From 6796c9244aed343976fa7cb9b08e24896a6301a6 Mon Sep 17 00:00:00 2001
From: mehmet yusufoglu <mehmetyusufoglu01@gmail.com>
Date: Mon, 7 Oct 2024 18:38:39 +0200
Subject: [PATCH] Prints acc tags at runtime

---
 example/heatEquation2D/src/heatEquation2D.cpp |  2 ++
 include/alpaka/acc/Tag.hpp                    | 18 ++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/example/heatEquation2D/src/heatEquation2D.cpp b/example/heatEquation2D/src/heatEquation2D.cpp
index b186e9ec6dba..a90aa47fcc17 100644
--- a/example/heatEquation2D/src/heatEquation2D.cpp
+++ b/example/heatEquation2D/src/heatEquation2D.cpp
@@ -215,5 +215,7 @@ auto main() -> int
     //   TagCpuSerial, TagGpuHipRt, TagGpuCudaRt, TagCpuOmp2Blocks, TagCpuTbbBlocks,
     //   TagCpuOmp2Threads, TagCpuSycl, TagCpuTbbBlocks, TagCpuThreads,
     //   TagFpgaSyclIntel, TagGenericSycl, TagGpuSyclIntel
+
+    alpaka::printAccTags<alpaka::EnabledAccTags>();
     return alpaka::executeForEachAccTag([=](auto const& tag) { return example(tag); });
 }
diff --git a/include/alpaka/acc/Tag.hpp b/include/alpaka/acc/Tag.hpp
index f7880afd6f15..7ad166059f65 100644
--- a/include/alpaka/acc/Tag.hpp
+++ b/include/alpaka/acc/Tag.hpp
@@ -7,6 +7,7 @@
 #include "alpaka/core/BoostPredef.hpp"
 
 #include <iostream>
+#include <tuple>
 #include <type_traits>
 
 #define CREATE_ACC_TAG(tag_name)                                                                                      \
@@ -69,4 +70,21 @@ namespace alpaka
         alpaka::TagFpgaSyclIntel,
         alpaka::TagGpuSyclIntel>;
 
+    //!  \brief Function to print the names of each tag in the given tuple of acc tags
+    //!  \tparam TTuple is the type of the tuple of tags
+    template<typename TTuple>
+    void printAccTags()
+    {
+        // Check if the tuple is empty using std::tuple_size
+        if(std::tuple_size<TTuple>{} == 0)
+        {
+            std::cout << "No Acc Tags!";
+        }
+        else
+        {
+            std::cout << "Acc Tags: ";
+            std::apply([](auto... args) { ((std::cout << args.get_name() << " "), ...); }, TTuple{});
+        }
+        std::cout << std::endl;
+    }
 } // namespace alpaka