,
 #     matching the retired v3 service so the fleet's reasoning clients work)
-#   - batch 4096 / ubatch 2048 (larger than the runner's 2048/512)
+#   - batch 4096 / ubatch 4096 (larger than the runner's 2048/512; matches v3)
+#   - --no-mmap (local choice; benchmarks show no perf difference versus
+#     mmap, kept per operator preference)
 #   - chat_template_kwargs preserve_thinking=true (preserve thinking tokens
 #     in the conversation history across turns)
 # Sampling is overridden per request by clients; the card recommends Qwen
@@ -152,6 +156,7 @@ exec "$LLAMA_BIN" \
     --cache-ram "$CACHE_RAM" \
     --cache-prompt \
     --cache-idle-slots \
+    --no-mmap \
     --metrics \
     --kairic-edge \
     --spec-type draft-mtp \