#1649 fix Milvus crash on old cpu (#1652)

* #1649 fix Milvus crash on old cpu
Signed-off-by: Nyudong.cai <yudong.cai@zilliz.com>

* #1649 update debug log
Signed-off-by: Nyudong.cai <yudong.cai@zilliz.com>

* retry CI
Signed-off-by: Nyudong.cai <yudong.cai@zilliz.com>

CHANGELOG.md

@@ -17,6 +17,7 @@ Please mark all change in change log and use the issue from GitHub
 -   \#1546 Move Config.cpp to config directory
 -   \#1547 Rename storage/file to storage/disk and rename classes
 -   \#1548 Move store/Directory to storage/Operation and add FSHandler
+-   \#1649 Fix Milvus crash on old CPU 
 
 ## Task
 

core/src/index/thirdparty/faiss/FaissHook.cpp

@@ -48,7 +48,7 @@ bool support_sse() {
     return (instruction_set_inst.SSE());
 }
 
-std::string hook_init() {
+bool hook_init(std::string& cpu_flag) {
     static std::mutex hook_mutex;
     std::lock_guard<std::mutex> lock(hook_mutex);
 
@@ -64,8 +64,7 @@ std::string hook_init() {
         sq_get_distance_computer_IP = sq_get_distance_computer_IP_avx512;
         sq_sel_quantizer = sq_select_quantizer_avx512;
 
-        std::cout << "FAISS hook AVX512" << std::endl;
-        return "AVX512";
+        cpu_flag = "AVX512";
     } else if (support_avx()) {
         /* for IVFFLAT */
         fvec_inner_product = fvec_inner_product_avx;
@@ -78,8 +77,7 @@ std::string hook_init() {
         sq_get_distance_computer_IP = sq_get_distance_computer_IP_avx;
         sq_sel_quantizer = sq_select_quantizer_avx;
 
-        std::cout << "FAISS hook AVX" << std::endl;
-        return "AVX";
+        cpu_flag = "AVX";
     } else if (support_sse()) {
         /* for IVFFLAT */
         fvec_inner_product = fvec_inner_product_sse;
@@ -92,12 +90,13 @@ std::string hook_init() {
         sq_get_distance_computer_IP = sq_get_distance_computer_IP_sse;
         sq_sel_quantizer = sq_select_quantizer_sse;
 
-        std::cout << "FAISS hook SSE" << std::endl;
-        return "SSE";
+        cpu_flag = "SSE";
     } else {
-        FAISS_ASSERT_MSG(false, "CPU not supported!");
-        return "UNSUPPORTED";
+        cpu_flag = "UNSUPPORTED";
+        return false;
     }
+
+    return true;
 }
 
 } // namespace faiss

core/src/index/thirdparty/faiss/FaissHook.h

@@ -29,6 +29,6 @@ extern sq_sel_func_ptr sq_sel_quantizer;
 
 extern bool support_avx512();
 
-extern std::string hook_init();
+extern bool hook_init(std::string& cpu_flag);
 
 } // namespace faiss

core/src/wrapper/KnowhereResource.cpp

@@ -17,6 +17,7 @@
 #include "config/Config.h"
 #include "faiss/FaissHook.h"
 #include "scheduler/Utils.h"
+#include "utils/Error.h"
 #include "utils/Log.h"
 
 #include <fiu-local.h>
@@ -37,8 +38,12 @@ KnowhereResource::Initialize() {
     bool use_avx512 = true;
     CONFIG_CHECK(config.GetEngineConfigUseAVX512(use_avx512));
     faiss::faiss_use_avx512 = use_avx512;
-    std::string type = faiss::hook_init();
-    ENGINE_LOG_DEBUG << "FAISS hook " << type;
+    std::string cpu_flag;
+    if (faiss::hook_init(cpu_flag)) {
+        ENGINE_LOG_DEBUG << "FAISS hook " << cpu_flag;
+    } else {
+        return Status(KNOWHERE_UNEXPECTED_ERROR, "FAISS hook fail, CPU not supported!");
+    }
 
 #ifdef MILVUS_GPU_VERSION
     bool enable_gpu = false;