common: verbose: add a warn verbose mode to print warnings

src/common/logging.cpp

@@ -93,7 +93,7 @@ void log_manager_t::log(const char *msg, log_level_t log_level) const {
 void log_manager_t::set_log_level(const std::string &vmode_str) const {
     // The logging level is determined from the verbose mode
     // with the following order of decreasing priority:
-    // [trace, debug, info, error, critical, off]
+    // [trace, debug, info, warn, error, critical, off]
     spdlog::set_level(spdlog::level::off);
 
     if (vmode_str == "-1" || vmode_str == "all") {
@@ -104,6 +104,8 @@ void log_manager_t::set_log_level(const std::string &vmode_str) const {
             || vmode_str.find("profile") != std::string::npos
             || vmode_str.find("dispatch") != std::string::npos) {
         spdlog::set_level(spdlog::level::info);
+    } else if (vmode_str.find("warn") != std::string::npos) {
+        spdlog::set_level(spdlog::level::warn);
     } else if (vmode_str.find("check") != std::string::npos) {
         spdlog::set_level(spdlog::level::err);
     } else if (vmode_str.find("error") != std::string::npos) {

src/common/stack_checker.hpp

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright 2021-2023 Intel Corporation
+ * Copyright 2021-2024 Intel Corporation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -204,7 +204,7 @@ struct stack_checker_t {
             size_t soft_stack_limit_in_bytes
                     = get_soft_stack_limit() * get_page_size();
             if (stack_consumption > soft_stack_limit_in_bytes) {
-                VERROR(common, stack_checker,
+                VWARN(common, stack_checker,
                         "'%s' consumed %lu bytes of "
                         "stack while the limit is %lu bytes",
                         context_.c_str(), stack_consumption,

src/common/verbose.cpp

@@ -195,6 +195,7 @@ uint32_t get_verbose(verbose_t::flag_kind verbosity_kind,
             if (s == "profile_exec") k |= verbose_t::exec_profile;
             // Enable profiling to external libraries
             if (s == "profile_externals") k |= verbose_t::profile_externals;
+            if (s == "warn") k |= verbose_t::warn;
             // we extract debug info debuginfo=XX. ignore if debuginfo is invalid.
             if (s.rfind("debuginfo=", 0) == 0)
                 k |= verbose_t::make_debuginfo(
@@ -1816,10 +1817,12 @@ dnnl_status_t dnnl_set_verbose(int level) {
     if (level < 0 || level > 2) return invalid_arguments;
 
     uint32_t verbose_level = verbose_t::none;
-    if (level == 1) verbose_level = verbose_t::error | verbose_t::exec_profile;
+    if (level == 1)
+        verbose_level
+                = verbose_t::error | verbose_t::exec_profile | verbose_t::warn;
     if (level == 2)
         verbose_level = verbose_t::error | verbose_t::exec_profile
-                | verbose_t::create_profile;
+                | verbose_t::create_profile | verbose_t::warn;
     // we put the lower byte of level as devinfo to preserve backward
     // compatibility with historical VERBOSE={1,2}
     if (level == 1 || level == 2) verbose_level |= (level << 24);

src/common/verbose.hpp

@@ -118,7 +118,21 @@ struct const_expr_value {
     do { \
         if (dnnl::impl::get_verbose(verbose_t::error)) { \
             VFORMAT(get_msec(), verbose_t::error, apitype, error, "", \
-                    #component "," msg, ##__VA_ARGS__); \
+                    #component "," msg ",%s:%d", ##__VA_ARGS__, __FILENAME__, \
+                    __LINE__); \
+        } \
+    } while (0)
+
+// Special syntactic sugar for warnings, plus flush of the output stream
+// The difference between the warn and error verbose modes is that the
+// verbose error messages are only reserved for printing when an exception is
+// thrown or when a status check fails.
+#define VWARN(apitype, component, msg, ...) \
+    do { \
+        if (dnnl::impl::get_verbose(verbose_t::warn)) { \
+            VFORMAT(get_msec(), verbose_t::warn, apitype, warn, "", \
+                    #component "," msg ",%s:%d", ##__VA_ARGS__, __FILENAME__, \
+                    __LINE__); \
         } \
     } while (0)
 
@@ -157,6 +171,7 @@ struct verbose_t {
         exec_check = 1 << 6,
         exec_profile = 1 << 7,
         profile_externals = 1 << 8,
+        warn = 1 << 9,
         // the upper 8 bits are reserved for devinfo levels
         debuginfo = 1 << 24,
         //
@@ -246,6 +261,7 @@ get_verbose_to_log_level_map() {
                     {verbose_t::exec_profile, log_manager_t::info},
                     {verbose_t::exec_check, log_manager_t::error},
                     {verbose_t::error, log_manager_t::critical},
+                    {verbose_t::warn, log_manager_t::warn},
                     {verbose_t::none, log_manager_t::off},
             };
     return verbose_to_log_map;

src/common/verbose_msg.hpp

@@ -26,6 +26,7 @@
 
 // log type strings
 #define VERBOSE_error "error"
+#define VERBOSE_warn "warning"
 #define VERBOSE_create "create"
 #define VERBOSE_create_nested "create_nested"
 #define VERBOSE_exec "exec"
@@ -119,7 +120,7 @@
 #define VERBOSE_IMPL_HEURISTIC_FAIL "heuristic fail: %s"
 #define VERBOSE_1x1CONV_HEURISTIC_FAIL "heuristic fail for 1x1 convolution: %s"
 #define VERBOSE_SCRATCHPAD_LIMIT "scratchpad memory limit exceeded"
-#define VERBOSE_PRIMITIVE_CREATION_FAIL "failed to create nested primitive %s"
+#define VERBOSE_PRIMITIVE_CREATION_FAIL "failed to create nested %s primitive"
 #define VERBOSE_DESC_CREATION_FAIL "failed to create %s descriptor"
 #define VERBOSE_SHAPE_RESTRICTION "failed shape restrictions"
 #define VERBOSE_INCOMPATIBLE_GEMM_FMT "incompatible gemm format"

src/cpu/jit_utils/jit_utils.cpp

@@ -1,5 +1,5 @@
 /*******************************************************************************
-* Copyright 2019-2023 Intel Corporation
+* Copyright 2019-2024 Intel Corporation
 * Copyright 2021 FUJITSU LIMITED
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
@@ -97,7 +97,7 @@ void register_jit_code_vtune(const void *code, size_t code_size,
     }
 #else
     if (flags & DNNL_JIT_PROFILE_VTUNE)
-        VERROR(primitive, jit_profiling,
+        VWARN(primitive, jit_profiling,
                 "VTune Profiler integration is not supported");
 #endif
 #else

src/cpu/jit_utils/linux_perf/linux_perf.cpp

@@ -1,5 +1,5 @@
 /*******************************************************************************
-* Copyright 2019-2023 Intel Corporation
+* Copyright 2019-2024 Intel Corporation
 * Copyright 2021 FUJITSU LIMITED
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
@@ -195,7 +195,7 @@ class linux_perf_jitdump_t {
         }
 #else
         if (use_tsc) {
-            VERROR(primitive, linux_perf,
+            VWARN(primitive, linux_perf,
                     "TSC timestamps is not supported. clock_gettime() is used "
                     "instead.");
         }