[libc-commits] [libc] [libc] Add Multithreaded GPU Benchmarks (PR #98964)

[Joseph Huber via libc-commits]

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@@ -104,6 +107,11 @@ class Benchmark {
 
 #define BENCHMARK(SuiteName, TestName, Func)                                   \
   LIBC_NAMESPACE::benchmarks::Benchmark SuiteName##_##TestName##_Instance(     \
-      Func, #SuiteName "." #TestName)
+      Func, #SuiteName "." #TestName, 0)
+
+#define SINGLE_THREADED_BENCHMARK(SuiteName, TestName, Func)                   \
+  LIBC_NAMESPACE::benchmarks::Benchmark SuiteName##_##TestName##_Instance(     \
+      Func, #SuiteName "." #TestName,                                          \
+      LIBC_NAMESPACE::benchmarks::BenchmarkFlags::SINGLE_THREADED)
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jhuber6 wrote:

I'm thinking that we might want a `SINGLE_WAVE_BENCHMARK`. And what that can do is just call `gpu::get_lane_size()` and mask off all the threads above a single lane.

https://github.com/llvm/llvm-project/pull/98964