feat: log errors from cudaGetDeviceCount (PROOF-924) (#209)

log errors from cudaGetDeviceCount

sxt/base/device/BUILD

@@ -101,6 +101,7 @@ sxt_cc_component(
     name = "property",
     impl_deps = [
         "//sxt/base/error:panic",
+        "//sxt/base/log:log",
     ],
     test_deps = [
         "//sxt/base/test:unit_test",

sxt/base/device/property.cc

@@ -20,16 +20,18 @@
 #include <cuda_runtime.h>
 
 #include "sxt/base/error/panic.h"
+#include "sxt/base/log/log.h"
 
 namespace sxt::basdv {
 //--------------------------------------------------------------------------------------------------
 // get_num_devices
 //--------------------------------------------------------------------------------------------------
 unsigned get_num_devices() noexcept {
-  static int num_devices = []() noexcept {
+  static unsigned num_devices = []() noexcept {
     int res;
     auto rcode = cudaGetDeviceCount(&res);
     if (rcode != cudaSuccess) {
+      basl::error("cudaGetDeviceCount failed: {}", cudaGetErrorString(rcode));
       return 0u;
     }
     return static_cast<unsigned>(res);

sxt/base/log/log.h

@@ -30,4 +30,13 @@ inline void info(std::string_view s) noexcept { info_impl(s); }
 template <class... Args> void info(std::format_string<Args...> fmt, Args&&... args) noexcept {
   info_impl(std::format(fmt, std::forward<Args>(args)...));
 }
+
+//--------------------------------------------------------------------------------------------------
+// error
+//--------------------------------------------------------------------------------------------------
+inline void error(std::string_view s) noexcept { error_impl(s); }
+
+template <class... Args> void error(std::format_string<Args...> fmt, Args&&... args) noexcept {
+  error_impl(std::format(fmt, std::forward<Args>(args)...));
+}
 } // namespace sxt::basl

sxt/base/log/log_impl.cc

@@ -27,4 +27,12 @@ void info_impl(std::string_view s) noexcept {
   setup_logger();
   spdlog::info(s);
 }
+
+//--------------------------------------------------------------------------------------------------
+// error_impl
+//--------------------------------------------------------------------------------------------------
+void error_impl(std::string_view s) noexcept {
+  setup_logger();
+  spdlog::error(s);
+}
 } // namespace sxt::basl

sxt/base/log/log_impl.h

@@ -23,4 +23,9 @@ namespace sxt::basl {
 // info_impl
 //--------------------------------------------------------------------------------------------------
 void info_impl(std::string_view s) noexcept;
+
+//--------------------------------------------------------------------------------------------------
+// error_impl
+//--------------------------------------------------------------------------------------------------
+void error_impl(std::string_view s) noexcept;
 } // namespace sxt::basl