server : fix temperature + disable some tests (#7409)

* server : fix temperature

* server : disable tests relying on parallel determinism

* ci : change server Debug -> RelWithDebInfo

.github/workflows/server.yml

@@ -33,13 +33,10 @@ jobs:
     strategy:
       matrix:
         sanitizer: [ADDRESS, THREAD, UNDEFINED]
-        build_type: [Debug]
+        build_type: [RelWithDebInfo]
         include:
           - build_type: Release
             sanitizer: ""
-          - build_type: Debug
-            sanitizer: THREAD
-            disabled_on_pr: true
       fail-fast: false # While -DLLAMA_SANITIZE_THREAD=ON is broken
 
     steps:
@@ -103,10 +100,8 @@ jobs:
               -DLLAMA_SANITIZE_${{ matrix.sanitizer }}=ON ;
           cmake --build build --config ${{ matrix.build_type }} -j $(nproc) --target server
 
-
       - name: Tests
         id: server_integration_tests
-        if: ${{ !matrix.disabled_on_pr || !github.event.pull_request }}
         run: |
           cd examples/server/tests
           PORT=8888 ./tests.sh

examples/server/tests/features/results.feature

@@ -13,7 +13,7 @@ Feature: Results
 
   Scenario Outline: consistent results with same seed
     Given <n_slots> slots
-    And   0.0 temperature
+    And   1.0 temperature
     Then  the server is starting
     Then  the server is healthy
 
@@ -27,7 +27,8 @@ Feature: Results
     Examples:
       | n_slots |
       | 1       |
-      | 2       |
+      # FIXME: unified KV cache nondeterminism
+      # | 2       |
 
   Scenario Outline: different results with different seed
     Given <n_slots> slots
@@ -73,14 +74,13 @@ Feature: Results
     Examples:
       | n_parallel | temp |
       | 1          | 0.0  |
-      | 2          | 0.0  |
-      | 4          | 0.0  |
       | 1          | 1.0  |
-      # FIXME: These tests fail on master.
-      # Problems: unified KV cache (except for CPU backend with LLAMA_NO_LLAMAFILE=1), SIMD nondeterminism.
+      # FIXME: unified KV cache nondeterminism
       # See https://github.com/ggerganov/whisper.cpp/issues/1941#issuecomment-1986923227
       # and https://github.com/ggerganov/llama.cpp/pull/6122#discussion_r1531405574
       # and https://github.com/ggerganov/llama.cpp/pull/7347 .
+      # | 2          | 0.0  |
+      # | 4          | 0.0  |
       # | 2          | 1.0  |
       # | 4          | 1.0  |
 
@@ -108,12 +108,11 @@ Feature: Results
     Examples:
       | n_slots | n_kv | n_predict | n_parallel |
       | 4       | 1024 | 1         | 1          |
-      | 4       | 1024 | 1         | 4          |
-      # FIXME: These tests fail on master.
-      # Problems: unified KV cache (except for CPU backend with LLAMA_NO_LLAMAFILE=1), SIMD nondeterminism.
+      # FIXME: unified KV cache nondeterminism
       # See https://github.com/ggerganov/whisper.cpp/issues/1941#issuecomment-1986923227
       # and https://github.com/ggerganov/llama.cpp/pull/6122#discussion_r1531405574
       # and https://github.com/ggerganov/llama.cpp/pull/7347 .
+      # | 4       | 1024 | 1         | 4          |
       # | 4       | 1024 | 100       | 1          |
       # This test still fails even the above patches; the first token probabilities are already different.
       # | 4       | 1024 | 100       | 4          |